Freiburg 1999 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 36: Postersitzung / Instrumentation und Anwendungen I
HK 36.17: Poster
Wednesday, March 24, 1999, 10:15–12:00, Foyer
Intensity measurements at the ANKE ABS* — •M. Nekipelov1, R. Baldauf2, H. Kleines2, N. Koch3, V. Koptev4, A. Kovalev4, S. Lorenz3, M. Mikirtytchiants1, V. Nelyubin4, H. Paetz gen. Schieck5, F. Rathmann3,6, J. Sarkadi2, H. Seyfarth6, E. Steffens3, A. Vassiliev4, and K. Zwoll2 — 1Diploma student from St. Petersburg State Technical University, St. Petersburg, Russia. — 2Zentrallabor f"ur Elektronik, FZ J"ulich, D-52425 J"ulich — 3Physikalisches Institut II der Universit"at Erlangen-N"urnberg, D-91058 Erlangen — 4Petersburg Nuclear Physics Institute , 188350 Gatchina, Russia — 5Institut f"ur Kernphysik, Universit"at zu K"oln, D-50937 K"oln — 6Institut f"ur Kernphysik,FZ J"ulich, D-52425 J"ulich
The atomic beam source (ABS) is under construction for experiments at the spectrometer ANKE at the COSY storage ring. The ABS will inject polarized H or D atoms into the target storage cell. The achievable gas-target thickness depends on the intensity inj ected into the feeding tube of the cell. This intensity has to be maximized and its absolute value has to be determined. Maximization is provided by ABS parameters like nozzle temperature, skimmer-nozzle geometry, position of the magnets. The first dissociated beam and sextupole magnets will be available from beginning of 1999. The compression tube technique allows to precisely calibrate the atomic beam intensity. Axial movement of the compression tube is used to find the focus of the magnets while by la teral movement the beam profile is scanned. The compression tube will be used also to check the operation of the rf-transition unit. First results will be presented.
* supported by DFG under grant no. 436 RUS 113/430, BMBF under grant no. RUS-649-96 and the Russian Ministery of Science.