Polarization-analyzed resonant inelastic X-ray scattering of the orbital excitations in KCuF

Ishii, Kenji; Ishihara, Sumio*; Murakami, Yoichi*; Ikeuchi, Kazuhiko*; Kuzushita, Kaori*; Inami, Toshiya; Owada, Kenji; Yoshida, Masahiro; Jarrige, I.; Tatami, Naka*; et al.

Physical Review B, 83(24), p.241101_1 - 241101_4, 2011/06

https://doi.org/10.1103/PhysRevB.83.241101

Tanpopo project; Survival of microbes in outer space

Yokobori, Shinichi*; Kawaguchi, Yuko*; Yang, Y.*; Kawashiri, Narutoshi*; Shiraishi, Keisuke*; Shimizu, Yasuyuki*; Takahashi, Yuta*; Sugino, Tomohiro*; Narumi, Issei; Sato, Katsuya; et al.

no journal, , 

no abstracts in English

Current status of preparation of TANPOPO mission (astrobiology exposure and micrometeoroid capture experiments) and investigation of survivability of microbes in space

Yokobori, Shinichi*; Kawaguchi, Yuko*; Shimizu, Yasuyuki*; Kawashiri, Narutoshi*; Shiraishi, Keisuke*; Sugino, Tomohiro*; Takahashi, Yuta*; Yang, Y.*; Tanigawa, Yoshiaki*; Hashimoto, Hirofumi*; et al.

no journal, , 

no abstracts in English

Contribution of fungal hyphal elongation to radiocesium transfer in deciduous broad-leaved litter

Sasaki, Yoshito; Niizato, Tadafumi; Amamiya, Hiroki*; Yoshida, Kaori

no journal, , 

Radiocesium deposited in the forest released by the accident at the Fukushima Daiichi Nuclear Power Station would remain in the forest and part of it would circulate due to the small amount of outflow from the forest. One possible source of dissolved radiocesium that is easily taken up by organisms is the litter layer. To clarify the contribution of fungal mycelial elongation in the transfer of radiocesium in the litter layer, we investigated the effect of the presence of fungi on the transfer of radiocesium from litter Cs(H) with high radiocesium concentration to litter Cs(L) with low radiocesium concentration. Fungal growth was observed in the test plots where the fungi were present. Regardless of with or without fungi, the Cs-137 concentration of Cs(L) reached about 50 Bq/kg on the 50th day, and then gradually increased to about 100 Bq/kg on the 150th day. This result suggested that the radiocesium was transferred by a physical force other than the hyphal elongation of the fungus in the litter layer.

Estimation of radiocesium transfer from the canopy to the forest floor in Japanese konara oak stands of the Abukuma Mountains, Fukushima

Niizato, Tadafumi; Sasaki, Yoshito; Amamiya, Hiroki*; Yoshida, Kaori*; Kimiyama, Kazuhiro*

no journal, , 

Of the radioactive materials released from the TEPCO's Fukushima Daiichi NPP accident, it is necessary to monitor Cs-137 distribution and effects over the long term because of its long half-life of approximately 30 years. In this study, monitoring of Cs-137 transfer from the forest canopy to the forest floor in the forested mountainous area were carried out in several forest areas in the Abukuma Mountains of Fukushima Prefecture, where the geographical conditions such as rainfall, tree density and tree species are almost the same. The results indicated that the amount of Cs-137 transfer by litterfall, stemflow and rainfall in the forests differ in each forested area, depending on the initial deposition and chemical form of Cs-137 in the forest.