Method and apparatus for making X-ray images
AssigneeAgfa-Gevaert
InventorsJosef Pfeifer, Alfred Rheude, Jurgen Muller
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AssigneeAgfa-Gevaert
InventorsJosef Pfeifer, Alfred Rheude, Jurgen Muller
Estimating the term…
Sheet-like dielectric receptors which are to be exposed to object-modulated X-rays in the interelectrode gap of an ionography imaging chamber are attached to sheet-like carriers so that the carriers extend laterally beyond the reactors. The carriers are thereupon transported through the interelectrode gap and through successive stations of a xerographic printer which renders the latent imges of objects visible and subjects the receptors to other treatment. The carriers can be attached to receptors by resorting to an adhesive, by the application of electrostatic charges and/or by causing the marginal portions of the carriers to engage the receptors by suction. The carriers are provided with semiconductive layers whose surface resistance can be varied at or prior to entry of carriers and attached receptors into the various stations; this can be achieved by utilizing semiconductive layers whose resistance can be influenced by changing the pressure of the surrounding atmosphere or by utilizing photosensitive layers whose resistance changes in response to exposure to light. The layers are regenerated upon separation of finished receptors so as to allow for renewed use of the respective carriers.
In a method of making X-ray images on sheet-like dielectric receptors which are exposed to object-modulated X-rays in the interelectrode gap of an ionography imaging chamber to produce thereon latent images which are made visible by xerographic techniques at a developing station, the steps of separably attaching each receptor to one side of a discrete sheet-like carrier which is at least partially conductive and extends beyond the respective receptor;
Apparatus for making X-ray images on sheet-like dielectric receptors, comprising an ionography imaging chamber having an interelectrode gap wherein the receptors are exposed to object-modulated X-rays to provide thereon latent electrostatic images of objects;
As a novel article of manufacture, a flexible sheet-like carrier for transport of a single separably sheet-like dielectric receptor through apparatus wherein the receptors are exposed to object-modulated X-rays in the interelectrode gap of an ionography imaging chamber to form thereon latent images which are thereupon made visible by xerographic techniques, said carrier including a first layer and a second layer having a surface resistance which, during at least one stage of transport through said apparatus, is at least 10.sup.9 ohms per unit area.
Dependencies are inferred from the claim text.