Service manual

STP 11-25R13-SM-TG
T - 20
(2) Radiation levels are maintained so that an individual will not receive a radiation dose in excess
of 2 millirems in any one hour.
(3) Radiation levels are maintained so that an individual will not receive a dose in excess of 100
millirems in any seven consecutive days if he were continuously present in the area.
(4) Airborne radioactivity will not exceed 2 x 10
-7
uCi/ml for storage of tritium items and 2 x 10
-12
uCi/ml for storage of radium items.
c. Radiological Protection Officer (RPO). An individual designated by the Commander to provide
consultation and advice on the degree of hazards associated with radiation and the effectiveness of
measures to control these hazards. This individual shall be technically qualified by virtue of his
education, military training, and professional experience to assure a capability commensurate with the
assignment. The term Radiological Protection Officer is not intended to denote a commissioned status
within the Army. Personnel assigned as Radiological Protection Officers will give priority to radiation
protection tasks over other assigned tasks.
d. Radioisotope. A radioactive form of an element, such as Radium (Ra226), Cobalt (Co6O), or
Krypton (Kr85).
e. Curie (Ci). A unit of activity defined as a quantity of radioactive material in which the number of
nuclear transformations per second is 3.7 x 10
10
. A millicurie (mCi) is 1/1,000 of a curie. A microcurie
(uCi) is 1/1,000,000 of a curie.
f. Sealed Source. Radioactive material that is encased in a container designed to prevent escape
or leakage of the radioactive material or its daughter products.
g. Radioactive Waste. Unwanted radioactive material or material contaminated with radioactive
isotopes. Radioactive waste includes property that was originally radioactive but has been contaminated
to such an extent that it is economically unsound to decontaminate or contamination cannot be reduced
to a safe level. Decontamination procedures and techniques are contained in TM 3-220 and AR 700-64.
T-31. Use.
a. The amount of radioactive material in an individual item used by the US Army (other than
calibration equipment) is generally quite small and each individual item has been designed to function
without subjecting personnel to any significant radiation hazard. This is in keeping with Department of the
Army policy of reducing the exposure of personnel to ionizing radiation to a minimum.
b. Department of the Army technical manuals contain specific instructions applicable to the
operation and maintenance of equipment containing radioactive components. General guidance for use
and handling of radioactive components is as follows:
(1) Personnel will not tamper with radioactive devices or expose the radioactive materials in any
way.
(2) Defective, broken, or contaminated devices constitute the greatest hazard created by these
radioactive components. When broken or damaged, these items should be handle very carefully.
c. Items used in radiation-controlled areas will be handled in accordance with the procedures and
requirements given in 32d(7).