SBIR PHASE I: A Compact Betatron for Nondestructive Evaluation

小行星9560478 这个小企业创新研究第一阶段项目可以显着降低放射性无损评估的成本。 一个廉价的紧凑型电子感应加速器将被用作高通量X射线源的目的，在民用结构的无损评价（NDE）。 X射线源将取代更昂贵的RF直线加速器，从而降低放射设备的成本。 在传统的电子感应加速器中，铁中的涡流损耗限制了频率和最大场，从而限制了输出束功率。 通过使用专有的低损耗、高频材料，已经确定较高的驱动频率允许高得多的X射线通量。 放射性无损检测需要这样的X射线源来提供快速、高信噪比的分析。 第一阶段将确定必要的电子感应加速器的设计参数，包括电磁铁的尺寸，极的形状，极间隙，和最佳的电子枪注入的位置。 Adelphi Technology，Inc.最近开发的计算机程序。将用于高重复率电子感应加速器。分析将试图证明，一个廉价的电子感应加速器将提供必要的X射线通量检查混凝土结构高达70厘米厚。 拟议的研究将证明一个廉价的紧凑型电子感应加速器适用于民用结构的无损检测的商业和技术的可行性。 这种电子感应加速器的其他商业应用包括癌症放射治疗、医学成像、集成电路的微光刻和紧凑型行李扫描仪。

9560478 Lombardo This Small Business Innovation Research Phase I project could significantly reduce the cost of radiological nondestructive assessment. An inexpensive compact betatron will be used as a high-flux x-ray source for the purpose of nondestructive evaluation (NDE) in civil structures. The x-ray source would replace more expensive RF linacs and thereby reduce the cost of radiological equipment. In conventional betatrons, eddy-current losses in the iron limit the frequency and the maximum field, thereby limiting the output beam power. With the use of proprietary low-loss, high-frequency materials, it has been determined that higher driving frequencies permit much higher x-ray fluxes. Radiological NDE requires just such an x-ray source to provide rapid, high signal-to-noise analyses. Phase I will determine the necessary betatron design parameters including the electromagnet dimensions, the pole shapes, pole gap, and the optimum placement of the electron gun for injection. Computer programs recently developed by Adelphi Technology, Inc. for the Department of Energy will be used for high repetition-rate betatrons. The analysis will attempt to demonstrate that an inexpensive betatron will provide the x-ray flux necessary to examine concrete structures up to 70 cm thick. The proposed research will demonstrate the commercial and technical feasibility of an inexpensive compact betatron suitable for the NDE of civil structures. Other commercial applications of such a betatron include cancer radiotherapy, medical imaging, microlithography of integrated circuits, and compact baggage scanners.