Title :
Results of L3 BGO calorimeter calibration using an RFQ accelerator
Author :
Chaturvedi, U. ; Favara, A. ; Gataullin, M. ; Gratta, G. ; Kirkby, D. ; Lu, W. ; Newman, H. ; Shvorob, A. ; Tully, C. ; Zhu, R.
Author_Institution :
Dept. of Phys., California Inst. of Technol., Pasadena, CA, USA
fDate :
12/1/2000 12:00:00 AM
Abstract :
A novel calibration system based on a radiofrequency-quadrupole (RFQ) accelerator has been installed in the L3 experiment. Radiative capture of 1.85 MeV protons from the RFQ accelerator in a lithium target produces a flux of 17.6 MeV photons which are used to calibrate 11000 crystals of the L3 BGO calorimeter. In this paper we present results of the RFQ run taken in November 1997. A calibration precision of 0.6% was reached in the barrel of the L3 BGO calorimeter, and 0.7% in the BGO endcaps
Keywords :
bismuth compounds; calibration; particle calorimetry; solid scintillation detectors; BGO endcaps; Bi4Ge3O12; L3 BGO calorimeter calibration; RFQ accelerator; calibration system; radiofrequency-quadrupole accelerator; Acceleration; Calibration; Detectors; Energy resolution; Laboratories; Magnetic flux; Magnetic shielding; Particle beams; Photonic crystals; Radio frequency;
Journal_Title :
Nuclear Science, IEEE Transactions on
