Patent Number: 
Section: claims

1. A method for forming a radiation flood source, the method comprising:preparing a radioactive isotope carrier solution;loading the radioactive isotope carrier solution into a radioactive isotope carrier solution cartridge;loading a separate border cartridge into a plotter;selecting and configuring a shape of an active area;setting a border to be placed around the active area;printing the active area by utilizing the radioactive isotope carrier solution cartridge on a sheet substrate; andprinting the border by utilizing the separate border cartridge on the sheet substrate. 2. The method of claim 1, further comprising:laminating the printed sheet substrate to block radioactive isotopes on the active area from separating from the active area; andplacing the laminated printed sheet substrate in a protective housing. 3. The method of claim 1, further comprising:cutting an active sheet around the printed border from the printed sheet substrate;laminating the active sheet to block radioactive isotopes on the active area from separating from the active area; andplacing the laminated active sheet in a protective housing. 4. The method of claim 1, further comprising:cutting an active sheet around the printed border from the printed sheet substrate;laminating the active sheet to block radioactive isotopes on the active area from separating from the active area;testing the laminated active sheet to verify an integrity of the active area; andplacing the tested active sheet in a protective housing. 5. The method of claim 1, wherein the preparing of the radioactive isotope carrier solution comprises:drying a radioactive isotope solution to form dried radioactive isotopes; andmixing the dried radioactive isotopes with a pigmentless carrier solution to prepare the radioactive isotope carrier solution. 6. The method of claim 1, wherein the active area is printed only by the radioactive isotope carrier cartridge, and the border is printed only by the border cartridge. 7. The method of claim 1, wherein the radioactive isotope carrier solution comprises an active material composed of radioactive isotopes selected from the group consisting of Cobalt 57, Iodine 125, Palladium 103, Barium 133, Carbon 14, Gadolinium 153, Phosphorus 33, Tellurium 99, and combinations thereof. 8. The method of claim 7, wherein the radioactive isotope carrier solution is formulated with a pigmentless carrier solution comprising cobalt chloride, ethylene glycol, glycerin, and hydrochloric acid and to have a viscosity adapted for being inkjet printed on the sheet substrate. 9. The method of claim 8, wherein the pigmentless carrier solution is composed of a mixture of 600 mg of cobalt chloride, 10 ml ethylene glycol, 10 ml glycerin, and 80 ml of 0.1M hydrochloric acid. 10. The method of claim 1, wherein:the radioactive isotope carrier solution is a pigmentless radioactive isotope carrier solution;the printing of the active area comprises printing the active area by utilizing only the pigmentless radioactive isotope carrier solution;the separate border cartridge comprises a pigmented ink solution; andthe printing of the border comprises printing the border around the area by utilizing only the pigmented ink solution. 11. A plotting system for forming a radiation flood source comprising:a sheet substrate supply configured to provide a sheet substrate;a radioactive isotope carrier solution cartridge containing a radioactive isotope carrier solution and configured to print an active area onto the sheet substrate;a separate border cartridge configured to print a border around the active area on the sheet substrate; anda controller configured to control the radioactive isotope carrier solution cartridge to print the active area onto the sheet substrate and the separate border cartridge to print the border around the active area on the sheet substrate. 12. The plotting system of claim 11, wherein the radioactive isotope carrier solution cartridge is an inkjet cartridge. 13. The plotting system of claim 11, wherein the radioactive isotope carrier solution is a mixture of dried radioactive isotopes and a pigmentless carrier solution. 14. The plotting system of claim 11, wherein the active area is printed only by the radioactive isotope carrier cartridge, and the border is printed only by the border cartridge. 15. The plotting system of claim 11, wherein the radioactive isotope carrier solution comprises an active material composed of radioactive isotopes selected from the group consisting of Cobalt 57, Iodine 125, Palladium 103, Barium 133, Carbon 14, Gadolinium 153, Phosphorus 33, Tellurium 99, and combinations thereof. 16. The plotting system of claim 11, wherein the radioactive isotope carrier solution is formulated with a pigmentless carrier solution comprising cobalt chloride, ethylene glycol, glycerin, and hydrochloric acid and to have a viscosity adapted for being inkjet printed on the sheet substrate. 17. The plotting system of claim 16, wherein the pigmentless carrier solution is composed of a mixture of 600 mg of cobalt chloride, 10 ml ethylene glycol, 10 ml glycerin, and 80 ml of 0.1M hydrochloric acid. 18. The plotting system of claim 11, wherein the separate border cartridge contains a pigmented solution composed of color pigments selected from the group consisting of black pigments, cyan pigments, yellow pigments, magenta pigments, and combinations thereof. 19. A radiation flood source comprising:a paper sheet;a pigmentless radioactive fill printed on the paper sheet and comprising radioactive isotopes selected from the group consisting of Cobalt 57, Iodine 125, Palladium 103, Barium 133, Carbon 14, Gadolinium 153, Phosphorus 33, Tellurium 99, and combinations thereof; anda pigmented border printed on the paper sheet and around the pigmentless radioactive fill. 20. The radiation flood source of claim 19, further comprising:a first protective sheet laminated with the paper sheet with the radioactive isotopes therebetween. 21. The radiation flood source of claim 20, further comprising a second protective sheet and the paper sheet being laminated between the first protective sheet and the second protective sheet. 22. The radiation flood source of claim 21, further comprising a housing having an interior space housing the paper sheet with the pigmentless radioactive fill. 23. The radiation flood source of claim 22, further comprising a spacer also housed in the interior space of the housing and between an interior side of the housing facing the paper sheet and the paper sheet. 24. The radiation flood source of claim 19, further comprising a housing having an interior space housing the paper sheet with the pigmentless radioactive fill. 25. The radiation flood source of claim 24, further comprising a spacer also housed in the interior space of the housing and between an interior side of the housing facing the paper sheet and the paper sheet. 26. The radiation flood source of claim 19, wherein the pigmentless radioactive fill further comprises a pigmentless carrier material. 27. The radiation flood source of claim 19, wherein the pigmented border comprises color pigments selected from the group consisting of black pigments, cyan pigments, yellow pigments, magenta pigments, and combinations thereof. 28. The radiation flood source of claim 19, wherein the pigmentless radioactive fill is transparent to visible light.