Spark Chamber Suitable for Observation of Multiple Particles
1965 年 20 巻 5 号 p. 685-693
詳細
1965 年 20 巻 5 号 p. 685-693
Characteristics of the spark chamber (490 mm × 490 mm × 20 mm Height) whose electrodes are covered with glass are presented. Constant efficiency in the range of 1 to 1,500 particles/m2 is obtained experimentally, and the possibility of extension to 10,000 particles/m2 is shown. Zenith angle is measured from the projected length of the track from 20° to 90° through electrode. As the efficiencies of the chambers are uniform, and do not decrease during long operation, the extension to large area is very easy and the chamber is useful for cosmic ray study.
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