hrvatski

Zona nadzora uz zubarske rendgene koji rade u RVG* modu snimanja

The importance of prompt occupational dose reporting rises when dose is received within short-time interval or when the radiation source suffers any technical failures. New dosimetric concept states that exposure to radiation is to be recognized as a private/or group hazard of each person alone. Actual radiation quality of the source and well defined controlled areas and areas of concern - point (Ort) are to be taken into account. Quality Control measurements of the source and digital dosemeter ALARA OD2 for external dosimetry, are used to establish the real pattern of occupational dose delivered to the workers or/and as the (Ort) environmental measuring station. Dosemeter device, produced by ALARA Instruments Ltd., is licensed in Republic of Croatia. Device has the probe sensitive to background radiation and fast enough to record any change in environmental-background radiation field. If user-worker or dosimeter device enter the radiation field area or radiation source produces unexpected higher radiation output, second mode will separately start to measure this additional dose. This upgrade to legal obligatory external dosimetry is helping and will help and ease defining the professional staff who are actually exposed to ionising radiation of concern and for whom it is necessary to provide legally required or even additional occupational health care programme. This work states that the working areas around the dental x-ray units operating in RVG digital mode are not to be concerned as a controled areas in radiation protection sence. Theese areas are to be carefully designed and monitored before the final decision is made but, as it seems we have found no dental x-ray device working in RVG mode around which it is necessary to establish full control areas acording to BSS IAEA and our legal law regulations.

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