Dose Measurement Precision of an RPLD-Based Eye Lens Dosemeter Applicable to the Medical Sector

Kowatari, Munehiko; Nagamoto, Keisuke; Nakagami, Koichi; Yoshitomi, Hiroshi; Moritake, Takashi; Kunugita, Naoki

doi:10.1093/rpd/ncac167

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…Using previously described eye lens dosimeter clips [3], the GD-352M was mounted on each side of the lead glass and fixed inside and outside the lens (a total of four pieces were placed) (figures 2(a) and (b)). The eye lens dosimeter clips have shown similar measurement accuracy as commercially available dosimeters [29].…”

Section: Methods For Measuring the Occupational Dose To The Eye Lensmentioning

confidence: 90%

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Eye lens dose in spine surgeons during myelography procedures: a dosimetry study

Nagamoto,

Kawachino,

Suetsugu

et al. 2023

J. Radiol. Prot.

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To determine the eye lens dose (3 mm dose equivalent [Hp(3)]) received by spine surgeons during myelography and evaluate the effectiveness of radiation-protective glasses and x-ray tube system positioning in reducing radiation exposure. This study included spine surgeons who performed myelography using over- or under-table x-ray tube systems. Hp(3) was measured for each examination using a radio-photoluminescence glass dosimeter (GD-352M) mounted on radiation-protective glass. This study identified significantly high Hp(3) levels, especially in the right eye lens in spinal surgeons. The median Hp(3) values in the right eye were 524 (391–719) and 58 (42–83) μSv/examination for over- and under-table x-ray tube systems, respectively. Further, Hp(3)AK, which was obtained by dividing the cumulative air kerma from Hp(3), was 8.09 (6.69–10.21) and 5.11 (4.06–6.31) μSv mGy−1 for the over- and under-table x-ray tube systems, respectively. Implementing radiation-protective glasses resulted in dose reduction rates of 54% (50%–57%) and 54% (51%–60%) for the over- and under-table x-ray tube systems, respectively. The use of radiation protection glasses significantly reduced the radiation dose in the eye lens during myelography, with the most effective measures being the combination of using radiation protection glasses and an under-table x-ray tube system.

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Section: Methods For Measuring the Occupational Dose To The Eye Lensmentioning

confidence: 90%

“…The 'conversion factor K from AK to Hp(3)' was implemented as previously described. The coefficient K was determined to be 1.21 [29]. Prior to use, the GD352M was annealed (400 • C, 20 min), followed by measurement of the initial (baseline) values.…”

Section: Methods For Measuring the Occupational Dose To The Eye Lensmentioning

confidence: 99%

Eye lens dose in spine surgeons during myelography procedures: a dosimetry study

Nagamoto,

Kawachino,

Suetsugu

et al. 2023

J. Radiol. Prot.

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Characterization of small radiophotoluminescence dosemeter in terms of H P(0.07) for extremity dose monitoring of medical personnel

Kowatari,

Yoshitomi,

Nagamoto

et al. 2023

Radiation Protection Dosimetry

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An additional extremity monitoring using a ring badge must be appropriately conducted for inhomogeneous exposure around radiation workers’ extremity. Commercially available glass dosemeters are characterized in terms of Hp(0.07) for the application of additional extremity monitoring. A series of experiments demonstrated that the response of the model GD-352M radiophotoluminescence dosemeter fully matched the IEC’s criteria for an extremity dosemeter for medical personnel. Although the model GD-302M has excellent angular dependence, the material and the shape of energy compensation filter still need to be optimized to improve its energy dependence in the range between 30 and 100 keV. The combine use of both types of glass dosemeters for ‘paired dosemeter’ together with introduction of a simple algorithm may be a promising method to improve the response in the energy range below 20 keV.

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Dose Measurement Precision of an RPLD-Based Eye Lens Dosemeter Applicable to the Medical Sector

Cited by 2 publications

References 19 publications

Eye lens dose in spine surgeons during myelography procedures: a dosimetry study

Eye lens dose in spine surgeons during myelography procedures: a dosimetry study

Characterization of small radiophotoluminescence dosemeter in terms of H P(0.07) for extremity dose monitoring of medical personnel

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