3 0 0 0 宇宙線ミュオン測定による高炉の炉内検知
- 著者
- 篠竹 昭彦 松崎 眞六 国友 和也 内藤 誠章 橋本 操 圃中 朝夫 長根 利弘 永嶺 謙忠 田中 宏幸
- 出版者
- The Iron and Steel Institute of Japan
- 雑誌
- 鉄と鋼 (ISSN:00211575)
- 巻号頁・発行日
- vol.95, no.10, pp.665-671, 2009
- 被引用文献数
- 1 7
The visualization of the inner state of a blast furnace was investigated by exploiting the feature of cosmic-ray muon that attenuates according to the density and the thickness of the object through which it penetrates. The distribution of the cosmic-ray muon accumulated in an object in a blast furnace during a certain period has been determined by a probing system provided with two sets of a pair of panels with plastic scintillation counters segmented in parallel along each direction of both sides. First, measurement was performed in the furnace hearth structure that had been taken out after the shutdown of Oita No. 2 Blast Furnace repaired in 2004. Next, another measurement was performed in the same manner in the renewed furnace hearth of Oita No. 2 Blast Furnace which had just started working after its repairs. The density of the material at the iron-rich portion inside the hearth was estimated from the accumulation ratio obtained from the relation between the intensity of the muon channel passing through the iron-rich part in the hearth and that passing through its opposite channel symmetric to the coordinate origin. Then, the level of the furnace bottom brick, meaning its eroded thickness, was estimated from those accumulation ratios in relation to each channel crossing both the iron-rich part and the furnace bottom brick. The possibility of the density distribution of the material inside a blast furnace and the remaining thickness of bricks being estimated by this measurement method was identified.
1 0 0 0 OA 超低速ミュオン顕微鏡が拓く物質・生命・素粒子科学のフロンティア総括
- 著者
- 鳥養 映子 三宅 康博 門野 良典 岩崎 雅彦 西田 信彦 秋光 純 杉山 純 永嶺 謙忠 齋藤 直人
- 出版者
- 山梨大学
- 雑誌
- 新学術領域研究(研究領域提案型)
- 巻号頁・発行日
- 2011-04-01
超低速ミュオン顕微鏡は、表面・界面が関与する物理、化学、生命の諸現象の解明から、ミュオン異常磁気能率の精密測定までの広い分野において、研究を飛躍的に発展させる突破口となる。研究期間前半で共通基盤装置を開発し、後半でこれを用いた新たな学術領域の開拓をめざした。加速器施設の事故等による長期ビーム供給停止にもかかわらず、ビーム再開直後の平成28年2月に初の超低速ミュオン発生に成功した。海外実験施設等による予備実験により、磁性、超伝導、半導体、電池材料に加えて、触媒化学や生命科学などこれまで未開拓の分野においても基礎データを蓄積できた。さまざまな分野において、新量子ビームへの期待が高まっている。