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Some cryostat scintillator slides for Monday’s meeting Michigan State University.

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Presentation on theme: "Some cryostat scintillator slides for Monday’s meeting Michigan State University."— Presentation transcript:

1 Some cryostat scintillator slides for Monday’s meeting Michigan State University

2 E3 C10 B11 E1 D5 A14 - A15 B14 D6 A D4 A12 A13 B12 - B B ITC Scintillators (cryostat (or crack) scintillators) (gap scintillators)

3 Crack Scintillator (E3, E4)

4 Mounting Proposal

5 View of 2 cryostat shells mounting bracket

6 Closeup

7 Bracket in final position

8

9 Special ITC brackets

10 Inner radius Counters held together by pins in one module fitting into slots in neighbor module

11 Cryostat scintillator status as of 2004 Optics, PMT’s, electronics and even mechanical shells were available Scintillator purchase was a victim of management contingency and the cryostat scintillators were on the upgrade path In the last few months, thanks to Marzio and Howard Gordon, the money is now available for construction and installation …but, construction has to be complete by the end of this FY Completed counters will be sent to CERN at the end of 2005  when does installation make sense? …and,to save money, we will use polystyrene scintillator provided by Dubna, rather than the PVT scintillator from Bicron; factor of 2 less light yield, i.e. more like 2-3 pe/mip calibration issues Same WLS fibers as for gap scintillators

12 MBTS counters Completion of cryostat counters made possible by tying this project in with MBTS counters

13 Scintillator Dubna has already produced the scintillator for all of the MBTS counters  awaiting some final decisions regarding clearances, then scintillator will be shipped to CERN->MSU  construction will also take place this summer, available for shipping this fall (September)  testing of prototype counter with ATLAS electronics currently taking place at the University of Chicago Dubna is currently producing cryostat scintillator  to arrive at MSU by May 1  construction will take place this summer, available for shipping this fall (September)  testing with ATLAS electronics to take place on a similar time-scale


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