Results of the EURADOS international comparison exercise on neutron spectra unfolding in Bonner spheres spectrometry. (April 2022)

• Record Type: Journal Article
• Authors: Gómez-Ros, J.M.; Bedogni, R.; Domingo, C.; Eakins, J.S.; Roberts, N.; Tanner, R.J.
• Is Part Of: Radiation measurements. Volume 153(2021)
• Publication Date: 2022-04
• Subjects: Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2022.106755
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: This paper summarizes the results obtained from an international comparison exercise on neutron spectra unfolding in Bonner spheres spectrometry, organized within the activities of EURADOS working group 6: computational dosimetry. Four realistic situations were considered: a medical accelerator, a workplace field, an irradiation room and a skyshine scenario. The reference solutions are presented, given in terms of idealized fluence-energy distributions and dose rates, along with details of their derivation using verified Monte Carlo codes. The wide variety of unfolded results that were submitted by the participants are then provided, with some shown to agree well with the reference solutions but others showing significant energy-dependent discrepancies. Finally, explanations for some of these discrepancies are proposed, along with suggested methods for how they might be improved. Highlights: Results of an EURADOS comparison on BSS unfolding are summarized and discussed. Four scenarios with different complexity have been considered. Practical recommendations for BSS unfolding are provided.