Prediction of output factor, range, and spread-out bragg peak for proton therapy

Dong Wook Kim, Young Kyung Lim, Sung Hwan Ahn, Jungwook Shin, Dongho Shin, Myonggeun Yoon, Se Byeong Lee, Dae Yong Kim, Sung Yong Park

Research output: Contribution to journalArticle

8 Citations (Scopus)


In proton therapy, patient quality assurance (QA) requires measuring the beam range, spread-out Bragg peak (SOBP), and output factor. If these values can be predicted by using sampling measurements or previous QA data to find the correlation between beam setup parameters and measured data, efforts expended on patient QA can be reduced. Using sampling data, we predicted the range, SOBP, and output factor of the proton beam. To obtain sampling data, we measured the range, SOBP, and output factor for 14 data points at each of 24-beam range options, from 4-28 cm. Prediction conformity was evaluated by the difference between predicted and measured patient QA data. Results indicated that for 60% of patients, the values could be predicted within 3% of dose uncertainty.

Original languageEnglish
Pages (from-to)145-152
Number of pages8
JournalMedical Dosimetry
Issue number2
Publication statusPublished - 2011 Jan 1
Externally publishedYes



  • Dose
  • Output
  • Prediction
  • Proton
  • Range
  • SOBP

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Kim, D. W., Lim, Y. K., Ahn, S. H., Shin, J., Shin, D., Yoon, M., Lee, S. B., Kim, D. Y., & Park, S. Y. (2011). Prediction of output factor, range, and spread-out bragg peak for proton therapy. Medical Dosimetry, 36(2), 145-152.