status of the tofs

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