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Photographic Plate - an overview | ScienceDirect Topics
- https://www.sciencedirect.com/topics/earth-and-planetary-sciences/photographic-plate
- Photographic plates A and B consisting of emulsion set on 1 cm thick glass supports were separated from each other by a 3 mm thick lead barrier and wrapped in an envelope of light-tight paper. The dashed circle represents the pole of a magnet from which the lines of force are directed into the plane of the page perpendicular to the path of radiation emitted by the radium …
STUDY OF THE RADIATION OF POLONIUM SOURCES …
- https://www.osti.gov/biblio/4388826-study-radiation-polonium-sources-photographic-plates
- Ader, M, Debiesse, J, and Kahan, T. STUDY OF THE RADIATION OF POLONIUM SOURCES WITH PHOTOGRAPHIC PLATES.Country unknown/Code not available: N. p., 1952. Web.
Polonium Facts - Elements Are Interesting - ThoughtCo
- https://www.thoughtco.com/polonium-facts-606578
- Pure polonium is a silvery-colored solid. Mixed or alloyed with beryllium, polonium can be used as a portable neutron source. Polonium is …
Polonium (Po) - Chemical properties, Health and …
- https://www.lenntech.com/periodic/elements/po.htm
- Polonium was once used in textile mills (to eliminate static charges) and by the manufacturers of photographic plates (in brushes to remove the accumulated dust). It is used as a source of alfa-radiation for research and, alloyed with beryllium it can act as a portable source of neutrons, which normally only access to a nuclear reactor can provide.
Photographic plate - Wikipedia
- https://en.wikipedia.org/wiki/Photographic_plate
- The first natural satellite discovered using photographic plates was Phoebe in 1898. Pluto was discovered using photographic plates in a blink comparator; its moon Charon was discovered 48 years later in 1978 by U.S. Naval Observatory astronomer James W. Christy by carefully examining a bulge in Pluto's image on a photographic plate.
Photographic Plates | Etsy
- https://www.etsy.com/market/photographic_plates
- Antique Photographic Plates, Instant Views, Photo Shot, Old Photographs, Gelatino Silver Bromide Plates, PHOT181603. HasbeenCraft. (2,970) $28.29. Vintage Soviet Photographic Plates Set of 12 pieces 9*12 in original Box. In branded sealed packaging. Made in USSR.
Facts About Polonium | Live Science
- https://www.livescience.com/39452-polonium.html
- Atomic weight (average mass of the atom): 209. Density: 9.32 grams per cubic centimeter. Phase at room temperature: Solid. Melting point: 489.2 degrees Fahrenheit (254 degrees Celsius) Boiling ...
Polonium-210 present in darkroom gadget - Amateur …
- https://www.amateurphotographer.co.uk/latest/photo-news/polonium-210-present-in-darkroom-gadget-28372
- The radioactive substance that killed the former Russian spy Alexander Litvinenko is contained in products including an anti-static brush used in photographic darkrooms. Though not present in a form that can be readily administered as a poison, small quantities of polonium-210 are contained in products including the Staticmaster Ionising Brush ...
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