Proton polarimeter calibration between 82 and 217 MeV

J. Glister*, G. Ron, B. Lee, A. Beck, E. Brash, A. Camsonne, S. Choi, J. Dumas, R. Feuerbach, R. Gilman, D. W. Higinbotham, X. Jiang, M. K. Jones, S. May-Tal Beck, E. McCullough, M. Paolone, E. Piasetzky, J. Roche, Y. Rousseau, A. J. SartyB. Sawatzky, S. Strauch

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The proton analyzing power in carbon has been measured for energies of 82-217 MeV and proton scattering angles of 5-41{ring operator}. The measurements were carried out using polarized protons from the elastic scattering 1H (over(e, ⇒), over(p, ⇒)) reaction and the Focal Plane Polarimeter (FPP) in Hall A of Jefferson Lab. A new parameterization of the FPP p-C analyzing power was fit to the data, which is in good agreement with previous parameterizations and provides an extension to lower energies and larger angles. The main conclusions are that all polarimeters to date give consistent measurements of the carbon analyzing power, independently of the details of their construction and that measuring on a larger angular range significantly improves the polarimeter figure of merit at low energies.

Original languageAmerican English
Pages (from-to)578-584
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number3
StatePublished - 21 Jul 2009
Externally publishedYes

Bibliographical note

Funding Information:
We thank the Jefferson Lab Physics and Accelerator Divisions for their contributions. This work was supported by the U.S. Department of Energy, the U.S. National Science Foundation, Argonne National Laboratory under Contract DE-AC02-06CH11357, the Israel Science Foundation, the Korea Science Foundation, the US-Israeli Bi-National Scientific Foundation, the Natural Sciences and Engineering Research Council of Canada, the Killam Trusts Fund and the Walter C. Sumner Foundation. Jefferson Science Associates operates the Thomas Jefferson National Accelerator Facility under DOE Contract DE-AC05-06OR23177. The polarimeter was funded by the U.S. National Science Foundation, Grants PHY 9213864 and PHY 9213869.


  • Analyzing power
  • Polarimeter
  • Polarization


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