Patent Number: 
Section: claims

1. A system for accommodating a solid target, a liquid target and a gaseous target in an accelerator, comprising:a rotating target changer having four ports, one of which for accommodating a liquid target and another of which for accommodating a gaseous target, and a service position, and a feed through slot dimensioned for passage of the solid target;an insert having a cavity with a radial circumference, the cavity radial circumference in communication with the feed through slot and passing the solid target therethrough;a piston slidably received and retained within the insert cavity before the target is loaded into the insert;a cylinder coupled to the piston, which displaces the piston in one of three positions within the cavity; anda bracket coupled to the insert, cylinder and target changer for securing the insert, piston and cylinder to the target changer in one of the ports. 2. The system of claim 1, wherein the target changer is rotatable between a first position and a second position for the solid target. 3. The system of claim 2, wherein the first position is the service position and the second position is a beam position. 4. The system of claim 1, wherein the target changer is rotatable between a first position and a second position for the solid target. 5. The system of claim 1, wherein the target changer feed through slot is in communication with at least one insert slot defined within the cavity radial circumference which conveys the solid target between the insert cavity and feed through slot. 6. The system of claim 5, wherein the insert defines a second insert slot which conveys the solid target out of the insert cavity while the piston remains retained therein. 7. The system of claim 6, wherein the piston includes a tab translatable over the second insert slot which prevents passage of the solid target out of the insert cavity. 8. A system for accommodating a solid target in an accelerator, comprising:a rotating target changer having four ports, one of which for accommodating a liquid target and another of which for accommodating a gaseous target, and a feed through slot dimensioned for passage of the solid target;an insert for passage of the solid target therethrough having:a cavity with a radial circumference and first and second axial openings;a piston slidably received within the first opening during target passage through the insert; andat least one insert slot defined within the cavity between the piston and second opening that is in communication with the feed through slot and receiving the solid target therein when the target changer is in a load position;a cylinder coupled to the piston, which displaces the piston within the cavity; anda bracket coupled to the insert, cylinder and target changer. 9. The system of claim 8, wherein the piston includes a tab translatable over a second insert slot which prevents passage of the solid target. 10. The system of claim 8, wherein the target changer is rotatable between a first position and a second position for the solid target. 11. The system of claim 10, wherein the first position is a service position and the second position is a beam position.