The diagnostic X-ray protection characteristics of PanelcreteTM, AquapanelTM, BetopanTM and Gypsoplak SuperboardTM

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The diagnostic X-ray protection characteristics of Panelcrete^{^TM}, Aquapanel^{^TM}, Betopan^{^TM} and Gypsoplak Superboard^{^TM}

I A Tsalafoutas, MSc ¹ E Yakoumakis, PhD ² P Sandilos, PhD ³ L Vlahos, MD, PhD ³ and Ch Proukakis, MD, PhD ²

¹ Medical Physics Unit, Konstantopoulio-Agia Olga Hospital, 3–5 Agias Olgas, Nea Ionia, 142 33 Athens ² Medical Physics Department, University of Athens, 75 Mikras Asias, 115 27 Athens ³ Radiology Department, Areteion Hospital, 76 Vasilissis Sophias, 115 28 Athens, Greece

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Figure 1. X-ray transmission curves of (a) Panelcrete, (b) Aquapanel, (c) Betopan and (d) Gypsoplak Superboard at tube potentials of 50 kVp (•), 70 kVp ( ${square}$ ), 100 kVp ( ${blacktriangleup}$ ), 125 kVp ( ${circ}$ ) and 140 kVp (–). —, fitted.

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Figure 2. The relative transmission curves of Panelcrete ( ${circ}$ ), Aquapanel ( ${square}$ ), Betopan ( ${triangleup}$ ) and Gypsoplak Superboard ( ${lozenge}$ ) at tube potentials of 50 kVp, 100 kVp and 140 kVp, with thickness expressed in g cm^-2. —, fitted (cement-based boards); -----, fitted (Gypsoplak Superboard).

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Figure 3. The relative transmission curves of Panelcrete ( ${circ}$ ), Aquapanel ( ${square}$ ), Betopan ( ${triangleup}$ ) and Gypsoplak Superboard ( ${lozenge}$ ) at tube potentials of 70 kVp and 125 kVp, with thickness expressed in g cm^-2.

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Figure 4. Comparison of the transmission curves of Gypsoplak Superboard in this study ( ${circ}$ ) with curves for gypsum wallboard using data from Simpkin [5] ( ${lozenge}$ ), Rossi et al [6] ( ${triangleup}$ ) and Archer et al [7] ( ${square}$ ), at tube potentials of 70 kVp and 100 kVp, with thickness expressed in g cm^-2.