OAR 333-123-0140
Superficial Electronic Brachytherapy: Facility Design Requirements

(1) Treatment room shielding shall be adequate to meet the requirements of division 120 of this chapter.
(2) Treatment room facility design information must be submitted to the Authority prior to:
(a) The installation of a new superficial electronic brachytherapy device.
(b) The installation of a superficial electronic brachytherapy device of a higher energy than the device currently being operated by the registrant.
(3) The facility shall be designed such that no individual other than the patient and operator are in the treatment room during radiation therapy treatment and the operator must be protected by a barrier sufficient to meet the requirements of division 120 of this chapter.
(4) In addition to shielding adequate to meet requirements of division 120 of this chapter, the treatment room must meet the following design requirements:
(a) The room where the superficial electronic brachytherapy device is located must be secured to prevent unauthorized entry.
(b) Treatment rooms must have warning lights, in a readily observable position (preferably at eye level) outside of all access doors to the therapy room. The warning lights must indicate when the useful beam is “ON” or when the room is being used for therapy purposes.
(c) All entrance doors, including doors to any interior booths, must have safety interlocks that require the doors to be closed before treatment can be initiated or continued. If the radiation beam is interrupted by any door opening, the machine must be incapable of resuming operation with manual re-initiation at the control panel, and the machine must remain inoperable until the door is closed. In addition:
(A) All safety interlocks must be designed so that any defect or component failure in the safety interlock system prevents or terminates operation of the superficial electronic brachytherapy device.
(B) When the door to the treatment room is opened while the X-ray tube is activated, the air kerma rate at a distance of one meter from the source must be reduced to less than 1 mGy (100 mRad) per hour.
(d) The treatment room must be designed such that the operator can continuously observe the patient during treatment. Specifically:
(A) The viewing system must be configured so the operator can visually observe the patient from the control panel;
(B) Windows, mirrors, closed-circuit television or an equivalent viewing system must permit continuous observation of the patient following positioning and during irradiation and must be so located that the operator may observe the patient from the treatment control panel. The superficial electronic brachytherapy device must not be used for patient irradiation unless at least one viewing system is operational.
(C) The treatment room must have continuous two-way aural communication between the patient and the operator at the control panel.
(D) The superficial electronic brachytherapy device must not be used for irradiation of patients unless continuous two-way aural communication is possible.
(e) The control panel must:
(A) Indicate whether electrical power is available at the control panel and if activation of the radiation is possible;
(B) Indicate whether radiation is being produced; and
(C) Include an access control (locking) device that will prevent unauthorized use of the superficial electronic brachytherapy device.
(f) Emergency cutoff switches. At least one emergency power cutoff switch must be located in the radiation therapy room and must terminate all equipment electrical power including radiation and mechanical motion. All emergency power cutoff switches must include a manual reset so that the superficial electronic brachytherapy device cannot be restarted from the unit’s control console without resetting the emergency cutoff switch.

Source: Rule 333-123-0140 — Superficial Electronic Brachytherapy: Facility Design Requirements, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-123-0140.

333–123–0001
Purpose and Scope 333–123–0005
Definitions 333–123–0010
General Requirements, Operating Procedures, Surveys, Dosimetry, and Instrument Calibration for Facilities Using Therapeutic Radiation Machines 333–123–0015
Training and Qualification Requirements for Individuals in the External Beam Radiation Therapy Area 333–123–0020
Reports and Notifications of Unplanned Medical Treatment 333–123–0025
Requirements for Therapeutic Radiation Machines 333–123–0030
Facility Design Requirements for Therapeutic Radiation Machines 333–123–0035
Calibration, Acceptance Testing and Commissioning of Therapeutic Radiation Machines 333–123–0040
Quality Assurance And Safety Checks 333–123–0045
Quality Assurance Program 333–123–0050
Qualified Medical Physicist Support in Facilities Having Therapeutic Radiation Machines with Energies of 1 Mv and Above 333–123–0055
Electronic Brachytherapy 333–123–0060
Facility Design Requirements for Electronic Brachytherapy Devices 333–123–0065
Electrical Safety for Electronic Brachytherapy Devices 333–123–0070
Control Panel Functions 333–123–0075
Timer 333–123–0080
Medical Physicist 333–123–0085
Operating Procedures 333–123–0090
Safety Precautions for Electronic Brachytherapy Devices 333–123–0095
Electronic Brachytherapy Source Calibration Measurements 333–123–0100
Periodic and Day-of-Use Quality Assurance Checks for Electronic Brachytherapy Devices 333–123–0105
Therapy Related Computer Systems 333–123–0110
Training 333–123–0115
Mobile Electronic Brachytherapy Service 333–123–0120
Superficial Electronic Brachytherapy 333–123–0125
Superficial Electronic Brachytherapy Personnel Requirements 333–123–0130
Superficial Electronic Brachytherapy: Refresher Training 333–123–0135
Superficial Electronic Brachytherapy: Activation of the Superficial Electronic Brachytherapy X-ray Tube 333–123–0140
Superficial Electronic Brachytherapy: Facility Design Requirements 333–123–0145
Superficial Electronic Brachytherapy: Calibration, Acceptance Testing and Commissioning 333–123–0150
Superficial Electronic Brachytherapy: Quality Assurance Checks 333–123–0155
Superficial Electronic Brachytherapy: Operating Procedures
Last Updated

Jun. 8, 2021

Rule 333-123-0140’s source at or​.us