Washington Administrative Code
Title 246 - Health, Department of
RADIATION
Chapter 246-240 - Radiation protection Medical use of radioactive material
OTHER MEDICAL USES OF RADIOACTIVE MATERIAL OR RADIATION FROM RADIOACTIVE MATERIAL RECORDS
Section 246-240-623 - Records of periodic spot-checks for gamma stereotactic radiosurgery units
Universal Citation: WA Admin Code 246-240-623
Current through Register Vol. 24-18, September 15, 2024
(1) A licensee shall retain a record of each spot-check for gamma stereotactic radiosurgery units required by WAC 246-240-384 for three years.
(2) The record must include:
(a) The date of the spot-check;
(b) The manufacturer's name, model number,
and serial number for the gamma stereotactic radiosurgery unit and the
instrument used to measure the output of the unit;
(c) An assessment of timer linearity and
accuracy;
(d) The calculated on-off
error;
(e) A determination of
trunnion centricity;
(f) The
difference between the anticipated output and the measured output;
(g) An assessment of source output against
computer calculations;
(h)
Notations indicating the operability of radiation monitors, helmet
microswitches, emergency timing circuits, emergency off buttons, electrical
interlocks, source exposure indicator lights, viewing and intercom systems,
timer termination, treatment table retraction mechanism, and stereotactic
frames and localizing devices (trunnions); and
(i) The name of the individual who performed
the periodic spot-check and the signature of the authorized medical physicist
who reviewed the record of the spot-check.
(3) A licensee shall retain a copy of the procedures required by WAC 246-240-384(2) until the licensee no longer possesses the gamma stereotactic radiosurgery unit.
Statutory Authority: RCW 70.98.050. 06-05-019, § 246-240-623, filed 2/6/06, effective 3/9/06.
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