SiC detectors for neutron monitoring

Manfredotti, C.; Giudice, A. Lo; Fasolo, F.; Vittone, E.; Paolini, C.; Fizzotti, F.; Zanini, A.; Wagner, G.; Lanzieri, C.

doi:10.1016/j.nima.2005.06.018

Cited by 46 publications

(29 citation statements)

References 17 publications

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“…Last but not least, very recently we have also checked the performance of such a detector, as compared to 3 He tubes, in a neutron diffractometer installed on a time of flight beam line at a spallation source. The results were outstanding and will be shown in a forthcoming paper [17].…”

Section: Resultsmentioning

confidence: 99%

“…During the last years the severe lack and the increasing cost of 3 He have triggered a worldwide R&D program seeking new technologies and methods for the neutron detection. A viable alternative is needed to 3 He-based neutron detectors which so far have been the most widely used systems, being almost insensitive to radiation other than thermal neutrons [1], [2].…”

Section: Introductionmentioning

confidence: 99%

“…A viable alternative is needed to 3 He-based neutron detectors which so far have been the most widely used systems, being almost insensitive to radiation other than thermal neutrons [1], [2]. One of the possibilities is the use of a semiconductor-based charged particle detector in combination with a neutron reactive film which converts neutrons into other detectable radiation [3]- [9]. Several principle studies have been done about this technique, and we have recently proved its feasibility by using commercial 3cm x 3cm silicon detectors coupled with thin layers of 6 LiF, where the 6 Li acts as converter due to its 940 b cross section to thermal neutrons [10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of the silicon+6LiF thermal neutron detection technique

Pappalardo

Barbagallo

Coséntino

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

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The worldwide need to replace 3 He for the neutron detection has triggered R&D on new technologies and methods. A promising one is based on commercial solid state silicon detectors coupled with thin neutron converter layers containing 6 Li. After proving the feasibility of this technique, we characterized the behavior of such a detector with different converter layer thicknesses. In this paper we also disentangle other contributions to the overall spectrum shape observed with this kind of detector, proving that its detection efficiency can be made reasonably high and that the gamma/neutron discrimination capability is comparable to the one of 3 He tubes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characterization of the silicon+6LiF thermal neutron detection technique

Pappalardo

Barbagallo

Coséntino

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

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“…Moreover the thermal neutron response was unchanged by a previous irradiation to fast neutron up to 1.3× 10 16 cm −2 . On the other hand larger-area SiC Schottky (20 mm 2 ) neutron detectors have been tested [14] based on the 100 m external 6 LiF-based NCL. The neutron response was clearly resolvable from that of gamma, ensuring the reliability of using SiC-based detectors in environments where gamma-rays may exist [4,15].…”

Section: Epj Web Of Conferencesmentioning

confidence: 99%

Improvements in Realizing 4H-SiC Thermal Neutron Detectors

Issa

Vervisch

Ottaviani

et al. 2016

EPJ Web of Conferences

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Abstract. In this work we presented two types of 4H-SiC semiconductor detectors (D1 and D2) both based on ion implantation of 10 B inside the aluminum metallic contact. The first detector shows a high leakage current after the implantation and low signal to noise ratio. However, improvements concerning the implantation parameters and the distance between the implanted 10 B thermal neutron converter layer and the active pn-junction have led to low leakage current and thus to higher signal to noise ratio. This proves the strength of this new method of realizing sensitive SiC-based thermal neutron detectors.

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“…For the detection of thermal or low energy neutrons, as a viable alternative to 3 He tubes [1,2], semiconductor-based detectors can be used in combination with a neutron reactive film, usually called neutron converter, which converts neutrons into charged particles.…”

Section: Introductionmentioning

confidence: 99%

HELNED: Helium-3-free low-cost neutron detectors

Barbagallo

Cosentino

Marchetta

et al. 2014

EPJ Web of Conferences

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Abstract. We developed a technique for thermal neutron detection not making use of 3 He, also suitable for online real time monitoring of CASTOR spent fuel containers. As a neutron converter we used 6 LiF, being the neutron capture cross section of 6 Li very well known and with only an alpha and a triton in the exit channel. We can deposit thin layers of converter onto several different substrates, to be placed on top of solid state detectors or scintillators capable of efficiently detecting the decay products.

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SiC detectors for neutron monitoring

Cited by 46 publications

References 17 publications

Characterization of the silicon+6LiF thermal neutron detection technique

Characterization of the silicon+6LiF thermal neutron detection technique

Improvements in Realizing 4H-SiC Thermal Neutron Detectors

HELNED: Helium-3-free low-cost neutron detectors

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