Response of neutron detectors to high-energy mixed radiation fields.
Radiat Prot Dosimetry
; 125(1-4): 289-92, 2007.
Article
en En
| MEDLINE
| ID: mdl-17337743
ABSTRACT
Radiation protection around CERN's high-energy accelerators represents a major challenge due to the presence of complex, mixed radiation fields. Behind thick shielding neutrons dominate and their energy ranges from fractions of eV to about 1 GeV. In this work the response of various portable detectors sensitive to neutrons was studied at CERN's High-Energy Reference Field Facility (CERF). The measurements were carried out with conventional rem counters, which usually cover neutron energies up to 20 MeV, the Thermo WENDI-2, which is specified to measure neutrons up to several GeV, and a tissue-equivalent proportional counter. The experimentally determined neutron dose equivalent results were compared with Monte Carlo (MC) simulations. Based on these studies field calibration factors can be determined, which result in a more reliable estimate of H*(10) in an unknown, but presumably similar high-energy field around an accelerator than a calibration factor determined in a radiation field of a reference neutron source.
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Base de datos:
MEDLINE
Asunto principal:
Aceleradores de Partículas
/
Protección Radiológica
/
Monitoreo de Radiación
/
Exposición a Riesgos Ambientales
/
Modelos Teóricos
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
/
Health_economic_evaluation
/
Prognostic_studies
País/Región como asunto:
Europa
Idioma:
En
Revista:
Radiat Prot Dosimetry
Año:
2007
Tipo del documento:
Article