petに使える3dガンマ検出器 液キセノンtpc - kek...lp (j/g) 96.26 kek 01 / 12 / 2015...
TRANSCRIPT
PETに使える3Dガンマ検出器
液キセノンTPC
田内利明 (KEK)
アクティブ媒質TPC開発座談会、2017年4月22日
TXePETイメージ(液体キセノン検出装置のみ)
XEMIS2 : Small animal PET, which will be tested for 2017 -2020 in CHU-Nantes, France, Subatech group
断層撮影から3次元立体撮影へ
Lt1
Lt2
Lt3
Lt4
Liquid level gauge (15cm)
Lt5ch1
γ-source 137Cs,7.34KBq
α-source:α2 241Am,200Bq
Front-end electronics
α-source:α1 241Am,200Bq
Pt100
2012.7.4
LXeTPC prototype -1
5cm drift, mesh grid with1mm gap
4x4 pads readout, 7.5x7.5mm/pad
PMT1 (up) : R5900; DY1 - 12 20.7uA at +900V(max) Q.E.=20%@175nm
(2003.11.28)
PMT2 (down) : R7600; DY1 - 10 23.9uA at +900V(max) Q.E.=30%@175nm
(2009.06.15)
Ctest = 2pF
Pre-amp (A250) NIM 16ch post amp CAEN/N568B 16ch ( shaping amplifier)
DAQ : CAMAC FADC 500MHz 2ch/module 8bits/3.3V, 8k words/ch FADC 20MHz 16ch/4modules 8bits/2V, 1k words/ch ADC 2249W 12ch, 11bit integrated ADC 0.25pC/count, 800nsec gate
Trigger: pmt1xpmt2, test pulse, cosmic HV power supplies - positive (brown) : PMTs - negative cathode, PMT3(cosmic)
2012.8.28
Event classifications by scintillation lights
γ
α2 α1
scintillation (PMT1)
scintillatio
n (PMT2
)
scintillation (PMT1)
scintillation (PMT2)
scintillation (PMT1)
scintillatio
n (PMT2
)
cosmic ray
γ
cosmic rayscintillatio
n (PMT2
)
scintillatio
n (PMT2
)
scintillation (PMT1)
scintillation (PMT1) scintillation (PMT2)
α2 α1
scintillation (PMT1)2012.12.10-2013.1.19
2012.8.28
Raw signal charges
2012.9.18
α1 α2 α1 α2
time/50ns time/50ns
time/50ns time/50ns
no. o
f events
no. o
f events
no. o
f events
no. o
f events
PAD6 PAD7
PAD10 PAD11
Charges/pad (peak of D-Gaussian fit) of α1,α2 and γ, 2012.12.20-12.31 (8 days)
α1
α2
γ
cosmic
Gaussian peak/maximum PH
662keV (?)
Gamma’s ( subtracted peaks of α1 and α2 )
2012.12.10-2013.1.19 2012.12.10-2013.1.19
Averag
e/RM
S pu
lse heigh
t
note : the anode plane at 125
4cm
137Cs
241Am (59.4keV)
electron lifetime : 77±7μsattenuation length : 12±1cm
impurity :6ppb
grid (125)
grid (125)
α1 α2
Pulse
heigh
t (pa
d by
D-G
auss fit)
drift time /50ns drift time /50ns
0.000#
0.100#
0.200#
0.300#
0.400#
0.500#
0.600#
0.700#
0.800#
0.900#
1.000#
0# 50# 100# 150# 200# 250# 300# 350# 400#
Q.gamma#
ph.alpha#
Gas#Xe#
Gas#Xe#scaled#
anode HV (V)
Tran
sparen
cy or e
fficien
cy o
f the
grid
1 2 3 4 5 6 7 in E2/E1
operation
Grid Transparency
0.00#
0.50#
1.00#
1.50#
2.00#
2.50#
0.0# 0.2# 0.4# 0.6# 0.8# 1.0# 1.2# 1.4# 1.6#
Drift velocity in Liquid Xe
Electric field kV/cm
drift velocity mm/μs
Xe gas, 1.4atm
Liquid Xe▲
▲●
●
●●
●
● : T.Ogar, NIMA695,125(2012)
Xe Liquid at 165K
TPC cathode =-2.5kV, anode=+255V
2011.10.6.1832PMT1=PMT2=+720V
TPC cathode =0V, anode=0V
scintillation PSD (PMT1)
scintillatio
n PS
D (P
MT2
)
scintillation PSD (PMT1)
scintillation PSD (PMT2)
α
γ
