Corrigendum to “The development of a 6Li-based pixelated neutron detector for neutron reflectometry at the Spallation Neutron Source” [Nucl. Instrum. Methods Phys. Res. A 1039 (2022) 167052]

Chong, Su-Ann; Riedel, Richard F.; Funk, L.; Visscher, Theodore; Donahue, Cornelius; Montcalm, Christopher; Beal, Justin; Hayward, Jason P.; Doucet, M.

doi:10.1016/j.nima.2022.167483

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Neutron-sensitive MWPCs for a 2D-position registration are very useful for application in various neutron scattering techniques as conducted in neutron scattering research centers like ILL (France) [7], SNS (USA) [8], MLZ (Germany) [9] or J-PARC (Japan) [10] and in many more places worldwide and soon at the European Spallation Source (ESS) in Lund (Sweden) [11]. Their advantage over other neutron detector technologies are the low gamma sensitivity and a fast response compared to scintillator detectors as well as a spatially more homogenous response with a higher spatial resolution compared to tube detectors on the costs of sophisticated manufacturing techniques.…”

Section: Techniques For Neutron-sensitivity Of Mwpcmentioning

confidence: 99%

A design study of a 1-m²Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

Nowak,

Stefanescu,

Beldowski

et al. 2023

EPJ Web Conf.

View full text Add to dashboard Cite

Neutron detection by MWPC based on 10B4C coatings can surpass in performance the one utilising 3He-gas in terms of position resolution and count rate capability at similar detection efficiency [13]. The use of m2-size foils coated by 10B4C demands the development of a mechanical concept to avoid deformations of the neutron sensitive surface due to their own weight and the electrostatic forces resulting from high voltage for operation. To preserve a flat shape of the converter, a pressure gradient is applied between its both sides [4]. The design shall allow a stacking of detection modules consisting of sequenced elements [converter/x-y-multi-wire planes/converter] in few mm proximity. A multiple stacking of the detector modules is needed to accumulate a sufficient high detection efficiency for diffraction with thermal neutrons over the entire detector [2]. The MWPC is planned to have fifteen detection modules corresponding to an efficiency equivalent of 30 converters coated with 1.2 µm of 10B4C. Efficiency simulations of a converter coating thickness-profile from 0.6 µm up to 1.2 µm prognoses a conversion rate up to 50 % for thermal neutrons and the presented design parameters of the 1-m2 MWPC allow a position resolution of 2 mm.

show abstract

Section: Techniques For Neutron-sensitivity Of Mwpcmentioning

confidence: 99%

A design study of a 1-m²Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

Nowak,

Stefanescu,

Beldowski

et al. 2023

EPJ Web Conf.

View full text Add to dashboard Cite

show abstract

“…Specific requirements vary depending on technique and instrument, therefore the flexibility to tailor detector design to unique instrument requirements is critical. In general, most detectors at scattering facilities are required to have high neutron detection efficiency (up to 80% at thermal wavelengths), high count rate capability (up to 1 M counts per second (cps) cm −2 ), low gamma sensitivity (fewer than 1 in 10 5 gammas counted), low background rate (down to 0.1 counts hr −1 cm −2 ) and fine (sub-millimetre) position resolution [2,[14][15][16][17]. Large area and solid angle coverage (up to tens of m 2 , close to 4π) is also often required [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, lithium glass scintillators are not appropriate for various neutron techniques. Instead, they are predominately used for applications where low gamma sensitivities are not as critical, such as beamline monitors, as well as in cases where gamma rejection is sacrificed to meet other specifications [15].…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle ZnS:Ag/⁶LiF—a new high count rate neutron scintillator with pulse shape discrimination

Mann,

Schooneveld,

Rhodes

et al. 2024

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

A neutron sensitive scintillator employing nanoparticles of ZnS:Ag has been developed for the first time. Pulse shape differences between neutron and gamma signals were observed in this material and neutron-gamma discrimination was applied. With initial signal processing parameters, gamma sensitivities of 8.5 × 10-6 to 60Co gammas were achieved. The average primary decay of neutron scintillation in nanoparticle ZnS:Ag/6LiF was measured to be 18ns, and afterglow was significantly suppressed in comparison to standard ZnS:Ag/6LiF scintillators that employ micron sized ZnS:Ag. Fast decay times and minimal afterglow indicate potential for use in high count rate capability applications. Prospective count rate capabilities were investigated here as proof of concept, with rates of 1.12Mcps measured for a single readout channel with less than 3.5% count loss. This is approximately 70 times greater than the count rate capability of the current standard ZnS:Ag/6LiF scintillation detectors. With improvements to signal processing and scintillator composition, nanoparticle ZnS:A/6LiF could be a promising candidate for future high rate capability neutron detectors.

show abstract

Corrigendum to “The development of a 6Li-based pixelated neutron detector for neutron reflectometry at the Spallation Neutron Source” [Nucl. Instrum. Methods Phys. Res. A 1039 (2022) 167052]

Cited by 2 publications

References 0 publications

A design study of a 1-m²Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

A design study of a 1-m²Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

Nanoparticle ZnS:Ag/⁶LiF—a new high count rate neutron scintillator with pulse shape discrimination

Contact Info

Product

Resources

About

Corrigendum to “The development of a 6Li-based pixelated neutron detector for neutron reflectometry at the Spallation Neutron Source” [Nucl. Instrum. Methods Phys. Res. A 1039 (2022) 167052]

Cited by 2 publications

References 0 publications

A design study of a 1-m2Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

A design study of a 1-m2Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

Nanoparticle ZnS:Ag/6LiF—a new high count rate neutron scintillator with pulse shape discrimination

Contact Info

Product

Resources

About

A design study of a 1-m²Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

A design study of a 1-m²Multi-Wire-Proportional-Chamber Position-Sensitive-Neutron-Detector (MWPC-PSND)

Nanoparticle ZnS:Ag/⁶LiF—a new high count rate neutron scintillator with pulse shape discrimination