Mechanical apparatus to ensure that only pulses of radiation are

Details Mechanical apparatus to ensure that only pulses of radiation are Mechanical apparatus to ensure that only pulses of radiation are

1992-01-10

1993-08-03

Anderson, Bruce C.

Radiant energy

Radiant energy generation and sources

With radiation modifying member

2504931, 2504941, G01J 100

Patent

active

052331989

ABSTRACT:
This invention is for a mechanical apparatus which ensures that only pulses of radiation are radiated in any specific direction and a method to effect same. In the most general terms, this apparatus comprises a partway closed three-dimensional geometric surface having some thickness, but being hollow inside the partway closed portion and having at least one opening through the surface. The surface is shaped so that a desired radiation source can be placed into the hollow portion inside the surface's partway closed portion. The surface is further shaped so that radiation from the desired radiation source can pass from the hollow inside the surface's partway closed portion through the at least one opening through the surface thereby forming a radiation beam. The surface is constructed of material(s) which the wavelength(s) of the radiation from the desired radiation source will not pass through the surface. An axis for the at least partway closed surface is defined which does not intersect the at least one opening through the surface. By rotating the surface about this axis, the radiation beam revolves in space. At any specific location which the radiation beam intersects, a radiation pulse will be sensed. Other surfaces can be employed with the at least partway closed surface to further restrict the radiation pattern of the radiation beam. The surfaces can be rotated by motor or by air turbine means.

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