The Focusing DIRC - the First RICH Detector toCorrect the Chromatic Error by Timing, and the Development of a New TOFDetector Concept
We have built and successfully tested a novel particle identification detector called Focusing DIRC. The prototype's concept is based on the BaBar DIRC with several important improvements: (a) much faster pixilated photon detectors based on Burle MCP-PMT and Hamamatsu MaPMT, (b) mirror allowing to make the photon detector smaller and less sensitive to background in future applications, (c) electronics allowing to measure the single photon resolution to better than {sigma} {approx} 100-200ps, which allows a correction of the chromatic error. While testing the timing resolution limits of a 64-pixel MCP-PMT with 10 mm MCP holes, we have achieved a timing resolution of {sigma} {approx} 30ps with single photoelectrons. In this paper we further investigate limits of the timing resolution with this particular detector.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 915360
- Report Number(s):
- SLAC-PUB-12803; TRN: US0804964
- Journal Information:
- Nuclear Instrumentation and Methods (NIM), Conference: Presented at 11th Vienna Conference on Instrumentation (VCI 2007), Vienna, Austria, 19-24 Feb 2007
- Country of Publication:
- United States
- Language:
- English
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