muon group meeting - sscllss.fnal.gov/archive/other/ssc/ssc-gem-tn-92-102.pdf · jrawings and...
TRANSCRIPT
GEM TN-92-102
Muon Group Meeting - SSCL
April 29, 1992
Abstract:
Agenda, attenders, and transparencies of the GEM Muon Group Meeting held at the SSCL on April 29, 1992. The meeting was to focus on preparations for the TIR tests this summer. Agenda items: General Issues; Review of Baseline; Definition of Goals for TIR Test; Status Reports of R&D Efforts; Discussion of TTR Test; Update on Simulations; Preparations for May 5 Cost Review; Assignment for TDR Preparation; and Discussion/Review.
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;genda o: ~/29/92 GEM Muon Group Meeting:
~he meeting is to focus on preparations for the TTR tests this summer. You technology proponents are requested to bring all relevant engineering jrawings and updated milestone/schedules. Please be prepared to discuss now your technology will be tested for resolution (spatial and timing) and alignment.
111 General Issues: (Taylor) 8:00 AM - 8:15
12 I Review of Baseline: - mechanical layout (Nimblett) 8: 15 AM - 8: 4 5 - system performance (Sullivan) 8:45 AM - 9:00
I 3 I Definition of goals for TTR tests - chamber performance {MitselmakherJ 9:00 AM - 9:15 - alignment tests (Paradiso) 9:15 AM - 9:30
14 I Status Reports of R&D efforts - csc (Polychronakos/Whitaker) 9:30 AM - 10:00 - RPC (Pless/Wuest) 10:00 AM - 10:30
(Coffee Break) 10:30 AM - 10:45
- St. Petersburg csc (Vorobyov)
AM
AM AM
AM AM
AM AM
AM
- PDT (Bromberg/Miller I 10:45 AM - 11: 15 AM - LSDT (Osborne/Korytov) 11: 15 AM - 11: 45 AM
15 I Discussion of TTR tests 11 :45 AM - 12:00 PM
(buy "working lunch•) 12:00 PM - 12:15 PM
16 I Update on simulations - hit level Monte Carlo (Chiaki I 12:00 PM - 12: 30 PM - neutrons (Wuest) 12: 30 PM - 1:00 PM
I 7 I Preparation for May 5 cost review (Nimblettl 1:00 PM - 1:15 PM
181 Assignments for TOR preparation (Taylor) 1:15 PM - 1:30 PM
19) Discussion/Review (Group) 1:30 PM - 2:00 PM
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FRANK TAYLOR
General Issues
-Status of Muon System: FET4/29/92
(1) Baseline performance:
o momentum resolution:
meets design goal in barrel region < 5 %
needs improvement in endcaps (11.8 % versus 10%)
o chamber coverage:
100 % in endcaps with e and 4> overlap
95 % in barrel withe overlap (loss in 4> between sectors)
gap between barrel and endcaps
small angle coverage only down to 9.75 degrees
o backgrounds:
hadron punchthrough OK for 12 and 14 A.
neutron background being evaluated
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o fluence from Cu the same as from U
o magnitude of fluence a few 105/cm2 sec
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-Figure 19: The 6 figures on this and the next two-pages show the paths of neutrons hitting the first drifl chamber (Z=S.75 m). A and B are for the copper case, C and D for copper • with no FCAL, E and F for copper with no forward elements. A, C and E are for neutrons with k.inetic energies greater than 100 keV (note, no particle has energy greater than 20 Mev); B, D and F for neutrons with kinetic energies less than 100 keV. Only one SSC event is illustrated. waters/ 4-4-92 -
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-(2) Outstanding Issues:
o alignment system: -+ aware of problem - how to achieve cr - 25 µm ? - how to integrate chamber technologies ? - integration with a GEM system ?
o calorimeter: - can 12 and 14 A. really be achieved ? ~a5'(CV~t1 L. l't) - neutron background Cu versus ~ tJ.. ~(Ck S'~"'" "'' U. )•
reconstruction of LlEµ in calorimeter ? · 1 .. ,-". ~. - I'/-..
o flux concentrator: + longer will help oPµ/Pµ at Tl = 2.5 - move EC chambers further out ?
. . . . . . . . .
o<IJ coverage 1n barrel ( tn-tp'l"oV• qr"'/...)
-
o 9 coverage between barrel and end caps ( 4 e- ~ !!'t Cevc: ,,.,~..l).
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8 LAYERS
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• • • • f • • • •
L
-Contingencies:
o CSC everywhere - channel count/costs ? - Russia to fabricate electronics ?
o LSDT everywhere can radial wires be fabricated for EC ?
- how to trigger ?
o PWC trigger in both endcaps and barrel
o White Paper on trigger alternatives
o What are the engineering/cost implications ?
T'DR
Chamber Technologies:
TTR:
RD5:
- performance evaluation in TTR summer '92 layer resolution with cosmics · absolute alignment needed (25 µm)
- test CSC at CERN fall '92 - hadron punchthrough
Decisions:
o criteria:
Choices:
- layer resolution 100 µm/b - 75 µm/ec - alignment a - 25 µm - pattern recognition
pileup sensitivity to backgrounds
- costs number of layers affordable
- who makes it ?
- CSC for endcaps - RPC trigger barrel - PDT tracking barrel - LSDT tracking barrel
-
-
-..
...
-
..
..
..
-
What is neede0 for TDR:
• .. -
o more engineering support for alignment and system integration
o hit level Monte Carlo - study pattern recognition problems - determine robustness of Pµ resolution - detailed simulation of trigger
performance evaluation/physics processes
o neutron background calculations - started at LANL
o measurement of chamber sensitivity to neutrons - started at MIT
o cost review 5/5/92
o plans and sched,ules for - chamber fabrication - electronics fabrication - support structure - alignment
..... . ,.., ...
-
-FRANK NIMBLETT -
-Review of Baseline - Mechanical
-
..
--
..
...
GEM Baseline Mechanical Layout
• Barrel Region Muon System
•• Pressurized Drift Tubes
• 2/3/4 Chambers per layer (inner/middle/outer) • 81114 Layers per Superlayer • Le¥er arm 4. 78 meters • Channel Count -- 110,000
• • Limited Streamer Drift Tubes
• 11212 Chambers J>er layer (Inner/middle/outer) • 8/8/4 Layers per Superlayer • Lever arm 4.78 meters • Channel Count - 91,000
• • Resistive Plat• Counters (Tri111r}
. a.,.,,.•••••••• Dr• 1 ... Lftlf ..
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• • Barrel Region Support Structure
• Aluminum Tube Truss Modules (trapezoidal) • Bolted and pinned elev-is lolnts • Plate structure around middle chamber layer • 16 modules per end (32) • Modules tied together to form space-frame • Modules attach to cryostat ends • Magnet Interface --dfametral and axial iscilation
...
• Forward Region Muon System
•• Cathode Strip Chambers ... • Chambers arranged in "Flower-Petal" array
modules • Module total is 16 r.er end (3~ • Two types of modu es require for this ...
assembly (A &B) • 4/8/4 Layers per Superlayer for high "Tl" • 4/4/4 Layers per Superlayer for remainder • Bend plane channel count - 241,876 • Nonbend plane channel count - 29,640 ...
•• Forward Region Support Structure
• Aluminum Tube Truss Modules (trapezoidal) • Bolted and relnned clevis joints • 8 "A" modu es and I, .. Modules per end (32) • Modules tied 1CO-ther to form space-frame • Assembly of ~frame on FFS (simple
rotary fixture to permit radial loading) • FFS used to transport forward muon system
Into the magnet • Forward Muon System transferred to Barrel . R,eglon.Jluoo ~ · .
