The Moscow-Juelich Frozen-Pellet Target

Journal Article · Sat Feb 11 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2176552· OSTI ID:20798143

Buescher, M; Fedorets, P ^[1]; Chernetsky, V; Chernyshev, V ^[2]; Bukharov, A; Semenov, A ^[3]

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1. Institut fuer Kernphysik, Forschungszentrum Juelich (FZJ), D-52425 Juelich (Germany)
2. Institute for Theoretical and Experimental Physics (ITEP), Cheremushkinskaya 25, 117259 Moscow (Russian Federation)
3. Moscow Power and Engineering Institute (MPEI), Ul. Krasno-Kazarmennaja 13, 117218 Moscow (Russian Federation)

Frozen-pellet targets promise to be ideally suited for high luminosity storage-ring experiments with a 4{pi}-detector geometry. Such a target has been set up at the FZJ by a group from ITEP and MPEI. It comprises a vibration-free cooling system based on liquid nitrogen and helium and, thus, allows one to use various liquefiable gases like H2, D2, N2, Ne, Ar, Kr and Xe as target material.During several test runs, stable production of pellets with diameters down to {approx}20 {mu}m has been achieved. Their spatial distributions and angular spreads have been determined with the help of fast CCD cameras and the pellet size and frequency stabilities have been measured.

• OSTI ID: 20798143
• Journal Information: AIP Conference Proceedings, Vol. 814, Issue 1; Conference: 11. international conference on hadron spectroscopy, Rio de Janeiro (Brazil), 21-26 Aug 2005; Other Information: DOI: 10.1063/1.2176552; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
43 PARTICLE ACCELERATORS
CHARGE-COUPLED DEVICES
COOLING SYSTEMS
FOUR-PI DETECTORS
SPATIAL DISTRIBUTION
TARGETS