Active Methods &amp; Instruments for Personal Dosimetry of External Radiation: Present Situation in Europe and Future Needs

Bolognese-Milsztajn, T.; Ginjaume, M.; Vanhavere, F.

doi:10.1051/978-2-7598-0117-6.c008

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…In the case of neutrons, the accuracy limitations of rem-meters, passive and active dosimeters are well known as all these technologies have dosimetric responses that depart from unity over significant portions of the thermal to 20 MeV energy range (Cosak and Lesiecki 1985, Luszik-Bhadra et al 2002, Bolognese-Milsztajn 2004, Berthold 2021. For that radiation type, source term measurements may be the most accurate method for the determination of the lens of the eye dose.…”

Section: Photon Beta and Neutron Spectrometrymentioning

confidence: 99%

Current status of eye-lens dosimetry in Canada

Dubeau¹,

Sun²,

Djeffal³

et al. 2022

J. Radiol. Prot.

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For occupational exposures in planned exposure situations International Commission on Radiological Protection (ICRP) publication 118 recommends an equivalent dose limit for the lens of the eye of 20 mSv yr−1 averaged over five years with no single year exceeding 50 mSv. This constitutes a reduction from the previous limit of 150 mSv yr−1. The Canadian nuclear regulator, the Canadian Nuclear Safety Commission, responded to the ICRP recommendation by initiating amendments to the Radiation Protection Regulations through a discussion paper which was published for comment by interested stakeholders in 2013. The revised equivalent dose limit of 50 mSv in a one-year dosimetry period for nuclear energy workers came into effect in January 2021. This paper presents the outcome of discussions with Canadian stakeholders in diverse fields of radiological work which focused on the implementation of the reduced occupational equivalent dose limit for the lens of the eye in their respective workplaces. These exchanges highlighted the existing practices for monitoring doses to the lens of the eye and identified current technological gaps. The exchanges also identified that, in many cases, the lens of the eye dose is anticipated to be well within the new dose limit despite some of the gaps in technology. The paper also presents the monitoring and eye-lens dose assessment solutions that are available based on different methods for eye-lens monitoring; presented together with criteria for their use.

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Section: Photon Beta and Neutron Spectrometrymentioning

confidence: 99%

Current status of eye-lens dosimetry in Canada

Dubeau¹,

Sun²,

Djeffal³

et al. 2022

J. Radiol. Prot.

View full text Add to dashboard Cite

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Effect of Using Different Data Libraries and Simulation Codes on the Calculation of Spectra and Operational Quantities for the D₂O-²⁵²Cf Source at PTB

et al. 2022

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The neutron reference field produced by a heavy-water moderated 252Cf source is used at PTB for calibrating neutron-measuring devices. Knowledge of the precise neutron spectrum is very important for the investigation of operational radiation protection quantities. Recently, new fission spectrum data of 252Cf has been proposed based on the latest nuclear data library version. At PTB, earlier calculations for the D2O moderated 252Cf neutron source were carried out more than 20 years ago, thus updated and more detailed calculations are required. In this paper, a detailed simulation model of the PTB moderated 252Cf source assembly has been prepared and investigated using new spectral data and two different Monte Carlo transport codes MCNP6.1 and PHITS3.22, with ENDF/BVIII.0, ENDF/B-VII.1, ENDF/B-V, and ENDL85 evaluated nuclear data libraries. The results show that the evaluated nuclear data libraries influence the calculated operational quantities by (3-5) %. The dosimetric quantities calculated with the PHITS code and the ENDF/B-VII.1 data library agree well with the MCNP6 results.

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Active Methods & Instruments for Personal Dosimetry of External Radiation: Present Situation in Europe and Future Needs

Cited by 2 publications

References 14 publications

Current status of eye-lens dosimetry in Canada

Current status of eye-lens dosimetry in Canada

Effect of Using Different Data Libraries and Simulation Codes on the Calculation of Spectra and Operational Quantities for the D₂O-²⁵²Cf Source at PTB

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Active Methods & Instruments for Personal Dosimetry of External Radiation: Present Situation in Europe and Future Needs

Cited by 2 publications

References 14 publications

Current status of eye-lens dosimetry in Canada

Current status of eye-lens dosimetry in Canada

Effect of Using Different Data Libraries and Simulation Codes on the Calculation of Spectra and Operational Quantities for the D2O-252Cf Source at PTB

Contact Info

Product

Resources

About

Effect of Using Different Data Libraries and Simulation Codes on the Calculation of Spectra and Operational Quantities for the D₂O-²⁵²Cf Source at PTB