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Photographic Film - an overview | ScienceDirect Topics
- https://www.sciencedirect.com/topics/earth-and-planetary-sciences/photographic-film
- Photographic film darkens on exposure to ionizing radiation and is an indicator of the presence of radioactivity. Film is often used for determining personnel exposure and making other dose measurements for which a record of dose accumulated over a period of time is necessary, or for which a permanent record is required.
How does radiation blacken photographic film? | Naked …
- https://www.thenakedscientists.com/forum/index.php?topic=66466.0
- Re: How does radiation blacken photographic film? « Reply #1 on: 13/04/2016 22:38:25 ». This is horrendously simplified - I have a rack of textbooks on the subject, and it's still something of a black art! Silver halides dissociate when stimulated by photons, into elemental silver and halogen. In a photographic emulsion the halogen atoms can diffuse out of the halide …
Detecting radiation - Properties of radiation - BBC Bitesize
- https://www.bbc.co.uk/bitesize/guides/z8r8nbk/revision/5
- Photographic film Photographic film goes darker when it absorbs radiation, just like it does when it absorbs visible light. The more radiation the film absorbs, the darker it is when it is...
What happens to photographic film when exposed to …
- https://www.quora.com/What-happens-to-photographic-film-when-exposed-to-radiation
- The photographic film goes darker when it absorbs radiation, just like it does when it absorbs visible light. The more radiation the film absorbs, the darker it is when it is developed. People who work with radiation wear film badges, which are checked regularly to monitor the levels of radiation absorbed.
The fogging of photographic film by radioactive …
- https://www.osti.gov/biblio/4438926-fogging-photographic-film-radioactive-contaminants-cardboard-packaging-materials
- Therefore, the photographic industry moust submoit the primoary moaterials to rigorous controls for radioactive contamoination. The principal sources of radioactive residues are atomoic and hydrogen bombs, reactors, and the utilization of radioisotopes. The moeasuremoent of the radioactive contamoination of the atmosphere is moade regularly. (tr-auth)
Using photographic film to measure radioactivity
- https://physics.stackexchange.com/questions/666173/using-photographic-film-to-measure-radioactivity
- Only a small fraction of gammas would cause ionization within the film. You would need some way to estimate what fraction of the tracks were caused by background or cosmic radiation (perhaps long before you bought the film). You would need some systematic way of counting the tracks using a microscope. Share.
The Effect of Radiation on Selected Photographic Film
- https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20010004099.pdf
- Back to Results. The Effect of Radiation on Selected Photographic Film We conducted this film test to evaluate several manufacturers' photographic films for their ability to acquire imagery on the International Space Station. We selected 25 motion picture, photographic slide, and negative films from three different film manufacturers.
What makes an X-ray machine's white photographic film …
- https://chemistry.stackexchange.com/questions/34985/what-makes-an-x-ray-machines-white-photographic-film-go-black
- The X-rays hit the fluorescent material and (I guess by absorption and reflection, or absorption and emission) converts it into regular light, and there is a phosphorescent material/coating there, too, so the light remains for a while, and the light, I guess, blackens the film. yeah I suppose so.
The Effect of Radiation on Selected Photographic …
- https://ntrs.nasa.gov/api/citations/20010004099/downloads/20010004099.pdf
- High background levels of radiation damage unprocessed photographic materials, which are typically somewhat sensitive to nonvisible portions of the electromagnetic spectrum. The absorption of radiation by photographic films causes photographic fog.
Photographic film - Wikipedia
- https://en.wikipedia.org/wiki/Photographic_film
- Photographic film is a strip or sheet of transparent film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and resolution of the film.. The emulsion will gradually darken if left exposed to light, but the process is too slow and ...
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