§ 221.23. Leakage radiation from the diagnostic source assembly.

 The leakage radiation from the diagnostic source assembly measured at a distance of 1 meter in any direction from the source may not exceed 100 milliroentgens (25.8 µC/kg) in 1 hour when the X-ray tube is operated at its leakage technique factors. Compliance shall be determined by measurements averaged over an area of 100 square centimeters with no linear dimension greater than 20 centimeters.

Authority

   The provisions of this §  221.23 amended under section 302 of the Radiation Protection Act (35 P. S. §  7110.302); and section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20).

Source

   The provisions of this §  221.23 adopted February 1, 1972, effective February 2, 1972, 2 Pa.B. 212; amended December 18, 1987, effective December 19, 1987, 17 Pa.B. 5235. Immediately preceding text appears at serial page (4882).

Cross References

   This section cited in 25 Pa. Code §  221.35a (relating to fluoroscopic X-ray systems).



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