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Journal Articles

Simulations of MATROSHKA experiments outside the ISS using PHITS

Puchalska, M.*; Sihver, L.*; Sato, Tatsuhiko; Berger, T.*; Reitz, G.*

Advances in Space Research, 50(4), p.489 - 495, 2012/08

 Times Cited Count:12 Percentile:68.07(Engineering, Aerospace)

We will present simulations using the three-dimensional Monte Carlo Particle and Heavy Ion Transport code System (PHITS) of long term dose measurements performed with the ESA supported experiment MATROSHKA (MTR), which is an anthropomorphic phantom containing over 6000 radiation detectors, mimicking a human head and torso. The results confirm previous calculations and measurements which indicate that PHITS is a suitable tool for estimations of dose received from cosmic radiation and when performing shielding design studies of spacecraft.

Journal Articles

Simulations of the MATROSHKA experiment at the international space station using PHITS

Sihver, L.*; Sato, Tatsuhiko; Puchalska, M.*; Reitz, G.*

Radiation and Environmental Biophysics, 49(3), p.351 - 357, 2010/08

 Times Cited Count:21 Percentile:59.84(Biology)

In this paper we will present simulations using the three-dimensional Monte Carlo Particle and Heavy Ion Transport code System (PHITS) of long term dose measurements performed with the European Space Agency (ESA) supported experiment MATROSHKA (MTR), which is an anthropomorphic phantom containing over 6000 radiation detectors, mimicking a human head and torso.

Oral presentation

Astronaut dose estimation using the PHITS code in combination with realistic models of the Kibo module and the MATROSHKA phantom

Sato, Tatsuhiko; Nagamatsu, Aiko*; Takeda, Kazuo*; Niita, Koji*; Puchalska, M.*; Sihver, L.*; Reitz, G.*

no journal, , 

Estimation of organ doses and their mean quality factors for astronauts due to cosmic-ray exposure has been an essential issue in the planning of long-term space missions. We therefore performed simulation for calculating the organ doses and their mean quality factors inside the MATROSHKA phantom, using a realistic geometry of the Kibo module in combination with the NUNDO phantom, which was constructed based on the CT image of the phantom. The particle and heavy ion transport code system PHITS was employed in the simulation. From preliminary results, it is found that the calculated organ doses and their mean quality factors inside the MATROSHKA phantom agree with the corresponding experimental data fairly well.

Oral presentation

Space radiation dosimetry in Kibo module, 2; Simulation

Sato, Tatsuhiko; Nagamatsu, Aiko*; Takeda, Kazuo*; Niita, Koji*; Puchalska, M.*; Sihver, L.*

no journal, , 

Estimation of doses for astronauts due to space radiation exposure has been an essential issue in the planning of long-term space missions. For that purpose, we developed a simulation tool for estimating radiation environments as well as doses for astronauts stayed in the Kibo module in ISS. The tool consists of the Particle and Heavy Ion Transport Simulation code, PHITS, in combination with the virtual Kibo module developed by JAXA. The accuracy of the simulation was examined on the basis of the experimental data obtained from the Area PADLES and MATROSHKA-Kibo measurements. It was found from the examination that the calculated doses agree with the measured data fairly well. The results of the examination also suggested that the consideration of the east-west asymmetry is important to reproduce the location-dependence of doses inside the Kibo module.

Oral presentation

Simulation of the radiation environment inside ISS using the PHITS code

Sato, Tatsuhiko; Nagamatsu, Aiko*; Takeda, Kazuo*; Niita, Koji*; Puchalska, M.*; Sihver, L.*

no journal, , 

Estimation of doses for astronauts due to space radiation exposure has been an essential issue in the planning of long-term space missions. For that purpose, we developed a simulation tool for estimating radiation environments as well as doses for astronauts stayed in the Kibo module in ISS. The tool consists of the Particle and Heavy Ion Transport Simulation code, PHITS, in combination with the virtual Kibo module developed by JAXA. The accuracy of the simulation was examined on the basis of the experimental data obtained from the Area PADLES and MATROSHKA-Kibo measurements. It was found from the examination that the calculated doses agree with the measured data fairly well. The results of the examination also suggested that the considerations of the east-west asymmetry and the existence of other modules are important to reproduce the location-dependence of doses inside the Kibo module.

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