electron print

Definition: It is a silver image print made by using radioactive isotope - a rather obscure variant on the electronic image. * Ink is prepared with radioactive isotope, then used for painting or drawing. In dark, when ink is dry, photographic paper is placed on top: radioactive emissions of the isotope exposes paper which is processed normally to give negative copy of ink original. * Invented by Caroline Durieux, 1952.

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