A polarized hydrogen gas target for use in storage rings has been developed. One application may be the production of a stored polarized antiproton beam via spin dependent attenuation which would allow a study of the spin-dependence of antiproton-proton interactions. In order to increase the target thickness compared to jet targets the polarized hydrogen atoms are injected into a T-shaped storage cell. Polarization and density of the target have been measured in a test experiment by elastic scattering of an α-beam from the Heidelberg MP-tandem accelerator. The target polarization amounts to 83±8% of the maximum possible value. The target areal density of n = (2.6±0.1±0.2) × 1013H/cm2 is consistent with the density calculated from the measured H beam intensity.
|Number of pages||7|
|Journal||Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|
|State||Published - Oct 15 1992|
Bibliographical noteFunding Information:
We wish to thank Ch . Bi1scher, W. Brilckner, F . Neunreither, F . Rathmann, A . Steinmetz and W. Wan- der for their help during the course ofthese measure- ments . Thanks are due to the accelerator group, in particular E . Jaeschke and R . Repnow, for their skilful efforts and support . The present work was supported by the Bundesministerium fiir Forschung and Tech- nologie, Bonn, Germany under contract No . 06 MR 133 1, TPI and 06 ML 171/3 and by travel grant No. 880386 of the North Atlantic Treaty Organization. One of us (Z.M .) was supported by the Office for International Relations, Karlsruhe, Germany . One of us (W .H .) would like to thank the Alexander von Humboldt Stiftung for their support .
ASJC Scopus subject areas
- Nuclear and High Energy Physics