' -·.. . - :-- . ... .. .. ~- . ..:..~.- -
•• .:;,c,~;;ci'-9;~ .... Change• -• Baseline Resolution mismatched between
modules A &B. • Proposed change makes resolutions nominally
equal In both 1Wz module -• Slmple switch o z-axls positions of chambers 7a and 7b is atl that Is required. ( a no cost Improvement in the system)
• Pro~ose making FFS outline ~arallel to the smallest theta ( 9.75° or "9.5 °" center of chamber) rather than current projective 8.7°. -
..
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~ r ' r· .. ,."' ... ·:7:rwo Typee °' Endcap • 6 ' • • I • ' ..... --.-..-.I - • ._ ...... , .......... · Me4hllel......u·-
17.01'
11.41" 1.71'
1.7"
12MNAllWl..Nd
iff·~ ""· ns·lf!·· ··~···~'"-"'"-· ... ·_!·fl l Z
-.:: Two l\ddllloMI Clwnller ~
~-·
)
GEM MUO~ SYSTEM (BASELINE) (4/8/4 layers for Theta = 9.75° to 11.45°)
GEM Muon Sy- (BASELINE) 41814•-9.75"to11.45'
Drawn Bv: F. Nlmbl.n Rev(·)
Dwa. No: GMUOOOI 3127192 Approved by:
f
Stay-Clear Space (6 cm 7 Electronics
Muon chambers
Forward calorlmeter
0.834 m
0 0 .,... 0 LO .,... c.o en c.o c.o c.o II II II
N N N N Borated Polyethylene (1 O cm
Shield (10 cm Pb + Structure)
Calorimeter/Endcap Muon System Interface
f f f • • f f f
F. Nimblett 3/25/92
f •
. J )
Y t 15.00m
-11 0.25111
·~:;:~i:t~::f:ti:~,?,{'f::;?:M:i:~:::#..ffi::§:t.¥,,~:JJK···
...... d PolV9lhYllne 110-1 lllleld (10 cm Pb + Slruclur9)
GEM MUON SYSTEM ACCESS WALKWAY ILLUSTRATED
(PLAN VIEW)
)
17.01'
~11.45'
~II~~
t't>•>•-.•t'll - I B z -II N
llJn>-' QIUI_.,_ (-PIMW View)
0..WnBv: F. Nlmblett
Own.No: GMU00011 Approved by:
)
Rev(-)
31271112
f
GEM MUON SUPPORT STRUCTURE (CLEVIS JOINT ASSEMBLY)
Cover Plate (partially cut away) , .
\111
Bolt I Washer
f f f f f
Joint Coupling
End Fitting
Truss Element Tube
I
• f f f •
)
·-·········-······ ----················ .................................. .................................. ~ :::.·.· .. ·:::: .. ·: .. ·:: .. ·.": .. ":."."." .. ·.·::.~
CHAMBER \ \~'····························
----1-i---..\1)~~-:-::~·:·:·:·:·:-:-:·:."::·:·:·:·:·:·:·:-:·:·:·:·:-:: I ::.~·::·:·:·:·'.·'.-:·:·:·:·:·:·:·:·'.·'.·:·'.·'.·:·I . _ .. _ .. _._ .. _ .. ::.·:: .. ·:.".·: .. ·:.·::::: .. •.·.
\ \ ,~:-:-:-:-:·:·:·:·:·:-:-:-:-:-:-:-:-:·:·:·:·:~·:. FLEXURAL FOOT' j :·:·:·:·:·:·:·:·:·:·:·:-:-:-:-:·:·:·:·:·:·; \ -~ ................. ii.~
CHAMB!ft INTERFACE STRUCTURE
JOINT
SIDE-PLANE TRUSS ELEMENT
................... ~ ..................... 1:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:i ...................... ..................... ~-··················
!·:::::::::::::::::::' ....................... ......................
1'.Ji·:~~::::::~::::::::::E~ .................... ........................ ........................
TRUSS CROSS-MEMEBER
)
TRUSS JOINT {SIDE VIEW)
~. NlllBl.ETT Dnlpot Lo-ry 15Jllm..ry1"2
)
•
GEM MUON SUPPORT STRUCTURE (CLEVIS JOINT ASSEMBLY)
Cover Plate (partially cut away)
Bolt I Washer
Joint Coupling . ; End Fitting
Truss Element Tube
(Corner Joint Illustrated)
• • • • • • • • • •
)
..
GEM MUON SUPPORT.STRUCTURE (CLEVIS JOINT ASSEMBLY}
Cover Plate (partially cut away)
Bolt I Washer
•
,, ").
Jol~J· Coupling .. 1.
I
· ·.. E"d Fitting I .
~· ' ' 1~1'
'
Truss Element Tube
(End Joint Illustrated)
)
•
rt 15.00m
-II o.25m ; . . . . . . . . . . . . . . . . . ..... •. . . . . . . . . . . . . . . . . . . . . . ........ . • • • ••• 1 :- ••• • • • • • 'lj. ••••
... ... .. . ··-·-~·· .. ,,_., ··~···
,._.·,=·=::·~=-==:=--- .. · ,,. <:·: :=:===:-:';:}Jf(fJ:~ {/ESWt&i?.@::::::=~=~:=:::::::::·:·=· --==r:--:·:-= .,,,,:::.: ='=~===:::=::·=-··.
'it" ?pe Af.W~
11.01•
~'-
Bor81ed Poljtlltt,..... 110 an)
• •
12 MN Axlal Load
q .......... , ... ~ I z - ~
.:i.:IM I Shleld 110 cm Pit+ llructln)
GEM MUON SYSTEM (BASELINE) (4/8/4 layers for Theta = 9.75° to 11.45°)
With Baseline LAr Calorimeter Illustrated
Details of lmerf•ce with the endcep ""'°" •ystem and the beamplpe •hleld with , .. PCM ••rd
IOrlrneter rem•ln
• • • • •
-" N
0re1111911' IL.llft
GEM Muon Syetem (BASELINE) (LAr Celortmeter)
Drawn Bv: F. Nlmblett Rev(-)
Dwg.No: GMU0012 31Z7/92 Approved by:
• • •
) ) )
0.25m
.... , ...
Bonded Pol,-:~,,._,
) ) ' )
15.00 m
. :· ..... . •• '( • • • f
:;:::~~tff:;:§:;r:~~H :?/: :)r:]~fftJ:.=::,;:r· :~·:·· ..... -:~}:::·: ::,::::·=:::
) ) )
21.IO"
·a .. T1 P. MoJ..lc..
17.01'
11.45' 9.75'
8.7"
12 MN Axt.I Loed
•'f I z I B .. _ .. _ .. _... __ ill ill M .:i.:1
I : .
'· 1· '·· ·I.·;\ I_,. , I
Shleld(10cmPb+.., 11 .. :·• '"
GEM MUON SYSTEM (BASELINE) (418/4 layers for Theta= 9.75°to11.45°)
With Baseline LAr Calorimeter H~Listrated
Details of Interface with the endcap muon system and the beamplpe shleld with the Forward
C&lorlmeter remain un
-II N
-GEM Muon Sy9tem (BASELINE)
(LAr Colorl-) -
Or8wnBv: F. Nlmblott . (-)
Dwa.No: GMU0012 3127192 Approved by:
) -
JIM SULLIVAN
REVIEW OF BASELINE- SYSTEM PERFORMANCE
) ) ) ) ) ) ) )
25 GEM Baseline 1 w\th (magnetic) central membrane
Barrel 'End Capts) B c - 27.71 17.01 11.45 9.75 cro - 1.0E-04 7.5E-05 7.5E- 7.5E-05
20~ aint = 5.0E-05 5.0E-05 5.0E- 5.0E-05 2.5E-05 2.5E-05 2.5E-0 2.SE-05 aext =
E t- ~lay = 0.04 0.05 0.05 0.05 t N, " 8/ 8/ 4 4/ 4/ 4 4/ 4/ 4/ 8/ 4
• (/) Inn = 3.92 5.93 5.93 6.78 .~
x 15 Mid = 6.31 10. 13 11.43 11. 43 0
(jut = 8.70 14.57 16.08 16.08 ll) [ Xo = 0. 118 0.150 0. 150 0.300 (/)
L . ll)
> 10 (/"I c 0 L
~
I f-
511-
I I I I . ---- ,.. ,.. ......... ,.. ..... ,,.. ........ -...
