Published November 2013 | Version v1
Journal article Metadata-only

Performance study of the PTFE-THGEM at room and low temperature

Creators

  • 1. Department of Engineering Physics, Tsinghua University, Beijing (China)
  • 2. Key Laboratory of Particle and Radiation Imaging (Tsinghua University), Ministry of Education, Beijing (China)

Description

GPM based on THGEM has shown its competitive strength compared to the conventional PMT, especially in the low background research such as dark matter detection. A kind of THGEM made from PTFE, named PTFE-THGEM, is developed for the GPM to be used in CDEX. The PTFE has a lot of advantages especially its low level radioactivity. The PTFE-THGEM was tested at room and cryogenic temperature. It has a high gain in different gases and shows good stability at room temperature. The gain of a single PTFE-THGEM reached 112 at 117 K. The penning effect is also discussed in this paper to explain the 'abnormal' phenomena of the gain in different gases. (authors)

Availability note (English)

Available from DOI: http://dx.doi.org/10.1088/1674-1137/37/11/116001

Additional details

Identifiers

DOI
10.1088/1674-1137/37/11/116001;

Publishing Information

Journal Title
Chinese Physics. C, High Energy Physics and Nuclear Physics
Journal Volume
37
Journal Issue
11
Journal Page Range
[5 p.]
ISSN
1674-1137

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
47035945
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
COMPARATIVE EVALUATIONS; DETECTION; ELECTRON MULTIPLIERS; GAIN; GASES; NONLUMINOUS MATTER; PENNING EFFECT; PERFORMANCE; PHOTOMULTIPLIERS; POLYTETRAFLUOROETHYLENE; RADIOACTIVITY; STABILITY; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
AMPLIFICATION; ELECTRON TUBES; EVALUATION; FLUIDS; FLUORINATED ALIPHATIC HYDROCARBONS; HALOGENATED ALIPHATIC HYDROCARBONS; MATTER; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; PHOTOTUBES; POLYETHYLENES; POLYMERS; POLYOLEFINS; TEMPERATURE RANGE

Optional Information

Notes
10 figs., 1 tabs., 10 refs.; This record replaces 46127672