scintillation PSD (PMT1)
scintillatio
n PS
D (P
MT2
)
scintillation PSD (PMT1)
scintillation PSD (PMT2)
α
γ
Pulse Shape Discrimination (PSD)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
PSD1 vs PSD2psd1_psd2
Entries 51000Mean x 0.234Mean y 0.3833RMS x 0.1153RMS y 0.1003
PSD1 vs PSD2
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
1000
2000
3000
4000
5000
PSD1 vs PSD2psd1_psd2_pyEntries 51000Mean 0.3822RMS 0.1006
PSD1 vs PSD2
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
500
1000
1500
2000
2500
PSD1 vs PSD2psd1_psd2_pxEntries 51000Mean 0.2339RMS 0.1154
PSD1 vs PSD2
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
0.2
0.4
0.6
0.8
1
PSD1 vs PSD2psd1_psd2_pfx_px
Entries 50039Mean 0.4684RMS 0.243
PSD1 vs PSD2
TPC cathode =-2.5kV, anode=+255V
scintillation PSD (PMT1)
scintillatio
n PS
D (PMT2
)
scintillation PSD (PMT1)
scintillation PSD (PMT2)
α
γ
16:04 16 Oct. ~ 13:49 19 Dec. 2016
0.00#
10.00#
20.00#
30.00#
40.00#
50.00#
60.00#
70.00#
80.00#
90.00#
100.00#
12.08.20# 12.09.09# 12.09.29# 12.10.19# 12.11.08# 12.11.28# 12.12.18# 13.01.07#
2012.8.23-2013.1.19
Electron life time and impurity in Liquid XeElectron
life time in
μsec
5
10
20
Impurity in ppb
E1=0.5KV/cm (drift) 30
Summary : LXeTPC prototype -11. Preamp : Al 16 ch OK ( 2012 July - 2013 May ) 2. Purification : gas circulation at 1.3ℓ/min for about three months 8/23-9/9 (17days)smooth increase of charge signals followed with saturation 10/-12/10 (71days) increase with CH warm-up/day followed with saturation 3. Impurity estimated by γ spectrum of 137Cs(662keV, Compton edge) after 2nd saturation:life time=77±7μs, attenuation L.=12±1cm, 6ppb 4. Grid transparency as a function of E2 good agreement with the expectation from the micro-megas results transparency=0.76 at E2/E1=5.2, mesh aperture=0.57 5. Drift velocity as a function of E1 1.6mm/μsec at E1=0.5kV/cm (1.3mm/μsec in Xe gas at 1.4atm) 6. Preparation of TPCFE09 (ASIC) in the chamber 168mV/fC, -7fC<Qin<+7fC at room temperature by simulation and test bunch 0.2V/fC expected at 165K ( peaking time = 1μsec)
ASIC・TPCFE09
Parameters TPCFE09(TPCFE1x)
dynamic range -75fC~+25fC -500fC ~ -5fC
gain 2mV/fC 10mV/fC
gain tolerance ~1%
ENC 400+25/[email protected]
cross talk ~1%
peaking time 0.5, 1 and 2 us
power dissipation <10mW/ch
Temperature range -110 ~ + 25℃
# of channels 16chADC none (10bit/10MHz)
TPCFE09 : 2nd version of FEXE09
UMC 0.25um process
together with the neutron groupYuta Takagi (Yokohama N. univ.) , Takatoshi Higashi (Saga univ.), Takahiro Fusayasu(NIAS) , Hirokazu Ikeda(JAXA) , Manabu Tanaka(KEK)Open-It (Open source consortium for detector instrumentation) collaboration
Designed by Open-IT ;
