(A) The personnel
monitoring program shall meet the applicable requirements of 105 CMR
120.200.
(B) When performing
industrial radiographic operations the following shall apply:
(1) The licensee or registrant shall not
permit an individual to act as a radiographer, or radiographer trainee unless
each individual wears, on the trunk of the body at all times during
radiographic operations, a combination of a direct-reading pocket dosimeter or
an electronic personal dosimeter, an alarming ratemeter, and a personnel
monitoring badge that is processed and evaluated by an accredited NVLAP
processor. At permanent radiography installations where other appropriate
alarming or warning devices are in routine use, the wearing of an alarming
ratemeter is not required.
(2)
Pocket dosimeters shall meet the criteria in ANSI N13.5-1972 and shall have a
range of zero to two millisieverts (zero to 200 millirems).
(3) Pocket dosimeters shall be recharged at
the start of each work shift.
(4)
Exposure indicated by each pocket dosimeter shall be recorded at the beginning
of and at the end of each work shift.
(5) If an individual's pocket dosimeter is
discharged beyond its range (i.e., goes "off-scale"), or if an individual's
electronic personal dosimeter reads greater than two millisieverts (200 mrem),
industrial radiographic operations by that individual shall cease and the
individual's personnel monitoring badge shall be processed immediately. The
individual shall not return to work with sources of radiation until a
determination of his/her radiation exposure has been made.
(6) Each personnel monitoring badge shall be
assigned to and worn by only one individual.
(7) If a personnel monitoring badge is lost
or damaged, the worker shall cease work immediately until a replacement
personnel monitoring badge is provided and the exposure is calculated for the
time period from issuance to loss or damage of the personnel monitoring
badge.
(8) Each alarm dosimeter
must:
(a) Be checked to ensure that the alarm
functions properly (sounds) prior to use at the start of each shift.
(b) Emit an alarm signal at a preset dose
rate of five mSv/hr (500 mr/hr).
(c) Require special means to change the
preset alarm function; and
(d) Be
tested at periods not to exceed one year for correct response to radiation.
Acceptable dosimeters must alarm within plus or minus 20% of the true radiation
dose rate.
(C) Records of pocket dosimeter readings of
personnel exposures shall be maintained for five years by the licensee or
registrant for Agency inspection. If the dosimeter readings were used to
determine external radiation dose (i.e., no TLD, OSL or film
badge exposure records exist), the records shall be maintained until the Agency
authorizes disposal.
(D) Pocket
dosimeters shall be checked for correct response to radiation at periods not to
exceed one year. Acceptable dosimeters shall read within plus or minus 20% of
the true radiation exposure. Records of pocket dosimeter calibrations shall be
maintained for five years by the licensee or registrant for Agency
inspection.
(E) Processors of film
badge, TLD and OSL devices must be certified by the NVLAP.
