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

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

1619

Lastpage

1622

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 Â± 0.08 Â± 0.12% and 40.6Â±0.7Â±2.8%, respectively. The spatial resolutions were measured to be 2.9 Â± 0.1 Â¿m for horizontal direction and 4.4 Â± 0.2 Â¿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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5402255

Filename

5402255