| 摘要 |
<p>Mecuric Iodide X-Ray detectors are made to exhibit high energy resolution characteristics, reduced background level in the X-Ray spectra, enhanced sensitivity to low energy X-Rays and significantly improved long term stability and reliability. The above improvements have been achieved through specific changes in the detector construction and passivation/encapsulation techniques. Specifically, the introduction of a guard ring structure (15) and collimating shield (21) improved the electric field distribution in the detector (10), reduced the surface leakage current, lowered effective capacitance and eliminated current injections. A special Parylene-C and Parylene-N deposition onto the detector (10) surface insured excellent long term detector stability and reliability.</p> |
