- 5 -
DANGER - IMPORTANT WARNINGS
The system must be operated only by trained and qualified radiographers who have read and understand this Operating
Manual or by trained assistants working under their direct supervision.
WARNING
The use of this radiographic exposure device by unqualified personnel or when safety procedures are not fully met
could result in life-threatening dangers.
Gamma radiography systems emit high levels of highly penetrating radiation during use.
An unshielded radiation source at close range can cause
injury, sickness or death
to anyone who is exposed to it even for a
short period of time. A radiation source (or an unshielded source assembly) must
NOT
be touched by the hands under any
circumstances.
Since gamma radiation cannot be detected by the human senses, strict operating and emergency procedures must be followed.
The proper use of calibrated and operable survey meters must be employed to avoid potentially dangerous levels of radiation
exposure.
Proper dosimetry including film badges, thermoluminescent dosimeters, direct reading pocket dosimeters and audible alarm
rate meters must be worn during all radiographic operations.
During use of this radiography system,
never
assume the position of the radiation source.
Always
conduct a thorough
confirmatory survey using a calibrated and operable survey meter to verify the location of the radiation source. Be reminded
that a multitude of overexposure incidents which include injuries are directly attributed to a failure of the radiographer to
perform or supervise an adequate confirmatory survey.
It is imperative that the users of this transport container perform adequate radiation surveys of the transport container and
exposure devices. Surveys must be performed using a calibrated survey instrument before, during and after source exchanges
and before transport to determine if the source assembly is properly shielded within the transport container. The failure to
perform an adequate radiation survey can cause unnecessary exposure to personnel resulting in a reportable incident.
It is very important and required by national and international regulations to prevent access by unauthorized persons to
radiographic equipment and to the area where radiography is performed.
Take advantage of the three basic radiation protection methods to minimize radiation exposure:
TIME
Spend less time near the radiation source.
DISTANCE
Increase your distance in a direction away from the radiation source.
SHIELDING
When possible, always apply the use of effective shielding between you and the radiation source.
Do not perform any unauthorized modifications to the Model 989 exposure device or components of the radiography system.
It is important that trained and qualified radiographers perform or supervise a daily safety inspection of the radiography
system for obvious defects prior to operation of the system.
Do not use any components that are not approved for use with the radiography system or after-market components that may
compromise the safety features designed into the system.
MODEL 989
Summary of Contents for 989
Page 1: ...MAN 037 October 2017 ...
