Patent Number: 
Section: claims

1. A radioisotope elution system, comprising:an auxiliary shield having a top plane, wherein the auxiliary shield comprises at least one radiation shielding material selected from depleted uranium, tungsten, tungsten impregnated plastic, or lead;a shield lid that includes a handle extending from at least two separate locations on a top surface of the shield lid, the shield lid comprising at least one radiation shielding material selected from depleted uranium, tungsten, tungsten impregnated plastic, or lead, wherein the shield lid is disposed in the auxiliary shield, wherein the handle crosses the top plane, and wherein at least one aperture is defined in the top surface and extends through the shield lid; anda radioisotope generator disposed in the auxiliary shield and biased by the weight of the shield lid, wherein the auxiliary shield includes a first complementary alignment structure that is keyed to an alignment structure disposed on the shield lid and a second complementary alignment structure that is keyed to another alignment structure on the radioisotope generator. 2. The radioisotope elution system of claim 1 wherein an elevation of the shield lid within the auxiliary shield is adjustable. 3. The radioisotope elution system of claim 1 wherein the shield lid is in direct contact with the radioisotope generator. 4. The radioisotope elution system of claim 1 wherein the auxiliary shield includes a receptacle defined therein, and wherein the shield lid is shaped to be received in the receptacle. 5. The radioisotope elution system of claim 1 wherein sidewalls of the shield lid are substantially parallel to sidewalls of the alignment structure on the shield lid. 6. The radioisotope elution system of claim 5 wherein the alignment structure on the shield lid is disposed on a bottom portion of the shield lid. 7. The radioisotope elution system of claim 1, wherein the alignment structure on the shield lid extends from a bottom surface of the shield lid. 8. The radioisotope elution system of claim 1, wherein the handle comprises a pair of parallel u-shaped handles. 9. The radioisotope elution system of claim 8, wherein the top surface of the shield lid is recessed below the top plane of the auxiliary shield. 10. The radioisotope elution system of claim 1, wherein the at least one aperture comprises an eluent aperture and an elution tool aperture defined through the shield lid.