Search found 6 matches

by dh2va
Wed Feb 03, 2010 8:50 pm
Forum: The Accelerator
Topic: 2010 Startup
Replies: 89
Views: 11796

News from Steve Myers (LHC machine)

This was in the mail today... interesting read! ------------------------ Better in the long run Last week, the Chamonix workshop once again proved its worth as a place where all the stakeholders in the LHC can come together, take difficult decisions and reach a consensus on important issues for the ...
by dh2va
Mon Dec 14, 2009 8:10 pm
Forum: The Accelerator
Topic: OLDER 2/15/10 ** current events and discussion **
Replies: 54
Views: 14220

Re: ** current events and discussion **

Keep in mind, that in full operations later, ONE bunch will have 1E11 p...

... and SPS will fill 72 bunches in one go!

I like the meticulous approach.. one small step at a time. Good job CCC!
by dh2va
Fri Dec 11, 2009 7:55 am
Forum: LHCb
Topic: a couple of questions
Replies: 6
Views: 4147

Re: a couple of questions

I am no beam physicist, but afaik you can in first order assume a circular reference orbit. (LHC is no circle but more an octagon.. long straight sections LSS and dipole arcs ARC) Ok, assume now a protons runs on this reference orbit. It gets disturbed by some external force (kick it!). The guide sy...
by dh2va
Fri Dec 11, 2009 7:45 am
Forum: LHCb
Topic: Event Display
Replies: 12
Views: 8359

Re: Event Display

Following the RICH1 Detector is the TT or Trigger Tracker. This is the mechanism that lets CERN know that this is a collision worth knowing about. 'Tracker Turicensis' .. used to be Trigger Tracker when it was supposed to be used for triggering. Here is a picture of the partially opened TT (fully a...
by dh2va
Wed Dec 09, 2009 8:15 am
Forum: The Accelerator
Topic: What is a "Piquet"
Replies: 7
Views: 3200

Re: What is a "Piquet"

This should clarify it:

LHCb Organisation of Piquet and Shifts: https://edms.cern.ch/file/924718/1/shift.pdf
by dh2va
Wed Dec 09, 2009 6:42 am
Forum: The Accelerator
Topic: What is a "Piquet"
Replies: 7
Views: 3200

Re: What is a "Piquet"

Hi jmayes and Xymox, can only speak for LHCb as I am part of it.. Shift team: in control room, min 2 persons Subdetector Piquet: specialist for a given subdetector, has to be able to be on-site within 30 minutes after request Subdetector Expert: reachable 24/7 via phone, can be anywhere Great websit...