Source range field calibration fixture

Details Source range field calibration fixture Source range field calibration fixture

1990-02-27

1991-07-16

Hannaher, Constantine

Radiant energy

Calibration or standardization methods

2504971, 2505061, G01D 1800, G12B 1300

Patent

active

050327194

ABSTRACT:
A portable dosimeter calibration device has a shielded container with a cover, and providing a cavity in which dosimeters may be spaced about a central shielded compartment. An elongated carrier rod has a radiation source adjacent its lower end and extends outwardly of the cover. The end of the rod with the radiation source is normally seated in a shielded well of the compartment in a first position of the rod, and the rod may be secured in a second elevated position in which it is aligned with a radiation passage in the shielding of the compartment to expose the dosimeter to radiation.

REFERENCES:
patent: 2820905 (1954-06-01), Schloss
patent: 2945129 (1960-07-01), Swift et al.
patent: 3107299 (1963-10-01), Jachter
patent: 3657541 (1972-04-01), Deutsch et al.
patent: 4069423 (1978-01-01), Garrett
patent: 4152600 (1979-05-01), Berry
patent: 4406947 (1983-09-01), Burton et al.
patent: 4499375 (1985-02-01), Jaszczak
patent: 4524279 (1985-06-01), Christianson et al.

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