Vega MINITRAC 31 - Corresponding Source Container

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2 Product description
MINITRAC 31 • Foundation Fieldbus
62076-EN-190704
radiation is dependent on the density of the measured media. The
measuring principle has proven to be very reliable in conjunction
withextremeprocessconditionsbecauseitmeasurescontactlessly
fromoutsidethroughthetubewall.Themeasuringsystemensures
maximumsafety,reliabilityandplantavailabilityindependentofthe
medium and its properties.
2.3 Corresponding source container
A radioactive isotope in a suitable source holder is the prerequisite for
a radiometric measurement setup.
Thehandlingofradioactivesubstancesisregulatedbylaw.Theradia-
tionprotectionrulesofthecountryinwhichthesystemisoperated
applyrstandforemost.
InGermany,forexample,thecurrentradiationprotectionordinance
(StrlSchV)basedontheAtomicEnergyLaw(AtG)applies.
Thefollowingpointsareimportantformeasurementwithradiometric
methods:
A handling permit is required for operation of a system using gamma
rays.Thispermitisissuedbytherespectivegovernmentoceorthe
responsibleauthority(inGermany,forexample,ocesforenviron-
mentalprotection,tradesupervisoryboards,etc.)
Youcanndfurtherinstructionsintheoperatinginstructionsmanual
of the source container.
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 2 3
Fig. 3: 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eectiveshielding.
Time:Stayasshortatimeaspossibleinradiationexposedareas.
Handling permit
General instructions for
radiation protection