Spin-Dependent Scattering Of Polarized Protons From A Polarized He-3 Internal Gas-Target
- BLOCH, C.
- DOSKOW, J.
- GOODMAN, C.D.
- JACOBS, W.W.
- LEUSCHNER, M.
- MEYER, H.O.
- VONPRZEWOSKI, B.
- RINCKEL, T.
- SAVOPULOS, G.
- SMITH, A.
- SOWINSKI, J.
- SPERISEN, F.
- PITTS, W.K.
- DESCHEPPER, D.
- ENT, R.
- HANSEN, J.O.
- KELSEY, J.
- KORSCH, W.
- KRAMER, L.H.
- LEE, K.
- MAKINS, N.C.R.
- MILNER, R.G.
- PATE, S.F.
- TSCHALAR, C.
- WELCH, T.P.
- MARCHLENSKI, D.
- SUGARBAKER, E.
- LORENZON, W.
- PANCELLA, P.V.
- van den Brand, J.F.J.
- BULTEN, H.J.
- JONES, C.E.
- MILLER, M.A.
- NEAL, J.
- UNAL, O.
- ZHOU, Z.L.
DOIAbstract
We describe the first experiment to use a polarized internal gas target and polarized beam in a storage ring. A laser optically pumped polarized He internal gas target has been used with circulating beams of 197-414 MeV polarized protons to carry out an extensive set of measurements of spin dependent scattering. A large acceptance non-magnetic detector system consisting of wie-chambers, scintillators and microstrip detectors was used to detect protons, neutrons, deuterons, and He-3 nuclei from the beam-target interaction. It is demonstrated that these techniques result in low backgrounds (< 1%) due to scattering from species other than the polarized target gas and allow detection of low energy recoiling nuclei. Specific issues such as in...
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