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Proceedings Paper

Detection Of Short-Lived Particles Using Holography
Author(s): P. Haridas; E. Hafen; I. Pless; J. Harton; S. Dixit; D. Goloskie; S. Benton
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Paper Abstract

Vertex detectors with good spatial resolution are ideal devices for the detection of short-lived particles (mean lifetime > 10-13 seconds, mean distance traveled before decay z 140 pm) produced in high energy interactions. The bubble chamber equipped with high resolution photography is one such vertex detector. However, improving the resolution in photography results in a very rapid decrease of the depth of field, thereby rendering most of the chamber optically inaccessible. Using holography instead of photography remedies this problem by decoupling resolution and depth of field. This paper reports on our recent work in the use of a two beam holographic technique for a large freon bubble chamber (80 cm diameter and 100 cm deep). This bubble chamber is the vertex detector for a hybrid spectrometer system that would be used for two of our forthcoming experiments at the Fermi National Accelerator Laboratory: the first to search for the short-lived charm particles, and the second to establish the existence of the T neutrino by observing the decay of the T lepton. We demonstrate that a 30 pm resolution could be achieved throughout the entire volume of the chamber. Specific details pertinent to achieving this resolution are also discussed. We also report on the construction of a semiautomated high-precision measuring apparatus that would be used to scan and measure bubble chamber holograms.

Paper Details

Date Published: 12 June 1985
PDF: 9 pages
Proc. SPIE 0523, Applications of Holography, (12 June 1985); doi: 10.1117/12.946274
Show Author Affiliations
P. Haridas, Massachusetts Institute of Technology (United States)
E. Hafen, Massachusetts Institute of Technology (United States)
I. Pless, Massachusetts Institute of Technology (United States)
J. Harton, Massachusetts Institute of Technology (United States)
S. Dixit, Massachusetts Institute of Technology (United States)
D. Goloskie, Massachusetts Institute of Technology (United States)
S. Benton, Polaroid Corporation and Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0523:
Applications of Holography
Lloyd Huff, Editor(s)

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