Development of a new neutron mirror made of deuterated Diamond-like carbon

Dai Sakurai, Junsei Chiba, Takashi Ino, Nobunori Kakusho, Naokatsu Kaneko, Ryo Katayama, Masaaki Kitaguchi, Kenji Mishima, Suguru Muto, Kazuhide Ozeki, Yoshichika Seki, Hirohiko M. Shimizu, Satoru Yamashita, Tamaki Yoshioka, Daiki Nishimura

研究成果: ジャーナルへの寄稿会議記事査読


We developed a new neutron mirror made of Diamond-like carbon (DLC). DLC is a film of amorphous carbon that has characteristics of both diamond and graphite. We produced DLC mirrors by ionization deposition method which is one of the chemical vapor deposition (CVD). Generally, DLC made by CVD contents a few tens of percentages of hydrogen. It decreases the Fermi potential of the DLC coating because hydrogen has negative Fermi potential. In order to increase the Fermi potential of the coating, we deuterated the DLC by using deuterated benzene for the source gas. The characteristics of the deuterated DLC(DDLC) coating was evaluated by RBS, ERDA, x-ray reflectivity, AFM. As a result, DDLC coating has 243neV due to deuteration, which is the same level as Ni. The RMS of height of the DDLC was 0.6nm so that the DDLC coating can be applied for a focusing mirror or specular transportation of pulsed neutron. Besides, we also develop Hydrogen/Deuterium DLC multiple layer mirror. So far, 4 layers mirror has been succeeded.

ジャーナルJournal of Physics: Conference Series
出版ステータス出版済み - 2014
イベントInternational Workshop on Neutron Optics and Detectors, NOP and D 2013 - Munich, ドイツ
継続期間: 7月 2 20137月 5 2013

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)


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