Details

Autor(en) / Beteiligte

• Wells, S.P.
• Wissink, S.W.
• Bacher, A.D.
• Bowyer, S.M.
• Chang, S.
• Lisantti, J.
• Liu, J.
• Olmer, C.
• Opper, A.K.
• Rinckel, T.
• Stephenson, E.J.

Titel

An in-beam polarimeter for intermediate energy protons using p + d elastic scattering

Ist Teil von

• Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 1993-02, Vol.325 (1), p.205-215

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

1993

Link zum Volltext

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• The importance of high quality spin-observable data in intermediate energy nuclear physics requires that techniques be developed for obtaining accurate and reliable measurements of incident beam polarizations in a nondestructive manner. For this purpose, we have constructed, installed, and calibrated two transmission-type polarimeters at IUCF, in which p+d elastic scattering is used to determine the two transverse polarization components of a high energy proton beam. In this report, we discuss some of our experimental design considerations, and provide technical details on the actual implementation schemes chosen. Representative spectra are shown, and typical performance capabilities are described. We have also completed a calibration of the effective analyzing power of the polarimeter ( A pol) as a function of the incident (beam) proton energy, and find A pol ≈ 0.51 over the entire proton energy range studied in this work ( ∼ 150–200 MeV) when θ d lab = 42.6°.