Experiment

Matroshka-Kibo Experiment Completed

* All times are Japan Standard Time (JST)

Space radiation measurement of the Kibo module using the Matryoshka facility, which has jointly been performed by Russia, ESA and JAXA since May 2010, was completed on March 11, 2011.

On March 10, an ISS Expedition 27 flight engineer Paolo Nespoli removed the Matryoshka facility deployed in the Kibo, and stored it in the Zvezda Russian Service module. In the early morning of March 11, all the dosimeters (provided by 18 organizations from 9 countries) installed in the Mattyoshka phantom were removed from the body.

Those dosimeters were returned to the ground aboard the Soyuz TMA-01M spacecraft (24S) on March 16, 2011.

Twenty five PADLES dosimeters were installed in the Matryoshka phantom. They were returned to the Tsukuba Space Center (TKSC). They are being analyzed in the laboratory at TKSC.

ESA Astronaut Paolo Nespoli removing and transferring the Matryoshka phantom deployed in Kibo

All the dosimeters were removed from the Matryoshka phantom

*All times are Japan Standard Time (JST)