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z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=8876&th=2457#msg_8876
what is the z-range we could use for the Lumi detector ??
Cheers,
Miriam]]>Miriam Fritsch2009-06-17T13:36:00-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=8894&th=2457#msg_8894
I recall now, why I didn't choose the forum as means of communication for the magnets. One cannot do anything offline and this beast even forgets my password....
Cheers,
Inti]]>Inti Lehmann2009-06-22T15:00:21-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9043&th=2457#msg_9043
I cannot access this file. http://www-panda.gsi.de/html/det/int/panda_v0.1.15.pdf
I have already GSI forum ID and GSI account, but authentication is failed with these account.
Do I need some additional registration?
Thank you!
]]>donghee2009-07-23T10:11:56-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9044&th=2457#msg_9044
Just ask somebody in your group (I do not think writing it in the forum would be wise).]]>StefanoSpataro2009-07-23T10:23:38-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9045&th=2457#msg_9045
I have seen there is no indication and designing of Lumi.
This is only a general panda drawing and nothing else for Lumi.
Where is the location for Lumi-monitor, correctly in pandaroot?
or where can I find the Lumi geometry in pandaroot?
/pandaroot/Lumi ?
Thank you!
]]>donghee2009-07-23T10:41:21-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9046&th=2457#msg_9046
Just ask him (maybe he does not read the forum continuosly).]]>StefanoSpataro2009-07-23T10:57:33-00:00Accessibility
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9066&th=2457#msg_9066
Let me play devil's advocate
The format, delivery and access to those mailing lists is so poor, that you should send any urgent questions to me directly: i.lehmann@physics.gla.ac.uk
Cheers,
Inti
PS: If someone would manage to remove the "New reply to" from the subject line it may already help a bit...
]]>Inti Lehmann2009-07-24T10:05:07-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9076&th=2457#msg_9076
after bringing together the actual numbers of the detectors in the forward spectrometer: The z-range of the Lumi detector is 10500mm to 12500mm.
At 10500mm the outer diameter of the beampipe is 110mm, same as at the z position of 12500mm.
So the parts to change the beampipe diameter for the Lumi detector are included in the 2m (z=10500mm - 12500mm).
Best Regards,
Bernd
]]>Bernd Lewandowski2009-07-28T12:23:23-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9077&th=2457#msg_9077
How about the beampipe thickness in this 2 meters lumi monitor region?
Thanks
]]>Tsitohaina Randriamalala2009-07-28T12:49:00-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9078&th=2457#msg_9078
thank you for the numbers !! Why the number of 110 mm diameter was chosen ?? Is there a reason ??
Cheers,
Miriam
]]>Miriam Fritsch2009-07-28T12:54:26-00:00Re: z-Position of the Lumi Monitor
https://forum.gsi.de/index.phpindex.php?t=rview&goto=9100&th=2457#msg_9100
Bernd will be back Thursday next week. Concerning the
beam pipe: The wall thickness usually is 2% of the diameter,
at least for something like Al.
The size of the beam pipe is as given by HESR at the moment.
This comes from a time before any lumi monitor. Here input
is actually needed from you. Best coordinate closely with the
HESR people. Clearly the numbers are not fixed yet for the
part downstream of the target spectrometer.
Within the 2m space for the lumi monitor any adjustment of
beam pipe diameters has to take place. This holds especially
for the outgoing direction. For the upstream side of course
physics plays a role: All elastically scattered pbar you want to
measure with the lumi monitor should be contained in the
pipe. Maybe the best strategy is to open up early on, e.g. soon
after the MVD to the required diameter and then have a rather
big pipe all the way to the lumi monitor.