Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8252417 | Radiation Physics and Chemistry | 2015 | 5 Pages |
Abstract
Recently invented plastic scintillator EJ-299-33 enables pulse-shape discrimination (PSD) and thus measurement of neutron and photon spectra in mixed fields. In this work we compare the PSD properties of EJ-299-33 plastic and the well-known NE-213 liquid scintillator in monoenergetic neutron fields generated by the Van de Graaff accelerator using the 3H(d, n)4He reaction. Pulses from the scintillators are processed by a newly developed digital measuring system employing the fast digitizer card. This card contains two AD converters connected to the measuring computer via 10Â Gbps optical ethernet. The converters operate with a resolution of 12 bits and have two differential inputs with a sampling frequency 1Â GHz. The resulting digital channels with different gains are merged into one composite channel with a higher digital resolution in a wide dynamic range of energies. Neutron signals are fully discriminated from gamma signals. Results are presented.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
A. JanÄáÅ, Z. Kopecký, J. Dressler, M. VeÅ¡krna, Z. MatÄj, C. Granja, M. Solar,