A SINGLE-EXPOSURE, MULTIDETECTOR NEUTRON SPECTROMETER FOR WORKPLACE MONITORING.
This communication describes a recently developed single-exposure neutron spectrometer, based on multiple active thermal neutron detectors located within a moderating sphere, which have been developed jointly by CIEMAT (Spain), INFN (Italy) and Politecnico di Milano (Italy) in the framework of Italian and Spanish collaboration projects. The fabricated prototypes permit to achieve spectrometric resolution with nearly isotropic response for neutron with energies from thermal to 100-200 MeV, thus being able to characterise the complete neutron spectrum in only one exposure by unfolding the measured responses of the detectors. This makes it especially advantageous for characterising neutron fields and workplace monitoring purposes in neutron-producing facilities.
IFNF-LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, Frascati 00044, Italy.
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Bedogni
Dipartimento di Energia, Politecnico di Milano, Via La Masa 34, Milano 20156, Italy.
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Bortot
IFNF-LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, Frascati 00044, Italy.
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Buonomo
IFNF-LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, Frascati 00044, Italy.
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Esposito
IFNF-LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, Frascati 00044, Italy CIEMAT, Av. Complutense 22, Madrid 28040, Spain jm.gomezros@ciemat.es.
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Gómez-Ros
Dipartimento di Energia, Politecnico di Milano, Via La Masa 34, Milano 20156, Italy.
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Introini
IFNF-LNF Laboratori Nazionali di Frascati, Via E. Fermi n. 40, Frascati 00044, Italy.
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Mazzitelli
CIEMAT, Av. Complutense 22, Madrid 28040, Spain.
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Moraleda
Dipartimento di Energia, Politecnico di Milano, Via La Masa 34, Milano 20156, Italy.
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Pola
CIEMAT, Av. Complutense 22, Madrid 28040, Spain.
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Romero
D002138:Calibration; D006801:Humans; D007558:Italy; D009502:Neutrons; D016273:Occupational Exposure / Q000032:analysis* / Q000517:prevention & control; D017785:Photons; D020959:Polyethylene; D011829:Radiation Dosage; D000072232:Radiation Dosimeters; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D013030:Spain; D013057:Spectrum Analysis / Q000295:instrumentation*; D017132:Workplace
D020959:Polyethylene