Author: Nemesure, S.
Paper Title Page
MOPD01 RHIC p-Carbon Polarimeter Target Lifetime Issue 124
 
  • H. Huang, E.C. Aschenauer, G. Atoian, A. Bazilevsky, O. Eyser, A. Fernando, D.M. Gassner, D. Kalinkin, J. Kewisch, G.J. Mahler, Y. Makdisi, S. Nemesure, A. Poblaguev, W.B. Schmidke, D. Steski, T. Tsang, K. Yip, A. Zelenski
    BNL, Upton, Long Island, New York, USA
  • I.G. Alekseev, D. Svirida
    ITEP, Moscow, Russia
 
  Funding: Work performed under contract No. DE-AC02-98CH1-886 with the auspices of the DOE of United States
RHIC polarized proton operation requires fast and reliable proton polarimeter for polarization monitoring during stores. Polarimeters based on p-Carbon elastic scattering in the Coulomb Nuclear Interference(CNI) region has been used. Two polarimeters are installed in each of the two collider rings and they are capable to provide important polarization profile information. The polarimeter also provides valuable information for polarization loss on the energy ramp. As the intensity increases over years, the carbon target lifetime is getting shorter and target replacement during operation is necessary. Simulations and experiment tests have been done to address the target lifetime issue. This paper summarizes the recent operation and the target test results.
 
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