A large solid angle ionization chamber with ring counter geometry

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Abstract

For an experiment to determine the spectroscopic quadrupole moment of 7Li an ionization chamber with a solid angle of 1.8 sr was developed. The detector has rotational symmetry with respect to the beam axis and covers the angular range 129° < θlab < 172°, which is divided into five sections. The electric field is directed parallel to the trajectories of the detected particles. For counting rates of about 20 kHz an energy resolution of 3% was obtained for 12.2 MeV 7Li-ions.

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Cited by (1)

Supported partly by the Bundesministerium für Forschung und Technologie, Bonn.

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Present address: Max-Planck-Institut für Kernphysik, Heidelberg, Germany.

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Present address: Institut für Physik der Universität Basel, Basel, Switzerland.

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