Gain reduction due to space charge in a multiwire proportional chamber irradiated by a uniform beam of rectangular section

Characterization of the Multi-Blade 10B-based detector at the CRISP reflectometer at ISIS for neutron reflectometry at ESS

“…The individual readout is the sole scheme that can lead to a high counting rate applications for two main reasons: global dead time is reduced since each channel is independent from the others, the amount of charge needed to perform the individual readout is generally lower than that of charge division to achieve the same signal-to-noise. Moreover, less charge means smaller space charge effects [33][34][35] which affects the gas gain variation of the detector at high rates. Note that, at high rate operation, the individual readout (as opposed to charge division) is mandatory to disentangle hits occurring nearly at the same time (that is, unresolved due to the finite time resolution of the detector).…”

A comprehensive study of rate capability in Multi-Wire Proportional Chambers

“…The data is interpreted within the theoretical framework developed by Mathieson and Smith ([10], [11]).…”

Development and characterization of detectors for large area application in neutron scattering and small area application in neutron reflectometry

“…Front-end on strips 9 boards (32x9ch) Moreover, less charge means smaller space charge effects [115,116,117] which affects the gas gain variation of the detector at high rates. Note that, at high rate operation, the individual readout (as opposed to charge division) is mandatory to disentangle hits occurring nearly at the same time (that is, unresolved due to the finite time resolution of the detector).…”