Entrance Surface Dose according to Dose Calculation : Head and Wrist

피폭선량 산출을 통한 피부입사선량 계산: 머리 및 손목을 중심으로

  • Sung, Ho-Jin (Department of Radiology, Chonnam National University Hospital) ;
  • Han, Jae-Bok (Department of Radiological Science, Dongshin University) ;
  • Song, Jong-Nam (Department of Radiological Science, Dongshin University) ;
  • Choi, Nam-Gil (Department of Radiological Science, Dongshin University)
  • 성호진 (전남대학교병원 영상의학과) ;
  • 한재복 (동신대학교 방사선학과) ;
  • 송종남 (동신대학교 방사선학과) ;
  • 최남길 (동신대학교 방사선학과)
  • Received : 2016.07.20
  • Accepted : 2016.09.19
  • Published : 2016.09.30


This study were compared with the direct measurement and indirect dose methods through various dose calculation in head and wrist. And, the modified equation was proposed considering equipment type, setting conditions, tube voltage, inherent filter, added filter and its accompanied back scatter factor. As a result, it decreased the error of the direct measurement than the existing dose calculation. Accordingly, diagnostic radiography patient dose comparison would become easier and radiogrphic exposure control and evaluation will become more efficient. The study findings are expected to be useful in patients' effective dose rate evaluation and dose reduction.


  1. S. E. Peters and P. C. Brennan.: Digital radiography, are the manufactures's settings too high?, Optimization of the Kodak digital radiography system with aid of the computed radiography dose index, Eur Radio, 12(9), 2381-2387, 2001
  2. Japan society of radiological technology, Non-Dosimeter-Dosimetry (NDD) method, Ibaragi Branch office, Mito, 1996
  3. Sungchul Kim, Chongyeal Kim, Sungmin Ahn: Calculation method of entrance skin dose in X-ray beam quality factor, the Journal of the Korea Contents Association, 10(2), 258-267, 2010
  4. Technical Report: Explanation Material of RPL, Glass Dosimeter, Small Element System, Asahi Techncv Glass corporation, 2000
  5. IR Edmons: Calculation of patient skin dose from diagnostic X-ray procedures, Br J Radiology, 57, 733-744, 1984
  6. Saad Abdulrrahman A. Al-Shehri: Assessment of beam characteristics of some X-ray units at Security Forces Hospital and their applications in paediatric dose calculation, King Saud University, 2006
  7. Chunan, J. Tong, H. Tsai: Evaluations of Gonad and Fetal Doses for Diagnostic Radiology, Proc. Natl. Sci. Counc. ROC(B), 23(2), 107-113, 1999
  8. Hanan Fawaz Akhdar: Assessment of Entrance skin dose and effective dose of some routine Examinations using calculation technique, King Saud University, 2007
  9. International Atomic Energy Agency: International basic safety standards for protection against ionizing radiations and for safety of radiation sources. IAEA Safety Series No. 115-1, IAEA, Vienna, 1994
  10. Gray JE, Archer BR, Butler PF, Hobbs BB, Mettler FA, Pizzutiello RJ, Schueler BA, Strauss KJ, Suleiman OH, Yaffe MJ, Re AAPMTG: Reference values for diagnostic radiology: Application and impact, Radiology, 235, 354-358, 2005
  11. HPA: Dose to patients from radiographic and fluoroscopic X-ray imaging procedures in the UK - 2005 Review. Chilton, UK: Health Protection Agency; HPA-RPD-029, 2007
  12. P. C. Shrimpton, B. F. Wall, D. G. Jones, et al.: A national survey of doses to patients undergoing a selection of routine x-ray examinations in English hospitals. NAPB-R200. National Radiological Protection Borad, Oxon, 1986.
  13. National Radiological Protection Board: Patient doses reduction in diagnostic radiology. Documents of the NCRP. 1(3), 1990
  14. The Institute of Physical Sciences in Medicine (IPSM), NRPB and College of Radiographers (CR), National protocol for patient dose measurement in diagnostic radiology. NRPB, Oxon, 1992
  15. Technical White Paper: Monitoring and Tracking of Fluoroscopic Dose, CRCPD Publication #E-10-7, 2010
  16. T.Ishiguchi, S.Iwanami, S.Kawastsu, T.Ishigaki and S.Koga: Radiation Exposure by Routine Radiographic Exminations, Multicenter Study in Japan with Thermoluminescenece Dosimetery and Estimation frome the Radiographic Data, Nagoya University School of Medicine, Japan, 7-21, 2000