Original scientific paper

The frozen spin target at MAMI

Andreas Thomas ; Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, J.-J.-Becher-Weg 45, D 55099 Mainz, Germany

Abstract

The A2-collaboration at the Mainz Microtron MAMI measures photon absorption cross sections using circularly and linearly polarized photons up to an energy of 1.5 GeV. The photons are produced in the 'Bremsstrahlung' process. In the years 2005/2006 the Crystal Ball detector, with its unique capability to cope with multi photon final states, was set up in Mainz. In 2010, the experimental apparatus was completed by the installation of a polarized target. The horizontal dilution refrigerator of the Frozen Spin Target was constructed by and is operated in close cooperation with the Joint Institute for Nuclear Research in Dubna, Russia. The system offers both longitudinally and transversely polarised protons and deuterons.

Keywords

Mainz Microtron; Crystal Ball detector; polarized target; longitudinally and transversely polarised protons and deuterons

Hrčak ID:

304723

URI

https://hrcak.srce.hr/304723

Publication date:

1.11.2011.

Article data in other languages: croatian

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