Ultimately attainable time resolution in the Ag-O-Cs photocathode plane of the streak tube

A. I. Rabinovich

doi:10.1117/12.209599

30 May 1995 Ultimately attainable time resolution in the Ag-O-Cs photocathode plane of the streak tube

A. I. Rabinovich

Proceedings Volume 2513, 21st International Congress on: High-Speed Photography and Photonics; (1995) https://doi.org/10.1117/12.209599
Event: High-Speed Photography and Photonics: 21st International Congress, 1994, Taejon, Korea, Republic of

Abstract

Within the framevork of "one-event losses" theory the following formula is obtained for t -pulse radiation response aD) Jr Q rrt ,C p LA cos ix z xexp ( ' c ° ) u I on(t, L / Ucosf) G(#ii: I 0 out oc(OL/Ucsf) RadI at i on from the vacuum s i de ( "di rect" rad i at i on) corresponds z=i and " }( 4. cos I "; radi at i on from the other s i dc (,' ind i rect" rad iat ion) corresponds e arid "ç csa". Q - r'adiatiori pulse energy; m - defines the fraction of photoactive absorption; L - probability of absorption of radiation; p - probability of passing by the electron of the harrier at the vacuum boundar'y; u - photoelectron velocity in the conducting band; P - angle between normal to vacuum boundary and the elect1rori trajectory; K - probability of loss of energy by an electron required for emission per unite of distance; L thickness of photosensitive layer. When indirect radiation the time resolution corresponds to and according to our estimation (for When direct radiation the time resolution is equal T0T -14accord 1 ng to our est imat i on T0 (0.6 ÷ 3)xlO at contrast 0. (for = i.O6pim). For determine T one must take into account photocurrent fluctuations arid Coulomb's interaction.

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A. I. Rabinovich "Ultimately attainable time resolution in the Ag-O-Cs photocathode plane of the streak tube", Proc. SPIE 2513, 21st International Congress on: High-Speed Photography and Photonics, (30 May 1995); https://doi.org/10.1117/12.209599

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