Absolute Calibration of the In-beam Proton Polarimeter at IUCF

摘要

This contribution covers the absolute calibration to better than 1% of the in-beam proton polarimeters at IUCF. The polarimeters observe p+d elastic scattering from thin CD_2 targets at θ_(lab)(d)=42.6°. The calibration standard was double scattering using a ~(12)C first target and the focal plane polarimeter of the K600 magnetic spectrometer. This procedure gave the beam polarization and the analyzing powers from both targets. Systematic errors are discussed.