Schedule 1. Circuit design was completed, Mar.2010 2. Simulation was completed 3. Layout design was passed to the company on 24 Nov.2010 4. Tape out was(?) submitted by end of January 2011 5. Delivery in Summer 2011 6. Test in Autumn 2011
ASIC gain
ASIC noise
Y. Takagi, Mater Thesis, Yokohama National University, 2011
Gain in [ mV/
fC ]
ENC [ N
umbe
r of e
lectrons)
Mother board of TPCFE (16ch), version -1, for test, Jan-Mar 2013 studied by Yuya Iwazaki, Yokohama National University
GN-1294-1(FR4), based on Takagi’s M thesis
DC offset tuning circuit
DC coupling
Output
Input
test pulse
output
input
test
protected with diodes
changed to 100kΩ for prototype-2
changed to AC coupling for prototype-2
x 10
∴ x 20
R1=R2=5.1kΩ : R25=R26=100kΩ Gain=19.6 GN-1294-2(LTCC)
DCリターン
AC結合
168mV/fC at room temperature
-7fC to + 7fC
~200mV/fC at 165K
GN-1294-2(LTCC), AC-coupling
Input charge (fC)
Outpu
t voltage
(mV)
Dynamic range (linearity) of Ch1 (5.1kΩ, 102kΩ)
Hear Exchange
Second Cooler
Liquid xenon Cryostat
First cooler (pulse tube)
TMP
現在のセットアップ ( 2015 ~ )
予冷システム(Heat Exchanger +Second Cooler) を構築し、Xe純化のためのガス流量の大幅な増大を期待している。
これまで、最大で1.5ℓ/分であったが、10ℓ/分程度まで安定な自動運転が可能なことが得られた。
~ 4.5ℓ/分 で定常運転。
KEK 01 / 12 / 2015
SUBATECH KEK
Gas flow (l/min) 31.3 4.5 7.5 11.0
T inside cryo T2 (ºC) -100.7 -106.9 -106.5 -106.3
PT1 (ºC) -106 -107.9 -107.5 -107.3
PT2 (ºC) 18.1 -58.5 -50.3 -44.1
PT3 (ºC) 24.5 -1.5 6.7 11.7
PT5 (ºC) -104.4 -104.7 -104.3 -104.0
T1 (ºC) -104.4 -98.6 -98.5 -98.5
PTR (164 K@24 W)
Gas flow (l/min) 4.5 7.5 11.0
Cold Head T (ºC) 164 164 164
PTR Power (W) 29 29 29
Heater (W) 11 8 6.5
Cooling Power (W) 18 21 22,5
@ L,tb-Vrr. lt:*o.flbc-o8 Stt =144n OCC̀
WO _2D P
1C W
ater( B
ttr\ o'-.o1.T
,
6+ ..
b T
S
IT
4 C
. O7 3 H
1
~~
l
ic
`
`
c
6t %e
A V 2 % %`%
(b H
P7 , C2
12)4 P `
D Hcatcr3 b
12 .a% )% ,A 7
% %
P : )0
g o9 b T
87
: :
(4 r
By courtesy of Kasami-san
KEK Cryogenics Set-up — Data (18 - 26/11/2015)
PTR
Coo
ling
Pow
er (W
)
0
5
10
15
20
25
Gas Flow (l/min)
0 1,5 3 4,5 6 7,5 9 10,5 12
*Average values during stability *PTR power from KEK measurements
35 by Sara Diglio and Lucia Gallego (Subatech)
∆P (M
Pa)
0,025
0,03
0,035
0,04
Gas Flow (l/min)
0 2 4 6 8 10 12
∆P (MPa)
@ L,tb-Vrr. lt:*o.flbc-o8 Stt =144n OCC̀
WO _2D P
1C W
ater( B
ttr\ o'-.o1.T
,
6+ ..
b T
S
IT
4 C
. O7 3 H
1
~~
l
ic
`
`
c
6t %e
A V 2 % %`%
(b H
P7 , C2
12)4 P `
D Hcatcr3 b
12 .a% )% ,A 7
% %
P : )0
g o9 b T
87
: :
(4 r
SUBATECH KEK
Gas flow (l/min) 31.3 4.5 7.5 11.0 4.5
PT2 (ºC) 18.1 -58.5 -50.3 -44.1 -58.5
PT3 (ºC) 24.5 -1.5 6.7 11.7 -2.1
Efficiency (%) 99.9 86.1 86.1 86.5 86.3
Cp (J/g/K) 0.34
Lp (J/g) 96.26
KEK 01 / 12 / 2015
Heat Exchanger Efficiency
By courtesy of Kasami-san
∆P
Effic
ienc
y (%
)
70
75
80
85
90
95
100
Gas Flow (l/min)0 2 4 6 8 10 12
38
Figure 1: (left) 3D drawing of the PTR, heat exchanger and the connection with cryostat. (right) Schematic of XEMIS cryogenic system.
