Journal of Medical Physics
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Year : 1999  |  Volume : 24  |  Issue : 2  |  Page : 51-55

Diamond Detector Based Dosimetry Of Microselectron HDR 192lr Source

Correspondence Address:
Surendra N Rustgi

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Source of Support: None, Conflict of Interest: None

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A diamond detector was used to measure dose distributions around a Nucletron microSelectron 192lr HDR source. Relative 2D dose distributions along the source axis (0-7 cm) at distances ranging from 0.5 to 7 cm from the source center were measured in a water phantom. Relative dose rates transverse to the source axis were also measured at distances of 0.5-7 cm from the source center. The measured data was normalized to 1.115-cGy h-1U-1 along the source transverse axis at 1 cm. Excellent agreement between measured, two-dimensional dose distributions and corresponding published TLD/diode measurements and Monte Carlo calculations was observed.

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