Title :
A CCD-based pixel detector with micron spatial resolution for ultra cold neutrons
Author :
Ichikawa, Go ; Kawasaki, Shinsuke ; Komamiya, Sachio ; Kamiya, Yoshio ; Sanuki, Tomoyuki ; Shimizu, Hirohiko M. ; Hino, Masahiro ; Kitaguchi, Masaaki
Author_Institution :
Grad. Sch. of Sci., Univ. of Tokyo, Tokyo, Japan
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
We have developed a pixel detector for ultra-cold neutrons using a commercial CCD. In order to detect neutrons, a thin neutron converting layer is directly formed on the CCD surface. The detection efficiencies for cold, very-cold and ultra-cold neutrons are measured to be 1.7%, 4.05 ± 0.08 ± 0.12% and 40.6±0.7±2.8%, respectively. The spatial resolutions were measured to be 2.9 ± 0.1 ¿m for horizontal direction and 4.4 ± 0.2 ¿m for vertical direction. The vertical and horizontal directions are determined by the charge transfer mechanism of CCDs. The details of the pixel detector and its performance tests are described.
Keywords :
charge exchange; charge-coupled devices; neutron detection; position sensitive particle detectors; semiconductor counters; CCD based pixel detector; CCD charge transfer mechanism; neutron converting layer; ultracold neutrons; very cold neutrons; Charge coupled devices; Charge transfer; Charge-coupled image sensors; Detectors; Gravity; Inductors; Neutrons; Nuclear and plasma sciences; Spatial resolution; Testing; Charge coupled devices; Neutron detectors; Neutrons;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402255
