Published November 15, 1987 | Version v1
Journal article

A test of a planar spark counter of 500 μm spark gap

  • 1. National Lab. for High Energy Physics, Oho, Ibaraki (Japan)
  • 2. Nara Women's Univ. (Japan). Dept. of Physics

Description

A planar spark counter of 500 μm spark gap was tested with cosmic rays. A time resolution of 134 ps was achieved. The test was carried out for several quenching gas pressures. The best performance was obtained at a gas pressure of 4 atm (2.5 atm of argon and 1.5 atm of the quenching gas). The counter efficiency was about 93%. This low pressure permits easy construction of the counter with a thin pressure vessel. Subsequent measurements using 60Co γ-ray sources gave a discharged area of about 5 mm in diameter. (orig.)

Additional details

Publishing Information

Journal Title
Nucl. Instrum. Methods Phys. Res., Sect. A
Journal Volume
261
Journal Issue
3
Series
Nucl. Instrum. Methods Phys. Res., Sect. A.
Journal Page Range
487-492
ISSN
0168-9002
CODEN
NIMAE