Organ absorbed dose estimation reflecting specific organ masses with simple scaling of reference doses using the organ masses

Manabe, Kentaro; Koyama, Shuji*

Radiation Protection Dosimetry, 189(4), p.489 - 496, 2020/05

AA2019-0343.pdf:0.67MB

https://doi.org/10.1093/rpd/ncaa058

It is important for radiation protection in diagnostic nuclear medicine to estimate organ absorbed doses in consideration of person-specific parameters. This study proposes a straightforward method for estimating organ doses which reflect an individual organ masses by scaling the reference doses based on the reference human models using the inverse ratio of the individual masses to the reference organ masses. The method was tested for the administration cases of Tc-labelled colloids and I-labelled sodium iodine to confirm the effectiveness of the method. The discrepancies of the doses estimated by the method were sufficiently small in terms of solid organs.

JAEA's challenges for Fukushima environmental recovery and relevant expectation for National Institute of Technology, Fukushima College

Miyahara, Kaname

no journal, , 

This presentation focuses on challenges for enhancing Fukushima environmental resilience to address the needs for better scientific and technological capabilities to assess, predict, and minimize the impact of radiological contamination and illustrate how to enhance the understanding of radiation and associated risks in the public. These long-term challenges need to involve young researches, therefore this presentation includes comments on relevant expectation for National Institute of Technology, Fukushima College.

JAEA's R&D activities for Fukushima environmental recovery including their application to on-site issues

Miyahara, Kaname

no journal, , 

This presentation focuses on JAEA's R&D for enhancing Fukushima off-site environmental recovery to address the needs for better scientific and technological capabilities to assess, predict, and minimize the impact of radiological contamination and illustrate how to enhance the understanding of radiation and associated risks in the public. Application of methods and technologies obtained by these R&D to on-site issues is also illustrated.