医用诊断X线球管焦点性能检测装置的研制与应用

Development and utility of focal spot performance test device for medical diagnosis X-ray tube

目的研制一种医用诊断X线球管焦点性能检测装置(简称检测装置)。方法根据国际IEC60336:2005标准要求,自主研制具有X线焦点中心线定位及进行焦点狭缝照相、针孔照相和星卡照相的检测装置,并对其进行焦点性能检测应用研究。结果检测装置能对X线焦点中心线进行定量调节定位,焦点中心线定位调节次数一般为2～3次,并可获得国际IEC60336:2005标准要求的焦点狭缝像、针孔像和星卡像。结论研制的检测装置焦点中心线定位精度高、功能全、操作简便、易于推广。

Objective To develop a test device, and to evaluate the focal spot performance for medical diagnosis X-ray tube. Methods According to the needs of the latest IEC standard IEC60336：2005, a focal spot performance test device with locating the X-ray centerline of a focal spot was self-developed and was used to produce the foeal spot slit images, focal spot pinhole images and focal spot star pattern images. The performance of focal spot was evaluated using the test device. Results To use the test device, the quantitative adjusting position of X-ray focal spot centerline was achieved. The quantitative adjusting position were generally repeated 2-3 times, and the focal spot slit images, focal spot pinhole images and focal spot star pattern images for meeting requirements of the IEC standard IEC60336 = 2005 were acquired. Conclusion The test device for positioning the X ray focal spot centerline has high accuracy and full-function, and is easy to operate and promote.