Patent Number: 
Section: claims

1. A molybdenum-100 target assembly comprising:a sintered molybdenum-100 disc;a target holder provided with a recess having a flat surface for receiving therein the sintered molybdenum-100 disc, the target holder comprising a dispersion-strengthened copper composite; andan intermediate layer comprising a brazing alloy of copper and phosphorus therebetween,wherein the intermediate layer is engagingly brazed in between the sintered molybdenum-100 disc and the flat surface of the recess in the target holder. 2. A method of making a molybdenum-100 target assembly, comprising:preparing a pressed molybdenum-100 disc;sintering the pressed molybdenum-100 disc;brazing the sintered molybdenum-100 disc into a recess provided in a target holder,thereby producing the molybdenum-100 target assembly of claim 1. 3. The method of claim 2, wherein the step of preparing the pressed molybdenum-100 disc comprises:placing a selected amount of a molybdenum-100 powder into a cylindrical tool and die set, andapplying a selected pressure thereto for at least 30 sec. 4. The method of claim 3, wherein the selected amount of molybdenum-100 powder is selected from a range of 0.3 g to 3 g. 5. The method of claim 3, wherein the selected amount of molybdenum-100 powder is 1.6 g. 6. The method of claim 3, wherein the selected pressure is selected from a range of 2,000 lbs to 100,000 lbs. 7. The method of claim 3, wherein the selected pressure is 30,000 lbs. 8. The method of claim 2, wherein the step of sintering the pressed molybdenum-100 disc comprises:increasing the temperature from ambient to 1,300° C. at a rate of 5° C./min;increasing the temperature from 1,300° C. to 1,700° C. at a rate of 2° C./min;maintaining the temperature at 1,700° C. for 5 h;decreasing the temperature from 1,700° C. to 1,300° C. at a rate of 2° C./min; anddecreasing the temperature from 1,300° C. to ambient at a rate of 5° C. 9. The molybdenum-100 target assembly of claim 2, wherein the dispersion-strengthened copper composite comprises aluminum oxide ceramic particles. 10. The molybdenum-100 target assembly of claim 3, wherein the brazing alloy comprises a range of 2-18 wt % silver, a range of between 75-92 wt % copper, and a range of 5-7.25 wt % phosphorus.