Far field imaging

Details Far field imaging Far field imaging

1979-11-16

1981-04-28

Smith, Alfred E.

Radiant energy

Radiation controlling means

250203R, G21K 100, G01J 120

Patent

active

042648246

ABSTRACT:
Distant radiation sources are imaged using a collimator having a multiplicity of portions, the transmissivities of the portions to radiation reaching the collimator from a given source being different from portion-to-portion for a given orientation of the collimator, regardless of the distance of the source from the collimator; these transmissivities are varied over time, and radiation passing through each portion is detected for successive values of its transmissivity.

REFERENCES:
patent: 3291988 (1966-12-01), Chope
patent: 4205228 (1980-05-01), Tosswill
Schmidt, "A Proposed X-Ray Focusing Device with Wide Field of View for Use in X-Ray Astronomy", Nuc. Instr. and Methods, 127 (2), 8-1-75, pp. 285-292.

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