Discrimination methods between neutron and gamma rays for boron loaded plastic scintillators

Normand, S.; Mouanda, B.; Haan, S.; Louvel, M.

doi:10.1016/s0168-9002(01)02016-2

Cited by 55 publications

(18 citation statements)

References 8 publications

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“…Due to the low atomic number of boron, there is no gamma rays detection enhancement and the thermal cross section of B allows a moderate, yet efficient loading. Also, as the capture of the thermal neutron releases an alpha particle, pulse discrimination is therefore possible [15].…”

Section: Thermal Neutron Detectionmentioning

confidence: 99%

Plastic scintillators modifications for a selective radiation detection

Bertrand

Carrel

Coulon

et al. 2015

2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and Their Applications (ANIMMA

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Section: Thermal Neutron Detectionmentioning

confidence: 99%

Plastic scintillators modifications for a selective radiation detection

Bertrand

Carrel

Coulon

et al. 2015

2015 4th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and Their Applications (ANIMMA

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“…[32][33][34] However, light collection using the scintillator bar/WLS fiber readout configuration is unlikely to work with pulse shape discrimination due to the low number of photons from an event actually reaching the MAPMT compared with the number of photons initially emitted in a scintillation event and the change in pulse shape from the readout fibers (the fibers re-emit shifted photons over a period of nanoseconds following initial photon absorption).…”

Section: B Pulse Height and Shape Discriminationmentioning

confidence: 99%

Signal Analysis for Radiation Event Identification

Wallace¹

2004

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An analysis program has been developed to identify scintillation pulses using the digitized signals from two photomultiplier tubes viewing the output from a common source. The analysis is directed towards identifying the noise pulses in the background signal level. In this work a neutron detector test system is constructed and methods incorporated into a program for processing digitized signals from the detector so as to determine the effectiveness of amplitude discrimination for identifying neutron pulses in the presence of spurious events. Two methods are used for identifying pulses, one based on locating a monotonic increase in the signal amplitude exceeding some threshold value and the other on a locating a number of sequential signal data points exceeding the mean and standard deviation of the baseline of the record. The software written for controlling the digital oscilloscope is flexible and allows the selection of records to be taken such that statistically useful properties can be calculated as to the loss of efficiency that results from using a discriminator to remove noise. Experimental results are presented for a lithiated sol-gel based neutron scintillator tested using this system.

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“…2) Different time gate methods (charge integration): In these methods, the pulse charge ratio is measured for short and long time gates, which are more efficient for fast and slow components, respectively [7] , [10]. 3) Digital filter methods: In these methods, each pulse shape is digitized and compared with two different standard pulse shapes, which are simulated beforehand for γ and α-rays [11][12][13].…”

Section: Introductionmentioning

confidence: 99%