Claims
- 1. In a channel plate electron multiplier of the laminated discrete dynode type wherein conductive sheets are stacked in closely spaced relation, said sheets having apertures with inner surfaces which are conductive and secondary-emissive, said apertures being aligned to form electron multiplying channels, an improved profile for said apertures comprising an input cross-section and an output cross-section which are approximately the same and a concavely shaped inner surface profile so that the majority of electrons tend to strike said inner surface close to the output end of said apertures and the gain of the multiplier is increased.
- 2. An improved profile for discrete dynode apertures in a channel plate electron multiplier as defined in claim 1 wherein said apertures are characterized by a gradually decreasing cross-section at the output end thereof.
- 3. An improved profile for discrete dynode apertures in a channel plate electron multiplier as defined in claim 2 wherein said apertures are characterized by a suddenly increasing cross-section at the input end thereof.
- 4. An improved profile for discrete dynode apertures in a channel plate electron multiplier as defined in claim 2 wherein said apertures are characterized by a gradually increasing cross-section at the input end thereof.
- 5. An improved profile for discrete dynode apertures in a channel plate electron multiplier as defined in claim 4 wherein said inner surfaces have approximately spherical form.
- 6. An improved profile for discrete dynode apertures in a channel plate electron multiplier as defined in claim 1 wherein the axial dimension of said apertures is approximately equal to the diameter of said apertures at the input end thereof.
Priority Claims (1)
Number |
Date |
Country |
Kind |
16541/73 |
Apr 1973 |
GBX |
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Parent Case Info
This is a continuation of Ser. No. 748,699, filed Dec. 8, 1976, abandoned, which is a continuation of Ser. No. 598,234, filed July 23, 1975, abandoned, which is a continuation of Ser. No. 456,374, filed Mar. 29, 1974, abandoned.
US Referenced Citations (5)
Non-Patent Literature Citations (1)
Entry |
Jares et al., "A Flat Channel System for Imaging Purposes;" Advances in Electronics and Electronic Physics, vol. 33A, 1972, Academic Press, pp. 117-122. |
Continuations (3)
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Number |
Date |
Country |
Parent |
748699 |
Dec 1976 |
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Parent |
598234 |
Jul 1975 |
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Parent |
456374 |
Mar 1974 |
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