A capture-gated neutron spectrometer for characterization of neutron sources and their shields

Holm, Philip; Perajärvi, K.; Ristkari, Samu; Siiskonen, T.; Toivonen, H.

doi:10.1016/j.nima.2014.03.021

Cited by 15 publications

(6 citation statements)

References 9 publications

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“…There are various options for making liquid, plastic or glass scintillators doped with neutron capture materials (Li or B) [27]. The major drawback in this approach is that they tend to have poor neutron-gamma ray separation.…”

Section: Neutron Detection Optionsmentioning

confidence: 99%

Progress in alternative neutron detection to address the helium-3 shortage

Kouzes

Lintereur

Siciliano

2015

Nuclear Instruments and Methods in Physics Research Section A:

102

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a b s t r a c tOne of the main uses for 3 He is in gas proportional counters for neutron detection. Such detectors are used at neutron scattering science facilities and in radiation portal monitors deployed for homeland security and non-proliferation applications. Other uses of 3 He are for research detectors, commercial instruments, well logging detectors, dilution refrigerators, lung imaging, for targets in nuclear research, and for basic research in condensed matter physics. The supply of 3 He comes entirely from the decay of tritium produced for nuclear weapons in the U.S. and Russia. Due to the large increase in use of 3 He for science and homeland security (since 2002), the supply could no longer meet the demand. This has led to the development of a number of alternative neutron detection schemes.

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Section: Neutron Detection Optionsmentioning

confidence: 99%

Progress in alternative neutron detection to address the helium-3 shortage

Kouzes

Lintereur

Siciliano

2015

Nuclear Instruments and Methods in Physics Research Section A:

102

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“…The investigation of a capture-gated boron-loaded scintillator by Holm, et al, utilized an EJ-254 boron-loaded plastic scintillator optically coupled to a Scionix ETL 9305 PMT [18]. The measurements were read-out by a Canberra Osprey digital MCA.…”

Section: Current Multimode Detection Capabilitiesmentioning

confidence: 99%

“…The measurements were read-out by a Canberra Osprey digital MCA. Data acquisition and analysis was performed using STUK software [18]. The assembly is presented in Figure 5.…”

Section: Current Multimode Detection Capabilitiesmentioning

confidence: 99%

“…This investigation demonstrates the ability of a boron-loaded organic scintillator to be used for PSD purposes to discriminate between thermal neutrons, fast neutrons, and gamma rays, albeit with an inferior FOM to that of CLYC. Coupled with the results of the Holm, et al, investigation, boron-loaded organic scintillators can be used to detect and discriminate thermal neutrons, fast neutrons, and gamma rays, and perform fast neutron spectroscopy [18]. The capability of boronloaded organic scintillators to perform gamma-ray spectroscopy has yet to be characterized in detail.…”

Section: Current Multimode Detection Capabilitiesmentioning

confidence: 99%

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Applications of Elpasolites as a Multimode Radiation Sensor

Guckes

2016

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“…A scintillator loaded with a high neutron capture cross-section isotope such as 10 B, 6 Li or gadolinium allows the extension of neutron detection below the 450 keV limit imposed by a typical non-loaded liquid organic scintillator, whilst still being able to detect fast neutron interactions. With a high neutron capture cross section, 10 B-loaded scintillators have been extensively used for thermal neutron detection [6][7][8][9][10][11]. These scintillators are typically loaded with up to 5% fractional -1 -…”

Section: Introductionmentioning

confidence: 99%

Neutron assay in mixed radiation fields with a⁶Li-loaded plastic scintillator

2015

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A novel technique for assay of thermal and fast neutrons in a 6 Li-loaded plastic scintillator is presented. Existing capture-gated thermal neutron detection techniques were evaluated with the 6 Li-loaded plastic scintillator studied in this work. Using simulations and experimental work, shortcomings in its performance were highlighted. As a result, it was proposed that by separating the combined fast and thermal neutron events from gamma events, using established pulse shape discrimination techniques, the thermal neutron events could then be assayed. Experiments were conducted at the National Physical Laboratory, Teddington, performing neutron assays with seven different neutron fields using the proposed technique. For each field, thermal and fast neutron content was estimated and were shown to corroborate with the seven synthesised fields.

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A capture-gated neutron spectrometer for characterization of neutron sources and their shields

Cited by 15 publications

References 9 publications

Progress in alternative neutron detection to address the helium-3 shortage

Progress in alternative neutron detection to address the helium-3 shortage

Applications of Elpasolites as a Multimode Radiation Sensor

Neutron assay in mixed radiation fields with a⁶Li-loaded plastic scintillator

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A capture-gated neutron spectrometer for characterization of neutron sources and their shields

Cited by 15 publications

References 9 publications

Progress in alternative neutron detection to address the helium-3 shortage

Progress in alternative neutron detection to address the helium-3 shortage

Applications of Elpasolites as a Multimode Radiation Sensor

Neutron assay in mixed radiation fields with a6Li-loaded plastic scintillator

Contact Info

Product

Resources

About

Neutron assay in mixed radiation fields with a⁶Li-loaded plastic scintillator