PERFORMANCE OF HEAT EXCHANGER To estimate the performance of the present heat exchanger as a function of recirculation rate, it is necessary to measure the pressure and temperature at inlet and outlet. Concerning the pressure drop, the one in the shell side is measured from the difference of pressure at inlet and at cryostat (outlet). For the tube side, because the valve between the outlet and the pressure sensor is used to adjust the flow, the pressure at the outlet can only be measured directly at highest flow (~33 NL/min, the valve is fully opened). In order to estimate the pressure at outlet, we assume that the pressure drop is proportional to the xenon mass inside the heat exchanger, which can be obtained from the LXe level measurement. The result of pressure drop is shown in Figure 2 (left). The pressure drop in the tube side is much bigger due to the vertical distance between cryostat and heat exchanger (~50 cm). The measurement of temperature difference is shown in Figure 2 (right). The temperature at cold end is quite stable (tube side: ~-103 ºC, shell side: ~ -101 ºC), which indicates that there is heat exchange between LXe and GXe inside heat exchanger even at small flow (~2.5 NL/min). Compare with the assumption of pressure difference between tube/shell side and temperature difference at the cold end for the design of heat exchanger (0.5 bar, 6 K), the observed values are much smaller (~0.15 bar, 2 K). The efficiency of heat exchanger (ε) as a function of recirculation rate can be estimated as:
QFTC warmp u'u
� 1H (1)
Where Q (W) is the thermal duty to recondense a given gaseous xenon flow F (g/s)*. Cp (J/g/K) and ΔTwarm (K) are the specific heat of xenon and the temperature difference at warm end†, respectively. The measurement of cooling power is shown in Figure 3 (left), which shows that the change of cooling power is nearly unobservable at high flow. The efficiency estimated by Equation 1 is shown in Figure 3 (right). It is 99% even at high flow, which is even better than its design value (95%) or the performance of the plate heat exchanger described in [6]. CONCLUSION The measurement indicates that the performance of coaxial heat exchanger is better than its designed value. Based on its good performance and high strength, it may not only be a good solution for ReStoX, but also be a good device for all LXe experiments like DARWIN [5] project.
* Is converted from the flow (NL/min) measured by flow meter † The outlet of tube side and the inlet of shell side, which are close to room temperature
(g/s)(W)
99.0
�Twarm = PT3� PT2 by Sara Diglio and Lucia Gallego (Subatech)Q(W ) = (Lp + Cp ⇥�T )⇥ F
