Xradia Performance Summary - Update.

Waters, A. M. ; Martz, H. E. ; Chinn, D. J. ; Logan, C. M. ; Gross, J. C. ; Scott, D.

Technical Information Center Oak Ridge Tennessee

关键词: Tomography;    Scintillators;    Stockpile management;    X-ray tubes;    Cameras;   

RP-ID  :  DE200515014431

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Xradias microXCT system is a high-resolution digital radiography (DR) and computed tomography (CT) system comprised of an x-ray source, detector, and a sample translation stage capable of x,y,z and theta rotation. The source is a 160-kVp microfocus X-ray tube with a spot size of 5 micro m, and a tungsten target. The detector is a scintillator with a microscope lens coupled to a 1024x1024 TE cooled CCD camera with a 16-bit A/D converter. The location of the detector is easily moveable with respect to the source, which results in a change in magnification, and hence pixel size at the object and spatial resolution. DR and CT data can be acquired at any detector location and magnification. For this project DR images were acquired at both high- and low-resolution detector locations, however CT data was only acquired in low-resolution modes due to the limited field-of-view for the high-spatial resolution modes of operation. For results presented here, the source-to-object distance was approximately 100 mm, and the object-to-detector distance was approximately 50 mm for both reference standards.