HF Series Generators -- RAD Console
Operation
OM- 0279R1
7
2.3 MAXIMUM PERMISSIBLE DOSE (MPD)
Before operation, persons qualified and authorized to operate this equipment
should be familiar with the Recommendations of the International Commission
on Radiological Protection, contained in Annals N umber 60 of the ICRP, with
applicable National Standards, and should have been trained in use of the
equipment.
THE OPERATOR SHALL USE THE LARGEST POSSIBLE
FOCAL SPOT TO SKIN DISTANCE IN ORDER TO KEEP THE
ABSORBED DOSE AS LOW AS REASONABLY ACHIEVABLE.
2.4 RADIATION PROTECTION
Because exposure to X-ray radiation may be damaging to health,use great care
to provide protection against exposure to the primary beam. Some of the effects
of X-ray radiation are cumulative and may extend over a period of months or
years. The best safety rule for X-ray operator is “Avoid exposure to the primary
beam at all times
”.
Any object in the path of the primary beam produces secondary (scattered)
radiation. The intensity of the secondary radiation is dependent upon the
energy and intensity of the primary beam and the atomic number for the object
material struck by the primary beam. Secondary radiation may be of greater
intensity than that of the radiation reaching the film. Take protective measures
to safeguard against it.
An effective protective measure is the use of lead shielding. To minimize
dangerous exposure, use such items as lead screens, lead impregnated
gloves, aprons, thyroid collars, etc. The lead screen should contain a minimum
of 2.0 mm of lead or equivalent and personal protective devices (aprons,
gloves, etc.) must contain a minimum of 0.25 mm of lead or equivalent. For
confirmation of the local requirements at your site, please refer to your “Local
Radiation Protection R ules” as provided by your Radiation Protection Advisor.
WHILE OPERATING OR SERVICING X-RAY EQUIPMENT,
ALWAYS KEEP A DISTANCE NOT LESS THAN 2 METERS
FROM THE FOCAL SPOT AND X-RAY BEAM, PROTECT
BODY AND DO NOT EXPOSE HANDS, WRISTS, ARMS OR
OTHER PARTS OF THE BODY TO THE PRIMARY BEAM.
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