Frontend ElectronicsOptimized setup, 22 October, 2015
TPCFE09 (ASIC 16ch)±1.25V PS
Buffer amplifiers±2.5V PS
4x4 anode pads+300V anode HV grid (GND, mesh 1mm gap) Test pulse
TPC (5cm drift)
Twist pair cables
LXeTPC prototype -2
TPCFE09
TPCFE09 :
BUFFER AMP
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
SW_500N
SE_1UG_PRE
MO_IN
CLKIN
TPC-FE 16CH
入力コネクタCN1-TPCFE間は最短距離配線
CN1(内層に配線し、GND面ではさむ)
U9(TPCFE)は基板裏面に配置
TESTIN
Thru-hole (D=1.2mm) Murata_GRM43DR72J104KW01LSEI HVCB2010FKC1M00 TDK_C4532X7R2J104K
(+400V)
1M Ohm 1W 1% 50ppmMaximum Working Voltage=1700V
+ HV
(from Power Supply) (to Detector)
ASIC(TPCFE09)BOARD2/2ANODE(PAD)BOARD1/2
16CHSINGLEOUTPUTKAPTONCABLE + GROUND2PIN
HV,TESTSIGNAL,GROUNDINDIPENDENTCABLE
S2_
SE
L
S1_
SE
L
AM
P_S
EL
VL1
VL2
VL3
VL4
VL5
VL6
VL7
VL8
SD
OU
TC
LKO
UT
XIN[15:0]
AOUTP6AOUTM7
AOUTP4
AOUTM[15:0]
AOUTP7
AOUTP[15:0]
AOUTP11AOUTM12
AOUTP12
AOUTM5
AOUTM13
AOUTP3
AOUTP13AOUTM14
AOUTM3
AOUTP14
AOUTP5
AOUTM4
AOUTM6
AOUTP8AOUTM8
AOUTP9AOUTM9
AOUTP10AOUTM10
AOUTM11
AOUTP15AOUTM15
AOUTM0AOUTP0
AOUTM1AOUTP1
AOUTM2AOUTP2
XIN0
XIN1
XIN2
XIN3
XIN4
XIN5
XIN6
XIN7
XIN8
XIN9
XIN10
XIN11
XIN12
XIN13
XIN14
XIN15
XIN2
XIN3
XIN4
XIN5
XIN6
XIN7
XIN8
XIN9
XIN10
XIN11
XIN12
XIN13
XIN14
XIN15
XIN0
XIN1
AOUTM[15:0]
AOUTP[15:0]
XIN[15:0]
+1V25(TPC)
-1V25(TPC)
-1V25(TPC)
+1V25(TPC)D
-1V25(TPC)
+1V25(TPC)
+1V25(TPC)D
-1V25(TPC)D-1V25(TPC)D
-1V25(TPC)
+1V25(TPC)
+1V25(TPC)
-1V25(TPC)D
+1V25(TPC)D
-1V25(TPC)D
+1V25(TPC)D
-1V25(TPC)D
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
TPC-FE
A2
1 1Saturday, February 15, 2014
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
TPC-FE
A2
1 1Saturday, February 15, 2014
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
TPC-FE
A2
1 1Saturday, February 15, 2014
C118
1P/1608
1 2
T12
TESTPIN
1
JT14 PIN0.81
C142
501R15W102KV4E/2125
1 2
R166
HMC0805JT500M/2125
R155
HMC0805JT500M/2125
JT32PIN0.8 1
R169
HMC0805JT500M/2125
R145 0/1608
T5
TESTPIN
1
C93
0.1U/1608
1
2
JT26PIN0.8 1
C92
0.1U/1608
1
2
C164
10U/16081
2
R136 0/1608
JT10 PIN0.81
T9
TESTPIN
1
C136
501R15W102KV4E/2125
1 2
R165
HMC0805JT500M/2125
C110
1P/1608
1 2
JT20PIN0.8 1
JT19PIN0.8 1R161
HMC0805JT500M/2125
R150
2K/1608
C119
1P/1608
1 2
C103AMK325ABJ337MM
1
2
R170
HMC0805JT500M/2125
C108
1P/1608
1 2
JT33PIN0.8 1
JT6 PIN0.81
C870.1U/630V/X7R/4532
R141 0/1608
T13
TESTPIN
1
T6
TESTPIN
1
T2(HOLE_1.2)
1
C130
501R15W102KV4E/2125
1 2
JT27PIN0.8 1
R149510/1608
C116
1P/1608
1 2
JT15 PIN0.81
JT2 PIN0.81
C122
0.1U/1608
1 2
JP1
HEADER 2X2
1234
C111
1P/1608
1 2
R138 0/1608
T15
TESTPIN
1
JT21PIN0.8 1
R164
HMC0805JT500M/2125
T17
TESTPIN
1
R144 0/1608
JT11 PIN0.81
C109
1P/1608
1 2
JT34PIN0.8 1
JT17 PIN0.81
C105AMK325ABJ337MM
1
2
