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Radiation Film Badge
Radiation Film Badge
Price: £11.60
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Stock Update: Only for schools to order
Availability: 2021-22 Prices Now Apply

Cat. No.: RAD-800-100
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A demonstration of the film badges worn by Classified Radioactive Workers to measure the body dose of radiation reciieved whislt working. The different filters allow particualar types of radiation to pass through to the film and when processed the dose can be calculated. The filters can used with radioactive sources to determine which type of ionising radiation is being absorbed or transmitted. The badge has six filters:

a. An open window which allows all incident radiation that can penetrate the film wrapping to interact with the film.

b. A thin plastic film which attenuates beta radiation but passes all other radiations

c. A thick plastic filter which passes all but the lowest energy photon radiation and absorbs all but the highest beta radiation.

d. A dural filter which progressively absorbs photon radiation at energies below 65keV as well as beta radiation.

e. A tin/lead filter of a thickness which allows an energy independent dose response of the film over the photon energy range 75keV to 2Mev.

f. A cadmium lead filter where the capture of neutrons by cadmium produces gamma rays which blacken the film thus enabling assessment of exposure to neutrons.

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