T.O. 33B-1-1
6-123
c. Identification of the radiation survey instruments used including its serial number and the date
calibrated.
d. The location of the source and the orientation of the useful beam with relation to each exposure
measurement.
e. Exposure rates in all adjacent areas accessible to personnel. The location of exposure rate
measurements shall be in accordance with applicable criteria and shall be suitably identified by
drawings when appropriate.
f. An assessment of whether the measured exposure rates will result in uncontrolled areas have a total
exposure of greater than 2 mR in any one hour, or greater than 100 mR in a year, using the expected
workloads, use factors and occupancy factors for the facility.
g. A description of the existing mechanical and electrical limiting devices and safety devices that restrict
the orientation of the useful beam and position of the source or otherwise support radiation protection
efforts.
h. A statement indicating the appropriate classification of the installation (shielded or unshielded) and the
radiological design criteria for which it was designed, if available.
i. A statement of what controls are required if exposures are estimated to exceed >100 mR/year or 2 mR
in any one hour in uncontrolled areas. Engineering controls (e.g. additional shielding, physical
barriers, etc.) should always take precedence over administrative controls (e.g. restrictions on
workload).
j. Identification of the individual conducting the survey to include parent organization (plus the MOS or
GS series for Army), and the date the survey was accomplished.
k. A statement of facility compliance/non-compliance with the following directives.
(1)
If an installation is found not to comply with this publication, it SHALL be stated what action
must be taken to insure compliance.
(2)
If a resurvey will be required, it SHALL be so stated. The time frame as to when the resurvey is
required and whether or not operations shall be permitted prior to the resurvey shall be included.
6.9.9
Exposure to Radiation.
6.9.9.1
Keeping Exposures “As Low As Reasonably Achievable” (ALARA).
Exposure to radiation, even at very low dose rates, is permissible only when the benefit derived from such exposure
exceeds the risk incurred. Each individual shall strive at all times to maintain all radiation exposures "As Low As
Reasonably Achievable". No individual shall ever knowingly expose himself or cause others to be unnecessarily
exposed to radiation.
6.9.9.2
Occupational Dose Limits.
6.9.9.2.1
Dose Limits for Occupationally Exposed Adults.
The annual peacetime ionizing radiation dose received by occupationally exposed adults shall not exceed the following
limits:
a. An annual limit, which is the more limiting of –
(1)
The total effective dose equivalent (TEDE) of 5 rems (50 millisieverts (mSv)); or
