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. 2016 Feb 5;89(1059):20150770. doi: 10.1259/bjr.20150770

Table 3.

Doses measured with an A1SL chamber (Standard Imaging Inc., Middleton, WI) at the two positions shown in Figure 5, relative to the dose when all the holes are filled with unit density plugs

Chamber position Calculated
Measured
Calculated/measured
Inner ring removed All plugs removed Inner ring removed All plugs removed Inner ring removed All plugs removed
Anterior 1.075 1.141 1.058 1.116 1.016 1.022
Posterior 1.064 1.148 1.042 1.114 1.021 1.031