Does anybody know what ATS means (they are doing "ATS MD" right now)?
Kind regards
Search found 10 matches
- Sat May 07, 2011 9:49 am
- Forum: The Accelerator
- Topic: 2011 Events Discussion
- Replies: 184
- Views: 259015
- Mon May 02, 2011 5:59 pm
- Forum: The Accelerator
- Topic: 2011 Events Discussion
- Replies: 184
- Views: 259015
Re: 2011 Events Discussion
Does anybody know what the "unsqueeze"-tests are good for?
Currently, b* is about 90m in CMS... (but with no beam in the machine)
Currently, b* is about 90m in CMS... (but with no beam in the machine)
- Sat Feb 26, 2011 2:30 pm
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 612556
Re: Current Events Discussion
What is this data used for (measuring some beam parameters)?
- Sat Feb 26, 2011 2:20 pm
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 612556
Re: Current Events Discussion
In last year's run they stopped at beta* = 3,5m. In 2009 (with lower intensity and energy) they squeezed to 2m. Beams (with even more bunches as last year) squeezed to beta* = 1,5m should give us a considerabely higher luminosity. On Friday on 23:33 they wrote that they scrape the beam with the prim...
- Mon Aug 30, 2010 6:34 pm
- Forum: Portal link and forum suggestions
- Topic: Translating lhc-facts.ch
- Replies: 7
- Views: 14077
Re: Translating lhc-facts.ch
German is my mother tongue, but my english is not as good as it should be. Nevertheless I would like to help to translate the page as it probably improves my skills... A kind of list that says which part of the site gets translated by whom would be helpful for anyone planning to attach to the projec...
- Tue Aug 17, 2010 9:36 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 612556
Re: Current Events Discussion
Hi,
as they are planning to test "bunch train operation (1 train of 4 bunches, each separated by 150 ns)", i think they are just going to put the bunches in buckets separated by 150ns (i.e. moving the bunches closer together).
Please correct me, if I should be wrong!
Best regards
as they are planning to test "bunch train operation (1 train of 4 bunches, each separated by 150 ns)", i think they are just going to put the bunches in buckets separated by 150ns (i.e. moving the bunches closer together).
Please correct me, if I should be wrong!
Best regards
- Thu Jul 15, 2010 3:30 pm
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 612556
Re: Current Events Discussion
They are currently hunting the Hump by switching off the "GSM" in the tunnel.
I wonder if this is the same GSM that we use for wireless communication?
ikarus177
I wonder if this is the same GSM that we use for wireless communication?
ikarus177
- Thu Jul 15, 2010 3:26 pm
- Forum: The Accelerator
- Topic: Target beam separation / reduced luminosity in ALICE
- Replies: 4
- Views: 8431
Re: Target beam separation / reduced luminosity in ALICE
Hi, I recently mailed a friend at CERN about this question. He said that ALICE is mostly interested in the "original" pp-collisions, i.e. how many secondary particles are produced by a single event. If you take two nominal colliding bunches, you will typically see 1.5 collisions per bunchcrossing. S...
- Tue Jul 06, 2010 1:39 pm
- Forum: The Accelerator
- Topic: Target beam separation / reduced luminosity in ALICE
- Replies: 4
- Views: 8431
Target beam separation / reduced luminosity in ALICE
Hi, does anybody know the reason for why the separation bump in IP2 is not collapsed completely (the CONFIG-Vistar shows a target separation of about -0.133 mm (if I remember correctly))? This (of course) reduces the delivered luminosity to ALICE drastically. I read that is was planned to reduce the...
- Sun Jul 04, 2010 2:18 pm
- Forum: New Users Start Here
- Topic: hi everybody!
- Replies: 3
- Views: 7477
hi everybody!
Hi, I just opened an account in this wunderful forum. I've to apologize for my bad english, but nevertheless I hope that we'll have many interesting discussions. As long as I can remember, i was interested in science and electronics. A friend of mine is working at CERN for almost 15 years, and so I ...