Heat fixable high energy radiation imaging film
AssigneeJP Laboratories, Inc.
InventorsGordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel
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Abstract
Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.
Claims26
A self-developing film for developing an image from exposure to X-ray, gamma ray, or electron, radiation comprising at least one conjugated diacetylene, or cocrystallized mixture thereof, capable of undergoing a color change upon polymerization when contacted with ultraviolet light, X-rays, alpha particles, or electrons, thereby forming an image;
- a binder;
- a convertor, wherein said convertor is a material which can emit lower energy radiation for polymerization of said diacetylene after contact with X-radiation, gamma radiation or electrons;
- wherein said image is capable of being fixed by heating said diacetylene at or above its melting point, or at the temperature at which the diacetylene undergoes a phase change to a radiation inactive phase, and wherein said film is transparent.
The film of claim I further comprising:
- (a) at least one layer containing said at least one conjugated diacetylene, or cocrystallized mixture thereof, capable of undergoing a color change upon polymerization induced by ultraviolet light, X-rays, alpha particles, or electrons, thereby forming a colored image;
- (b) at least one layer containing said binder and said convertor being in combination, being a complex or solid solution, wherein said convertor is a material capable of emitting ultraviolet light, low energy X-rays, alpha particles, or electrons upon contact with higher energy X-ray, gamma ray, electron, radiation;
- (c) a substrate upon which said layers (a) and (b) are deposited thereon, wherein layer (a) and layer (b) are capable of being combined into one layer (ab), and said colored image is capable of being fixed by heating said diacetylene at or above its melting point, or at the temperature at which the diacetylene undergoes a phase change to a radiation inactive phase.
The film of claim I wherein the convertor is a metallic moiety intermixed with said binder in a complex or solid solution combination.
The film of claim I wherein said convertor is selected from salts, alloys, or mixtures of:
- Cr, Mn, Fe, Co, Ni, Zr, Ru, In, Sb, W, Bi, U, La, Cr, Zn, Mo, Ba, Pd, Ag, Cu, Pt, Pb, Au, Hg, Ti, Cd, K, Mg, Na, Sn, Cs, l;
- phosphors;
- fluorescent compounds;
- or cathode luminescent compounds.
A self-developing film for developing an image from exposure to ultraviolet laser radiation comprising at least one conjugated diacetylene, or cocrystallized mixture thereof, capable of undergoing a color change upon polymerization when contacted with ultraviolet laser radiation thereby forming an image, and a polyethyleneimine binder complex, forming a transparent film, wherein said image is capable of being fixed by heating said diacetylene at or above its melting point, or at the temperature at which the diacetylene undergoes a phase change to a radiation inactive phase.
Dependencies are inferred from the claim text.