Minutes of the Geneva AMS group meeting on August 29, 2000


Geneva AMS group meetings

Mechanics

Eric couldn,t attend the meeting so here is his report about AMS01 dismantling:

Date: Mon, 28 Aug 2000 20:07:28 +0200
From: Eric Perrin
To: Divic.Rapin@physics.unige.ch
Cc: Florian MASCIOCCHI ,
Philippe BOUVIER
Subject: Re: Reunion mardi 29 aout 10.oo

Divic,
Je ne pourrai pas etre present mardi matin.
Concernant le demontage la situation est la suivante:

Plans 1 et 6 sont dans les conteneurs a l'annexe.
Le demontage du tracker commence mardi matin a 8h30au bat 164 avec les gens
de Zurich et Aachen. Philippe Bouvier et moi (en pointille) participeront
au demontage.

Le programme est environ:
Mardi enlever le tracker de l'aimant
Mercredi demonter le tracker et mettre les plans en conteneur.

Svp nous indiquer les echelles destinees au test beam afin d'organiser leur
demontage des plans.

Meilleures salutations Eric

Concerning the ladders to be placed at the test beam Davide conseil the following list if possible:
plan 6L15 ZO 031 TR5.L9.n
plan 1L15 ZO 022 TR1.L10.n
 L15 ZO 019 TR1.L9.n
 L15 ZO 020 TR1.L8.n

Bill Burger is interested in doing the metrology for internal planes. For this he will spend around 10 days (100%) on the clean room. The schedule for the use of the clean room for next two months has also been discussude and is sketched on the following table.

Date Activity
1-15 Sep Plane dismantling+metrology
15-30 SepMajor work on clean room. No acces
1-15 Oct No SAS AMS area. Only test possible
Nov Salle Gris and SAS area ok. Ready for production

Electronics:

Radiation test performed last week. It was confirmed the problems with AD8054 op-amp so S-hybrid will be modified to replace 1 AD8054 with 2 AD8052. At the same time an HCC was irradiated showing a current increase about 30 times. In investigation. Here there are no backup solution, so a full radiation test with several pieces will be done asap.

Test beam

Ladder for test beam now in ETH workshop. Probably ready in a couple of days. In the setup there are only a few problems with the telescope. Aachen experts could not be contacted before next monday. Readout is almost optimized and CAMAC+TDR test board data can be mixed with no problems. Tomorrow there will be acces to the test area to mount at least the telescope. At 15:00 h there will be a "touristic visit" followed by some work to mount everything.

Future Meetings:

E. Cortina, Aug 29, 2000