Abstract: A method and apparatus form visible images in an imaging media which exhibits variation in sensitivity and color balance as a function of temperature and humidity changes. The media includes a substrate having provided on one of its surfaces a layer of microcapsules containing an image forming agent and a photohardenable composition. In the apparatus, a radiation source provides one or more bands of actinic radiation for exposing the substrate. An optical system focuses the actinic radiation onto the substrate to form a latent image thereon. A developing device develops the latent image into a visible image onto the substrate or onto a receiver substrate. A temperature and/or humidity sensor is provided for sensing the temperature and/or humidity exposure environment prior to exposure. An exposure control responsive to the sensors(s) controls the duration of the exposure at least partially as a function of temperature and/or humidity.

Abstract: Ashing rates of encapsulants exposed to an oxygen plasma in a reactor are increased by simultaneously exposing a solid halogen-substituted hydrocarbon polymer to a plasma jet formed within a cavity in a grounded conductive surface of the reactor. Advantageously the solid reactant may be polyvinyl chloride or polytetrafluorethylene in solid form.

Abstract: Reactor apparatus for use with a gaseous plasma includes a grounded electrode in contact with the plasma. The electrode includes one or more bores in which plasma jets form.