10 CFR 35.2645 - Records of periodic spot-checks for gamma stereotactic radiosurgery units.

§ 35.2645 Records of periodic spot-checks for gamma stereotactic radiosurgery units.
(a) A licensee shall retain a record of each spot-check for gamma stereotactic radiosurgery units required by § 35.645 for 3 years.
(b) The record must include—
(1) The date of the spot-check;
(2) 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;
(3) An assessment of timer linearity and accuracy;
(4) The calculated on-off error;
(5) A determination of trunnion centricity;
(6) The difference between the anticipated output and the measured output;
(7) An assessment of source output against computer calculations;
(8) 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
(9) 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.
(c) A licensee shall retain a copy of the procedures required by § 35.645(b) until the licensee no longer possesses the gamma stereotactic radiosurgery unit.

Title 10 published on 2014-01-01

no entries appear in the Federal Register after this date.

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United States Code

Title 10 published on 2014-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 10 CFR 35 after this date.

  • 2014-07-21; vol. 79 # 139 - Monday, July 21, 2014
    1. 79 FR 42224 - Medical Use of Byproduct Material—Medical Event Definitions and Training and Experience
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      NUCLEAR REGULATORY COMMISSION
      Draft guidance; request for comment.
      Submit comments by November 18, 2014. Comments received after this date will be considered if it is practical to do so, but the NRC is able to assure consideration only for comments received on or before this date.
      10 CFR Parts 30, 32 and 35