Beams Document 2618-v1

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First Results from MI8 Collimator Use

Document #:
Beams-doc-2618-v1
Document type:
Note
Submitted by:
Bruce C. Brown
Updated by:
Bruce C. Brown
Document Created:
18 Jan 2007, 17:06
Contents Revised:
22 Jan 2007, 18:45
Metadata Revised:
22 Apr 2008, 11:08
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Abstract:
On January 11, 2007 a study was done to examine the effect of the MI8 Collimator system on Main Injector operation. New collimator scans were used to establish the location where 1% of the Booster beam was scraped using only one collimator edge. Then the position was set to scrape with two edges (one horizontal and one vertical) on each of the four MI8 Collimators where the position was chosen at the point where 1/2% loss was observed when only one edge was used. The combination scraped about 3.5% of the beam. A vertical aperture scan at VP301 before, with collimators in place, and after their removal documented the improved vertical size of the beam. Measurements of the losses around the Main Injector using the Loss Monitor Program demonstrated reduced losses as well. Based on these new collimator scans, a proposal for initial operation will be formulated.
Files in Document:
  • html (Beams-doc-2618.html, 101.0 kB)
Other Files:
  • Logo (fermi_logo_1.gif, 210 bytes)
  • gif (AptrScan301V_after.pl, 17.3 kB)
  • gif (AptrScan301V_before.pl, 14.2 kB)
  • gif (AptrScan301V_during.pl, 15.2 kB)
  • gif (C836AH_LossScangif.gif, 15.5 kB)
  • gif (C838BV_LossScangif.gif, 18.6 kB)
  • gif (LossMonwScraping20060118.pl, 18.9 kB)
  • gif (loss1.gif, 20.6 kB)
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