Proposal for a New High Precision Particle Detector
THE precision commonly quoted when measuring the position of a charged particle track is ±0.3 mm for wire plane spark chambers1, ±0.4 mm for streamer chambers2 and ±0.7 mm for multiwire proportional chambers3,4. With the onset of the new generation of synchrotrons there is a need for detectors with better resolution. This arises from the fact that the accelerated particles will receive only small deflexions in analysing magnets. This article consists of a proposal for a detector that will provide the necessary increase in resolution.
Study of the characteristics of a gas-discharge counter with a negatively charged wire in the air
Abstract Gas-discharge counters with a negative potential at the thin central electrode are studied. In a counter with thus applied high-voltage, electron avalanches develop in the direction away from the centre in a greatly decreasing electric field. The mechanism for this process and the effect of various factors are described. The counting and amplitude characteristics are given for one of the counters. The geometrically sensitive region and the dependence of its performance on the type of primary ionization is studied. The counter was tested in the air under normal conditions.
Track spark chamber with isotropic properties as a device to study high-energy nuclear interactions
Abstract The results of a study of the regime of operation of a track spark chamber with isotropic properties are given depending on the kind of the gas used and the strength of the electric field. At a field strength of ≈ 14 kV/cm, the dimensions of streamers along the electric field and perpendicular to it are about the same; as a result the track spark chamber becomes a true isotropic device.