0 -- -·---
0 5 10 15 20 25 Beam ax(s, m
GEM Muon Rev 2: 3/30/92
.µ
Q_
........
.µ
Q_ <J
GEM BaselLne 1 WLth (magnet le) central membrane .25
r I
o Pt = 10 GeV t:.. Pt = 25 GeV
. 201- + Pt = 50 GeV x Pt = 100 GeV ~ pt = 250 GeV ..... pt = 500 GeV
. 1st-~ Pt = 750 GeV z Pt = 1000 Ge V
. 10
.05 _ _/ --+
~ lfi LUI
0. 00 '--~ - - -- -0.0 . 5 1. 0
Y)
GEM Muon Rev 2: • • ' 4 • 4
* ,,,,___ - a F-=
1. 5
3/30/92
•
2.0
4
2.5
4 4
)
E
• Cl'I -~
x 0
(U
Cl'I L (U
> Cl'I c 0 L f-
) ) ) ) ) ) )
GEM Baseline 1 with (magnetic) central membrane 25r-r-..,..-,--,--..-,---,---.---.--r-o--,--.-.---,--,--,-..-,---,-,-,---.--,-~
20
15
10
5
Be ao a int -O"ext /Ji lay -Ni Inn -Mid -Dut -Xo
Barrel 27.71
1.0E-04 5.0E-05 2.5E-05 0.04 81 81 4 3.92 6.31 8.70 0. 118
End Cap 17.01 7.5E-05 5.0E-05 2.5E-05 0.05 4/ 4/ 4 5.76
10. 13 14.75 0.150
s) 11.45 7.5E-5.0E-2.5E-Q 0.05 41 41 5.76
11.43 16.25 0. 150
o~I. I ' I 0 5 10 15 20 25
Beam oxts, m Muon s~stem: No overlap forward
) )
9.75 7.5E-05 5.0E-05 2.5E-05 0.05 4/ 8/ 4 6.60
11. 43 16.25 0.300
)
•
.µ
(L
..........
.µ
(L <l
GEM BaselLne 1 wLth (magnetLc) central membrane .25..----.--,...--..--.--,--,..----.--,...--,.--.--,--,---.----.--.--.---.---r------.-r---r-.--r-r--,
o Pt = 10 GeV bi. Pt = 25 GeV
.20 + pt = 50 GeV x Pt = 100 GeV ~ Pt = 250 GeV .,. Pt = 500 GeV
. 15 ~ Pt = 750 GeV z Pt = 1000 Ge V
. 10
. 05~ 'I' __/
~---~ ,,, CJ
0. 00 I I I I I I ;" I I I I I I I I I I I I I I I I I I I 0.0 . 5 1. 0 1. 5 2.0 2.5
n Muon system: No overlap forward
I • • • t • t t f t
)
E
~
(I) .~
x 0
(l) (I)
L (l)
> (I) c 0 L I-
) ) ) ) ) ) )
GEM Baseline 1 with (magnetic) central membrane 25 .
20
15
10
5
Be CYQ CYint -CY ext /), 1 ay -
Ni Inn -Mid -(jut -
Xo
Barrel 27.71
l.OE-04 5.0E-05 2.SE-05 0.04 81 81 4 3.92 6.31 8.70 0. 118
~1 •. I 1
End Cap 17.01 7.5E-05 5.0E-05 2.SE-05 0.05 41 41 4 5.76
10.30 14.75 0.150
s) 11.45 7.5E-5.0E-2.5E-Q 0.05 41 41 6. 11
11.60 16.25 0. 150
o~,,,, 1,,,, 1 ,~,, 1,,,, 1
0 5 10 15 20 25 Beam axis, m
Muon s~stem: Lldd numbered sectors
)
9.75 7.5E-05 5.0E-05 2.5E-05 0.05 41 81 4 o.95
11. 60 16.25 0.300
)
GEM Basellne 1 Wlth (magnet Le) central membrane .25 r I
0 pt = 10 GeV A pt = 25 GeV
. 20~ + pt = 50 GeV x Pt = 100 GeV ~ pt = 250 GeV 'I' pt = 500 GeV
. 1sr ~ pt = 750 GeV
.µ z Pt = 1000 Ge V (L
'-..
...... (L <J . 10
.05 _ __/ "" -""''--~~~~~~~~:-:::==~--~ ..... ~
¥ -
- 0 j~
0. 00 I I I I I I ~ I I I I I I I I I I I I I I I I I I I 0.0 . 5 1. 0 1. 5 2.0 2.5
n Muon s~stem: Ddd numbered sectors
f ' t ( c c c c c c '
E
• (I) .~
x 0
(\) (I)
L (\)
> (I) c 0 L
f-
) )
GEM Baseline 1 with (magnetic) central membrane 2 5 •..---r-r--.-..----T--.--.-...---r--.--r--.--r-r--r--ir-r---r--r--r-r-
20
15
10
5
Be cro er int
O"ext
-
/J.1 ay -
Ni Inn -
Mid -(jut -
Xo
Barrel 27.71
1.0E-04 5.0E-05 2.SE-05 0.04 8/ 8/ 4 3.92 6.31 8.70 0. 118
I 1
End Cap 17.01 7.5E-05 5.0E-05 2.5E-05 0.05 41 41 4 6. 11 9.95
14.40 0.150
s) 11.45 7.5E-5.0E-2.5E-Q 0.05 4/ 4/ 5.76
11.25 15.90 0.150
o~,,,, 1,,,, 1 ,G=:J, 1,,,, 1
0 5 10 15 20 25 Beam axls, m
Muon system: Even numbered sectors
9.75 7.5E-05 5.0E-05 2.5E-05 0.05 41 8/ 4 6.60
11. 25 15.90 0.300
)
•
.µ
(L
"' .µ
(L <J
GEM BaselLne 1 wLth (magnetlc) central membrane .25.-,---.--,---,--T"""""""T-,---,---.--.-,-,--,--,.--,--,---,r--r-----.--,---,--,------,---.--,
0 pt = 10 GeV 1:, Pt = 25 GeV
. 20 + Pt = 50 GeV x pt = 100 GeV ~ Pt = 250 GeV ""' Pt = 500 GeV
. 15 ~ Pt = 750 GeV z Pt = 1000 Ge V
. 10
. 05 ---4---'1' __ _/
~ ---+-e---~
0. 001 I I I I I I I I I I I I I I I I I I I I I I I I I 0.0 .5 1. 0 1. 5 2.0 2.5
D Muon s~stem: Even numbered sectors
• • f • 4 • • • • f
,...
,... VINNIE POL YCHRONAKOS
Cathode String Chambers
-
- This Section is Empty.
-
-
CRAIG WUEST
Resistive Plate Chambers
,...
-.
... 5~<\10
1. Dcs;3..., co~l-ck ~. Me.J,.A....,·c-t- f.,,ti /,e..;~ ,,.,.~rc..e.J..
1 t'fed;roi.itA v.....J.(k fro~ ...
St,;f f~S ~ 7 ~I -~ s
ff""'.µ_ 1~ s~.J _ ~1ct..·--.. A "1' I~ /r~.w- g N L-fJ-Mlk 5fS/--, ~ Of!.N L
4, F1-xfLwe-s, ~~ e~M~ ~"1 ~\.la U- $1.fL.
