Test on 2,000 photomultipliers for the CDF endplug calorimeter upgrade

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Description

A systematic test of various characteristics, such as gain, dark current, maximum peak current, stability and relative quantum efficiency, has been made to evaluate about 2,000 photomultiplier tubes for the upgraded CDF Endplug calorimeters. The phototubes are Hamamatsu R4125,19mm diameter with green-extended photocathode. In this report we discuss the distribution of the major characteristics measured and the failure mode. Comparisons between independent measurements made on some of the characteristics are used to evaluate the quality of the measurement itself.

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9 pages

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Fiori, I. December 1, 1997.

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Description

A systematic test of various characteristics, such as gain, dark current, maximum peak current, stability and relative quantum efficiency, has been made to evaluate about 2,000 photomultiplier tubes for the upgraded CDF Endplug calorimeters. The phototubes are Hamamatsu R4125,19mm diameter with green-extended photocathode. In this report we discuss the distribution of the major characteristics measured and the failure mode. Comparisons between independent measurements made on some of the characteristics are used to evaluate the quality of the measurement itself.

Physical Description

9 pages

Notes

INIS; OSTI as DE00016468

Source

  • 7th International Conference on Calorimetry in High Energy Physics, Tucson, AZ (US), 11/09/1997--11/14/1997; Other Information: Supercedes report DE98051569

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  • Other: DE98051569
  • Report No.: FNAL/C--97/421-E
  • Report No.: CONF-9711100--
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 16468
  • Archival Resource Key: ark:/67531/metadc620442

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  • December 1, 1997

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 1, 2016, 5:05 p.m.

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Fiori, I. Test on 2,000 photomultipliers for the CDF endplug calorimeter upgrade, article, December 1, 1997; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc620442/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.