| Title |
Principal Investigator |
Outline of the experiment |
| Realtime space radiation monitoring |
Tadayoshi Doke (Waseda University) |
By using Realtime Radiation Monitoring Device (RRMD) practically
whole range of LET (Linear Energy Transfer) distribution of in coming charged
particles will be measured in real-time to evaluate the dose equivalent
in a precise manner. |
| Realtime data exchange experiment of Space Radiation Environment data |
Fumihiko Tomita (Communication Research Laboratory) |
By exchanging solar and space environment observation data
with the RRMD acquired data in a semi-realtime manner, and also by performing
total analysis of those data, the investigator will test and evaluate software
for forecasting space radiation environment fluctuation and will accumulate
data for future operation. |
| Radiation dose monitoring with human body equivalent
materials |
Kazunobu Fujitaka (National Institute of Radiological
Sciences) |
Dosimeters will be set to the several locations of internal
organs in the human body phantom developed by NASA, and in the Space Shuttle,
the radiation dose distributions inside human body will be monitored. The
data acquired will be analyzed to estimate the space radiation risk of
astronauts and its evaluation method. |
| Research on the effect of space environment
against DNA recovery |
Yasuhiko Kobayashi(Japan Atomic Energy Research Institute) |
The experiment conducted in the International Microgravity
Laboratory 2 (IML-2) indicated that in the apace environment the recovery
of D.Radiodurans iradiation resistant bacteriajfrom pre-irradiated radiation
damage is enhanced than on the ground. Although the experiment was repeated
on the STS-79 to confirm this phenomenon the space operation was not performed
as designed, and provided insufficient results. This is the third trial
to reconfirm the unique phenomenon by using same specimens and reproducing
procedures and conditions. |
| Effect of microgravity on damaged DNA recovery |
Takeo Ohnishi (Nara Medical University) |
Damages caused by radiation on DNA are
recovered quickly by repair enzymes. However, it has been suggested that
in space, microgravity environment could affect the processes of such enzyme
reactions. This experiment will investigate how the microgravity environment
affects the repair reaction process to polymerize DNA with artificially
synthesized double strand breaks. |
