Particle Velocity Measurements Made by Observing Cerenkov Ring Images with Image Intensifiers
- 1 June 1966
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 13 (3), 399-406
- https://doi.org/10.1109/tns.1966.4324125
Abstract
Ring images produced by a lens from Crenkov radiation have been observed by using an image-intensifier system. As a result of the passage of a single fast particle through the Cerenkov radiator, a photograph of the output of the system shows a ring image defined by some 12 to 26 spots, the precise number varying according to the conditions. The calculated number, and distribution in number, of spots is shown to be in agreement with the experimental results. A least squares method is used to fit a circle to the set of points defining a ring. The precision in fitting is such as to give a standard deviation in measurement of particle velocityß(= v/c) of 2 x 10-4 and in measurement of particle direction of ~5 milliradians. The least squares method used is of an unorthodox nature and its performance is checked by a simulation programme in which points representing a ring are generated by a computer. It is found that the accuracy in determining ring radius for the experimental rings is similar to that for the computer-simulated ones.Keywords
This publication has 5 references indexed in Scilit:
- An Image Intensifier System for the Observation of Nuclear EventsIEEE Transactions on Nuclear Science, 1964
- Photography of Čerenkov rings produced by single particles in a gasNuclear Instruments and Methods, 1963
- Cherenkov rings from single particles observed with a high-gain image intensifier systemNuclear Instruments and Methods, 1963
- The detection of Vavilov-Cherenkov radiation cone from high-energy single particlesNuclear Instruments and Methods, 1963
- Čerenkov Detector Accurately Measuring Velocity and Direction over a Wide RangeReview of Scientific Instruments, 1960