SBIR Phase I: Sensitive Semiconductor Optical Detector for Bore Hole Logging

* 96-60438沙阿 这个小型企业创新研究（SBIR）第一阶段项目将探索使用半导体光电探测器来取代核钻孔测井仪器中的光电倍增管。 预期优点在于更紧凑的设计、低功率要求、增加的坚固性和对磁场的不敏感性。 碘化铅是一种很有前途的探测器材料，因为它的宽带隙允许在室温下以及在升高的温度下进行低噪声操作。 这些探测器具有非常好的光量子效率和低功率要求。 因此，碘化铅光电探测器耦合到闪烁器被认为是有前途的伽马射线能谱仪测井。 第一阶段将通过对这些光电探测器进行深入表征来证明这一概念的可行性。 预计在钻孔仪器的探测器和各种过程控制系统以及材料的无损检测中会有商业应用。其他潜在的用途可以在医疗保健治疗和科学研究中找到。 ***

*** 96-60438 Shah This Small Business Innovation Research (SBIR) Phase I Project will explore the use of semiconductor photodetectors to replace photomultiplier tubes in nuclear bore hole logging instrumentation. Advantages are expected in more compact design, low power requirements, increased ruggedness, and insensitivity to magnetic fields. Lead iodide is a promising detector material because its wide bandgap allows low noise operation at room temperature as well as at elevated temperatures. These detectors have very good optical quantum efficiency and low power requirements. Thus, lead iodide photodetectors coupled to scintillators are thought to be promising gamma-ray spectrometers for well logging. Phase I will demonstrate the feasibility of this concept by performing in-depth characterization of these photodetectors. Commercial applications are expected in detectors for bore hole instrumentation and in various process control systems and nondestructive testing of materials. Other potential uses may be found in health care treatments and in scientific research. ***