410 IAC 5-4-2 - Radiation dose to individuals in restricted areas[1/]
Authority: IC 16-41-35-26; IC 16-41-35-29
Affected: IC 16-41-35
Sec. 2.
(a) In
accordance with the provisions of
410
IAC 5-4-3(a), and except as provided
in 410 IAC 5-4-2(b), no licensee or registrant shall possess, use, receive, or
transfer sources of radiation in such a manner as to cause any individual in a
restricted area to receive in any period of one calendar quarter from all
sources of radiation in the licensee's or registrant's possession a total
occupational dose in excess of the standards specified in the following table:
| Rems per Calendar Quarter | |
| Whole body; head and trunk; active blood-forming organs; lens of eyes; or gonads | ........................ 1 1/4 |
| Hands and forearms; feet and ankles | ....................... 18 3/4 |
| Skin of whole body | ........................ 7 1/2 |
1/ For determining the doses specified in 410 IAC 5-4-2 a dose from x or gamma rays up to 10 MeV may be assumed to be equivalent to the exposure measured by a properly calibrated appropriate instrument in air at or near the body surface in the region of the highest dose rate.
(b) A
licensee or registrant may permit an individual in a restricted area to receive
a total occupational dose to the whole body greater than that permitted under
410 IAC 5-4-2(a), provided:
(1) During any
calendar quarter, the total occupational dose to the whole body from sources of
radiation in the licensee's or registrant's possession shall not exceed 3
rems;
(2) The dose to the whole
body, when added to the accumulated occupational dose to the whole body, shall
not exceed 5(N-18) rems where "N" equals the individual's age in years at his
last birthday; and
(3) The licensee
or registrant has determined the individual's accumulated occupational dose to
the whole body on board form "Y" or on a clear and legible record containing
all the information required in that form and has otherwise complied with the
requirements of
410
IAC 5-4-3. As used in 410 IAC 5-4-2(b), "dose to the
whole body" shall be deemed to include any dose to the whole body, gonads,
active bloodforming organs, head and trunk, or lens of eye.
Notes
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