Development of organic scintillators

Brooks, F.D.

doi:10.1016/0029-554x(79)90729-8

Cited by 316 publications

(143 citation statements)

References 234 publications

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“…As mentioned above, the n-γ discrimination is based on the fact that the decay time differs between neutrons and γ-rays [18]. The difference comes from the scintillation mechanism.…”

Section: Characteristics Of Pulse Shape Andmentioning

confidence: 99%

“…2. The prompt component is associated with a single scintillation process due to the resonance transition from the first excited singlet state to the ground singlet state, and independent of the particles, which induce the excitation [18]. The difference appears mainly in the slow component, which is related to the intercombination transition from the triplet state to the ground singlet state.…”

Section: Characteristics Of Pulse Shape Andmentioning

confidence: 99%

“…The excitation to the triplet state increases with increasing linear energy transfer. The slow component is larger for neutrons since the linear energy transfer is higher for protons than for electrons [18]. Thus, it is important to determine the optimum t fast , at which the slow component becomes dominant in order to achieve the best quality of the discrimination.…”

Section: Characteristics Of Pulse Shape Andmentioning

confidence: 99%

“…The photomultiplier and its base were of fast response and high-peak current. This system successfully achieved the counting rate higher than 1 × 10 5 counts/s (cps) and also enabled the observation of d-T neutrons with the energy of 14 MeV from deuteriumtritium reaction [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Research and Development of Neutron Detection System using Scintillator and Digital-Signal Processing

Shinohara

Ishii

Ochiai

et al. 2013

Plasma and Fusion Research

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A collimated neutron flux array system in JT-60U successfully upgraded performance of higher counting rate and the capability to detect 14 MeV neutrons as well by using a fast digitizer in 2006. Additionally, detailed analysis of the recorded waveform on JT-60U and FNS has provided us new findings. In this paper, firstly, characteristics of pulse shapes and neutron-gamma discrimination parameters investigated by the detailed analysis of digitized waveform data are described. Next, new data analysis procedure for neutron-gamma discrimination based on the characteristics is proposed. In the new procedure, an appropriate projection surface, on which we can define the discrimination boundary, has been introduced in three-dimensional discrimination parameter space. The problem of "pulse height variation", which occurs when a counting rate is high in high performance plasma, and its countermeasures are also presented. The system using the countermeasure of a booster method successfully has avoided the problem in the high neutron flux condition of ∼2 × 10 5 counts/s on FNS.

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“…As mentioned above, the n-γ discrimination is based on the fact that the decay time differs between neutrons and γ-rays [18]. The difference comes from the scintillation mechanism.…”

Section: Characteristics Of Pulse Shape Andmentioning

confidence: 99%

Section: Characteristics Of Pulse Shape Andmentioning

confidence: 99%

Section: Characteristics Of Pulse Shape Andmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research and Development of Neutron Detection System using Scintillator and Digital-Signal Processing

Shinohara

Ishii

Ochiai

et al. 2013

Plasma and Fusion Research

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“…Organic scintillation detectors remain strong candidates for these applications because the light output of certain organic scintillators display both fast and slow decay-components, related to the specific energy loss of the recoiling charged particle by the Birks relation. 2 Pulse shape discrimination (PSD), established 3 in the 1950s and developed through the 1960s, allows the identification of different types of charged particles in these scintillator detectors by means of the characteristics of the scintillation decay. Liquid organic scintillators such as EJ301 remain a popular choice when good-quality PSD is required.…”

Section: Introductionmentioning

confidence: 99%

A new compact neutron/gamma ray scintillation detector

Buffler

Comrie

Smit

et al. 2016

Int. J. Mod. Phys. Conf. Ser.

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Progress towards the realization of a new compact neutron spectrometer is described. The detector is based on EJ299-33 plastic scintillator coupled to silicon photomultipliers, and a digital implementation of pulse shape discrimination is used to separate events associated with neutrons from those associated with gamma rays. The spectrometer will be suitable over the neutron energy range 1-100 MeV, illustrated in this work with measurements made using an AmBe radioisotopic source and quasi-monoenergetic neutron beams produced using a cyclotron.

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Detectors, Scintillation

Norman

2003

Digital Encyclopedia of Applied Physics

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Development of organic scintillators

Cited by 316 publications

References 234 publications

Research and Development of Neutron Detection System using Scintillator and Digital-Signal Processing

Research and Development of Neutron Detection System using Scintillator and Digital-Signal Processing

A new compact neutron/gamma ray scintillation detector

Detectors, Scintillation

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