Published August 2005 | Version v1
Journal article Metadata-only

Beam test of the time resolution of the BES III Endcap TOF

Creators

  • 1. China Science and Technology Univ., Hefei (China). Dept. of Modern Physics
  • 2. Chinese Academy of Sciences, Beijing (China). Inst. of High Energy Physics

Description

The Endcap TOF (ETOF) of Beijing Spectrometer (BES III) consists of 2 x 48 pieces of trapezoidal scintillator (BC408). Its main physics goal is to reach the intrinsic time resolution of 80 ps and to realize the 2σ π/k separation at momentum up to 1 GeV/c. In this paper, the performance of one ETOF module under different conditions, such as with different packing material, operating voltage and shape of scintillator, is tested by the beam of 800 MeV electrons at IHEP. The primary results show that the intrinsic time resolution of ETOF with Tyvek paper wrapping is between 70-90 ps. (authors)

Additional details

Publishing Information

Journal Title
High Energy Physics and Nuclear Physics
Journal Volume
29
Journal Issue
8
Journal Page Range
p. 775-780
ISSN
0254-3052

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
37082179
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
BEIJING ELECTRON-POSITRON COLLIDER; ELECTRON BEAMS; MAGNETIC SPECTROMETERS; MEV RANGE 100-1000; PERFORMANCE TESTING; PHOSPHORS; TIME RESOLUTION; TIME-OF-FLIGHT SPECTROMETERS
Descriptors DEC
ACCELERATORS; BEAMS; ENERGY RANGE; LEPTON BEAMS; LINEAR ACCELERATORS; MEASURING INSTRUMENTS; MEV RANGE; PARTICLE BEAMS; RESOLUTION; SPECTROMETERS; STORAGE RINGS; TESTING; TIMING PROPERTIES

Optional Information

Notes
13 figs., 5 refs.