Characterisation of neutron fields around high-energy x-ray radiotherapy machines

Number of the records: 1

SYSNO ASEP	0100850
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Characterisation of neutron fields around high-energy x-ray radiotherapy machines
Title	Charakteristiky neutronových polí v okolí radioterapeutických zařízení s vysokoenergetickým zářením X
Author(s)	Králík, M. (CZ) Turek, Karel (UJF-V)_{ORCID, SAI}
Source Title	Radiation Protection Dosimetry. - : Oxford University Press - ISSN 0144-8420 Roč. 110, 1-4 (2004), s. 503-507
Number of pages	5 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	radiotherapy machines ; neutron fields ; high-energy
Subject RIV	DN - Health Impact of the Environment Quality
CEZ	AV0Z1048901 - UJF-V
Annotation	Photoneutron spectra around the treatment bed of a Varian Clinac 2100C machine were measured using a Bonner sphere spectrometer. To overcome problems with pulse pile-up and detection of non-neutron-induced events, the active detector of thermal neutrons normally used at the centre of the spheres was replaced by a sandwich of four CR-39 track detectors interleaved with 10B radiators. Track densities measured for the CR-39 detectors in Bonner spheres were used for the unfolding of neutron spectra. Neutron fluence and ambient dose equivalent for the whole energy range and partial energy intervals were derived from the neutron spectra
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2005

Number of the records: 1