High Resolution Cherenkov Detectors for Use in a Cosmic Ray Isotope Spectrometer
Abstract
We describe the development of new high-resolution Cerenkov detectors for use in an instrument designed to measure the isotopic composition of cosmic ray nuclei from Be to Ni (Z = 4 to 28). The latest version of this balloon-borne instrument contains two new large-area, (-0.5 m^2) Cerenkov detectors, one composed of Teflon and a second of Pilot- 425. Through the use of improved light-collection techniques, and a novel radiator design, the photoelectron yield of these counters has been upgraded significantly over that of earlier counters. In particular, the greatly improved Cerenkov light yield achieved with Teflon makes it an attractive alternative to available liquid counters of similar index of refraction. Laboratory tests of these and other Cerenkov radiators are described, along with estimates of the mass resolution that can be achieved.
Additional Information
© INR. Provided by the NASA Astrophysics Data System. We are grateful to E. C. Stone for important contributions to this work. We also thank N, Vogt for help in the Cerenkov counter fabrication and testing. Supported in part by NASA under grants NGR 05-002-160 at Caltech and NGR 30-002-052 at UNH.Attached Files
Published - 1987-16.pdf
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Additional details
- Eprint ID
- 45715
- Resolver ID
- CaltechAUTHORS:20140513-103520046
- NASA
- NGR 05-002-160
- NASA
- NGR 30-002-052
- Created
-
2014-05-13Created from EPrint's datestamp field
- Updated
-
2020-03-09Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1987-16