$. Critic....! P..;i.. r ~ - c,._..ffv.oU...... f./flf" ~~ ~-A:. ~rtJ.;.:;s~.
'· ~ 41'5~ /~,,;;y.,,r) a>rw-A- ~~~ ~ ~ AA- 6v../ ()~.
1- · Mo"-'f€. (A,,...lo fv S~ ck,a-L....r ~ol'\S ~ 1ttf.,.,..%io111 ~V. Td.&-t1.i.Ai., j
IJ. S'Mi rkof{ .;; · vts 11i.-s J r~Jl ....
c sc p'(T)~ -1, re- (,)• i/ ~t : 1. Pr(!viJio"' ~ o..:1 ( "'? ro ~"8/. ..i.. q.rl'-0
t111fite.. Gr<<... o..Ji,"'- - ~ ~,..;4 f~s l'-!0"110/;H;e 'kpus »,...Lt.·pfeAfe.,..s. s1s1~ ~~~ ::5 ~G:S"f ~ (t ~,r.o!iL) ~ f s,"+-~~ C/!IA.FIC ~ IM.oJ.v.k. .•
;l.. ft~),'o"' c.aJ,lbrailo..., S/!>~
3. Tr;~~ ""jWfh ('52. /ti~) w;tl, ~f '~i"1 ( ---:30 ns)
4, f!All !Wvok ~.J :40' t-e,..., iN-f'&l#i e.,le/ wi+4 iybt;JA. ( st.?.tJPI ). !HI cb...J,, fita4Q \61 fJ.,J 1 a. ~ (""i-rr.) eM(d i.,;tc._ TDC.. ~ vf.AI() i<t1tcL. Crossi~ ~~i"-$.
5'. V(Aift ~ {,wJ;: -i ... .;..;,~.....,..,.;- s1s~.
-
-
-
--
-..
--
-
...
-
-
-
"'
li ·~ .. - ~
d .s: 0 ... -j .,.... -- ti
t. :> ~
r~· ... ... :::> • og
"' II ~~ • .. "Q. -l - • ..
• l' •
t 'I I f I , 1 \J\
~_.. .... '6-ai - I I '
•
It- -- •1 • -
-~-
,..
CRAIG WUEST
RPC R & D
-
-g>
I ,.li: :o ca,... .c + 0 11
I (,) > ..J o·
- Cl.> z ..J ..J .....
CD ._
ca
ti) ~ c tn
c
00 c. c.
~
ti) ><
a:
CD Cl.> ... "O
... 0C
s c..O a:~
c
ti) tn
:::s
tn an
0
ca - .
0
0)0
c>-o! CD ca EE
Cl) ..... ca -CL.
eE .c ca oe>
Cl) > ·-..... "' ·-"' Cl) a:
-
--
-
---
--...
...
-
-
-
-
-
-...
...
-...
-
...
..
..
-
" ...
~
~ .... ... !i
.... .. 'II
r
~
-·""' '-I •
-0
-
-
-
"O c: 0 (J CD
~ -c: :::J 0 ()
•
1 o: I :.-.:·:_·:::·::::.::::::.":-·::::·:_:.":·:·:··:-::-:.::·f·:_:·.:·:::::::::.· ::::.·::::.:: ::_::::::: :. f :-·:::::· :: ... ::::·::.: :::·::: ::: :: ; :: :::: :::::::::::::::::::::: : ::: ::-:: f : :: .: : : .. ::.::: .. :: ::: ... :::: ..
: ~= =:=:=:~::===:1:::=:::=-:= : =1 :: ::·::·: :: :=-=t====:==: :: l : : :~:- -= I ' ! I
41-1-··· ...... ······· ········ ········· ·················· ... ·····•··•···········•······ ...... ..... . ........ ·r····· . .... . . .. ....... ... .. . .. . ... ··· I ··· .. ··············· ................... ···· l·· ········ ..
I I. i ' ' I I I ! 31- ······················································-·-···· .................................. · ······················i·······························································t······························································r··········· ··
I I I i I J i !
21-t····························································· .......................................... ····-+ .......... ······ ............. ;. . ........... ..... ..... i ... .
I I I I i ! I i i I I l
I I i
··························································· l ! j
···················································1·····. ·······················································. ····················································- ..
··················································· ....
4 f ~~:-::=:~-=~_:::t==:: ~::: :: t = ::: := t: : :: :-1 ·················· ·····················
3 ··············· ···························
I i I I I I j l ! ;
21-j·························· .. ················ ................. , ............................................................... , ............................................. ···············f "'""''"""'"""""""""·'······················· ··········~······ ··························· l I • : I I ! :
I ' ; ' 1 I I I i I I I
0.1 7 8 9 1 0 1 1 12
High Voltage (kV)
• • • • ( • • • • •
) )
Resistive Plate Counter R&D at LLNL - l.ll
30
·! c ~ 20 ~ c :l 0 0
10
0 y I
0 100 200
PHO for RPC exposed to Co-60 cathode plate with Cr facing In, anode plate with Cr facing out, Red curve: +10 kV Blue curve: +9.8 kV Green curve: +9.6 kV RPC output through x 10 PM amp Into Ortec 672 with G-500x0.5 ADC with 0.1 V LLD and 8.0 V ULD 2 minutes for each spectrum
300 400 500 600 ADC Channel number
)
------· -----
...- ---------
~~---------------- -----___..-----
' I I
' ; '
' I ' ; i I ! ; . ' i ' I I I i I I I 1 I ' I I I I I
l
'l'
-------------
~
n:: w CL < :::c l/)
0 --' w '-'-a Q'.: < 3 Q'.: 0 '-'-~
-' ' I I I
I I -i ,i
i I I ! I I
/ / -i ,' I I
/! ...
I -I
I
L_ --
-
-...
..
-
-
--------
•
Outer RPC box layout - 4 chambers overlap per sector x 16 sectors x 2 halves = 128 chambers
15.0 cm--1 t-_ typ. --i r--
- 15.0 cm overlap
. . . T : : : . . . • • • . . . . . . • • • : ~ : • • • • • • l ! : 329.6 cm • • • . . . • • • : : : . . . : : : l_ . . .
I I : ' •
• •
~ 380cm ~ ~ 380cm ~J_
1475.0 cm ""
• • • ( • • •
scm typ.
•
) ) ) ) ) )
This sketch shows a concept for an RPC support frame made using a carbon composite structure with box-channel cross beams with 5.0 cm width and height, positioned approximately every 134 cm to prevent the RPCs from sagging. If we use 1/4"honeycomb sheet for stiffening corresponding to a maximum uniform loading of 0.036 psi, and take the box channel wall thickness to be 0.3 cm, and the edge wall thickness to be 0.3 cm then the box beams are calculated to sag about 0.002 inches across the 3.3 m span. The top view shows an isometric wire frame model. and the bottom view shows the side of the frame with the RPC boxes installed with the proper overlap. This sketch is for the inner-most chambers. The carbon composite frame attaches to the the RPC frames .
