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The Oregon Administrative Rules contain OARs filed through November 15, 2014
 
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OREGON HEALTH AUTHORITY,
PUBLIC HEALTH DIVISION

 

DIVISION 115

RADIATION SAFETY REQUIREMENTS FOR X-RAY AND HYBRID GAUGES

333-115-0001

Purpose and Scope

This Division provides special requirements for X-ray and hybrid gauges. The requirements of this Division are in addition to, and not substitutions for, applicable requirements in Divisions 100, 101, 102, 111, and 120 of these rules.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87; HD 1-1995, f. & cert. ef. 4-26-95

333-115-0005

Definitions

(1) "X-Ray Gauge" means an X-ray producing device designed and manufactured for the purpose of detecting, measuring, gauging or controlling thickness, density level or interface location.

(2) "Fail-Safe Characteristics" mean design features which cause beam port shutters to close or which otherwise prevent emergence of the primary beam upon failure of a safety or warning device.

(3) "Primary Beam" means ionizing radiation which passes through an aperture of the source housing by a direct path from the X-ray tube or a radioactive source located in the radiation source housing.

(4) "Hybrid Gauge" means a gauging device utilizing both X-ray and radioactive material sources.

(5) "Open-Beam Configuration" means a gauging system in which an individual could accidentally place some part of the body in primary beam path during normal operation.

Stat. Auth.: ORS 453.605 - 453.775
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87; HD 1-1991, f. & cert. ef. 1-8-91

Equipment Requirements

333-115-0010

Safety Device

(1) Except where impractical, an interlocking device which prevents the entry of any portion of an individual's body into the primary beam, or causes the primary beam to be shut off upon entry into its path, shall be provided.

(2) In cases where the primary radiation beam is not intercepted by the detector device under all conditions of operation, protective measures shall be provided, such as auxiliary shielding, to avoid exposure to any individual from the transmitted primary radiation.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

333-115-0015

Warning Devices

A sign bearing the words, "Warning -- X-rays (or ionizing radiation) -- Do not place hands in jaws of gauge", or equivalent, shall be so located that it is visible to any person operating, aligning or adjusting a gauging device.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

333-115-0020

Ports

Unused ports on radiation source housings shall be secured in the closed position in a manner which will prevent casual opening.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

333-115-0025

Labeling

All gauges shall be labeled with a readily discernible sign or signs bearing the radiation symbol and the words:

(1) CAUTION -- HIGH INTENSITY X-RAY BEAM, or words having a similar intent on the X-ray source housing; and

(2) CAUTION RADIATION -- THIS EQUIPMENT PRODUCES RADIATION WHEN ENERGIZED, or words having a similar intent, near any switch that energizes an X-ray tube if the radiation source is an X-ray tube; and

(3) CAUTION -- RADIOACTIVE MATERIAL, on the source housing if the radiation source is a radionuclide.

Stat. Auth.: ORS 453.605 - 453.775
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87; HD 1-1991, f. & cert. ef. 1-8-91

333-115-0030

Shutters

A visible indication of the status of the shutter shall be provided, e.g., red light indicating beam on, green light indicating beam off. This device shall be tested to ensure operations will not continue without a proper functioning warning device. On equipment installed after January 1, 1978, this device shall be of fail-safe design.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

333-115-0035

Warning Lights

(1) An easily visible light labeled with the words "BEAM ON", or words having a similar intent, shall be located:

(a) Near any switch that energizes an X-ray tube and shall be illuminated only when the tube is energized; or

(b) In the case of a radioactive source, near any switch that opens a housing shutter and which shall be illuminated only when the shutter is open.

(2) On equipment installed after January 1, 1978, warning lights shall have fail-safe characteristics.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

Area Requirements

333-115-0101

Radiation Levels

The local components of a gauge shall be so located and arranged and shall include sufficient shielding or access control that no radiation levels exists in any area surrounding the local component groups which could result in a dose to an individual present therein in excess of the dose limits given in OAR 333-120-0180. For systems using X-ray tubes, these levels shall be met at any specified tube rating.

Stat. Auth.: ORS 453.605 - 453.775
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87; HD 1-1995, f. & cert. ef. 4-26-95

333-115-0105

Surveys

(1) Radiation surveys, as required by OAR 333-120-0200, of all X-ray and Hybrid gauges sufficient to show compliance with OAR 333-115-0101 shall be performed:

(a) Upon installation of the equipment;

(b) A review of all safety devices shall be performed at least quarterly to insure their proper operation (i.e., signs, labels, interlocks, etc.);

(c) Annual surveys and monitoring to insure that operations are conducted safely;

(d) Following any change in the initial arrangement, number or type of local components in the system;

(e) Following any maintenance requiring the disassembly or removal of a local component in the system;

(f) Any time a visual inspection of the local components in the system reveals an abnormal condition;

(g) Whenever personnel monitoring devices show a significant increase over the previous monitoring period or when the readings are approaching the radiation dose limits specified in OAR 333-120-0100.

(2) Records of all reviews and surveys shall be maintained for inspection by the Authority.

Stat. Auth.: ORS 453.605 - 453.775
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87; HD 1-1991, f. & cert. ef. 1-8-91; HD 1-1995, f. & cert. ef. 4-26-95

333-115-0110

Posting

Each area or room containing any gauge shall be conspicuously posted with a sign or signs bearing the radiation symbol and the words CAUTION -- X-RAY EQUIPMENT, or words having similar intent.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

333-115-0115

Security

When not in operation, the equipment shall be secured in such a way as to be accessible to, or operable by, only authorized personnel

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

333-115-0120

Operating Requirements

Normal and Emergency operating procedures shall be written and available to all X-ray and Hybrid gauge equipment workers.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

Personnel Requirements

333-115-0201

Instructions

(1) No person shall be permitted to operate or maintain X-ray or Hybrid gauges unless such person has received instruction in and demonstrated competence with regard to:

(a) Identification of radiation hazards associated with the use of the equipment;

(b) Significance of the various radiation warning and safety devices incorporated into the equipment, or the reasons they have not been installed on certain pieces of equipment and the extra precautions required in such cases;

(c) Proper operating procedures for equipment;

(d) Symptoms of an acute localized exposure; and

(e) Proper procedures for reporting an active or suspected exposure.

(2) Each licensee or registrant shall maintain, for inspection by the Authority, records of training which demonstrate that the requirements of this rule have been met.

Stat. Auth.: ORS 453.605 - 453.775
Stats. Implemented: ORS 453.605 - 453.775
Hist.: HD 10-1987, f. & ef. 7-28-87; HD 1-1991, f. & cert. ef. 1-8-91

333-115-0205

Personnel Monitoring

Finger or wrist dosimetric devices shall be provided to and shall be used by all personnel working with open beam gauging equipment.

Stat. Auth.: ORS 453.605 - 453.807
Stats. Implemented: ORS 453.605 - 453.807
Hist.: HD 10-1987, f. & ef. 7-28-87

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