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CFR › Title 10 › Chapter I › Part 35 › Subpart L › Section 35.2645

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

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§ 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 2012-01-01

The following are only the Rules published in the Federal Register after the published date of Title 10.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2013-03-19; vol. 78 # 53 - Tuesday, March 19, 2013
    1. 78 FR 16922 - Physical Protection of Byproduct Material
      GPO FDSys XML | Text
      NUCLEAR REGULATORY COMMISSION
      Final rule.
      Effective Date: This final rule is effective on May 20, 2013. Compliance Date: Compliance with this final rule is required on March 19, 2014.
      10 CFR Parts 20, 30, 32, 33, 34, 35, 36, 37, 39, 51, 71, and 73

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

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United States Code
U.S.C. : Title 42 - THE PUBLIC HEALTH AND WELFARE

§ 2014 - Definitions

§ 2021 - Cooperation with States

§ 2021b - Definitions

§ 2111 - Domestic distribution

§ 2232 - License applications

§ 2233 - Terms of licenses

Title 10 published on 2012-01-01

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

  • 2013-03-19; vol. 78 # 53 - Tuesday, March 19, 2013
    1. 78 FR 16922 - Physical Protection of Byproduct Material
      GPO FDSys XML | Text
      NUCLEAR REGULATORY COMMISSION
      Final rule.
      Effective Date: This final rule is effective on May 20, 2013. Compliance Date: Compliance with this final rule is required on March 19, 2014.
      10 CFR Parts 20, 30, 32, 33, 34, 35, 36, 37, 39, 51, 71, and 73