TY - JOUR
T1 - Development of a new neutron mirror made of deuterated Diamond-like carbon
AU - Sakurai, Dai
AU - Chiba, Junsei
AU - Ino, Takashi
AU - Kakusho, Nobunori
AU - Kaneko, Naokatsu
AU - Katayama, Ryo
AU - Kitaguchi, Masaaki
AU - Mishima, Kenji
AU - Muto, Suguru
AU - Ozeki, Kazuhide
AU - Seki, Yoshichika
AU - Shimizu, Hirohiko M.
AU - Yamashita, Satoru
AU - Yoshioka, Tamaki
AU - Nishimura, Daiki
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84906258918&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906258918&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/528/1/012010
DO - 10.1088/1742-6596/528/1/012010
M3 - Conference article
AN - SCOPUS:84906258918
SN - 1742-6588
VL - 528
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012010
T2 - International Workshop on Neutron Optics and Detectors, NOP and D 2013
Y2 - 2 July 2013 through 5 July 2013
ER -