| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9844970 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2005 | 11 Pages |
Abstract
We report progress in developing a focusing DIRC with very good timing resolution. This basic detector development has been motivated by a possible upgrade of the very successful BaBar DIRC particle identification detector for a future Super B-factory. We have built a single bar full size prototype, which aims to reduce the chromatic error by precise timing, and to remove the effect of bar thickness with a focusing mirror. This paper describes the design of the prototype, and systematic studies of the timing resolution and position response for single photons for two 64-pixel detectors: (a) Hamamatsu Flat Panel PMTs, and (b) Burle MCP-PMTs. To test the prototype, we have developed new electronics for â¼300 pixels capable of measuring a single electron timing resolution to â¼100Â ps. We also report on a first measurement of aging with the MCP-PMT.
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Physical Sciences and Engineering
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Instrumentation
Authors
C. Field, T. Hadig, David W.G.S. Leith, G. Mazaheri, B. Ratcliff, J. Schwiening, J. Uher, J. Va'vra,