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Measurement of electromagnetic shower position and size with a saturated avalanche tube hodoscope and a fine grained scintillation hodoscope

Conference ·
OSTI ID:5304186
A hodoscope has been constructed from 100 ..mu.. m diameter wires and brass tubes (1.2 x 0.7 cm/sup 2/ cross section) filled with a mixture of argon, ethane and ethyl alcohol. It has been tested in the saturated avalanche mode in an SCG1-C electromagnetic shower detector to determine its properties for the measurement of the position and size of electromagnetic showers. Two of these tube hodoscopes were positioned 3.5 radiation lengths deep in the detector and the profiles of 1 to 25 GeV electromagnetic showers were measured. Simultaneous measurements were performed using a plane of twenty, 0.5 cm wide scintillation counters positioned immediately behind the gas tube hodoscope. In addition the transition between saturated avalanche and limited streamer modes has been measured for the tube hodoscopes.
Research Organization:
Fermi National Accelerator Lab., Batavia, IL (USA); McGill Univ., Montreal, Quebec (Canada); Stanford Linear Accelerator Center, CA (USA); Shandong Univ., Jinan (China)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
5304186
Report Number(s):
FERMILAB-Conf-84/22-E; CONF-831015-39; ON: DE84007247
Country of Publication:
United States
Language:
English