WASET
	%0 Journal Article
	%A Hai Huu Le and  Paul Junor and  Moshi Geso and  Graeme O’Keefe
	%D 2017
	%J International Journal of Physical and Mathematical Sciences
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 125, 2017
	%T Directionally-Sensitive Personal Wearable Radiation Dosimeter
	%U https://publications.waset.org/pdf/10007110
	%V 125
	%X In this paper, the authors propose a personal
wearable directionally-sensitive radiation dosimeter using multiple
semiconductor CdZnTe detectors. The proposed dosimeter not only
measures the real-time dose rate but also provide the direction of the
radioactive source. A linear relationship between radioactive source
direction and the radiation intensity measured by each detectors is
established and an equation to determine the source direction is
derived by the authors. The efficiency and accuracy of the proposed
dosimeter is verified by simulation using Geant4 package. Results
have indicated that in a measurement duration of about 7 seconds,
the proposed dosimeter was able to estimate the direction of a 10μCi
137/55Cs radioactive source to within 2 degrees.
	%P 207 - 210