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Increasing Terminal Voltage of Accelerators Disclosure Number: IPCOM000079528D
Original Publication Date: 1973-Jul-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 42K

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Related People

Hammer, WN: AUTHOR [+1]


A method has been devised for increasing the terminal voltage of ion accelerators.

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Increasing Terminal Voltage of Accelerators

A method has been devised for increasing the terminal voltage of ion accelerators.

As seen in the figure, a beam of ions such as helium or argon, is accelerated through a high-voltage tube from left to right, and such ions exit at the right to be used by the operator for whatever purposes he wishes. Part of the structure of the accelerator tube consists of aluminum rings 2, separated by ceramic spacers
4. The terminal voltage of the ion accelerator is limited by the breakdown, i.e., the limiting dielectric strength, of the ceramic spacers.

It has been found that by unfocusing the ion beam 6, the latter will cause atoms of aluminum to be sputtered or dislodged from the aluminum rings. By introducing oxygen into the accelerator during the time that the ion beam is dislodging aluminum atoms, a layer 8 of Al(2)O(3) forms on the ceramic rings. Such layer increases the breakdown voltage of the ion accelerator. When such a procedure was applied to an accelerator having a 2.0 MeV breakdown voltage, the terminal voltage was increased to 3.3 MeV.


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