Development of a micro array type electron multiplier

Author

Kawarabayashi, J. ; Fukuda, D. ; Takahashi, H. ; Iguchi, T. ; Nakazawa, M. ; Takahashi, A. ; Tokue, R. ; Hirata, Y. ; Numazawa, T.

Author_Institution

Dept. of Nucl. Eng., Nagoya Univ., Japan

Volume

45

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

568

Lastpage

571

Abstract

We are currently developing a micro array type electron multiplier which can be used for a two dimensional photomultiplier tube (PMT). This device consists of dynode plates which have many pixels. Keeping its position information, incident electrons are multiplied within each pixel of the array. The micromachining technique was used to fabricate the dynodes of the detector. Slanting hole and pyramid hole structures were investigated as the dynode structure. From the simulation result of these two types, more than 1000 would be obtained as the signal gain factor with 12 dynodes and 200V/dynode. From the experimental results, the electron multiplication factor ~2 of the pyramid type dynode was obtained with 2 dynode stages and 1SOV/dynode. The signal gain factor 4.6 of the slanting hole dynode was obtained with 2 dynode stages and 400V/dynode. These well agree with the simulation results

Keywords

electron multiplier detectors; photomultipliers; position sensitive particle detectors; dynode plates; electron multiplication factor; micro array type electron multiplier; micromachining; pyramid type dynode; signal gain factor; slanting hole dynode; two dimensional photomultiplier tube; Cities and towns; Detectors; Electron emission; Electron multipliers; Electron tubes; Etching; Lithography; Resists; Systems engineering and theory; Voltage;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.682449

Filename

682449