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British Journal of Radiology (2003) 76, 129-131
© 2003 British Institute of Radiology
doi: 10.1259/bjr/58851704
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Measurement of dose–width product in panoramic dental radiology

P Isoardi, PhD and R Ropolo, PhD

Department of Health Physics, Azienda Ospedaliera San Giovanni Battista di Torino, c.so Bramante 88, 10126 Torino, Italy



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  		Figure 1. Measurement set up with a pencil ionization chamber mounted on a dental panoramic unit.

 


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  		Figure 2. Variation of optical density (OD) with dose for the Kodak X-Omat V film (Kodak, Rochester, NY).

 


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  		Figure 3. Typical dose profile at the secondary collimator for a Philips, Best, The Netherlands, Orthoralix C Panoramic X-ray unit (code 5 in Table 1Go).

 




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