Induktive Ortung von Funken in einer Funkenkammer

Abstract

A spark chamber is described, for use of particle-path location in a magnetic spectrometer. The spark is localized electronically by inducing pulses in wire windings with co-ordinate-depending amplitudes. The method was proved in a spark chamber with 15 × 15 cm2 electrodes of stainless steel meshes, with 13 wires per mm, 0.036 mm thick. A nearly linear slope for the calibration curve has been obtained with artificial sparks. Sparks at the same spot gave a pulse-height distribution with a half-width corresponding to 0.2—0.3 mm and a total spread of 0.4—0.7 mm. Results obtained with a Ce144 β source showed, that a similar behaviour can be expected for natural sparks. This method renders possible a simple and compact set-up, without any restriction in respect to the material used for the electrodes of the chamber.