Calibration of Time Of Flight Detectors Using Laser-driven Neutron Source
S.R. Mirfayzi, S. Kar, H. Ahmed, A.G. Krygier, A. Green, A. Alejo, R., Clarke, R.R. Freeman, J. Fuchs, D. Jung, A. Kleinschmidt, J.T. Morrison, Z., Najmudin, H. Nakamura, P. Norreys, M. Oliver, M. Roth, L. Vassura, M. Zepf,, M. Borghesi
TL;DR
This paper presents a method for calibrating time-of-flight detectors using a laser-driven neutron source, employing bubble detectors for absolute calibration across a broad neutron energy spectrum.
Contribution
It introduces a calibration technique for TOF detectors with laser-driven neutrons, validated by bubble detector spectrometers over a wide energy range.
Findings
Successful calibration of three scintillators using bubble detectors
Neutron spectrum measurement from laser-irradiated foil
Validation of detector performance across 0.1 MeV to 20 MeV
Abstract
Calibration of three scintillators (EJ232Q, BC422Q and EJ410) in a time-of-flight (TOF) arrangement using a laser drive-neutron source is presented. The three plastic scintillator detectors were calibrated with gamma insensitive bubble detector spectrometers, which were absolutely calibrated over a wide range of neutron energies ranging from sub MeV to 20 MeV. A typical set of data obtained simultaneously by the detectors are shown, measuring the neutron spectrum emitted from a petawatt laser irradiated thin foil.
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