Application of digital zero-crossing technique for neutron–gamma discrimination in liquid organic scintillation detectors

Digital pulse-timing technique for the neutron detector array NEDA

“…For example, for very fast timing applications, it has been shown that digital algorithms for BaF 2 scintillators, using a 1 GS/s sampling ADC, can give a timing performance that is better than that obtained with traditional analog systems [14]. Besides achieving the best possible timing resolution, digital systems have been widely employed for PSA to perform neutron-γ discrimination with organic scintillators [15], using the zero-crossing [16] and double integration methods [17,18]. Specifically for the BC501A scintillator, digital neutron-γ discrimination has been widely exploited [19][20][21][22] and it has been shown that for PSA purposes a digitizer with a sampling rate of 200 MS/s and a resolution of 14 bits is suitable [20].…”

A Digital Method of Noise Measurement of Charge-sensitive Preamplifiers Used with Detectors of Ionizing Radiation

“…Consequently, a new method based on digital signal processing was developed in this paper. Compared with the AC voltmeter method, the digital method is simple, efficient, and low-cost [5][6][7]. Furthermore, since the signal is digitized early, it becomes more stable and reliable during the transmission and processing.…”

Digital neutron/gamma discrimination with an organic scintillator at energies between 1 MeV and 100 MeV

“…This "zero-crossing" of the bipolar signal will be dependent on the rise time of the integrated pulse, and can therefore be used to classify pulses. This method has been shown to outperform the digital charge comparison algorithm under certain conditions [22].…”

“…The gamma-rays from 22 Na, 137 Cs, 207 Bi and Am-Be radioisotopic sources were used for scaling Q L to a light output parameter L in units of MeV electron equivalent (MeV ee ). The relationship between Q L and L was found to be linear over the energy range of the calibration sources, and was assumed to be linear over the energy range of the measurements.…”