Photon arrival time detection

Details Photon arrival time detection Photon arrival time detection

2007-01-02

2007-01-02

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140VT, C356S213000

Reexamination Certificate

active

10540557

ABSTRACT:
A photon arrival time detector has the form of a photocathode4from which a photoelectron is ejected by an incident photon. The photoelectron is accelerated by an applied voltage to a CCD sensor6. The voltage between the photocathode4and the CCD sensor6is time varying such that the arrival energy of the electron at the CCD sensor6depends upon the time of its arrival at the photocathode4. Thus, the arrival time of the photon is represented by the intensity of the pixel event recorded by the CCD sensor6.

REFERENCES:
patent: 4603250 (1986-07-01), Contini et al.
patent: 6121600 (2000-09-01), Estrera et al.
patent: 6906318 (2005-06-01), Bateman et al.
patent: 6940589 (2005-09-01), Suyama et al.
International Search Report of PCT/GB2004/000324, mailed Jun. 1, 2004.
GB Search Report of GB 0302868.5, dated Oct. 28, 2003.

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