RESULTS
For MTR-2B, the phantom from previous Matroshka experiments was used once more, but fitted
with a fresh set of passive detectors. The average dose rate recorded in the Zvezda Docking
Compartment (MTR-2B) was about 40% lower than the dose rate measured earlier in the Pirs
Service Module (MTR-2A). The difference was attributed to higher shielding levels in Zvezda.
These findings are in line with additional ISS research.
PUBLICATION(S)
Berger T, Bilski P, Hajek M, Puchalska M, Reitz G. The MATROSHKA experiment: Results and
comparison from extravehicular activity (MTR-1) and intravehicular activity (MTR-2A/2B)
exposure. Radiation Research. November 19, 2013;180(6):622-637. doi: 10.1667/RR13148.1.
Beck P, Zechner A, Rollet S, et al. MATSIM: Development of a voxel model of the MATROSHKA
astronaut dosimetric phantom. IEEE Transactions on Nuclear Science. 2011;58(4):1921-1926. doi:
10.1109/TNS.2011.2157704.
Reitz G, Berger T, Sundblad P, Dettmann J. Reducing radiation risk in space: The MATROSHKA
project. ESA Bull. 2010;141:28-36.
This investigation is complete and all results are published.
Cosmonaut Yury Lonchakov works
with the European Matroshka
Phantom experiment in the Zvezda
Service Module of the International
Space Station. Matroshka, the name
for the traditional Russian set of
nestling dolls, is an antroph-
amorphous model of a human torso
designed for radiation studies. NASA
image