§ 221.29. Kilovoltage (kV) accuracy.

 (a)  For variable kV units, the kV output may not vary from the set-indicated value by more than 10% over the range of technique factors normally used. Discrepancies of more than 10% between set-indicated and measured kV values shall be investigated by a qualified expert or service agent and appropriate action taken.

 (b)  For fixed kV units, the kV output may not vary from the set-indicated value by more than 20% over the range of technique factors normally used. Discrepancies of more than 20% between set-indicated and measured kV values shall be investigated by a qualified expert or service agent and appropriate action taken.

Authority

   The provisions of this §  221.29 issued and amended under sections 301 and 302 of the Radiation Protection Act (35 P. S. § §  7110.301 and 7110.302); and section 1920-A of The Administrative Code of 1929 (71 P. S. §  510-20).

Source

   The provisions of this §  221.29 adopted October 2, 1998, effective October 3, 1998, 28 Pa.B. 4894; amended November 16, 2001, effective November 17, 2001, 31 Pa.B. 6282; amended July 16, 2004, effective July 17, 2004, 34 Pa.B. 3823. Immediately preceding text appears at serial pages (285672) to (285673).

Cross References

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



No part of the information on this site may be reproduced for profit or sold for profit.

This material has been drawn directly from the official Pennsylvania Code full text database. Due to the limitations of HTML or differences in display capabilities of different browsers, this version may differ slightly from the official printed version.