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A Study on the Characteristics of Smartphone Camera as a Medical Radiation Detector
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 Title & Authors
A Study on the Characteristics of Smartphone Camera as a Medical Radiation Detector
Kang, Han Gyu; Kim, Ho Chul;
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The aim of this study is to investigate the optimal algorithm to extract medical radiation induced pixel signal from complementary metal-oxide semiconductor (CMOS) sensors of smartphones camera. The pixel intensity and pixel number of smartphone camera were measured as the X-ray dose was increased. The front camera of the smartphone camera has low noise property and excellent dose response as compared to the back camera of the smartphone. The indirect method which uses scintillation crystal in front of the smartphone camera, couldn`t improve the X-ray detection efficiency as compared to the direct method which does not use any scintillator in front of the smartphone camera. When we used the algorithm which employing threshold level on the pixel intensity and pixel number, the dose linearity was more higher for the pixel intensity rather for the pixel number. The use of pixel intensity of Y color component which represents the grey scale, would be efficient in terms of the radiation detection efficiency and reducing the complexity of the image processing. We expect that the radiation dose monitoring can be managed effectively and systematically by using the proposed radiation detection algorithm, thus eventually will contribute to the public healthcare.
X-ray;Radiation detection;CMOS;Smartphone;
 Cited by
G. A. Drukier, E.P. Rubenstien, P.R. Solomon, M.A. Wojtowicz, M.A. Serio, "Low cost, pervasive detection of radiation threats," Proceedings of the 2011 IEEE International Conference, 2011. pp. 365-371,

D. Igoe, A. Parisi, and B. Carter, "Characterization of a smartphone camera's response to ultraviolet A radiation," Photochem Photobiol, vol. 89, no. 1, pp. 215-218, Feb, 2013. crossref(new window)

F. Wang, M-Y. Wang, Y. -F. Liu, C. -W. MA, L. Chang, "Obtaining low energy $\gamma$ dose with CMOS sensors," Nuclear Science and Techniques, vol. 25, no. 060401, pp. 1-4, Dec, 2014.

H.Hartmann, V. Hietschold, R.Freudenberg, J. Kotzerke, Dresden, "Smartphones now even smarter - possibility of using a "dose warner"," RoFo, vol. 185. 1, pp. 558-562, May, 2013. crossref(new window)

Olivier Van Hoey, Alexia Salavrakos et al, "Radiation dosimetry properties of smartphone CMOS sensors", Radiation Protection Dosimetry, vol. 163, no. 3, pp. 1-8, May, 2015. crossref(new window)