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HK: Hadronen und Kerne

HK 3: Instrumentation I, Ion Sources, Targets

HK 3.2: Vortrag

Montag, 16. März 1998, 14:30–14:45, A

A polarized active target for measurements of πp analyzing powers at low energies — •H. Denz¹, R. Bilger¹, H. Clement¹, J. Gräter¹, R. Meier¹, J. Pätzold¹, G.J. Wagner¹, B. van den Brandt², P. Hautle², J.A. Konter², S. Mango², M. Pavan³, G.R. Smith⁴, G.J. Hofman⁵, and K. Föhl⁶ — ¹Physikalisches Institut, Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany* — ²Paul Scherrer Institute, CH-5323 Villigen PSI, Switzerland — ³Laboratory for Nuclear Science, MIT, Boston MA, USA — ⁴TRIUMF, 4004 Wesbrook Mall, Vancouver B.C. V6t 2A3, Canada — ⁵University of Colorado, Boulder, CO 80309, USA — ⁶Department of Physics and Astronomy, University of Edinborough, UK

Measurements of πp analyzing powers at low energies and forward angles are planned at PSI. The newly developed PSI polarized scintillator target [1] will be used as a means of background suppression. Due to the constrained geometry of the light guide system in the cryogenic target the light collection efficiency is low, and only a well-designed system will provide the desired resolution. We will report on simulations and test measurements for optimization of the target light output.

[1] B. van den Brandt et al., Proc. SPIN96 Symposium, Sept. 10-14, 1996, Amsterdam, Ed. C.W. de Jager, World Scientific, Singapore, 1997 *supported by BMBF (06 TU 886) and DFG (Mu 705/3)