3196

Irradiated Dime Collection

Currency:USD Category:Coins & Paper Money / US Coins Start Price:90.00 USD Estimated At:180.00 - 350.00 USD
Irradiated Dime Collection
SOLD
75.00USDto D*****2+ buyer's premium (18.00)
This item SOLD at 2017 Oct 21 @ 11:15UTC-7 : PDT/MST
SHIPPING & HANDLING: Shipping and Handling cannot be estimated prior to invoicing, based on the size and weight of your purchase. All shipping is subject to a minimum charge of $19.00. If additional shipping and handling costs are required, the buyer will be reinvoiced for the balance due. Items are not shipped until the invoice is completely paid. Many buyers purchase a number of lots. Every effort will be made to include all lots in a single shipping charge calculated to cover the weight
Lot of nine US dimes irradiated dimes from the American Museum of Atomic Energy. Three Mercury and six Roosevelt. Dates from 1923 through 1957. The following description is from a 1954 press release from the American Museum of Atomic Energy:



"One of the most popular exhibits in the American Museum of Atomic Energy is a "dime irradiator." To date, more than 250,000 dimes have been irradiated, encased in plastic and returned to their owners as souvenirs. The irradiator works as follows: A mixture of radioactive antimony and beryllium is enclosed in a lead container. Gamma rays from the antimony are absorbed by the beryllium atoms and a neutron is expelled by the beryllium atom in the process.



These neutrons, having no electrical charge, penetrate silver atoms in the dime. Instead of remaining normal silver-109, they become radioactive silver-110. After irradiation, the dime is dropped out through a slot in the lead container and rests momentarily before a Geiger tube so that its radioactivity may be demonstrated. It is then encased in the souvenir container. Radioactive silver, with a half-life of 22 seconds, decays rapidly to cadmium-110 (In 22 seconds, half of the radioactivity in each dime is gone, in another 22 seconds half the remainder goes, and so on until all the silver-110 has become cadmium). Only an exceedingly minute fraction of the silver atoms have been made radioactive."



City: State: Date: HWAC# 51370