@misc{oai:repo.qst.go.jp:00069142,
 author = {Sorimachi, Atsuyuki and Tokonami, Shinji and Takahashi, Hiroyuki and Kobayashi, Yosuke and 反町 篤行 and 床次 眞司 and 小林 羊佐},
 month = {Oct},
 note = {8th international symposium on the natural radiation environment},
 title = {Performance of NIRS thoron chamber system},
 year = {2007}
}