15 October 2012 Stability study on ceramic mercuric iodide (red) x-ray sensor
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Proceedings Volume 8549, 16th International Workshop on Physics of Semiconductor Devices; 854910 (2012); doi: 10.1117/12.924240
Event: 16th International Workshop on Physics of Semiconductor Devices, 2011, Kanpur, India
Abstract
A ceramic mercuric iodide X-Ray sensor probe is developed from highly pure mercuric iodide. Probe has high mechanical and chemical stability. Photoconductivity and stability are studied and analysed. It is found that dark current shows a pure resistive variation with increase in bias voltage where as photocurrent shows a sigmoidal behavior. Annealing in air helps in reducing the polarization effect and improving the sensor properties. Adsorption of iodine is found to drastically reduce sensor performance. Annealed probe shows a repetitive trend in switching characteristics.
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Kulvinder Singh, Manoj Saxena, "Stability study on ceramic mercuric iodide (red) x-ray sensor", Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 854910 (15 October 2012); doi: 10.1117/12.924240; http://dx.doi.org/10.1117/12.924240
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KEYWORDS
X-rays

Sensors

Ceramics

Crystals

Electrodes

Iodine

Copper

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