Authors
Citation
U. Chaturvedi et al., Calibration of the L3 BGO calorimeter using an RFQ accelerator, NUCL INST A, 461(1-3), 2001, pp. 376-377
Citations number
3
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002
→ ACNP
Volume
461
Issue
1-3
Year of publication
2001
Pages
376 - 377
Database
ISI
SICI code
0168-9002(20010401)461:1-3<376:COTLBC>2.0.ZU;2-W
Abstract
An improved calibration technique based on a radio-frequency-quadrupole (RF
Q) accelerator is presented. A high-intensity flux of 17.6 MeV photons, pro
duced by radiative capture of 1.85 MeV protons from the RFQ in a lithium ta
rget, is used to calibrate in situ 11000 crystals of the L3 EGO calorimeter
. We present results obtained for the calibration of 1997-1999 L3 data samp
les. For the first time a calibration precision better than 0.5% is reached
for the entire EGO calorimeter. The importance of such a technique is also
outlined in view of extensive use of crystal calorimetry at the LHC. (C) 2
001 Elsevier Science B.V. All rights reserved.