C135
501R15W102KV4E/2125
1 2
T14
TESTPIN
1
C132
501R15W102KV4E/2125
1 2
JT28PIN0.8 1
C117
1P/1608
1 2
R158
HMC0805JT500M/2125
JT7 PIN0.81
C97
0.1U/1608
1
2
C127
501R15W102KV4E/2125
1 2
C99
10U/16081
2
T16
TESTPIN
1
C128
501R15W102KV4E/2125
1 2
JT22PIN0.8 1
R133 0/1608
R131 0/1608
JT16 PIN0.81
T1(HOLE_1.2)
1
JT18 PIN0.81R154
51/1608
JT3 PIN0.81
JT35PIN0.8 1
C100
10U/1608
1
2
R163
HMC0805JT500M/2125
R135 0/1608
C95
0.1U/1608
1
2
R160
HMC0805JT500M/2125
VR110K/1608
R140 0/1608
JT29PIN0.8 1
C114
1P/1608
1 2
JT12 PIN0.81
C90
0.1U/16081
2R1471K/1608
R156
HMC0805JT500M/2125
JT23PIN0.8 1
C98
10U/16081
2
R143 0/1608
JT8 PIN0.81
JT36PIN0.8 1
C134
501R15W102KV4E/2125
1 2
TPC-FE
U9
XIN<0>97
GND98
XIN<1>99
GND100
XIN<2>101
GND102
XIN<3>103
GND104
XIN<4>105
GND106
XIN<5>107
GND108
XIN<6>109
GND110
XIN<7>111
GND112
GND113
XIN<8>114
GND115
XIN<9>116
GND117
XIN<10>118
GND119
XIN<11>120
GND121
XIN<12>122
GND123
XIN<13>124
GND125
XIN<14>126
GND127
XIN<15>128
AOUTP1533AOUTM1534AOUTP1435AOUTM1436AOUTP1337AOUTM1338AOUTP1239AOUTM1240AOUTP1141AOUTM1142AOUTP1043AOUTM1044AOUTP945AOUTM946AOUTP847AOUTM848AOUTP749AOUTM750AOUTP651AOUTM652AOUTP553AOUTM554AOUTP455AOUTM456AOUTP357AOUTM358AOUTP259AOUTM260AOUTP161AOUTM162AOUTP063AOUTM064
VS
SD
65V
SS
D66
GN
DD
67G
ND
D68
VD
DD
69V
DD
D70
GN
DD
71C
LKIN
72M
O_I
N73
GN
DD
74G
ND
D76
SW
_500
N77
SE
_1U
78G
_PR
E79
GN
DD
80
GN
D83
S2_
SE
L_O
UT
84G
ND
85S
1_S
EL_
OU
T86
GN
D87
AM
P_S
EL_
OU
T88
GN
D89
VD
D91
VD
D92
GN
D93
GN
D94
VS
S95
VS
S96
VS
S1
VS
S2
GN
D3
GN
D4
VD
D5
VD
D6
GN
D7
IBIA
S8
GN
D9
GN
D12
VL1
13
VH
214
VH
315
VL4
16
VH
517
VH
618
VH
719
VH
820
VR
EF
21
GN
D22
GN
DD
23
SD
OU
T24
CLK
OU
T25
GN
DD
26
VD
DD
27
VD
DD
28
GN
DD
29
GN
DD
30
VS
SD
31
VS
SD
32
NC
10
NC
11
NC
75
NC
81N
C82
NC
90
R137 0/1608
C104AMK325ABJ337MM
1
2
T11
TESTPIN
1
C120
1P/1608
1 2
R187
(0/1608)
C131
501R15W102KV4E/2125
1 2
CN37
JUMP COAX1
2
JT30PIN0.8 1
C101
10U/16081
2
C115
1P/1608
1 2
T10
TESTPIN
1
JT4 PIN0.81
C102
AMK325ABJ337MM
1
2
JT24PIN0.8 1
C91
0.1U/16081
2
C139
501R15W102KV4E/2125
1 2 JT13 PIN0.81
C112
1P/1608
1 2
C140
501R15W102KV4E/2125
1 2
R162
HMC0805JT500M/2125
R146 0/1608
T7
TESTPIN
1
C129
501R15W102KV4E/2125
1 2
C106
1P/1608
1 2
R153 2K/1608
JT1 PIN0.81
C121
1P/1608
1 2
T4(HOLE_1.2)
1
C138
501R15W102KV4E/2125
1 2
R159
HMC0805JT500M/2125
R129
1M/500V/5125
JT31PIN0.8 1
R1483.9K/1608
C141
501R15W102KV4E/2125
1 2
JT9 PIN0.81
C96
0.1U/1608
1
2
R142 0/1608
R139 0/1608
C107
1P/1608
1 2
R1512K/1608
C165
10U/16081
2
JT25PIN0.8 1
C94
0.1U/16081
2
R152 2K/1608
CN41(2PIN JUMPER)
S1
G2
C137
501R15W102KV4E/2125
1 2
R132 0/1608
C113
1P/1608
1 2
R168
HMC0805JT500M/2125
JT5 PIN0.81
T8
TESTPIN
1
R167
HMC0805JT500M/2125
