Neutron Spectrometry With Scintillating Bolometers of LiF and Sapphire
Two scintillating bolometers of LiF (33 g) and Al 2 O 3 (50 g) at 20 mK, inside a lead shielding at the Canfranc Underground Laboratory, were irradiated with neutrons from a source of 252 Cf. The analysis of nuclear recoils registered by sapphire and (n, α) captures by 6 Li shows the feasibility of...
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| Veröffentlicht in: | IEEE transactions on nuclear science 2016-06, Vol.63 (3), p.1967-1975 |
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| container_end_page | 1975 |
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| container_issue | 3 |
| container_start_page | 1967 |
| container_title | IEEE transactions on nuclear science |
| container_volume | 63 |
| creator | Coron, Noel Cuesta, Clara Garcia, Eduardo Ginestra, Carlos Gironnet, Johann de Marcillac, Pierre Martinez, Maria Ortigoza, Ysrael Ortiz de Solorzano, Alfonso Puimedon, Jorge Redon, Thierry Rolon, Tomas Sarsa, Maria L. Torres, Lidia Villar, Jose A. |
| description | Two scintillating bolometers of LiF (33 g) and Al 2 O 3 (50 g) at 20 mK, inside a lead shielding at the Canfranc Underground Laboratory, were irradiated with neutrons from a source of 252 Cf. The analysis of nuclear recoils registered by sapphire and (n, α) captures by 6 Li shows the feasibility of these cryogenic devices to measure the spectral flux of a neutron field. Data unfolding was done assuming that the spectral flux is a piecewise constant function defined on six energy groups. It can be solved by using non-negative least squares without additional assumptions on the neutron flux. The model provides consistent results with the spectra of the observed events in bolometers, giving a fast neutron flux of Φ(E > 0.1 MeV) = 0.20 n s -1 cm -2 with a 15% uncertainty after 3 hours of live time. After our analysis, it can be concluded that nuclear recoils in sapphire are more useful than (n, α) captures in LiF for spectrometry of fast neutrons. |
| doi_str_mv | 10.1109/TNS.2016.2561280 |
| format | Article |
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The analysis of nuclear recoils registered by sapphire and (n, α) captures by 6 Li shows the feasibility of these cryogenic devices to measure the spectral flux of a neutron field. Data unfolding was done assuming that the spectral flux is a piecewise constant function defined on six energy groups. It can be solved by using non-negative least squares without additional assumptions on the neutron flux. The model provides consistent results with the spectra of the observed events in bolometers, giving a fast neutron flux of Φ(E > 0.1 MeV) = 0.20 n s -1 cm -2 with a 15% uncertainty after 3 hours of live time. After our analysis, it can be concluded that nuclear recoils in sapphire are more useful than (n, α) captures in LiF for spectrometry of fast neutrons.</description><identifier>ISSN: 0018-9499</identifier><identifier>EISSN: 1558-1578</identifier><identifier>DOI: 10.1109/TNS.2016.2561280</identifier><identifier>CODEN: IETNAE</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Bolometers ; Crystals ; Electronic mail ; Heating ; Neutrons ; radiation detectors ; Scattering ; solid scintillation detectors ; Spectroscopy</subject><ispartof>IEEE transactions on nuclear science, 2016-06, Vol.63 (3), p.1967-1975</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The analysis of nuclear recoils registered by sapphire and (n, α) captures by 6 Li shows the feasibility of these cryogenic devices to measure the spectral flux of a neutron field. Data unfolding was done assuming that the spectral flux is a piecewise constant function defined on six energy groups. It can be solved by using non-negative least squares without additional assumptions on the neutron flux. The model provides consistent results with the spectra of the observed events in bolometers, giving a fast neutron flux of Φ(E > 0.1 MeV) = 0.20 n s -1 cm -2 with a 15% uncertainty after 3 hours of live time. After our analysis, it can be concluded that nuclear recoils in sapphire are more useful than (n, α) captures in LiF for spectrometry of fast neutrons.</description><subject>Bolometers</subject><subject>Crystals</subject><subject>Electronic mail</subject><subject>Heating</subject><subject>Neutrons</subject><subject>radiation detectors</subject><subject>Scattering</subject><subject>solid scintillation detectors</subject><subject>Spectroscopy</subject><issn>0018-9499</issn><issn>1558-1578</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kM1PwzAMxSMEEmNwR-ISiXNH3Hy0OcLEAGkahw5xjNLUZZm6tqTZYf89nTZxsi2_52f9CLkHNgNg-mm9KmYpAzVLpYI0ZxdkAlLmCcgsvyQTxiBPtND6mtwMw3YchWRyQhYr3MfQtbTo0Y3NDmM40G8fN7Rwvo2-aWz07Q996ZrjEsNAu5ou_YLatqKF7fuND3hLrmrbDHh3rlPytXhdz9-T5efbx_x5mTjOeUwwq0QFNbCUKcyR6woAc2XzugSGQonx9zLFSnJRVrzkZe2kE05mVgF3HPmUPJ7u9qH73eMQzbbbh3aMNJBpzTRwrkYVO6lc6IYhYG364Hc2HAwwc6RlRlrmSMucaY2Wh5PFI-K_PBOKSyb4H_AMZaM</recordid><startdate>201606</startdate><enddate>201606</enddate><creator>Coron, Noel</creator><creator>Cuesta, Clara</creator><creator>Garcia, Eduardo</creator><creator>Ginestra, Carlos</creator><creator>Gironnet, Johann</creator><creator>de Marcillac, Pierre</creator><creator>Martinez, Maria</creator><creator>Ortigoza, Ysrael</creator><creator>Ortiz de Solorzano, Alfonso</creator><creator>Puimedon, Jorge</creator><creator>Redon, Thierry</creator><creator>Rolon, Tomas</creator><creator>Sarsa, Maria L.</creator><creator>Torres, Lidia</creator><creator>Villar, Jose A.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| issn | 0018-9499 1558-1578 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Bolometers Crystals Electronic mail Heating Neutrons radiation detectors Scattering solid scintillation detectors Spectroscopy |
| title | Neutron Spectrometry With Scintillating Bolometers of LiF and Sapphire |
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