10 CFR 35.2642 - Records of periodic spot-checks for teletherapy units.

§ 35.2642 Records of periodic spot-checks for teletherapy units.
(a) A licensee shall retain a record of each periodic spot-check for teletherapy units required by § 35.642 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 of the teletherapy unit, source and instrument used to measure the output of the teletherapy unit;
(3) An assessment of timer linearity and constancy;
(4) The calculated on-off error;
(5) A determination of the coincidence of the radiation field and the field indicated by the light beam localizing device;
(6) The determined accuracy of each distance measuring and localization device;
(7) The difference between the anticipated output and the measured output;
(8) Notations indicating the operability of each entrance door electrical interlock, each electrical or mechanical stop, each source exposure indicator light, and the viewing and intercom system and doors; 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 § 35.642(b) until the licensee no longer possesses the teletherapy 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      Draft guidance; request for comment.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