F. Casagrande et al., THE ARGON GAS DETECTORS FOR THE FISSION MEASUREMENT IN THE FEAT, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 372(1-2), 1996, pp. 307-310
A fission detector developed for the first energy amplifier test made
at CERN-PS during the period September-October 1994 [1,2] will be desc
ribed. The device is a small dimension high pressure argon gas ionizat
ion chamber with high background rejection and very high efficiency on
2 pi for fission fragments. The number of fissions produced in a fiss
ile target allows the neutron flux measurement.