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Status of the TOFs. Inti Lehmann University of Glasgow 27 June 2011. Work done in May. All scintillators detached re - aligned secured with new brackets Short flasher fibres attached M odules moved to Doris F raming done S ubframes moved into main frame - PowerPoint PPT Presentation
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Inti LehmannUniversity of Glasgow
27 June 2011
Status of the TOFs
OLYMPUS TOF Status 27/06/2011 2
Work done in May• All scintillators
detached re-aligned secured with new brackets
• Short flasher fibres attached• Modules moved to Doris• Framing done• Subframes moved into main
frame• All!? 34 TOF modules
installed
Inti Lehmann
Inti Lehmann OLYMPUS TOF Status 27/06/2011 3
May 2011
OLYMPUS TOF Status 27/06/2011 4
Misalignment realised• Observed effect
Chambers > TOF 17 Gap from target
• Huge mismatch: 10-25cm TOF CAD On-site (Michael)
• Explanation Unsynchronised changes in CAD
• Solution Move group 3 (modifying brackets, add.
support) Add TOFs #18 (add. cables, short by 1 in
flasher) Inti Lehmann
OLYMPUS TOF Status 27/06/2011 5
Not beautiful but...
Inti Lehmann
OLYMPUS TOF Status 27/06/2011 6
Status and to-do• 34 TOFs in place
2 TOFs in preparation Hardware to extend frames expected on Thu
• 72 HV cables and 70 signal cables labelled Require ordering more signal cables Route cables to hut
• 72 mu-metal shields ready Mounting on top may prove difficult
• 7 (possibly) loose PMTs Re-attachment started
• Flasher work Light-coupler, electronics, route
• TestsInti Lehmann
OLYMPUS TOF Status 27/06/2011 7Inti Lehmann
OLYMPUS TOF Status 27/06/2011 8
• Mismatch
Inti Lehmann