Target pedestal assembly and method of preserving the target

A target pedestal assembly for a radiation delivery device, the target pedestal assembly comprising:

• a housing coupled to a linear accelerator of the radiation delivery device, the housing defining a cavity and a channel adjacent to the cavity, the channel including a first flow diverter at a first end of the channel and a second flow diverter at a second end of the channel;
• a target positioned within the cavity and rotationally coupled to the housing, a portion of the target positioned within the channel, the target including a serrated edge arranged around a perimeter of the target;
• and
• a cooling medium positioned within the cavity and the channel, the target being protected with a material sufficient to reduce chemical reactivity between the target and the cooling medium.

A target pedestal assembly for a radiation delivery device, the target pedestal assembly comprising:

• a housing including a cavity and a cooling medium flowing within the cavity;
• and
• a target comprising tungsten and positioned within the cavity, the target submerged in the cooling medium, the target being protected with a material sufficient to reduce chemical reactivity between the target and the cooling medium, and
• wherein the cooling medium flowing within the cavity propels rotation of the target.

A target pedestal assembly for a radiation delivery device, the target pedestal assembly comprising:

• a housing including a cavity and a cooling medium flowing within the cavity;
• and
• a target comprising tungsten and positioned within the cavity, the target submerged in the cooling medium, the target being protected with a material sufficient to reduce chemical reactivity between the target and the cooling medium;
• and
• a pin configured to rotationally couple the target to the housing.