·-- 1475.6 cm ,---
••••••
~ --15cm
,, I I I I II
)
gas in
' •
Outer RPC layer
380 cm, 42 strips 8.9 cm wide,
Cable length and weight (RG-174/U):
329.6cm 253 strips 1.3cm wide
gas out
(168 x 10 cm)+ 6 x (253 x 17 cm)+ (253 x 10 cm) - layer interconnects
+ (380/2 cm + 1095 cm) x 42 + (350/2 cm + 329.6 cm + 380 cm + 365 cm) x 40 - bend plane strips + (380/2 cm + 329.6 cm + 365 cm + 329.6 cm) x 42 + (365/2 cm + 329.6 cm + 365 cm + 329.6 cm) x 41
+ (329.6/2 cm) x 253 - non-bend plane strips
= 2.76 x 10 .. 5 cm x 2.95 x 10 .. ·4 lb/cm= 81.5 lb
• f • • • •
4 overlayed RPC layers 3 strips overlap, don't use first and last strips on upper RPC s. Longitudinal strips are or'd together.
f f •
) )
·--,--
) ) ) 'I
1475.6 cm
Carbon frame weight calculation: assume edge supports are 3 mm thick, box channel wall thickness is 3 mm, density 1.6 g/cm**3, Box channel 5.0 cm W x 5.0 cm H, side members are 15.0 cm wide (5 cm RPC + 5 cm RPC + 5 cm box channel) Carbon frame weight:
2 x (0.3 x 1475.6 x 15) + 2 x (0.3 x 330.2 x 15) + 40 x (0.3 x 329.6 x 5) + 44 x (0.3 x 356 x 5)
= 5.95 x 10**4 cm**3 x 1.6 g/cm**3 x 2.205 lb/1000 g = 210 lb
)
••••••
--15cm
I ,,,,,,,,,,,,.,,,,WfaWt<}"''''I I
4
Densities: Bakelite and all materials except Honeycomb and foam = 1.5 g/cm**3 Honeycomb= 0.435 g/cm**2 (7.9 lb/cu. ft., 1/4" thick with 0.02" aluminum skins) Foam = 0.2 g/cm**3
Areal Mass of two layer RPC = 2 x (0.435 g/cm**2) + 0.8 cm x (1.5 g/cm**3) + 0.8 cm x (0.2 g/cm**3) = 2.23 g/cm**2 = 3.17 x 10**-2 psj
For four 380 cm x 329.6 cm outer sector chambers:
4 x (380 cm x 329.6 cm) x 1 in**2/(2.54 cm)**2 x 3.17 x 1 o••-2 psi - 2462 lb
Alumlnum U-channel framework: U-channel@ 3.81 cm H x 5 cm W with 0.159 cm thick ribs, 2.14 cm**2 cross section
4 x ((380 cm x 2) + (329.6 cm x 2)) = 5677 cm perimeter
5677 cm x 2.14 cm**2 x 2.7 g/cm**3 x 2.205 lb/1000 g = 72,3 lb
• ( • • • • • f • •
) ) ) ) ) )
Outer Cermet RPC cross section and weight calculation: total thickness= 3 cm
Densities: Coated Mylar and all materials except Honeycomb and foam = 1.5 g/cm••3 Honeycomb= 0.435 g/cm**2 (7.9 lb/cu. ft., 1/4" thick with 0.02" aluminum skins) Foam = 0.2 g/cm**3
Areal Mass of two layer RPC = 2 x (0.435 g/cm**2) + 0.102 cm x (1.5 g/cm**3) + 0.8 cm x (0.2 g/cm**3) = 1.18 g/cm**2 = 1.68 x 10**-2 psi
For four 380 cm x 329.6 cm outer sector chambers:
4 x (380 cm x 329.6 cm) x 1 in**2/(2.54 cm)**2 x 1.68 x 1 o··-2 psi - 1305 lb
Aluminum U-channel framework: U-channel @ 3.81 cm H x 5 cm W with 0.159 cm thick ribs, 2.14 cm**2 cross section
4 x ((380 cm x 2) + (329.6 cm x 2)) = 5677 cm perimeter
5677 cm x 2.14 cm**2 x 2.7 g/cm**3 x 2.205 lb/1000 g = 72 3 lb
)
•
Outer Super-Layer Bakelite RPC Total Weight - one half-sector:
Four 380 cm x 329.6 cm RPC chambers = 2462 lb
Aluminum LI-channel RPC perimeter frame = 72 lb
Carbon composite support frame = 21 O lb
RG-17 4/U coaxial cable around chamber perimeter = 82 lb
TOTAL WEIGHT = 2826 lb + 2826 x 0.10 for miscellaneous connectors, brackets, etc.
= 3109 lb
• • • • • • • • • f
) ) )
Outer Super-Layer Cermet RPC Total Weight - one half-sector:
Four 380 cm x 329.6 cm RPC chambers = 1305 lb
Aluminum LI-channel RPC perimeter frame = 72 lb
Carbon composite support frame = 21 O lb
RG-17 4/U coaxial cable around chamber perimeter = 82 lb
TOTAL WEIGHT= 1669 lb+ 1669 x 0.10 for miscellaneous connectors, brackets, etc.
= 1836 lb
)
ALEXIE VOROBYOV
PNPI - Gotchina
Lorentz Angles
-4_ VoA'oS-Yov
PAIP.I. C-a/~i'na.-~
-
-n-/ ' I /'M-e.
...
OUU f. {..u_ cR e_ olcrs_h- .
( k~ f-2 ~ye) I -
~~1·~ aMU,, o?lu ~ea.,Utr~~f-r vf- d r: {-.J. t\J-~ <!.-1\., f--i(<A
..
..
-
••ZS.•
11:: 678.69 ••30.• D:: 248.19 N Su11=829
1 ic:oi
h/ Q_ I I
120] I I
'~~ a)
.
~(!·
.
(• .
' ' ' ' ' 2((1 6((1 1(0'.1 l·1((l ch
Area TOC:_2
11= 348.18 D= 73.74
H s .... =760 ~
I (' I
~I ' ' '
~20 5'+(1 660 ch
Area TDC_l
PHc. 16 BpeMeHHOR (ssepxy) H Koop.AHHaTHbIR (BHH3Y) cneK-rpbl CHT"HaAOB c KaMepbl •
..
-
..
-
..
-...
...
-
-
-
-
Dri_ft velocity G.a.s~: A:r+5°(1}% Eth~:ne ... - ..... -- . - ~-·
55 W (mm/mks)
50
45
4-0
35
30
25
20 0
'
~
<> A
i i ! ' ~
., i '
I fi 1 I ' ' a I i I
I ' "i j
I I ;
f ' l ; ' ' ' I I
l I i
I I I j ' I ! i i I
I I j
0.5 1
SPNPI ( 1991)
Fehlman (1'983)
~ . . I i i i ' ' ' ! l ! A}'.. X: ' I x~ I 'i '
I f x • ~ I I x I -I I ' I
' I ' ' ' ' ' ' i I !
I I I t l ' i ' i i
' i ' t
J ' j ' I I l ' ! l ! ' I
I I I '
I I I I I l I
I i ! I j '
I • I I ' ' I I I !
' i
l I I I 1.5 2 2.5 3 3.5
E (kV /cm)
X B.Da'llm. (1978)
A Jean-Jl['Brle (1979)
PHc. 20 .tlpeHqiosas CKOpOCTb 3.AeK'TpOHOB B ra:JOBOH CMeCH
- Aproit + 503 3TaH •
•
Lorentz angle Gael Ar+50% Ethane
25 Ang~~ ( d!!g)
. _____ _. ________ ... _____ , ______ .. , _____ . Bl=0.5T
'-·------·----·-----··------·
10 t-----·---·------··--t-----~---·-------
5 l-·-----·--l----·-·--··--·l·--t J ____ ttJ. _______ , ___ .
0'--~--1~~-'-~~--L~~-'--~~-'-~--'
0.5 I 1.5 2 2.5 3 3.5 ·
E (kV/cm)
0 ILDa""' (1171) - lflffl X -1D1Dtlllllleu
F'J r. Lorentz angle
Gae: Ar+507o Ethane
Anate (dee) eo,--;=---'-T-=~--...~~-.---~-,----,,
-----r·-----·------·, eo r------,--r-----·1-----r--··---~= i
40
ao -------··· .. ··-·-··-.--·--·-·-····-·--·--·------·-·
10
10 r-···•·•·------•"'•f-•-----· -·f----··-•···l·--·••·-•••••••••••••I··---·-----·-·
o~~~_,_~~~'-~~-'-~~-'--~~--'
O.tl I I.ti I 2.5 3
E (kV/cm)
- Bflffl 0 ILD•- (1171) >< llaminintmeheaa
Puc. 21 YroA llopeuua B ra30110A cMecu Apron + 50% :3Tan .
