Hong Kong Regulations

RADIATION (CONTROL OF IRRADIATING APPARATUS) REGULATIONS - REGULATION 24

Recording and checking of filters

(1) In any therapeutic application of X-rays, the type of filter used for the
useful beam or the half-value layer resulting therefrom shall at each
treatment be entered in a treatment record of the patient by the person
administering the treatment.

(2) If the filter is changed before any treatment, the details of the new
filter shall be checked by 2 persons, one of whom shall be the person
administering the treatment, and the other the licensee or a person authorized
thereto by the licensee.

(3) Both persons referred to in subregulation (2) after having checked any new
filter in accordance with the provisions of that subregulation, shall cause
the details of the new filter and the date upon which it was checked to be
entered in the treatment record before any treatment is administered.

(4) Any person making any therapeutic application of X-rays who fails to
comply with any of the provisions of subregulation (1), (2) or

(3) shall be guilty of an offence and be liable on conviction to a fine of
$15000. (L.N. 97 of 1970; L.N. 225 of 1990)