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Title: Relative Gain Monitoring of the GlueX Calorimeters

The relative gain of the photodetectors for the GlueX Barrel and Forward calorimeters will be monitored using modular LED driver systems. The BCAL system consists of a global controller that feeds power, bias voltage and trigger signals to 96 local controllers situated at the ends of the 48 BCAL modules, which drive 40 LEDs associated with the 40 light guides at the end of each module. The FCAL system consists also of a global controller, a local controller for each acrylic quadrant covering the face of the FCAL, and ten 4-LED pulser boards per local controller connected in a star configuration along the edges of the acrylic panes. The respective systems are currently being installed on the detectors and their tested performance is presented herein.
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [4] ;  [4] ;  [4] ;  [4] ;  [5] ;  [5] ;  [5] ;  [6] ;  [7] ;  [7]
  1. JLAB/National and Kapodestrian University of Athens (Greece)
  2. National and Kapodestrian University of Athens (Greece)
  3. Symmetron Electronic Applications, Gerakas (Greece)
  4. University of Regina, Saskatchewan (Canada)
  5. Indiana Univ., Bloomington, IN (United States)
  6. JLAB/CNU, Newport News, VA (United States)
  7. JLAB, Newport News, VA (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-PHY-13-1803; DOE/OR-23177-2908
Journal ID: ISSN 0168-9002; TRN: US1400169
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment; Journal Volume: 738
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Gain monitoring; LED; Multi photon pixel counter; Lead glass calorimeter; Sampling calorimeter