The calibration and monitoring system for the PHENIX lead-scintillator electromagnetic calorimeter

Author

David, G. ; Kistenev, E. ; Stoll, S. ; White, S. ; Woody, C. ; Bazilevsky, A. ; Belikov, S. ; Chernichenkov, S. ; Denisov, A. ; Gilitzky, Yu ; Kochetkov, V. ; Melnikov, Y. ; Onuchin, V. ; Semenov, A. ; Shelikhov, V. ; Soldatov, A.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

fYear

1997

fDate

9-15 Nov 1997

Firstpage

376

Abstract

The calibration and monitoring system for the PHENIX lead-scintillator electromagnetic calorimeter is described along with the experience obtained in using this system to calibrate calorimeter modules with cosmic rays. The system is based on a UV laser which delivers light to each module through a series of optical fibers and splitters that is monitored at various points using silicon and vacuum photodiodes. Results are given from a prototype system based on a nitrogen laser which was used to monitor the stability of several modules, as well as to set the gains of the phototubes and establish the energy calibration of all calorimeter modules before installation into the final detector. A description of the final system to be used in PHENIX, based on a high power YAG laser, is also given

Keywords

calibration; cosmic ray apparatus; solid scintillation detectors; PHENIX lead-scintillator electromagnetic calorimeter; Si photodiodes; UV laser; calibration; calorimeter modules; cosmic rays; energy calibration; final detector; high power YAG laser; monitoring system; nitrogen laser; optical fibers; phototubes; splitters; vacuum photodiodes; Calibration; Cosmic rays; Fiber lasers; Laser stability; Monitoring; Optical fibers; Photodiodes; Prototypes; Silicon; Vacuum systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1997. IEEE

Conference_Location

Albuquerque, NM

ISSN

1082-3654

Print_ISBN

0-7803-4258-5

Type

conf

DOI

10.1109/NSSMIC.1997.672606

Filename

672606