6 Colo. Code Regs. § 1007-1-9.9

Current through Register Vol. 47, No. 11, June 10, 2024

Section 6 CCR 1007-1-9.9 - Operating Procedures

9.9.1 Each particle accelerator, when not in operation, shall be secured to prevent unauthorized use.

9.9.2 The safety interlock system shall not be used to turn off the accelerator beam except in an emergency.

9.9.3 Safety Checks.

9.9.3.1 All safety and warning devices, including interlocks, shall be checked for proper operation at intervals not to exceed three months. Safety checks shall assure, as appropriate, proper operation of:

(1) Electrical interlocks at each room entrance;

(2) Timer, dose terminator, emergency off and door interlocks;

(3) Beam condition indicator lights on the accelerator unit, on the control panel, and in the facility;

(4) Viewing systems;

(5) Doors from inside and outside the accelerator room; and

(6) Electrically assisted room doors with the accelerator unit electrical power turned off.

9.9.3.2 A registrant shall promptly repair any system identified in 9.9.3.1 that is not operating properly. The accelerator shall not be used until all repairs are completed.

9.9.3.3 Records.

(1) A registrant shall maintain a record of the results of each safety check required by 9.9.3.1 for three (3) years at the accelerator facility for inspection by the Department.

(2) The record shall include:

(a) The date of the safety check;

(b) The manufacturer's name, model number, and serial number for the accelerator;

(c) The manufacturer's name, model number, serial number and calibration date of the instrument used to conduct any measurements;

(d) Notations indicating the operability of each entrance door interlock, each electrical or mechanical stop, each beam condition indicator light, the viewing system, and doors: and

(e) The signature of the individual who performed the periodic spot checks.

9.9.3.4 If the result of the safety checks required in 9.9.3.1 indicate the malfunction of any system specified in 9.9.3.1, the registrant shall lock the control console in the "off" position and not use the unit except as may be necessary to repair, replace, or check the malfunctioning system.

9.9.4 Electrical circuit diagrams of the accelerator and the associated safety interlock systems shall be kept current and maintained for inspection by the Department and shall be available to the operator at each accelerator facility.

9.9.5 If, for any reason, it is necessary to intentionally bypass a safety interlock or interlocks, such action shall be:

9.9.5.1 Authorized by the Radiation Safety Officer;

9.9.5.2 Recorded in a permanent log and a notice posted at the accelerator control console; and

9.9.5.3 Terminated as soon as possible.

9.9.6 Safety Instructions.

9.9.6.1 A copy of the current operating and the emergency procedures shall be maintained at the accelerator control panel. These instructions shall inform the operator of:

(1) The procedure to be followed if the operator is unable to turn the accelerator off with controls at the control panel or any other abnormal operation occurs; and

(2) The names and telephone numbers of the authorized users and Radiation Safety Officer to be immediately contacted if the accelerator or console operates abnormally; and

9.9.6.2 A registrant shall provide instruction in the topics identified in 9.9.6.1 to each individual who operates an accelerator and shall provide appropriate refresher training to each individual operator at intervals not to exceed one year.

9.9.6.3 A registrant shall maintain a record of each individual receiving instructions required by 9.9.6.2, a description of the instruction, the date of instruction, and the name of the individual who gave the instruction for three (3) years.

6 CCR 1007-1-9.9

Colorado Register, Vol 37, No. 14. July 25, 2014, effective 8/14/2014

38 CR 02, January 25, 2015, effective 2/14/2015

38 CR 05, March 10, 2015, effective 3/30/2015

38 CR 12, June 25, 2015, effective 7/15/2015

38 CR 14, July 25, 2015, effective 8/14/2015

39 CR 02, January 25, 2016, effective 2/14/2016

39 CR 16, August 25, 2016, effective 9/14/2016

39 CR 22, November 25, 2016, effective 12/15/2016

40 CR 11, June 10, 2017, effective 6/30/2017

40 CR 20, October 25, 2017, effective 11/14/2017

42 CR 24, December 25, 2019, effective 1/14/2020

43 CR 14, July 25, 2020, effective 8/14/2020

43 CR 18, September 25, 2020, effective 10/15/2020

44 CR 11, June 10, 2021, effective 7/15/2021

44 CR 14, July 25, 2021, effective 8/14/2021

45 CR 22, November 25, 2022, effective 12/15/2022