A multi-anode photomultiplier tube based wavelength-shifting-fiber detector for neutron diffraction

Wang, CL; Berry, Kevin D.; Clonts, L.G.; Crow, Lowell; Diawara, Y.; Funk, L.; Hodges, J. P.; Riedel, Richard A.; Kline, C.; Workman, H. E.

doi:10.1109/nssmic.2012.6551088

Cited by 3 publications

(9 citation statements)

References 7 publications

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“…Figure 1 shows the schematic of the two detection units which were tested in the present work. They consist of two ZnS/ 6 LiF scintillating layers (ND2:1 from Applied Scintillation Technologies [9]) sandwiching an array of WLS fibers (Y11(200)M from Kuraray [10]) with a diameter of 250 µm. The fiber pitch is 0.6 mm and 0.8 mm for the 4-fiber and 3-fiber detection units, respectively.…”

Section: The Detection Unitsmentioning

confidence: 99%

“…The 6 Li concentration in the scintillating layers has been determined with a neutron transmission measurement. It amounts to 1.4 • 10 22 atoms/cm 3 .…”

Section: The Detection Unitsmentioning

confidence: 99%

“…This technology is now widely used and well established. The two single-crystal time-of-flight diffractometers SENJU [3,4] and iBIX [5] at J-PARC, as well as the engineering diffractometer VULCAN [6,7] and the powder diffractometer POWGEN3 [8] in ORNL are examples of instruments currently in operation which are equiped with detectors based on this technology. Up to now, all the detectors of this kind use photomultiplier tubes (PMTs) or multi-anode photomultiplier tubes (MaPMTs) to read out the WLS fibers.…”

Section: Introductionmentioning

confidence: 99%

“…The worldwide supply shortage of 3 He which started in 2009 stimulated the development of alternatives to 3 He gas detectors for thermal neutron detection [2]. One of this alternatives is based on ZnS/ 6 LiF or ZnS/ 10 B 2 O 3 scintillators combined with wavelength shifting (WLS) fibers for collecting the scintillation light. This technology is now widely used and well established.…”

Section: Introductionmentioning

confidence: 99%

“…Two variants of a single channel detection unit which can constitute an elementary building block for a one dimensional position sensitive multi-channel detector have been investigated in a neutron beam. The detection units consist of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a silicon photomultiplier (SiPM). In this paper, we present the design of the detection units, the signal processing system and the measurements of the probability of neutron capture, the light yield distribution for the capture of neutrons, the trigger efficiency, the system background rate, the count rate capability.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of two thermal neutron detection units consisting of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a SiPM

Mosset

Stoykov

Greuter

et al. 2014

Nuclear Instruments and Methods in Physics Research Section A:

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Two single channel detection units for thermal neutron detection are investigated in a neutron beam. They consist of two ZnS/ 6 LiF scintillating layers sandwiching an array of WLS fibers. The pattern of this units can be repeated laterally and vertically in order to build up a one dimensional position sensitive multi-channel detector with the needed sensitive surface and with the required neutron absorption probability. The originality of this work arises from the fact that the WLS fibers are read out with SiPMs instead of the traditionally used PMTs or MaPMTs. The signal processing system is based on a photon counting approach. For SiPMs with a dark count rate as high as 0.7 MHz, a trigger efficiency of 80% is achieved together with a system background rate lower than 10 −3 Hz and a dead time of 30 µs. No change of performance is observed for neutron count rates of up to 3.6 kHz.

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Section: The Detection Unitsmentioning

confidence: 99%

“…The 6 Li concentration in the scintillating layers has been determined with a neutron transmission measurement. It amounts to 1.4 • 10 22 atoms/cm 3 .…”

Section: The Detection Unitsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of two thermal neutron detection units consisting of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a SiPM

Mosset

Stoykov

Greuter

et al. 2014

Nuclear Instruments and Methods in Physics Research Section A:

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Uniformity measurements and new positioning algorithms for wavelength-shifting fiber neutron detectors

Wang

Riedel

2014

Nuclear Instruments and Methods in Physics Research Section A:

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Performance test of different silicon photomultipliers for the ⁶LiF:ZnS(Ag) based neutron detectors of CSNS

Huang

Tang

et al. 2022

J. Inst.

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The China Spallation Neutron Source (CSNS) is a large scientific facility whose main aim is to support multidisciplinary research on material characterization using neutron scattering. Twenty neutron spectrometers will be built as multidisciplinary platforms for scientific research by national institutions, universities, and industry. Scintillator neutron detectors for the spectrometers under construction have recently been developed using silicon photomultipliers (SiPMs) for the readout. This paper studies the characteristics of three candidate SiPMs, including the breakdown voltage, gain, temperature coefficient, dark count rate, and radiation tolerance. Two measurement platforms were built to evaluate each SiPM. We summarize the results from our analysis of laboratory tests and beam test data to characterize the performance of the SiPMs. The MicroFJ-30035-TSV SiPM manufactured by the SensL Corporation is chosen as the best SiPM for the scintillator detectors at CSNS.

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A multi-anode photomultiplier tube based wavelength-shifting-fiber detector for neutron diffraction

Cited by 3 publications

References 7 publications

Evaluation of two thermal neutron detection units consisting of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a SiPM

Evaluation of two thermal neutron detection units consisting of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a SiPM

Uniformity measurements and new positioning algorithms for wavelength-shifting fiber neutron detectors

Performance test of different silicon photomultipliers for the ⁶LiF:ZnS(Ag) based neutron detectors of CSNS

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A multi-anode photomultiplier tube based wavelength-shifting-fiber detector for neutron diffraction

Cited by 3 publications

References 7 publications

Evaluation of two thermal neutron detection units consisting of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a SiPM

Evaluation of two thermal neutron detection units consisting of ZnS/ 6 LiF scintillating layers with embedded WLS fibers read out with a SiPM

Uniformity measurements and new positioning algorithms for wavelength-shifting fiber neutron detectors

Performance test of different silicon photomultipliers for the 6LiF:ZnS(Ag) based neutron detectors of CSNS

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Performance test of different silicon photomultipliers for the ⁶LiF:ZnS(Ag) based neutron detectors of CSNS