The Focusing DIRC - the First RICH Detector toCorrect the Chromatic Error by Timing, and the Development of a New TOFDetector Concept

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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 ... continued below

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8 pages

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Va'vra, Jaroslav; Benitez, Jorge A.; Leith, David W.G.S.; Mazaheri, Gholamali; Ratcliff, Blair N.; Schwiening, Jochen et al. September 12, 2007.

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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.

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8 pages

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  • Journal Name: Nuclear Instrumentation and Methods (NIM); Conference: Presented at 11th Vienna Conference on Instrumentation (VCI 2007), Vienna, Austria, 19-24 Feb 2007

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  • Report No.: SLAC-PUB-12803
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 915360
  • Archival Resource Key: ark:/67531/metadc881578

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  • September 12, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 28, 2016, 4:40 p.m.

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Va'vra, Jaroslav; Benitez, Jorge A.; Leith, David W.G.S.; Mazaheri, Gholamali; Ratcliff, Blair N.; Schwiening, Jochen et al. The Focusing DIRC - the First RICH Detector toCorrect the Chromatic Error by Timing, and the Development of a New TOFDetector Concept, article, September 12, 2007; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc881578/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.