Minutes WP meeting #88, 29 July 2009
---------------------------------------------------------

Present:
At DESY: Klaus Dehmelt, Oliver Schaefer, Tessa Charles (summer student), Christoff Rosemann, 
Ralf Diener, Patrick Conley, Jan Timmermans
Via EVO: Madhu Dixit, Leif Jonsson, Ron Settles, Dean Karlen, Dan Peterson, Gilles De 
Lentdecker

Apologies: Sasha Kaukher, Takeshi Matsuda

Anybody forgotten?

1) General News: 
- A 1st draft of the agenda of the LCTPC collaboration meeting on 21-22 September at DESY is now 
available on the following Indico page:
http://ilcagenda.linearcollider.org/conferenceDisplay.py?confId=3742
Details of the agenda are still “under construction”. Jan will contact people to serve as reviewer 
and/or session convenor or discussion leader. Group(/task) leaders are asked to send 
Jan+Takeshi (provisional) names of presenters for the topics indicated in the agenda.
Comments to the agenda proposal, especially important missing items are most welcome.

2) PCMAG news and LPTPC status (Klaus Dehmelt):
- Lund group finished their data taking last Sunday and moved out their Altro electronics
- LPTPC was disconnected and taken out of PCMAG, but left in the testbeam area
- PCMAG was lifted from its current fixed support, but also left in the area; slowly warming up
- preparations have started to mount the movable support structure

3) Status Lund test with one JGEM + Altro electronics (Leif Jonsson):
- the test beam campaign was very successful; many data runs were taken with a variety of 
operating parameters of electronics, HV and with and without B-field. 
- No trips of the HV (both fieldcage and GEMs) were observed
- Analysis of these data will take some time

5)  No representatives from the Japanese, Bonn and Saclay groups were present, therefore no 
news from their recent data taking campaigns. 
Madhu Dixit confirmed that he and Yun-Ha Shin will participate in the end-of-August test with a 
Micromegas module and using the laser calibration beams.

6) News from Victoria laser system (Patrick Conley): 
- Took laser data with the Lund setup.
- the new, longer fibers work fine; there are more than enough electrons produced from the 
patterned cathode
- data were taken with different laser intensities, without and with B-field and at two different 
settings of the drift field
- Patrick then presented slides with further details that he prepared for a talk earlier that week for 
the weekly FLC group meeting; these slides are attached to the indico agenda 
- analysis code is still being worked on

7)  Update on test beam schedule (Klaus Dehmelt):
- the updated schedule is attached to the agenda web page:
The Bonn group is newly scheduled for a week of data taking (31st Aug – 6th Sep.) with their own 
GEM module and pad readout using Altro electronics. This is likely the last week this year that 
PCMAG is still cold.


Next meeting in two weeks: Wednesday 12th August, 16:00 CET


Jan Timmermans