Report of IRPA task group on issues and actions taken in response to the change in eye lens dose limit

Cantone, M.C.; Ginjaume, M.; Martin, C J; Hamada, Nobuyuki; Yokoyama, Sumi; Bordy, Jean-Marc; Dauer, Lawrence T.; Durán, Ana C.; Jeffries, Cameron; Harris, Willie; Kashirina, Olga; Koteng, Arthur Omondi; Michelin, Severino; Sudchai, Waraporn

doi:10.1088/1361-6498/abb5ec

Cited by 8 publications

(11 citation statements)

References 44 publications

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“…The surveys were launched in 2012, 2015 and 2018. [2][3][4][5][6] The documents reporting the results of the surveys and the IRPA guidance on implementation of eye dose monitoring and eye protection of workers, are all available in the IRPA web site (https://irpa.net) at the page dedicated to the topic lens of the eye. The evolution of the answers illustrates the progress in the implementation of the new limit.…”

Section: Forewordmentioning

confidence: 99%

The Trend of View of IRPA Professionals on Implications of Implementation of Dose Limits to the Eye Lens

Cantone

Ginjaume

2021

Jpn. J. Health Phys.

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Section: Forewordmentioning

confidence: 99%

The Trend of View of IRPA Professionals on Implications of Implementation of Dose Limits to the Eye Lens

Cantone

Ginjaume

2021

Jpn. J. Health Phys.

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“…12) We also answered about the current situation and regulations related to radiation protection of the lens in Japan to questionnaires of the IRPA TG and cooperated in compiling the answers from the member countries. 13) In addition, as mentioned above, we cooperated with the NRA research projects from 2017 to 2019. 6,14,15)…”

Section: Contributions Of the Jhpsmentioning

confidence: 99%

The Japan Health Physics Society Guideline on Dose Monitoring for the Lens of the Eye

Committee¹

2021

Jpn. J. Health Phys.

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“…If a monitored radiation field is established (i.e., uniform), the H p (3) can also be estimated from passive dosimeter measurements based on empirical data from H p (3)/H p (10). [10][11][12] However, the nuclear medicine environment comprises mixed radiation fields derived from multiple sources and various amounts of energy emitted due to administering patients with radionuclide tracers. 13 The dose equivalent according to depth H p (d) is energy dependent.…”

Section: Introductionmentioning

confidence: 99%

Determination of a reliable assessment for occupational eye lens dose in nuclear medicine

Miyaji

Miwa

Iimori

et al. 2022

J Applied Clin Med Phys

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The most recent statement published by the International Commission on Radiological Protection describes a reduction in the maximum allowable occupational eye lens dose from 150 to 20 mSv/year (averaged over 5-year periods). Exposing the eye lens to radiation is a concern for nuclear medicine staff who handle radionuclide tracers with various levels of photon energy. This study aimed to define the optimal dosimeter and means of measuring the amount of exposure to which the eye lens is exposed during a routine nuclear medicine practice. A RANDO human phantom attached to Glass Badge and Luminess Badge for body or neck, DOSIRIS and VISION for eyes, and nanoDot for body, neck, and eyes was exposed to 99m Tc, 123 I, and 18 F radionuclides. Sealed syringe sources of each radionuclide were positioned 30 cm from the abdomen of the phantom. Estimated exposure based on measurement conditions (i.e., air kerma rate constants, conversion coefficient, distance, activity, and exposure time) was compared measured dose equivalent of each dosimeter. Differences in body, neck, and eye lens dosimeters were statistically analyzed. The 10-mm dose equivalent significantly differed between the Glass Badge and Luminess Badge for the neck, but these were almost equivalent at the body. The 0.07-mm dose equivalent for the nanoDot dosimeters was greatly overestimated compared to the estimated exposure of 99m Tc and 123 I radionuclides. Measured dose equivalents of exposure significantly differed between the body and eye lens dosimeters with respect to 18 F. Although accurately measuring radiation exposure to the eye lenses of nuclear medicine staff is conventionally monitored using dosimeters worn on the chest or abdomen, eye lens dosimeters that provide a 3-mm dose equivalent near the eye would be a more reliable means of assessing radiation doses in the mixed radiation environment of nuclear medicine.

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Report of IRPA task group on issues and actions taken in response to the change in eye lens dose limit

Cited by 8 publications

References 44 publications

The Trend of View of IRPA Professionals on Implications of Implementation of Dose Limits to the Eye Lens

The Trend of View of IRPA Professionals on Implications of Implementation of Dose Limits to the Eye Lens

The Japan Health Physics Society Guideline on Dose Monitoring for the Lens of the Eye

Determination of a reliable assessment for occupational eye lens dose in nuclear medicine

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