Muon fluence measurements at the site boundary for 1985 Page: 2 of 11
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TH 1394
1104.3
1
MUON FLUENCE MEASUREMENTS AT THE SITE BOUNDARY
FOR 1985
A. J. Elwyn
March 1986
Introduction
„2
Muon fluence (muons cm ) was measured downstream of the experimental
area beamlines, just beyond the Fermilab site boundary at Route 38
(Roosevelt Road) in West Chicago. The main purpose of these measurements
was to obtain an estimate of the yearly off-site radiation exposure to the
general population due to accelerator-produced muons during the 1985 800
GeV run. Similar observations during the 1984 running period have been
1 2
reported, as have measurements made at 350 and 400 GeV.
Measurements
The measurements were performed with the Mobile Environmental
1 2
Radiation Lab (MERL), as described previously. ’ Muons were detected by a
pair of 0.64 cm thick plastic scintillator paddles, with transverse
dimensions of 20.32 cm by 20.32 cm, separated by 15 cm with a 2.54 cm thick
aluminum plate placed in the gap. They were located in the vehicle at a
height of about four feet above the ground. Standard electronic modules
were used to record on scalers both singles and coincidence events from the
two detectors. The scalers were gated on during both beam-on (a 23 sec
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Elwyn, A.J. Muon fluence measurements at the site boundary for 1985, report, March 1, 1986; Batavia, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1084537/m1/2/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.