agata detector characterization : scanning setup at orsay concept of the orsay scanning system
DESCRIPTION
AGATA detector characterization : scanning setup at Orsay Concept of the Orsay scanning system (last Agata week – K. Hauschild) Status and plans A. Lopez-Martens & A Korichi for the Orsay (IPN-CSNSM) Group. PC Linux [NARVAL] + SDLT + 1.3 TB NAS. EM shielded and air conditionned - PowerPoint PPT PresentationTRANSCRIPT
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AGATA detector characterization: scanning setup at Orsay
Concept of the Orsay scanning system (last Agata week – K. Hauschild)
Status and plans
A. Lopez-Martens & A Korichi for the Orsay (IPN-CSNSM) Group
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LN2
XYZ table
Ge segment andanode signals / NaI
500 MBq
Digital [TNT]/Analogueelectronics
Industrial PC
ScanningScanning
PC Linux [NARVAL]+ SDLT + 1.3 TB NAS
NaI
Linux
Experimental hall at the CSNSMExperimental hall at the CSNSMExperimental hall at the CSNSMExperimental hall at the CSNSM
EM shielded and air conditionned Area & EMC control
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Concept : xyz Table + TOHR (Orsay)
Digitalelectronics
Focal point
2r
F e
dd’
Positionning rods
Tungten sheet
Brace
•40 triangular–shaped 200m thick W-plates •Plate separation : 200 m•200 m diameter holes on a hexagonal lattice
Agata detector : movmentXy movmentTohr : z movment Coincidences : 6 NaI detectors
Intense Source : 15 mCi
Volume /scan point : 2 x 2 x 2-3 mm3 : 3D Scan of the whole detector
From simulations, the number of single interaction Compton scatter events at a given position : 400/h @front face and 10/h @the back of the detector
TOHR NaI Gamma-beam
AGATA Ge
Compton scatter
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Collimated 137Cs delivered : 477 MBq -> 2 kHz
After a heavy safety procedure (A. Lopez-Martens) we are allowed to use the source
Security trolleySecurity lock down
More security
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G4 simulations have shown that TOHR collimator are too thin (K. Hauschild)
Double up the thikness
Recalibration of each TOHR module (focal point) Done (J. Robin & F. Le Blanc)
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Mechanics ready (P. Pariset)A conventional XY table, the motorised rotational plate to turn the AGATA detector and the stepping motor for the z-translation of TOHR : delivered Programming Software for the different movements : done (E. Legay, N. Dosme and X. Grave)
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VME interface ACQ-CAMC
__________________
CAMAC Analogique
___________________
TNT2 + trigger___________________
HT et BT détecteur___________________
ATCA AGATA
The analog electronics: 3x(16 channels) CADC cards developped and tested VME interface ACQ- CAMAC : under way(D. Linget, E. Legay, S. Leboutelier, X. Grave)
Electronics housing :Spécial temperature
Controlled rack
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AP1 Infrastructure : ready
Analogue electronics (48ch) and DAQ (Narval) ready
Digital electronics : 10 TNT2 cards (Gabriela) are under tests at Strasbourg
Commmissioning of the set-up with a real Agata detectorPossible from April 2006
Orsay set-up : Ready to scan summer 2006
Summary
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VME interface ACQ-CAMC
__________________
CAMAC Analogique
___________________
TNT2 + trigger___________________
HT et BT détecteur___________________
ATCA AGATA (plus tard)
PC-Linux ACQ
__________________PC table xy,
Commande moteur__________________
LN2-Auto_
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Status : future prospects
Manque ACQ et électronique analogique
TNT2 cards under tests at iresReady in few weeks
Commmissioning of the set-up with a real agata detectorApril 2006 Ready to scan summer 2006
Liste des gens
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Collimated 137Cs source
‘security’ trolley
‘security’ lock down
more ‘security’
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