Ludlum Measurements 182, Руководство пользователя

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Model 182 Radon Flask Counter
Ludlum Measurements, Inc. Page 2 June 2011
scintillation material on top of the plexiglass. The plexiglass
should be checked for cleanliness and cleaned, if necessary,
prior to using the Flask Counter. Place the radiation source on
top of the scintillation material. Fasten cover to main body by
tightening the thumbscrews and record data.
Note:
A delay of 20 or more minutes of dark adaptation may be
required after scintillation material is exposed to direct
room light.
Specifications
Photomultiplier Tube (PMT):
5.1 cm (2 in.) diameter, 14-pin
10-stage dynode string
Operating Range:
400-1250 V
Maximum PMT Voltage:
1500 V
Connector:
standard Series C
Dark Adaptation:
function of scintillation material (ranges
from 20 minutes to 48 hours)
Maximum Sample Size:
6.1 x 12.7 cm (2.4 x 5 in.) (Dia x H)
Size
: 8.9 x 38.1 cm (3.5 x 15 in.) (Dia x H) with a 15.2 x 15.2
cm (6 x 6 in.) square base
Weight:
4.5 kg (10 lb)
Finish:
b
Dynode String Resistance:
60 Megohm
lack powder coat (inside and outside)