SUMMARY OF THE RHIC PERFORMANCE DURING THE FY07 HEAVY ION RUN

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After the last successful RHIC Au-Au run in 2004 (Run-4), RHIC experiments now require significantly enhanced luminosity to study very rare events in heavy ion collisions. RHIC has demonstrated its capability to operate routinely above its design average luminosity per store of 2x10{sup 25}cm{sup -2}s{sup -1}. In Run-4 we already achieved 2.5 times the design luminosity in RHIC. This luminosity was achieved with only 40% of the total possible number of bunches filled, and with $'* = 1 m. However, the goal is to reach 4 times the design luminosity, an average of 8x 1 by reducing the P* value ... continued below

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DREES,A.; AHRENS, L.; ALESSI, J.; BAI, M.; BARTON, D. & AL., ET June 25, 2007.

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  • Main Title: SUMMARY OF THE RHIC PERFORMANCE DURING THE FY07 HEAVY ION RUN
  • Series Title: Fiscal Year 2007

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After the last successful RHIC Au-Au run in 2004 (Run-4), RHIC experiments now require significantly enhanced luminosity to study very rare events in heavy ion collisions. RHIC has demonstrated its capability to operate routinely above its design average luminosity per store of 2x10{sup 25}cm{sup -2}s{sup -1}. In Run-4 we already achieved 2.5 times the design luminosity in RHIC. This luminosity was achieved with only 40% of the total possible number of bunches filled, and with $'* = 1 m. However, the goal is to reach 4 times the design luminosity, an average of 8x 1 by reducing the P* value and increasing the number of bunches to the accelerator maximum of Figure 1 : Integrated delivered luminosity for the four IRs with 11 1. In addition, the average time at store was expected to the minimum and maximum predictions up to June 18,2007. be increased by a factor of 1.1 to about 60% of calendar time. We present an overview of the changes that increased the instantaneous luminosity, luminosity lifetime and integrated luminosity of RHIC Au-Au operations during Run-7 even though the goal of 60% time at store could not be reached.

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  • 22ND PARTICLE ACCELERATOR CONFERENCE; ALBUQUERQUE, NEW MEXICO; 20070625 through 20070629

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  • Report No.: BNL--77522-2007-CP
  • Grant Number: DE-AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 910400
  • Archival Resource Key: ark:/67531/metadc879802

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Office of Scientific & Technical Information Technical Reports

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  • June 25, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 1, 2016, 5:41 p.m.

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DREES,A.; AHRENS, L.; ALESSI, J.; BAI, M.; BARTON, D. & AL., ET. SUMMARY OF THE RHIC PERFORMANCE DURING THE FY07 HEAVY ION RUN, article, June 25, 2007; United States. (digital.library.unt.edu/ark:/67531/metadc879802/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.