Measurement analysis of the dose output stability of NMSR600 medical linear accelerator / 中国医学装备

ABSTRACT

Objective: To measure and analyse the Dose Output Stability of NMSR600 Medical Linear Accelerator. Methods: Use of measuring instrument is 9606B dosimeterThe parameter values of measurement are determined according to IAEA regulations, and absorbed dose calculation formula is briefed to the form that the reading of instrument multiplies cumulative correction factor. Results:Statistics of output dose measurement have been done on NMSR600 accelerator in 51 weeks. Over 90%of the measurement error is less then 2%, and over 98%(degree of confidence) of the measurement error is less then 3%. Conclusion:NMSR600 medical Linear Accelerator is able to totally satisfy the clinical requirement of dose output stability.