Vega MINITRAC 31 Operating Instructions Manual page 13

General instructions for
radiation protection
Radiation safety officer
Control area
MINITRAC 31 • Foundation Fieldbus
When handling radioactive sources, unnecessary radiation exposure
must be avoided. An unavoidable radiation exposure must be kept as
low as possible. Take note of the following three important measures:
1
Fig. 4: Measures for protection against radioactive radiation
1 Shielding
2 Time
3 Distance
Shielding: Provide good shielding between the source and your-
self as well as all other persons. Special source containers (e.g.
VEGASOURCE) as well as all materials with high density (e.g. lead,
iron, concrete, etc.) provide effective shielding.
Time: Stay as short a time as possible in radiation exposed areas.
Distance: Your distance to the source should be as large as possible.
The local dose rate of the radiation decreases in proportion to the
square of the distance to the radiation source.
The plant operator must appoint a radiation safety officer with the
necessary expert knowledge. He is responsible for ensuring that the
radiation protection ordinance is complied with and for implementing
all radiation protection measures.
Control areas are areas in which the local dose rate exceeds a certain
value. Only persons who undergo official dose monitoring are allowed
into these control areas. You can find the respectively valid limit values
for control areas in the guideline of the respective authority (in Ger-
many, for example, the radiation protection ordinance).
We are at your disposal for further information concerning radiation
protection and regulations in other countries.
3 Product description
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