Vega VEGASOURCE 86, Operating Instructions Manual, Page: 12 / 56

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3 Product description
VEGASOURCE 86 • Source holder
1008685-EN-230810
– This operating instructions manual
– Certificate of the source (source capsule)
– If necessary, further certificates
3.2 Principle of operation
The VEGASOURCE 86 is a source holder for shielding radioactive
sources Co-60.
The radioactive source in the source container emits gamma rays.
The VEGASOURCE 86 is mounted on the vessel or the pipeline
directly opposite the sensor.
The source holder shields the environment against gamma radia-
tion and protects the radioactive source from mechanical damage or
chemical influences. In case of large measuring ranges (e.g. with high
vessels) two or more source holders are used.
The VEGASOURCE 86 consists of the components:
1
2
3
4
Fig. 4: Source holder VEGASOURCE 86
1 Source holder
2 Cover (optional)
3 Transport lug
4 Mounting surface
The rays emitted by the gamma source are damped when penetrat-
ing the medium. The sensor detecting the attenuated radiation on the
opposite side of the vessel calculates the measured value from the
intensity of the radiation.
Max. activity of the sources
The following table states the max. activity of the sources. Production-
related fluctuations of the radiation activity and tolerances of the
measuring instruments are not taken into account.
Application area
Functional principle
Source