Micromegas and PIM-like with thermo-bond film frame and spacers

Author

Liang Guan ; Xiaolian Wang ; HaoHui Tang ; ZiZong Xu ; Tianchi Zhao

Author_Institution

Univ. of Sci. & Technol. of China, Hefei, China

fYear

2010

fDate

Oct. 30 2010-Nov. 6 2010

Firstpage

1457

Lastpage

1461

Abstract

Attempts are made to construct micromegas and PIM-like detectors by using thermo-bond film as frames and spaces to support the woven micromeshes and to maintain the gas gaps. The unsupported spans of the meshes in prototypes that we tested are 2.5 cm to 4.5 cm. This method of micromegas construction does not require the photolithographic process. Prototype construction and test results of the single avalanche gap micromegas and the double gap Parallel Ionization Multiplier (PIM) are reported. The best energy resolution obtained for 5.9 keV x-ray is 13.7% (FWHM) for Micromegas prototypes. The test results also show it is possible to use woven thick mesh to build PIM with sufficient gain and large component of fast electron signal.

Keywords

ionisation chambers; position sensitive particle detectors; PIM-like detectors; double gap parallel ionization multiplier; energy resolution; fast electron signal; gas gaps; micromegas construction; micromegas prototypes; micromeshes; photolithographic process; single avalanche gap micromegas; thermobond film frame; Anodes; Detectors; Electric fields; Energy resolution; Films; Prototypes; Weaving;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE

Conference_Location

Knoxville, TN

ISSN

1095-7863

Print_ISBN

978-1-4244-9106-3

Type

conf

DOI

10.1109/NSSMIC.2010.5874014

Filename

5874014