Abstract
The construction and characteristics of the PIBETA spectrometer are described. This spectrometer is designed to implement a program of precise measurement of pion β decay π+ → π0 + e + + νe at the Paul Scherrer Institute (Switzerland). A spherical calorimeter, consisting of 240 crystals of pure CsI scintillator and embracing a solid angle of ∼3π, is the main detector of the setup. In addition, the spectrometer is composed of an active collimator (which also acts as a beam degrader), a segmented active plastic target, two multiwire cylindrical proportional chambers, a 20-element cylindrical plastic hodoscope, and veto counters of cosmic muons.
Original language | English (US) |
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Pages (from-to) | 168-176 |
Number of pages | 9 |
Journal | Instruments and Experimental Techniques |
Volume | 48 |
Issue number | 2 |
DOIs | |
State | Published - Mar 2005 |
ASJC Scopus subject areas
- Instrumentation