Electric lamp and discharge devices – Photosensitive – Photomultiplier
Patent
1981-11-20
1983-11-15
Moore, David K.
Electric lamp and discharge devices
Photosensitive
Photomultiplier
313105R, 313532, H01J 4000
Patent
active
044158327
ABSTRACT:
A photomultiplier tube comprises an electron multiplier assembly including a pair of oppositely-disposed insulative support spacers. A plurality of elements including an ultimate dynode and an anode are affixed to the support spacers. The ultimate dynode comprises a relatively inflexible multilateral hollow member having two plane-face surfaces lying at an acute angle to one another and terminating at a lower transverse edge. The ultimate dynode includes dynode mounting tabs extending from opposing ends thereof for affixing the ultimate dynode to the support spacers. The anode includes a substantially flat electron permeable mesh portion spaced from one of the plane-face surfaces of the ultimate dynode. Anode mounting tabs extend from opposing ends thereof for affixing the anode to the support spacers. Electrical leakage isolation slots are formed in the support spacers to increase the electrical leakage path length across the support spacers between the ultimate dynode and the anode.
REFERENCES:
patent: 296527 (1904-04-01), Butterwick
patent: 2200722 (1940-05-01), Pierce et al.
patent: 2245624 (1941-06-01), Teal
patent: 2866914 (1958-12-01), Lallemand
patent: 2952499 (1960-09-01), Carson
patent: 3260878 (1966-07-01), Legoux
patent: 3433944 (1969-03-01), George
Faulkner Richard D.
Henry Dale V.
Muth David L.
Coughlin Jr. Vincent J.
Irlbeck Dennis H.
Moore David K.
RCA Corporation
Whitacre Eugene M.
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