From: Hill, JA (John) [J.A.Hill@rl.ac.uk]
Sent: 13 May 2008 11:57
To: Wolfgang Funk; Ken Bell; Dave Cockerill; Gerard Faber
Subject: RE: ee z-position

Attachments: EE_newenvelope.pdf

Wolfgang,
Find attached file, one that has now been well travelled for some years.
The rear face of the support ring (to shims) was set at z=3911.5, refer to Justin Greenhalgh project paper notes from an Integration meeting in February 2003.
http://www.eng-external.rl.ac.uk/cms-gen/Project_papers/EE332%20Visit%20
notes%20CERN%20feb%202003/

Since then a change request has been made (Feb 2008) to move the End Cap a further 5mm from interaction point pushing the support ring face (to
shims) to z=3916.5. Apologies but the drawing attached has not been updated with the new z dimensions but please add the 5mm where appropriate.

Regards
John


-----Original Message-----
From: Wolfgang Funk [mailto:wolfgang.funk@cern.ch]
Sent: 13 May 2008 10:21
To: Bell, Ken; Hill, JA (John); Dave Cockerill; Gerard Faber
Subject: ee z-position

Dear John,
Gerard asked me, what did you take as z-position at the beginning of the ringflange where it touches the shims?
Cheers, W.