A Compartment model of radionuclide migration in environment based on exposure pathways

Kurikami, Hiroshi; Niizato, Tadafumi; Tsuruta, Tadahiko; Kato, Tomoko; Kitamura, Akihiro; Kanno, Mitsuhiro*; Kurosawa, Naohiro*

JAEA-Research 2016-020, 50 Pages, 2017/01

JAEA-Research-2016-020.pdf:6.02MB

In this report, we developed a compartment model of radionuclide migration in environment based on exposure pathways in a river basin scale and performed a preliminary calculation. The results showed good agreement with some measurement, although the comparison of bed sediment, transportation to outer sea and to agricultural products with the measurement was not enough. We continue to validate the model.

A Code for predicting the migration of ground additionals: MOGRA

Amano, Hikaru; Takahashi, Tomoyuki*

Genshiryoku eye, 48(6), p.69 - 73, 2002/06

http://ci.nii.ac.jp/naid/40005192351

no abstracts in English

Improvement of biosphere model for performance assessment of geological disposal system (III)

Ikeda, Takao*; Yoshida, Hideji*; Miki, Takahito*

JNC TJ8400 2000-046, 264 Pages, 2000/02

JNC-TJ8400-2000-046.pdf:6.73MB

This report contains discussions about methodology for the selection of parameter values, stochastic approach for the biosphere assessment and biosphere modelling for marine discharge case are described. Regarding the methodology for the selection of parameter values, important aspects for the data selection were discussed, and data selection protocol was developed. Regarding the stochastic approach for the biosphere assessment, it is confirmed that Straightforward Monte Carlo Method and Latin Hypercube Sampling Method are the most adequate based on a literature survey. Then stochastic assessment by using biosphere model that was developed in the second progress report was carried out to check the sensitivity of parameter values. Finally, availability of several kind of assessment models for marine discharge case were discussed. It was confirmed that Multiple Compartment Model was the most applicable. Assessment using Multiple Compartment Model was carried out. The results were compared with those derived by numerical model. As a result, the difference between two models were small enough.

Validation on dose assessment model of external exposure by using the monitoring data on the concentration of Cs in the surface soil around the Chernobyl Nuclear Power Plant

Takahashi, Tomoyuki; Homma, Toshimitsu

Hoken Butsuri, 34(4), p.365 - 374, 1999/12

https://doi.org/10.5453/jhps.34.365

no abstracts in English

A Generic analysis code of dynamic compartment model for evaluation of doses in terrestrial biosphere: GACOM user's manual

Takahashi, Tomoyuki

JAERI-Data/Code 98-003, 74 Pages, 1998/02

JAERI-Data-Code-98-003.pdf:2.79MB

no abstracts in English

None

PNC TJ1409 93-010, 95 Pages, 1993/05

PNC-TJ1409-93-010.pdf:4.9MB

no abstracts in English

Development and application of a compartment model for environmental fate of radioactive materials released from nuclear accidents

Kurikami, Hiroshi; Niizato, Tadafumi; Tsuruta, Tadahiko; Kato, Tomoko; Kitamura, Akihiro; Kanno, Mitsuhiro*; Kurosawa, Naohiro*

no journal, , 

To understand environmental fate of radioactive materials released from nuclear accidents is important for recovery measures. We have developed a compartment model including all important compartments and processes to describe environmental fate of radioactive materials and have applied to the Fukushima environment. The results showed a good agreement with field investigations.

Evaluation of transfer coefficients for prediction models on ambient dose equivalent rates

Kinase, Sakae

no journal, , 

no abstracts in English

External dose reconstruction in the early phase of the Fukushima Daiichi Nuclear Power Plant accident using 2-compartment model

Honda, Fumiya*; Kinase, Sakae

no journal, , 

no abstracts in English