Electric lamp and discharge devices – With temperature modifier – For lead-in-seal or stem protection
Patent
1992-05-19
1994-08-02
Yusko, Donald J.
Electric lamp and discharge devices
With temperature modifier
For lead-in-seal or stem protection
3133591, 315 541, 250396R, H01J 2300
Patent
active
053349431
ABSTRACT:
In a linear accelerator which accelerates a beam of charged particles along a beam axis and which comprises a conductive cylinder defining a hollow space, first through fourth conductive vanes are arranged clockwise in the hollow space around the beam axis with an azimuthal interval of 90.degree. left between two adjacent ones of the vanes and are electrically connected to the conductive cylinder so as to be excited by a TE.sub.11N mode on supply of electric power to the conductive cylinder and to induce a quadrupole electric field among the first through the fourth conductive vanes where N is one of 0, 1, 2, . . . . In the TE.sub.11N mode, (N+1) sets of excitation members are arranged each of which is composed of first and second conductive plates opposite to each other and projected towards the beam axis, a first intermediate conductive member connected to two of the first through the fourth conductive vanes, and a second intermediate conductive member connected to the remaining conductive vanes.
REFERENCES:
patent: 4490648 (1984-12-01), Lancaster et al.
patent: 4992744 (1991-02-01), Fujita et al.
Patel Ashok
Sumitomo Heavy Industrie's, Ltd.
Yusko Donald J.
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