Chapter 1 General Information
Mini-Switch LB 471
1.3 Radiation Protection Courses
Special course in radiation protection
(Duration: 2 days)
This course is needed if the participant has not yet received any
radiation protection training. A successfully completed course
has a validity of 5 years.
Refreshing course in radiation protection
(Duration: 1 day)
All persons who have already successfully completed the spe-
cial course may refresh their special knowledge with this course
(Radiation Protection Ordinance of August 1, 2001).
A successfully refreshing course has a validity of 5 years.
1.4 Definitions
Some parameters can either be set to the automatic or manual
mode. In the automatic mode the value is calculated using a
formula. Enter -1 to enable the automatic mode. The inverted C
in the top row indicates whether a parameter has been set to
automatic.
In this mode, a value can be changed. Not every parameter can
be changed since some parameters are only used as display
values. Editable Parameters can be set to the edit mode with
the “Enter” button. In the edit mode the cursor positioned over
a digit is flashing.
Detector with Geiger-Müller counter tube
NaI = sodium iodine crystal = scintillator
Scintillation detectors are very sensitive to Gamma radiation.
See pages 40 and 121.
Detector which is highly sensitive to Gamma radiation with
large-volume plastic scintillator 150x150mm
Count rate or percentage value upon reaching the measure-
ment level
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