Radiation shutter, especially for a laser

Details Radiation shutter, especially for a laser Radiation shutter, especially for a laser

1981-08-17

1983-11-15

Sikes, William L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

2504981, G05D 2502

Patent

active

044152310

ABSTRACT:
The radiation emitted by a radiation source, such as a laser, is substantially prevented from exiting from the radiation source by a shutter in the radiation path. To make the shutter substantially fail-safe, two filter and/or diaphragm systems are switchable into the radiation path in series fashion in that one system is located behind the other system as viewed in the radiation direction. Sensors sense the effective or ineffective position of the respective system. Each system has an actuator for bringing the respective radiation stopping system into or out of the radiation stopping position in response to a control signal provided by the sensor of the respective other system.

REFERENCES:
patent: 4033693 (1977-07-01), Payrhammer et al.

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