• • • • • • • • • •
: w -.::i • •
) ) ) ) )
Drift veloci·ty Fif 6r'
W (mm/mks) 100..---'---.---'-~--'-r---.-~-,-~.,---.,.~--.-~....---t"~-,---;-
80 1-----1---f---I·---+-.,.'-•.
60 1-----1----i I -.f--l----~1---
40
20
o~~~~.._~_._~_._~_._~_._~__..~__.---~~~~~~~~
0 0.5 1 1.5 2 2.5 ~ 3.6
E (kV/cm) 4 4.5 5 5,5
~ Xe+30%CF4 -1- C02+30%CF.f __._ C02+00%CF4 -a- C02+10"0F4
PHc. 22 .llpeA!IJOBa.R CKopocTb 3AeKTpOHOB B HOllblX ra30BLIX CMeCJIX •
6
) )
• • w \P •
• •
Lorentz angle H = 1 T
Angle (degrees)
~fb
20 r -I -1 IT~cr ·----·---·-29; I ;~ -__ -L:::bl ___ , __ - --+-··········-·-··--··
15 L---1 I I t----.. ·---·--·--··----.... ····-··--
1 ~ ~-1----1 t1.--t.--1, '* 1. ltt--~------···ltL _______ _
5 ~- ·---· -!-- ·---1 f·-----1 I •--···-·······•···--·-·---
0'---'-----''---'---'---'---'---"---.L---'---'-~,,,L_--J
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
E (kV/cm)
<> Xe+30%CF4 + C02+10%CF4 * C02+30%CF4
PHc. 23 YroA AopeHua B HOBblX ra30BblX cMecsx •
• • • • • • • • •
• • ""' 'jj> •
ROY WEINSTEIN
Cathode Strip Chamber at SCARF
)
E
~
Ul .~
x 0
(\) Ul L (\)
> Ul c 0 L I-
) ) )
GEM Baseline 1 with (magnetic) central membrane 25.-..--.-.--.-.-..--.-.--,_~~-.--~-.-r--.--~-.-.--,-
20
15
10
5
Be ao a int O'ext
-
b.1 ay -Ni Inn -Mid -(jut -
Xo
Barrel 27.71
1.0E-04 5.0E-05 2.SE-05 0.04 8/ 8/ 4 3.92 6.31 8.70 0. 118
End Cap 17.01 7.5E-05 5.0E-05 2.5E-05 0.05 4/ 4/ 4 5.93
10.69 15.44 0.150
J
s) 11.45 7.5E-5.0E-2.5E-0 0.05 4/ 4/ 5.93
11.52 17. 10 0.150
I I o-' . _:::::.-• ---- I I I I I : I I I I I I I
)
0 llll[ J j 5 10 15 20 25
Beam axLs, m Muon system: 3/27/92 --- 8-8~4 100; Case (3) long
9.75 7.5E-05 5.0E-05 2.SE-05 0.05 4/ 8/ 4 6.78
11.89 17.00 0.300
)
GEM Basellne 1 wlth (magnet le) central membrane . 25
r I
o Pt = 10 GeV e. Pt = 25 GeV
. 20f- + Pt = 50 GeV x Pt = 100 GeV ~ Pt = 250 GeV + Pt = 500 GeV
. 1st-~ Pt = 750 GeV
.µ z Pt = 1000 Ge V ()_
'-.... .µ
()_ <J . 10
.05 / ----+'!'---_____/
---4}--~ ----~ ~ e F==
0. 001 I I I I I I I I I I I I I I I I I I I I I I I I !
0.0 .5 1. 0 1. 5 2.0 2.5 n
Muon s~stem: 3/27/92 --- 8-8-4 100; Case (3) long
f f f f • • • • • • •
)
E
• (I) .~
x D
(I) (I)
L (I)
> (I) c D L I-
) ) ) ) ) > )
GEM Baseline 1 with (magnetic) central membrane 25.--.---,---r-1-.--,-,.-,-r---,-,.-,-y--,--r-T-r--.--r--r-r---r-r-r~
20
15
10
5
0
Be cro CYint -CY ext /J. lay -Ni Inn -Mid -(jut -
Xo
5
Barrel 27.71
1.0E-04 5.0E-05 2.5E-05 0.04
I .
8/ 8/ 4 3.92 6.31 8.70 0. 118
I~ 10
End Cap 17.01 7.5E-05 5.0E-05 2.5E-05 0.05 4/ 4/ 4 5.93
10.69 15.44 0.150
I
s) 11.45 7.5E-5.0E-2.5E-0 0.05 4/ 4/ 5.93
11.52 17.60 0.150
15 20 25 Beam axis, m
Muon system: 3/27/92 --- 8-8-4 100: Case (3) longer
) )
9.75 7.5E-05 5.0E-05 2.SE-05 0.05 4/ 8/ 4 6.78
11.89 17.60 0.300
)
GEM BaselLne 1 wLth (magnet l c) central membrane .25 r I
0 pt = 10 GeV t::. Pt = 25 GeV
. 20~ + Pt = 50 GeV x Pt = 100 GeV ~ Pt = 250 GeV 'I' pt = 500 GeV
. 15t-~ pt = 750 GeV
..j.J z Pt = 1000 Ge V CL
..........
..j.J
CL <J . 10
.05~- 'I' ____/
~---~ '-"' CJ - t5 p--::.
0. DOI I I I ,~1 ,'"' I I I I I I I I I I I I I I I I I I I
0.0 . 5 1. 0 1. 5 2.0 2.5 D
Muon s~stem: 3/27/92 8-8-4 100; Case (3) longer
• • • • • t • • ( • •
JOE PARADISO
) ) ) ) ) ) ) ) )
Chamber Alignment at the TTR
* ----·-""'""" ·-4----.. -·--....... -.... ·--·-· _.. .. ............ 1
Issues
• Alignment plans for endcap chambers
• Alignment possibilities for barrel chambers
• Beyond the TTR; Relevant alignment testing ...
- J. Paradiso 4129192
JAP 4129192 • 1
•
Endcap Rig St'!£. Directio'!_ _ _.. ---
®
• Measure relative alignment of 4 chamber planes
I I I I
CiO
• 2 Measurements of each plane set determines rotation about vertical
• Bubble level can determine rotation about strip axis
• Chamber width monitored by invar rod & digital micrometer
JAP 4129/92 - 2
• • • • • • • • • •
) ) ) ) ) ) ) ) )
LSDT Barrel Possibilities
Wire supports
•Currently no alignment proposed for LSDT at TTR (vertical cosmics)
• Plan to implement straightness monitor in Lab tests • How to extract straightness monitor accuracy from cosmic test?
- A monitor at each edge can measure twist (straight back?) -Torque chamber, measure straightness, compare with drift offsets.
- Use additional chamber packages, run vertical alignment.
• Can test alignment at MIT •••
JAP 4129192 • 3
) )
•
Caveats ...
•PDT setup?
- Can define standard alignment fittings that can be used for LSDT,Cathode strip, PDT designs.
• Utility of alignment @ this round of TTR?
- Proof of Concept. •• - Ultimately would like to measure straightness across 3 packages
-+ Future tests, "Hexant" test
• Alignment reference of LSDT's checked optically?
