Re: Current Events Discussion
Posted: Tue Mar 30, 2010 6:01 pm
I liked the quote from one of the boffins when he said 'we may even discover some unknown unknowns' 
Page 3 of 35
Re: Current Events Discussion
Posted: Thu Apr 01, 2010 1:20 am
New Record! Beam for over 8 hours and at 3.5TeV too!
Re: Current Events Discussion
Posted: Thu Apr 01, 2010 2:22 am
The beams are still going, and with good lifetimes, too!
And LHCb just had a bizarre event: http://lblogbook.cern.ch/Shift/100401_0 ... 4210_0.jpg
And LHCb just had a bizarre event: http://lblogbook.cern.ch/Shift/100401_0 ... 4210_0.jpg
Re: Current Events Discussion
Posted: Thu Apr 01, 2010 3:18 am
Whoops, beams gone. Hope there were some interesting collisions.
Re: Current Events Discussion
Posted: Thu Apr 01, 2010 4:58 am
I read around 10 hours, looks like a new record to me 
Re: Current Events Discussion
Posted: Fri Apr 02, 2010 2:11 pm
Seems like Cryo is rather borked again today. Page 1 says they intend to sort it out by 2000.
So whilst we wait, seems we'll be attempting to break Igor...
So whilst we wait, seems we'll be attempting to break Igor...
Re: Current Events Discussion
Posted: Fri Apr 02, 2010 2:18 pm
hahahaDanny252 wrote:Seems like Cryo is rather borked again today. Page 1 says they intend to sort it out by 2000.
So whilst we wait, seems we'll be attempting to break Igor...
Re: Current Events Discussion
Posted: Fri Apr 02, 2010 2:55 pm
2200 now!Danny252 wrote:by 2000.
Re: Current Events Discussion
Posted: Fri Apr 02, 2010 3:24 pm
No wonder, looks like parts of the machine had time to warm up a lot. Still too many red squares on cryo page.
Re: Current Events Discussion
Posted: Sat Apr 03, 2010 9:20 am
Today's morning dump was scary.
Re: Current Events Discussion
Posted: Sat Apr 03, 2010 11:31 am
Kasuha wrote:Today's morning dump was scary.
how so mate?
Yesterdays Atlas fireworks were mad tho, nothing.... nothing.... BOOOOOOOOOOOOOOOOOOM tracks everywhere so much you couldn't make any sense lol
Re: Current Events Discussion
Posted: Sat Apr 03, 2010 5:28 pm
I was looking at page1 shortly after the beam was dumped and they put on beam tracking screens showing one beam mark in the center and one way off (by centimeters, not millimeters). Should this happen with full intensity beam I'd be afraid about beam pipes getting perforated by it.
COLL-MOT-b2?
Posted: Sat Apr 03, 2010 8:19 pm
Now it is already the second time I see a dump during setting up for phzsics with the reason "COLL-MOT-..." while moving in the collimators.
What is that?
What is that?
Re: Current Events Discussion
Posted: Sat Apr 03, 2010 8:50 pm
Not sure if this will fully answer your question but from the "CERN BE - OP eLogbook"
Unprogrammed dump. When completing collimator sequence. TCT and TCLs were out of tollerance.
I have been (very slowly) putting together a spread-sheet of all the acronyms used on the various screens; I have the following defs ...
TCT - Target Collimator Tertiary: Tertiary Collimator
TCL - Target Collimator Long
Unprogrammed dump. When completing collimator sequence. TCT and TCLs were out of tollerance.
I have been (very slowly) putting together a spread-sheet of all the acronyms used on the various screens; I have the following defs ...
TCT - Target Collimator Tertiary: Tertiary Collimator
TCL - Target Collimator Long
Re: Current Events Discussion
Posted: Sun Apr 04, 2010 3:17 pm
A nice little animation of "collapsing separation bumps" that is part of the beam physics process:
Enjoy:
http://cms.web.cern.ch/cms/News/e-comme ... ie2CMS.gif
Enjoy:
http://cms.web.cern.ch/cms/News/e-comme ... ie2CMS.gif
