A new detector system for the ALC spectrometer-First experience with G-APDs in mu SR instrumentation

作者：Stoykov A^*; Scheuermann R; Sedlak K; Shiroka T; Zhuk V

来源：Physica B: Condensed Matter , 2009, 404(5-7): 986-989.

DOI：10.1016/j.physb.2008.11.211

• Muon
• Avoided level crossing
• Scintillation counter
• Avalanche photodiode

The development of a new detector system for the avoided level crossing (ALC) mu SR-spectrometer, located at the Swiss Muon Source of the Paul Scherrer Institut, is presented.
The distinctive feature of the new ALC-detector is the absence of the traditionally used components photomultiplier tubes and light guides. Their functionality is taken over by Geiger-mode avalanche photodiodes (G-APDs) and wavelength-shifting fibers. This approach allows us to build a compact, magnetic field insensitive detector, requiring low operation voltage.

• 出版日期2009-4-15