Table 3.

Common QA lapses and deficiencies found at institutions during RPC visits.

QA records not available or maintained

Annual calibrations or monthly checks not performed timely

No record of comparison to clinical values on annual report

No record of comparison of daily and monthly checks against annual “baseline” values

Physicist review of daily checks not documented

No record of corrective actions and repeat measurements

Check of electron beam energy not performed as required by applicable regulations and recommendations

Output or field flatness constancy with gantry angle not checked during annual calibration