本文
No.8（2005）11.Generation of Dual-energy X-rays and Its Application to Bone Mineral Density Measurement
Takashi SUZIKI and Noboru SAKURAI
We developed a simple and useful method to generate dual-energy X-rays by applying metal filters on conventional X-ray generators. To generate suitable dual X-rays in this method, it required a filter of the proper thickness that reduced the intensity of X-rays at a high energy area to 1/50 and a tube voltage which was about two times higher than that for generation of a characteristic X-rays of the metal filter. The dual X-rays generated by a 1mm thick Tin filter and a tube voltage of 63kV were applied to the measurement of the bone mineral density (BMD). The results of measuring finger phantom samples agreed with the actual BMD values within 10% error.
Keywords
Continuous X-rays, Dual X-rays, Filter, Bone Mineral Density, BMD
