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(8) “cabinet radiography” means industrial radiography with the use of an ionizing radiation machine conducted in an enclosed, interlocked cabinet, in a manner that the

(A) radiation machine does not operate unless all openings are securely closed; and

(B) cabinet is shielded so that every location on the exterior meets conditions for an uncontrolled area;

(9) “collimator” means an adjustable beam-restricting device constructed of attenuating material used to confine a useful beam within a designated solid angle;

(10) “commissioner” means the commissioner of health;

(11) “committed dose equivalent” means the dose equivalent to organs or tissues of reference that will be received from an intake of radioactive material by an individual during the 50-year period following the uptake;

(12) “committed dose equivalent maximally exposed organ” means the largest dose to any organ from the intake of radioactive material;

(13) “committed effective dose equivalent” means the sum of the products of the weighting factors applicable to each of the body organs or tissues that are irradiated and the committed dose equivalent to each of these organs or tissues;

(14) “cone” means a type of beam-restricting device that does not permit adjustment of the beam size;

(15) “controlled area”

(A) means an area that is outside of a restricted area, but inside the site boundary, and to which access is controlled by a registrant for purposes of protection of individuals from exposure to radiation and radioactivity;

(B) does not include residential quarters, except that a separate room or rooms in a residential building may be set apart as a controlled area;

(16) “curie” means that quantity of radioactive material that decays at the rate of 3.7 x 1010 disintegrations per second;

(17) “dead-man type switch” means a switch constructed in a manner that a circuit-closing contact can only be maintained by continuous pressure by the operator;

(18) “deep dose equivalent” means the dose equivalent at a tissue depth of one centimeter used as a measure of external whole body exposure;

(19) “department” means the Department of Health;

(20) “diagnostic-type tube housing” means an x-ray tube housing constructed in a manner that the leakage X-radiation at a distance of one meter from the target cannot exceed 100