1989 Ed.]
Radiation (Control of Irradiating Apparatus) Regulations
[CAP. 303
B3
[Subsidiary]
RADIATION (CONTROL OF IRRADIATING APPARATUS)
REGULATIONS
(Cap. 303, section 13)
[1 October 1965] L.N. 114 of 1965
L.N. 68 of 1965, L.N. 63 of 1970, L.N. 97 of 1970, L.N. 244 of 1974, L.N. 43 of 1976, L.N. 410 of 1982, R. Ed. 1982, 50 of 1985, L.N. 229 of 1985, L.N. 76 of 1989, L.N. 212 of 1989, 4225790
PART I
CITATION AND INTERPRETATION
1. Citation
These regulations may be cited as the Radiation (Control of Irradiating Apparatus) Regulations.
2. Interpretation
In these regulations, unless the context otherwise requires-
"approved laboratory" means a laboratory approved by the Board for the purposes of regulation 16;
"dental practitioner" means a person for the time being registered or deemed to be registered under the Dentists Registration Ordinance (Cap. 156);
"dental X-ray machine" means a type of irradiating apparatus specifically designed for the taking of radiographs of the teeth or jaws;
"irradiating apparatus" ...
“dose” is the quantity of absorbed energy from radiation;
"dosemeter" means an instrument for measuring exposure to radiation;
"dose rate" is the dose per unit of time, usually expressed as grays per minute and symbolized Gy/min. or as sieverts per minute and symbolized Sv/min.;
“employ” and “employment” include reference to any kind of work carried out in furtherance of apprenticeship or any agreement for training;
"equivalent thickness of lead" means such thickness of lead as is equally opaque to a specific quality of radiation;
"exposure rate" means the exposure per unit of time, usually expressed as coulombs per kilogram minute and symbolized C/kg. min.;
"filter" means any substance interposed in a beam of radiation for the purpose of changing its quality or intensity, or both; and "filtration" has a meaning corresponding therewith;
"Gray" means a unit of absorbed dose of energy from radiation which is equivalent to 1 joule per kilogram of material irradiated; (L.N. 410 of 1982)
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