Radiation protection videos
During 2008 to 2010 Ionactive commissioned a number of radiation protection videos produced by Dr Chris Robbins of Grallator. The video resource covers radiation detectors (GM tubes), gamma ray constants, linear accelerators, radiotherapy treatment rooms, industrial radiography enclosures, radiation dose units, inverse square law, radiation (photon) scattering, CBRN (radiological and nuclear hazards including the Louis Slotin criticality incident) and more.
These were put up on YouTube at a video quality which matched expectation of that time - and did well with plenty of views and comments (they are still there if you go looking). We have used the higher quality source files to represent these videos again, direct on the Ionactive website. We have improved and balanced the audio, and they now stream from Vimeo with no adverts. These videos are over 10 years old but the content stands the test of time - they are excellent radiation safety training resource.
For formal radiation safety advice, visit our Radiation Protection Adviser (RPA) services page.
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Radiological and Nuclear Hazards - the R and N in CBRN
Published: Jun 09, 2024
Source: Ionactive Radiation Protection Resource
Read moreA 2009 video looking at radioactive and nuclear materials. In particular the nuclear hazard is considered in terms of critical mass and chain reaction, and also by looking at power output in a nuclear reactor, as compared to a prompt critical excursion. Historical context is added by considering the Louis Slotin criticality incident.
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Magnitudes, units and prefixes as might be used in radiation protection (video)
Published: May 28, 2024
Source: Ionactive Radiation Protection Resource
Read moreWhich is larger? 100 nSv or 0.1 micro Sv? Which sounds (or looks) larger? This resource considers magnitudes, units and prefixes. Whilst applicable to any situation which uses numbers, this resource considers how this applies to radiation protection. The animation was first posted to YouTube in 2012, it has now been upscaled and features on the Ionactive Vimeo channel direct from our website.
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Industrial radiography in a large enclosure, open-topped (video)
Published: May 27, 2024
Source: Ionactive Radiation Protection Resource
Read moreAn animation from 2011 showing the detailed radiation protection features and operation of a large open-topped industrial radiography enclosure. The resource describes the radiation shielding, the radiation protection interlock system, the search and lock-up procedure and operation.
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The inverse square law and protection by distance (video)
Published: May 27, 2024
Source: Ionactive Radiation Protection Resources
Read moreA video from some years ago (2008) - but still of educational and training interest. An animated description of the inverse square law as applied to uses of ionising radiation. This video shows how radiation protection can be enhanced using protection by distance (from an external source of gamma or x-rays).
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The linac accelerator (linac) - medical & other applications (video)
Published: May 19, 2024
Source: Ionactive Radiation Protection Resource
Read moreA video from some years ago (2008) - but still stands the test of time. In fact, as far as we know this was the first of its kind. Since then the big players in linac technology have produced other video resources, which are excellent. Radiation protection training resource of this type still has significant value and so is offered again with audio and visual optimisation. This resource covers how the linac works, from electron gun to electron target. The basic principles of the described linac will also be similar to those used in cargo screening, industrial irradiation and industrial radiography.
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The Gamma Ray Constant (Video)
Published: May 10, 2024
Source: Ionactive Radiation Protection Resources
Read moreAn Ionactive video release created for us by Grallator in 2009. This video looks at the Gamma Ray constant of the form D=ME/6r2 (terms explained in the video page). Later more recent resource (i.e. 2024) takes the concepts in this video and develops them much further - looking at the detailed maths and physics (links will be found on the video page). There is still lots of good radiation protection educational content here despite its vintage.
The definition of 'safe' is not strictly an engineering term; it's a societal term. Does it mean absolutely no loss of life? Does it mean absolutely no contamination with radiation? What exactly does 'safe' mean?