The E866 Mark II Bull`s Eye performance and promise

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Description

The performance of the E866 Bull`s Eye during the Sept--Oct 1994 gold beam runs is examined. Multipeaked pedestal distributions and direct hits of produced or scattered particles on the PMTs are noted. A simple procedure is described to correct for the observed dependence of BE response on event position. Nonlinearity of the BE Hard Sum compared to the Soft Sum is observed and shown to lead to an artificially good resolution of the former signal which defines the INT trigger. Suggestions are made for changes and additional measurements including a ``gate valve`` experiment during the next running period.

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24 p.

Creation Information

Cumming, J.B. August 1, 1995.

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Description

The performance of the E866 Bull`s Eye during the Sept--Oct 1994 gold beam runs is examined. Multipeaked pedestal distributions and direct hits of produced or scattered particles on the PMTs are noted. A simple procedure is described to correct for the observed dependence of BE response on event position. Nonlinearity of the BE Hard Sum compared to the Soft Sum is observed and shown to lead to an artificially good resolution of the former signal which defines the INT trigger. Suggestions are made for changes and additional measurements including a ``gate valve`` experiment during the next running period.

Physical Description

24 p.

Notes

INIS; OSTI as DE95016030

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  • Other Information: PBD: [1995]

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  • Other: DE95016030
  • Report No.: BNL--62000
  • Grant Number: AC02-76CH00016
  • DOI: 10.2172/96962 | External Link
  • Office of Scientific & Technical Information Report Number: 96962
  • Archival Resource Key: ark:/67531/metadc792587

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Creation Date

  • August 1, 1995

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Jan. 6, 2016, 5:16 p.m.

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Cumming, J.B. The E866 Mark II Bull`s Eye performance and promise, report, August 1, 1995; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc792587/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.