- Measure distance between reference surface & "L3" wire probe - Torque chamber, introduce thermal drift & check correspondence
1 < Precision Measure >
1
~1111111111111 IT ~ JAP 4/29192 • 4
• • • • • • • • • •
) ) ) ) ) ) ) ) )
Straightness Monitor Technologies • GEM may need wide dynamic range
- Lateral Effect Photodiodes -+Linear over 1-2 cm range, but noisier, more expensive,
potentially less precise.
-Quad Cells -+Range can be limited; image larger spot?
• CCD's -+Wide range, but spot large, cell-to-cell nonuniformity,
complicated electronics, data processing, expense ...
•GEM will require long (i.e. >12 meter) path lengths
- Check thermal gradients, lens diameter (F#), light source
,.. Plan to measure at Draper alignment test facility
• Multipoint schemes (needed in barrel)??
- Investigate aligning relative to wire -+ Sag (projecting onto measurement. .. ), drafts, etc. over 15
meters ..•
JAP 4129192 • 5
)
12.00 mm ± 0.025
12.00 mmt 0.025
Center Hne of llrlp no.1
12.00 mm± 0.025
Flduclllf · ·
--+-----'--+!Marie""
Center Hne ol l1rl no. 100
-··.·-$-.·.·
.00 mm ±0.13
l ~ ·~ .·
·~
12.00 mm±0.025 ~~~~~~~~
SCARF UH SSC-GEM-FM-SB 05CU062FR4 4/4/92 - 2
-
-
--
-
---
-
LOUIS OSBORNE
,..
LSDT
-
-
-
-
-
-
-
II. R & D Program.
A, The Tasks
We list the tasks we expect to complete adding in parenthesis the institution( s) bearing
the responsibility:
Y 1) Finish assembly and test of 2, 0.5 m. wide chambers.(MIT) f vh ,,,,;,,.. - 'ff/4)"
V 2) Measure chamber tube performance in magnetic fields.(MIT) d d ,, ~
V 3) Design and build (D & B) 2, 1 meter wide chambers.(MIT)
4) D & B pick-up strip plane.(MIT) JU"'•
J.,.,,,, oltn1~ A-•s•"'''I j"-'" •
V~ 5) Investigate and make thinner cathodes.(MIT & UNY-SB) /J.ft'l•f 6) 'f> le B optical windouw s;stem.(MIT) l,.. 41 'S •
ft-fl,,, J...i J!fCll/'tf
M•y 15
7) D & B tiltable cham~er stand as a cosmic ray muon telescope.(MIT) JI( "' ~
8) Adjoin prototype optical alignment system to the chambers.(MIT, with the help of
Draper Lab.) - 'Yl••'I 'lft()JtCY - ~•Ip F1-o.11c S ()C ~rs~« >toJ
9) Design of apparatus for mass production of chambers; estimate production costs.(U.
of Houston) .. C 0 S 6 • J VIO) Investigate various materials for use as ca.hodes.(MIT) 'fl.ttJ&,,..,.•y f.t "'" 4 '" I'!~.
11) Analyse the data from both; 1) runs taken at Fermilab on a small prototype, and 2)
data with cosmic r~s on the 0.5 m. and 1.0 m. chamberi.{MIT, UNY-SB, & LSU) do It~ V12) Simula .. .;n studiea of the muon system directed toward optimization of the subsystem
and integration with the rest of the detector.(MIT) QI w•y .s " Jt s ti I " !/ V13) Provide chamber electronics, investigate state of the art electronics for TDC's, and
examine scenarios for the use of chambers in a level 1 trigger system.(LeCroy,MIT)
'"'J''"j AJ ._Lt. t t-Olt Sf M St t IVC t°')'
Gases Considered
Argon( A), Isobutane(IB) Sc ~~1;1 ! I A(few 3),IB(lO %), C02
..
A(few 3),IB(10%),C02,CF4 ..
IB( <10%)-non-flammable C02-ohmic,slow ,cool CF 4-flat,fast
1
...
..
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l..i!!CHI /' ./ 4 .,, i LAllDRA TORY FDR NUCLEAR SCIENC MHM:llJSCTTS INSl1TUTE IF lEDIO
lw.... ''"""' I CNIJlllDQ[, 1111 oein M"'
.,..,..
• ' ' 4
PROTOTYPE MUON CHAMBE PARTIAL SECTION
END VIEIJ D I CSC91-04
fif<A\llNG Nr!.
' • f
i-~ ,.
~ -... g I "' ~ .. ~~ " !
() ~
d ~
" I ... -
... ' ; f Cl ~ i
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411 Mitutoy:o __ NEW GENERATION LINEAR HEIGHT GAGE ••-• a11 HIGH ' CCURACY HEIGHT MEASUREMENT SYSTEM WITI uEDICATED DATA PROCESSOR.
Mlluloyo'• New 01n1rallon Lin11r Helghl Oege lncorpor1111 motorized drive and air 1M11~nga wllh 1 bollll·ln c:omprneor for ullr•
"""-· - - ""1<1ppllld ollher by the unlt"o bulll-ln llatt•IY peok or lho AC adapter. Li~.., Height pr111nt1 111 meuurements Oft a brlghl, noureeoent dlop11y wilh owl4chllall rnolullono of .00008"/0.00trnm or .00001•10.oooemm.
FEATURES
• Accurocy (2 + 5U1000),m L • Measured tength In mm
• Squaronou .00024" (24" model), .0004" (40" modol) bocl<llorword.
• Bulll·ln au1om1Uc m111urlng lotce conlroller procfucn conotonl 100gl contact pr1uur1.
• T11chlng Funcllon-10 progromo (200 otops each)
• Macro FuncUon, 10 macro• (20 111p1 Heh)
• Option for m1nu1I or motor drive movomint (tOmmlooc.)
0
~ (" ., ..
518·3t4
9UtLT·IN DATA PllOCE890R
•
----->--Mituto)lo
NEW GENERATION LINEAR HEIGHT GAGE ....... lt8
HIGH ACCURACY HEIGHT MEASUREMENT SYSTEM WITH DEDICATED DATA PROCESSOR.
SPECIAL FUNCTIONS
• Zero. Presa! & Origin Shirt • Inch/mm Seleclion. • Degree/Radian Saleclion, • Ball Probe ,Diameter Compensallon. • Widlh Calculallon (dlHerence between
IWO heights). • Center Calculalion (mean ol two
heigh11). • Max/Min Measurement Hold. ii. 'Hole/Shah Dia. Calculalion .,. Angle Calculalion (from surface plale). • Prob• Position Shill (malnlalns origin
point). . • Tolerance limit Set (upper and lower). • 2·0 M11auremen1 (for holt/ahatt
coordlnatea}. • 2·0 Origin Shift (lo c1n1er of pr•••t
circle). • Axla Alignment (to rotate currant
aKel). • Canter/Diameter Display. • Circle Interpolation. • Center 10 Center Distance. • Angle Diaplay (from llnea lntersecllng
lhe origin). • Mode (program leach/run). • Macro/Edil (register & alter small part
program).
ST ANDAAO ACCESSORIES
966875 c0tOmm ball prot>8 wllh
226320 224115 210041
verticel t>racke1 AC Adopter Ballery Allen key
OPTIONAL ACCESSORIES
154233 Ga99 block for probe ball dla. oompenulion.
154232 Probe for deplh m1a1uremen1. lnterchageabM ••Omm bell probe with vertical bracket (probe •hank dla.: emm) 157211 •2mm baH probe 957212 •3mm boll probe 957283 .. mm boll probo 957214 •t4mm dloc probo 157215 •20mm dloc probo 221111 4i6mm collar (uaad to mount a
probe with .amm shank) 221117 Shonk wtlh M2 ocrow 221111 Shonk wllh M3 ocrow
PROBES FOR MITUTOYO CMMS CAN ALSO BE USED WITH LINEAR HEtGHT AS SHOWN BELOW.
