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Evaluation of candidate photomultiplier tubes for the upgrade of the CDF end plug calorimeter

Conference ·
OSTI ID:10157827
; ; ; ; ; ;  [1];  [2];  [3];  [4]
  1. Fermi National Accelerator Lab., Batavia, IL (United States)
  2. Univ. of Bologna (Italy)
  3. Univ. of Padova (Italy)
  4. Purdue Univ., West Lafayette, IN (United States)
The Collider Detector at Fermilab is upgrading its end plug calorimeter from a gas detector system to one using scintillating tiles and wavelength shifting fibers. This tile-fiber calorimeter will be read out through 1,824 photomultiplier tubes. The performance requirements of the calorimeter require that the PMTs have good response to light in the 500 nm region, provide adequate amplification for signals from minimum ionizing particles yet provide linear response for peak anode currents up to 25 mA at a gain of 50,000, and fit into the restricted space at the rear of the plugs. This paper will describe the evaluation process used to determine the adequacy of the commercially available PMTs which appeared to meet these performance requirements.
Research Organization:
Fermi National Accelerator Lab., Batavia, IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
10157827
Report Number(s):
FNAL/C--94/022; CONF-9310261--8; ON: DE94013150
Country of Publication:
United States
Language:
English