meg – pmt cryogenic test: purposes
DESCRIPTION
MEG – PMT cryogenic test: PURPOSES. -SYSTEMATIC TEST OF THE PMT’s FOR MEG IN OPERATING CONDITIONS BUILD AN EVOLUTIVE CRYOSTAT: PHASE 1 MANUAL OPERATION WITH LXe EMPTING/FILLING FOR EACH PMT PHASE 2 MANUAL OPERATION WITHOUT LXe EMPTING - PowerPoint PPT PresentationTRANSCRIPT
PSI - February 3, 2003 1 F. Sergiampietri
MEG – PMT cryogenic test: PURPOSES
- SYSTEMATIC TEST OF THE PMT’s FOR MEG IN OPERATING CONDITIONS
- BUILD AN EVOLUTIVE CRYOSTAT:
PHASE 1 MANUAL OPERATION WITH LXe EMPTING/FILLING FOR EACH PMTPHASE 2 MANUAL OPERATION WITHOUT LXe EMPTINGPHASE 3 TEST OF CARTRIDGE OF PMT’s WITHOUT LXe EMPTING
- SETUP A CRYOGENIC LABORATORY AT INFN-PISA
- GET EXPERIENCE IN HANDLING LXe
- OTHER MEASUREMENTS ON LXe
- TESTS ON OTHER PMT’s AND OTHER DEVICES (APD’s, …)
FOR THE MOMENT … PHASE 1
PSI - February 3, 2003 2 F. Sergiampietri
MEG – PMTct – Cryogenic/Vacuum Diagram
PSI - February 3, 2003 3 F. Sergiampietri
MEG – PMTct - Cryostat
PSI - February 3, 2003 4 F. Sergiampietri
MEG – PMTct - Cryostat
REFERENCE PMTHAMAMATSU R6041Q
PSI - February 3, 2003 5 F. Sergiampietri
MEG – PMTct - Cryostat
TRIGGER PMT HAMAMATSU R7400U-09
, SOURCE HOLDER
PSI - February 3, 2003 6 F. Sergiampietri
MEG – PMTct - Cryostat
FIXED SUPPORT FLANGE FOR REFERENCE PMT AND SOURCE
HOLDER
REFERENCE PMTHAMAMATSU R6041Q SOURCE AND TRIGGER PMT
HOLDER
PSI - February 3, 2003 7 F. Sergiampietri
MEG – PMTct - Cryostat
INSERT HEREGATE VALVES + LINEAR VERTICAL MOVEMENT(PHASE 2-3)
REMOVABLE SUPPORT FLANGE FOR PMT UNDER TEST
TEST PMTHAMAMATSU R6041Q
REFERENCE PMTHAMAMATSU R6041Q SOURCE AND TRIGGER PMT
HOLDER
PSI - February 3, 2003 8 F. Sergiampietri
MEG – PMTct - Cryostat
CRYOSTAT HEAD FLANGE
PSI - February 3, 2003 9 F. Sergiampietri
MEG – PMTct - Cryostat
INNER VESSEL (LIQUID Xenon)
PSI - February 3, 2003 10 F. Sergiampietri
MEG – PMTct - Cryostat
HEAT EXCHANGER COPPER BODY
PSI - February 3, 2003 11 F. Sergiampietri
MEG – PMTct - Cryostat
LN2 IN N2 OUT
LN2 HEAT EXCHANGER COIL
LXe TEMPERATURE CONTROLLED
HEATING RESISTORS
PSI - February 3, 2003 12 F. Sergiampietri
MEG – PMTct - Cryostat
VACUUM CHAMBER
PSI - February 3, 2003 13 F. Sergiampietri
MEG – PMTct - Cryostat
PSI - February 3, 2003 14 F. Sergiampietri
MEG – PMTct – Status of Phase 1 Cryostat
- FULL DESIGN AND MECHANICAL DRAWINGS COMPLETED
- CALL FOR TENDERS MADE AND JOB ASSIGNED TO THE COMPANY CINEL-Vigonza (PD), Italy
- CRYOSTAT DELIVERY EXPECTED BY THE END OF FEBRUARY
- ORDERS MADE FOR DRY UHV PUMPING GROUP, LEAK DETECTOR, UHV COMPONENTS, CRYOGENIC BOTTLE, PMT’s …
- LABORATORY PREPARATION UNDER WAY