Inch
Pan No. Size
832411 •. 125 832410 •. 260
132411 •. 375
224111: Auxlliory woi9h1 (40g)
1Reng1
Pon No.
83134& 110108 111811
0-24"/0-600mm 0-40" /0-1 OOOmm
'•rt Nama Dile probo A Ol1c probe 8 Holder
Order No.
511-314 511·315
Ball Probe
P1r1 Ho.
932377 132378 132379 1323110 832321
Remark•
•20 •30
mm
For •ltachina lever head
Deocftpllon
81•e
•2 •3 •& ., •10
Linear Height System wllh 11tand1rd acoenories u described above
!""' .
•
...
Th,. .. Co&~oJd fr•Jec.i
( L1)1CfSI~ l...o.j$) ...
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N•e1b.-.o• ,.,.,, t11J1ty Tests
r1•y s-+
Te • t C Ao,.. i e. .. ( 1111 bCdM)
f~ )h,e~l:. ( ( q,U,..,e,..)
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co~
[)(] II
I
I
Z=O
• f
----------15.000 m----------< ••••••111111111111111111111111111111111111111111ttt11•~,~•&~, •• , •••••••••••••••••••••••••••••••••••••••••••• ~
RHH&1& 6 w Fl p if&fl&8'¥tfh"f "~~···;""'.'.-'~';:':""~~.:::.11 ,,. . 111111111111111111111111111111111111111111111111ttt11•~,~•&~, •• , ••••••••••••••••••••••••••••••••••••••••••••
:;;-:;;-
~
••• L•1J015mm i·~- __ ~
---------- t- II
•
Z-&000 Z-6100 Z-8500
~l!.llW IA ii~@OO (Calorimeter Sm OD x12m Long}
{ 1 Omm RP Cs 1/0/0)
• • • • •
27.7°
R=611~
R=4220
Z=16500
•
-i 4R .. 3.790m
_l - -9.4o
--
F. NIMBLETT GEM920131
• •
-
-
-
-
11.250 ii 10.4180
R=8010mm
RPCs(10mm)
I I
I I \ I \ I
' W=2 74mm
10.418°. · 11.250 I I
' ' ' ' ' I I
' ' I I I I I I I I
"
I I
I
/ .......
!~~!.....~~~~~-f ~t:::~;:Si::::::~·,,,' R=6115mm
W=22 9 mm ,,
_./
LSOl's
R=4220mm
' I I I I I I
' .. l
Web 5() mm Thick !
R=4000mm
L=3.790 m " " " " II II
" u II II \I II . " . " " . • •
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(endview)
Calorimeter Tube
F=Omm
F. Nlmblett GEM920102
Barrel
Layer r(m)
lAla 4.1 lAlb 4.1 1A2a 4.1
. 1A2b 4.1 lBla 4.3 lBlb 4.3 1B2a 4.3 1B2b 4.3 2Ala 6.0 2Alb 6.0 2A2a 6.0 2A2b 6.0 2Bla 6.2 2Blb 6.2 2B2a 6.2 2B2b 6.2 3Al 7.9 3A2 7.9 3Bl 8.2 3B2 8.2
Sect Totals Gnd Totals
Chamber Inventory: GEM LSTD System. for 8-8-4 system, 16 sectors
l(m) w(m) chmbrs. total wgt/sect vol/sect /sect chmbrs (lbs.) litres
3.80 0.70 1 32 294 307 3.80 0.80 1 32 310 358 3.80 0.70 1 32 294 307 3.80 0.80 1 32 310 358 3.70 0.80 1 32 304 350 3.70 0.75 1 32 296 325 4.30 0.80 1 32 340 400
4.30 0.75 1 32 331 372 5.60. 1.15 1 32 507 764 5.60 1.00 1 32 475 655 5.60 1.15 1 32 507 764 5.60 1.00 1 32 475 655 5.40 1.00 1 32 462 634 5.40 1.20 1 32 504 774 5.90 1.00 1 32 494 688 5.90 1.20 1 32 538 840 7.45 1.10 2 64 1275 1900 7.45 1.10 2 64 1275 1900 7.25 1.10 1 32 625 926 7.65 1.10 1 32 651 974
22 10,267 14,251 704 328,544 456,032
..
...
wires bridges /chmbr /chmbr
112 12 128 12 112 12 -128 12 128 12 120 12 128 12 120 12 184 16 160 16 184 16 160 16
.. 160 16 192 16 160 16 192 16 ... 176 20 176 20 176 20 176 20 -3,424 344
109,568 11,008
-
...
ANDREY KORYTOV
Lorentz Angles for LSDT
,...
,...
This Section is Empty. -
-
-
,...
,...
CHIAKI YAMAGISAWA
,..
Hit Level Monte Carlo Studies
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1 IO: GEM Muon System FROM: Frank Taylor SUBJECT: Outline of Muon part of TOR/Task Assignments
5/2/92
~t the Muon Steering Committee meeting 4/29/92 the following task assignment~ ~ere made to write the Muon chapter of the TOR. The first draft is due in the PM office by 5/29/92. Please submit your section to FET@MITLNS by 5/22/92 for :ompilation using Microsoft Word.
I have not worked out a detail page allocation of each section at this time. Please ~rite enough to cover the subject. At_this time length is not an issue. Jur overall allocation is about 150 pages.
If anyone has a suggestion for other (essential! topics which need coverage ?lease send me an E-mail message and a volunteer.
(0) Abstract (Frank Taylor)
(1) General description of physics mission of muon system - Higgs detection - Z* detection
(Simulations group - Roger McNeil et al.)
(2) Desired characteristics of muon system as driven by physics mission (Simulations group - Roger McNeil et al.I
13) Description of muon system - overview - sagitta method - forward flux concentrator - precision tracking - behind thick calorimeter to reduce backgrounds
(Frank Taylor)
(4) Summary table of muon system/Tucson baseline (Frank Taylor)
(5) Mechanical layout of system - support structure - deflection analysis - chamber coverage - interface f ixturinq - installation procedure
(Frank Nimblett)
(6) Detailed specification of magnetic field - Bz and Br - integrals for bend power - Lorentz angle considerations (Polychronakos/CSC and Korytov/LSDT) - field mappinq requirements and technique
(Jim Sullivan)
(7) Alignment system - criteria of system (error analysis) - design - engineering data to support design
\Joe Paradiso)
(8) Momentum resolution - magnet system performance - energy fluctuations in calorimeter - combined performance
(Jim Sullivan, with help from Larry Rosenson and Frank Taylor)
(9) Trigger concept
...
...
....
...
-
-
- barrel region - endcaps - rates
(Maged Atiya and Irwin Pless, with help from Chiaki, Vinnie, and Roger)
(10) Backgrounds - low bias muon background
hadron punchthrough {how many lamda and what material) neutron background how detector responds to neutrons - estimate rates (Roger McNeil, with help from Craig Wuest, Lou Osborne, and Laurie Waters)
( 11 l Pattern recognition performance (Chiaki Yanagisawa et al.)
(12) Sample physics analysis with hit-level Monte Carlo (Simulations group - Roger McNeil et al.)
(13) Possible system upgrades {Larry Rosenson)
-(14) Description of technologies
-
-
-
I 15 l
I 16)
(17)
- mechanics - electronics - gas system - utilities and requlrments for environmental control
(CSC - Polychronakos and Whitaker) (LSDT - Osborne) (PDT - Bromberg and Miller) (RPC - Pless and Wuest)
R&D program: - TTR - test beam program
(Mitselmakher)
Fabrication and assembly - support structure - chambers (foreign construction) - elect.::onics - support buildings requirements
(Nimblett)
Costs and manpower estimates (Nimblett)
(18) Schedules (Nimblett)
,,,.... (19) Summary (Taylor)
-