"WARNING: This x-ray unit may be dangerous to patient and operator unless safe exposure factors and operating instructions are observed"
TABLE I
Design Operating Range (Kilovolts Peak) | Measured Potential (Kilovolts Peak) | Half- value layer (Millimeters of Aluminum) |
Below 50 | 30 | 0.3 |
40 | 0.4 | |
49 | 0.5 | |
50-70 | 50 | 1.2 |
60 | 1.3 | |
70 | 1.5 | |
Above 70 | 71 | 2.1 |
80 | 2.3 | |
90 | 2.5 | |
100 | 2.7 | |
110 | 3.0 | |
120 | 3.2 | |
130 | 3.5 | |
140 | 3.8 | |
150 | 4.1 |
TABLE II
Filtration Required vs. Operating Voltage
Operating Voltage (kVp) | Total Filtration (inherent plus added) (millimeters aluminum equivalent) |
Below 50 | 0.5 millimeters |
50 to 70 | 1.5 millimeters |
Above 70 | 2.5 millimeters |
Ga. Comp. R. & Regs. R. 111-8-90-.04
Ga. L. 1964, pp. 507, 569, 570; O.C.G.A. § 31-13-5.