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Report No.

A Ceramic-insulated ball-anode element for two-dimensional neutron detector

To, Kentaro; Nakamura, Tatsuya; Sakasai, Kaoru; Yamagishi, Hideshi*

A ceramic-insulated ball-anode (CiB) element that consists of a ceramic insulator, cathode lines, ball-shaped anodes, and anode lines was developed, and an irradiation experiment was performed using a Cf-252 neutron source. An electric field simulation of CiB element was conducted and strong electric fields of more than 10$$^{7}$$ V/m was obtained by the calculation using the finite element method. The neutron-induced signals of all pixels were observed using 8 $$times$$ 8 pixel small-sized test element under Cf-252 neutron irradiation.



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