Performance of HPGe detectors in high magnetic fields

0307556 - ÚJF 2008 RIV NL eng J - Článek v odborném periodiku
Lorente, A.S. - Achenbach, P. - Agnello, M. - Majling, Lubomír
Performance of HPGe detectors in high magnetic fields.
[Činnost HPGe detektorů v silných magnetických polích.]
Nuclear Instruments & Methods in Physics Research Section A. Roč. 573, č. 3 (2007), s. 410-417. ISSN 0168-9002. E-ISSN 1872-9576
Grant CEP: GA ČR GA202/05/2142
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: hypernuclear gamma-spectroscopy * HPGe detectors
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 1.114, rok: 2007

A new generation of high-resolution hypernuclear gamma-spectroscopy experiments with high-purity germanium detectors (HPGe) are presently designed at the FINUDA spectrometer at DA Phi NE, the Frascati phi-factory, and at (P) over bar ANDA, the (p) over barp hadron spectrometer at the future FAIR facility. Both, the FINUDA and (P) over bar ANDA spectrometers are built around the target region covering a large solid angle. To maximise the detection efficiency the HPGe detectors have to be located near the target, and therefore they have to be operated in strong magnetic fields (B approximate to I T). The performance of HPGe detectors in such an environment has not been well investigated so far. In the present work VEGA and EUROBALL Cluster HPGe detectors were tested in the field provided by the ALADiN magnet at GSI. No significant degradation of the energy resolution was found, and a change in the rise time distribution of the pulses from preamplifiers was observed.

Je navržena nová genevace hyperjaderné spektrografie gama na spektrometru FINUDA a zařízení DA Phi NE ve Francii.
Trvalý link: http://hdl.handle.net/11104/0160282