Current through Register Vol. 30, No. 38, September 20, 2024
A. A licensee shall control access at each
entrance to a treatment room.
B. A
licensee shall equip each entrance to the treatment room with an electrical
interlock system that will:
1. Prevent the
operator from initiating the treatment cycle unless each treatment room
entrance door is closed;
2. Cause
each source to be shielded when an entrance door is opened; and
3. Prevent any source from being exposed
following an interlock interruption until all treatment room entrance doors are
closed and the source's on-off control is reset at the console.
C. A licensee shall require any
individual entering the treatment room to assure, through the use of
appropriate radiation monitors, that radiation levels have returned to ambient
levels.
D. Except for low-dose
remote afterloader units, a licensee shall construct or equip each treatment
room with viewing and intercom systems to permit continuous observation of the
patient or the human research subject from the treatment console during
irradiation.
E. For licensed
activities where sources are placed within the patient's or human research
subject's body, a licensee shall only conduct treatments which allow for
expeditious removal of a decoupled or jammed source.
F. In addition to the requirements specified
in subsections (A) through (E), a licensee shall:
1. For medium dose-rate and pulsed dose-rate
remote after-loader units, require:
a. An
authorized medical physicist and either an authorized user or a physician,
under the supervision of an authorized user, who has been trained in the
operation and emergency response for the unit, to be physically present during
the initiation of all patient treatments involving the unit; and
b. An authorized medical physicist and either
an authorized user or an individual, under the supervision of an authorized
user, who has been trained to remove each source applicator in the event of an
emergency involving the unit, to be immediately available during continuation
of all patient treatments involving the unit.
2. For high dose-rate remote afterloader
units, require:
a. An authorized user and an
authorized medical physicist to be physically present during the initiation of
all patient treatments involving the unit; and
b. An authorized medical physicist and either
an authorized user or a physician, under the supervision of an authorized user,
who has been trained in the operation and emergency response for the unit, to
be physically present during continuation of all patient treatments involving
the unit.
3. For gamma
stereotactic radiosurgery units, require an authorized user and an authorized
medical physicist to be physically present throughout all patient treatments
involving the unit. As used in this provision, physically present means to be
within hearing distance of normal voice, and does not include the use of
portable communication devices, intercoms, or other devices that could be used
to amplify the human voice.
4.
Notify the radiation safety officer, or radiation safety officer's designee,
and an authorized user as soon as possible if the patient or human research
subject has a medical emergency or dies.
G. A licensee shall have applicable emergency
response equipment available near each treatment room to respond to a source:
1. Remaining in the unshielded position;
or
2. Lodged within the patient
following completion of the treatment.
