Thermo Scientific RO-20, Руководство по эксплуатации

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Ro-20 RB-XXX-XXXXXX E 1-1
Löw 08.10.2008
1. Introduction
1.1 Instrument Description
The Model RO-20 Ion Chamber ( Figure 1-1 ) is a portable air ion chamber instrument used to
detect beta ( ß ), gamma ( γ ) and x-ray radiation.
The RO-20 has five linear ranges of operation to measure exposure rate for x-ray and gamma
radiation. The ion chamber is vented to atmospheric pressure.
The RO-20 is calibrated to γ radiation (
137
Cs).
A single rotary Function Switch turns the instrument off, provides battery checks, checks the
Zero setting, and selects the range of operation.
Figure 1-1: Model RO-20 Ion Chamber