Detection cell, a detector, a sensor, and a spectroscope using a

Details Detection cell, a detector, a sensor, and a spectroscope using a Detection cell, a detector, a sensor, and a spectroscope using a

1993-10-05

1995-01-10

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

505848, H01J 4014

Patent

active

053810015

ABSTRACT:
The present invention relates mainly to a detection cell, a matrix detector using such cells, a sensor including such a detector, and a spectroscope including such a sensor. The invention provides a photon detection cell comprising a superconducting element, in particular of niobium, that is sensitive to photons of the radiation to be detected or to phonons generated by such photons, in particular by breaking Cooper pairs into quasi-particles and by means of a superconducting tunnel junction including a superconducting electrode, the cell being delimited by a plurality of spaced-apart superconducting tunnel junctions that are distributed around the periphery of the cell. The device of the invention is applicable to counting photons, and thus mainly to acquiring and processing information coming from faint radiation sources.

REFERENCES:
patent: 5179072 (1993-01-01), Bluzer
patent: 5311020 (1994-05-01), Silver et al.
Nuclear Instruments and Methods in Physics Research, vol. A313, No. 1, 1 Mar. 1992, pp. 173-195, N. Rando et al.
IEEE Transactions on Applied Superconductivity, vol. 3, No. 1, Mar. 1993, pp. 2080-2083, N. Rando et al.
IEEE Transactions on Magnetics, vol. 25, No. 2, Mar. 1989, pp. 1351-1353, P. Gare et al.
Nuclear Instruments and Methods in Physics Research, vol. A288, No. 2,3, Mar. 15, 1990, pp. 541-548 F. Hebrank et al.

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