OAR 333-123-0095
Electronic Brachytherapy Source Calibration Measurements

(1)

Calibration of the electronic brachytherapy source output for an electronic brachytherapy device shall be performed by, or under the direct supervision of a Qualified Medical Physicist.

(2)

Calibration of the electronic brachytherapy source output shall be made for each electronic brachytherapy source annually, or after any repair affecting the X-ray beam generation, or when indicated by the electronic brachytherapy source quality assurance checks.

(3)

Calibration of the electronic brachytherapy source output shall utilize a calibration procedure in accordance with OAR 333-123-0010 (General Requirements, Operating Procedures, Surveys, Dosimetry, and Instrument Calibration for Facilities Using Therapeutic Radiation Machines)(5). The dosimetry system shall have been calibrated at the applicable electronic brachytherapy source energy.

(4)

Calibration of the electronic brachytherapy source output shall include, as applicable, determination of:

(a)

The output within two percent of the expected value, if applicable, or determination of the output if there is no expected value;

(b)

Timer accuracy and linearity over the typical range of use;

(c)

Proper operation of back-up exposure control devices;

(d)

Evaluation that relative dose distribution around the source is within the limit recommended by the manufacturer or recommendations from a recognized national professional association in electronic brachytherapy (when available); and

(e)

Source positioning accuracy to within 1 mm within the applicator.

(5)

Calibration of the X-ray source output shall be in accordance with current published recommendations from a recognized national professional association with expertise in electronic brachytherapy (when available). In the absence of a calibration protocol published by a national professional association, the manufacturer’s calibration protocol shall be followed.

(6)

The registrant shall maintain a record of each calibration in an auditable form for the duration of the registration. The record shall include:

(a)

The date of the calibration;

(b)

The manufacturer’s name, model number and serial number for the electronic brachytherapy device and a unique identifier for its electronic brachytherapy source;

(c)

The model numbers and serial numbers of the instrument(s) used to calibrate the electronic brachytherapy device; and

(d)

The name and signature of the Qualified Medical Physicist responsible for performing the calibration.

Source: Rule 333-123-0095 — Electronic Brachytherapy Source Calibration Measurements, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-123-0095.

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 333-123-0095’s source at or​.us