Münster 2002 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 14: Poster Session: Instrumentation and Applications

HK 14.30: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

Study of the liquid hydrogen jet properties at the ANKE pellet target — •P. Fedorets¹, V. Balanutsa¹, W. Borgs², M. Büscher², A. Bukharov³, V. Chernetsky¹, V. Chernyshov¹, M. Chumakov¹, A. Gerasimov¹, V. Goryachev¹, L. Gusev¹, Z. Khorguashvili⁴, and S. Podchasky¹ — ¹ITEP, Moscow — ²Forschungszentrum Jülich — ³MPEI, Moscow — ⁴IPH GAS, Tbilisi

A pellet target will be utilized at the ANKE spectrometer to reach highest luminosities with a hydrogen pellet jet crossing the stored, circulating COSY beam. One of the main experimental tasks is to produce a stable liquid hydrogen jet, which will further be broken into micro-droplets of about 50 µ m diameter by acoustic excitation and finally freeze into pellets. Special care has to be taken about the jet-production boundary conditions. For this purpose jet modifications close to the triple-point (T=14 K, p=100 mbar) were studied, since only there stable jet can be generated. The status of the ANKE pellet target and the results of the hydrogen jet investigations will be presented.