Re: Film Badges

[Ivor Surveyor <isurveyor@vianet.net.au>]

>>> ALARA policy.
>> 
>>>> >> >>
>> >> For individuals who work in areas such as angio, cath and EP labs we ask
>> >> them to wear two badges one under lead apron at waist line and one on
top of
>> >> lead apron on collar. Film badge under lead apron, TLD on top.  It will
>> >> prevent the mixing of badges. They must wear thyroid shield.  We
recommend
>> >> that they wear leaded glass and if applicable leaded sleeves. Webster
>> >> formula can be used to calculate their whole body dose.
>> >
>> >>> >
>> >
>I have one small question:    Reference to the literature provides
evidence of an increased risk of thyroid cancer if infants are irradiated.
 What is the empirical evidence that this sensitivity for cancer induction
extends to the irradiation of an adult thyroid gland? >
Ivor Surveyor		[isurveyor@vianet.net.au]
Emeritus Consultant Physician,
Department of Nuclear Medicine
Royal Perth Hospital.