Patent Number: 06222896&
Section: claims

1. A solid target suitable for use in producing .sup.186 Re via a (n,.gamma.) Szilard-Chalmers reaction, the target comprising a target layer formed on a surface of a substrate, the target layer comprising an inorganic rhenium compound and having a projected thickness of not more than about 150 nm, the compound including a .sup.t Re target nuclide in an oxidation state of not more than +6, where t is 185 for producing .sup.186 Re.  a rhenium oxide which includes a .sup.t Re target nuclide in an oxidation state of not more than +6, where t is 185 for producing .sup.186 Re, and  a M-hydroxide where M is a metal other than rhenium.  a rhenium oxide which includes a .sup.t Re target nuclide in an oxidation state of not more than +6, where t is 185 for producing .sup.186 Re, and  a tin oxide or a tin hydroxide.  a rhenium oxide which includes a .sup.t Re target nuclide in an oxidation state of not more than +6, where t is 185 for producing .sup.186 Re, and  a M-oxide or M-hydroxide wherein M is a metal other than rhenium, and wherein the amount of atomic oxygen present in the M-oxide or the M-hydroxide ranges from a stoichiometric amount to about four times the stoichiometric amount required for the target nuclide to react with the atomic oxygen to form the oxidized product nuclide. 2. The target of claim 1 wherein the target comprises a rhenium oxide which includes the .sup.185 Re target nuclide and an M-oxide or a M-hydroxide, where M is a metal other than rhenium. 3. The target of claim 2 wherein the metal, M, is present as an M-oxide. 4. The target of claim 2 wherein the metal, M, is present as an M-hydroxide. 5. The target of claim 2 wherein M is magnesium. 6. The target of claim 2 wherein M is tin. 7. The target of claim 2 wherein M is titanium. 8. A solid target material suitable for use in producing .sup.186 Re via a (n,.gamma.) Szilard-Chalmers reaction, the target material comprising granules of an inorganic rhenium compound, the compound including a .sup.t Re target nuclide in an oxidation state of not more than +6, the granules having an average radius of less than about 150 nm (1500 .ANG.), where t is 185 for producing .sup.186 Re. 9. The target of claim 8 wherein the target comprises a rhenium oxide which includes the .sup.185 Re target nuclide and an M-oxide or an M-hydroxide, where M is a metal other than rhenium. 10. The target of claim 9 wherein the metal, M, is present as an M-oxide. 11. The target of claim 9 wherein the metal, M, is present as an M-hydroxide. 12. The target of claim 9 wherein M is magnesium. 13. The target of claim 9 wherein M is tin. 14. The target of claim 9 wherein M is titanium. 15. A solid target suitable for use in producing .sup.186 Re via a (n,.gamma.) Szilard-Chalmers reaction, the target comprising 16. The target of claim 15 wherein M is magnesium. 17. The target of claim 15 wherein M is tin. 18. The target of claim 15 wherein M is titanium. 19. A solid target suitable for use in producing .sup.186 Re via a (n,.gamma.) Szilard-Chalmers reaction, the target comprising 20. The target of claim 19 wherein the tin is present in the target as a tin oxide. 21. A solid target suitable for use in producing .sup.186 Re via a (n,.gamma.) Szilard-Chalmers reaction, the target comprising 22. The target of claim 21 wherein the metal, M, is present as an M-oxide. 23. The target of claim 21 wherein the metal, M, is present as an M-hydroxide. 24. The target of claim 21 wherein M is magnesium. 25. The target of claim 21 wherein M is tin. 26. The target of claim 21 wherein M is titanium.