R157
HMC0805JT500M/2125
C133
501R15W102KV4E/2125
1 2
R134 0/1608
C88
0.1U/1608
1 2
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
TPC-FE 16CH
(LEMO_STRAIGHT)
POWER_INPUT
GND(0V)
VDD(+1.25V)
VSS(-1.25V)
SIG OUTPUT
BUFFERBOARD1/2
16CHCOAXIALOUTPUTKAPTONCABLE
GND(0V)
+POWER+/-2PINGROUND2PIN
OUT[15:0]
OUT0
OUT1
OUT2
OUT3
OUT4
OUT6
OUT7
OUT8
OUT9
OUT10
OUT12
OUT13
OUT14
OUT15
OUT5
OUT11
OUT[15:0]
+1V25
-1V25
+1V25S
-1V25S
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
OUTPUT CONNECTOR
A4
1 1Saturday, February 15, 2014
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
OUTPUT CONNECTOR
A4
1 1Saturday, February 15, 2014
Title
Size Document Number Rev
Date: Sheet of
<Doc> <RevCode>
OUTPUT CONNECTOR
A4
1 1Saturday, February 15, 2014
R171
51/1608
R179
51/1608
GPIN3(JP-4)
1 2
R178
51/1608
CN13(2PIN JUMPER)
1
2
CN9(2PIN JUMPER)
1
2
CN10(2PIN JUMPER)
1
2
CN39
(PPIN)
1
R183
51/1608
CN18(2PIN JUMPER)
1
2
CN6(2PIN JUMPER)
1
2
CN14(2PIN JUMPER)
1
2
GPIN1(JP-4)
1 2
R182
51/1608
R173
51/1608
R172
51/1608
GPIN4(JP-4)
1 2
R186
51/1608
R177
51/1608
CN12(2PIN JUMPER)
1
2
CN20(2PIN JUMPER)
1
2
CN40
(PPIN)
1
R176
51/1608
C125NFM31PC276B0J3
2
1 3
CN17(2PIN JUMPER)
1
2
C124AMK325ABJ337MM
1
2
R181
51/1608
CN44
(PPIN)
1
R180
51/1608
CN5(2PIN JUMPER)
1
2
C126AMK325ABJ337MM
1
2
R185
51/1608
CN7(2PIN JUMPER)
1
2
CN19(2PIN JUMPER)
1
2
R184
51/1608
CN11(2PIN JUMPER)
1
2
C123NFM31PC276B0J3
2
1 3
CN8(2PIN JUMPER)
1
2
CN16(2PIN JUMPER)
1
2
CN15(2PIN JUMPER)
1
2
GPIN2(JP-4)
1 2
R174
51/1608
CN38
(PPIN)
1
R175
51/1608
BUFFER AMP
ASIC AC coupling
x 20
Ctest =1pF
Test pulse : the input charge with 50Hz, 0.025V w/ 31dB, 0.7mV, Ctest=1pF, i.e. 0.7fC; FETPC09+buffer amp. gain / 2 = ~ 200mV/fC with each 50Ω in series in the output ∴ The output voltage at the buffer amp = ~140mV ∴ FADC20MHz : 140/7.8=18 counts expected
2016.11.7
Performances of test pulse run
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
1600
gamma-ch4gamma-ch4
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
gamma-ch8gamma-ch8
200 400 600 800 1000
0
200
400
600
800
1000
gamma-ch12gamma-ch12
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
gamma-ch16gamma-ch16
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
1600
gamma-ch3gamma-ch3
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
1600
alpha-ch7alpha-ch7
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
gamma-ch11gamma-ch11
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
gamma-ch15gamma-ch15
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
1600
gamma-ch2gamma-ch2
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
alpha-ch6alpha-ch6
200 400 600 800 1000
0
200
400
600
800
1000
1200
