Unfortunately we are unable to provide specific advice on the shielding requirement for your individual project. However, as a guideline only, we can offer the following information. This is a guide only and you are obliged to employ the services of an RPA (Radiation Protection Advisor) to advise you on your actual shielding requirements.
Dental, Veterinary and chiropody:
Generally speaking, x-ray machines used in these disciplines are at the lower end of the kV scale and most shielding specified in these areas is code 3 (1.32mm). It could therefore be assumed that 6-7mm thick lead glass (1.8mm Lead equivalent) will be sufficient. Note: Equestrian x-ray should be regarded more as general x-ray – see below.
General Medical X-ray, Endoscopy, Gamma camera, Fluoroscopy & Cath Labs:
In most cases, shielding for the above diagnostics and procedures will be specified by the RPA as 2mm Lead protection. It could therefore be assumed that 7-9mm lead glass (2.24mm Lead equivalent) will be sufficient.
In recent years the advances in CT scanning technology has driven an increase in patient throughput. This, in turn, has had a knock-on effect on the shielding and in most cases 2.5 -3.5mm lead will be required.
Glass used in PET scanner rooms is shielding the radiation from an isotope and not an X ray. The shielding requirement can vary greatly anywhere between 5mm and 20mm or above. This is a very complex field and expert advice should always be sought as soon as possible.
In all cases, you should only order lead glass specified by the RPA.