alpha-ch11alpha-ch11
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
gamma-ch14gamma-ch14
200 400 600 800 1000
0
200
400
600
800
1000
gamma-ch1gamma-ch1
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
1600
gamma-ch5gamma-ch5
200 400 600 800 1000
0
200
400
600
800
1000
1200
gamma-ch9gamma-ch9
200 400 600 800 1000
0
200
400
600
800
1000
1200
1400
gamma-ch13gamma-ch13
results of the test pulse runs for 100 triggers
pulse
heigh
t
time, 50ns/ch
0 20 40 60 80 1000
0.2
0.4
0.6
0.8
1
Peak:alpha1fadcpk_alpha1Entries 0Mean 0RMS 0
Peak:alpha1
0 20 40 60 80 1000
50
100
150
200
250
300
350
400
450
Peak:gammafadcpk_gammaEntries 1015Mean 13.89RMS 2.134
Peak:gamma
0 1 2 3 4 5 6 7 8 9 100
50
100
150
200
250
300
fit-peak/ph-peakfadcpk_phpeakEntries 1015Mean 0.9104RMS 0.116
fit-peak/ph-peak
0 20 40 60 80 1000
0.2
0.4
0.6
0.8
1
Peak:alpha2fadcpk_alpha2Entries 0Mean 0RMS 0
Peak:alpha2
0 50 100 150 200 2500
0.2
0.4
0.6
0.8
1
Peak:cosmicfadcpk_cosmicEntries 0Mean 0RMS 0
Peak:cosmic
200 400 600 800 1000
0
100
200
300
400
500
600
700
800
alpha-ch6alpha-ch6
200 400 600 800 10000
50
100
150
200
250
300
350
400
alpha-ch7alpha-ch7
200 400 600 800 1000
0
100
200
300
400
500
600
700
alpha-ch10alpha-ch10
200 400 600 800 1000
0
50
100
150
200
250
alpha-ch11alpha-ch11
2012.8.28
Raw signal charges
2016.11.08
α1 α2 α1 α2
time/50ns time/50ns
time/50ns time/50ns
no. o
f events
no. o
f events
no. o
f events
no. o
f events
PAD6 PAD7
PAD10 PAD11
0
500
1000
1500
2000
2500
2016/9/90:00 2016/9/290:00 2016/10/190:00 2016/11/80:00 2016/11/280:00 2016/12/180:00 2017/1/70:00
α2
γ
Prototype-2 : The signal growth in LXeTPC, Sep.-Dec.2016 4.5ℓ/min
0"
1000"
2000"
3000"
4000"
5000"
6000"
7000"
8000"
9000"
10000"
08.23" 09.12" 10.02" 10.22" 11.11" 12.01" 12.21" 01.10" 01.30" 02.19" 03.11" 03.31"
Prototype-1 : Growth of charge signals (α2)
date from Aug.23 to Mar.31, 2012
total cha
rge from
α2
12.10 - 1.19
10.1 - 1.20
CH-warm up/day
~1.3ℓ/min
Summary : LXeTPC prototype -2
1. New front-end electronics system, all 16 channels, is working since April 2016. TPCFE09 is in the Liquid Xe chamber, while the buffer amplifier is outside of the chamber. TPCFE09 AC-coupled to the buffer amplifier, the total gain is ~ 200mV/fC
2. Very stable operation of the cooling and the gas circulation/purification system the gas flow rate is ~ 4.5ℓ/min.
3. The signal growth is very slow compared to the prototype-1, although the gas flow rate incresed from 1.3ℓ/min to 4.5ℓ/min.
4. We will try to increase the purification by adding a getter.
5. The best solution must be to set all the frontend electronics and cables outside the chamber as much as possible.
( 2013 April - 2017 April )