Department of Radiology, The Affiliated Hospital of Binzhou Medical University, Binzhou 256603, China Shandong Medical Imaging Research Institute, Ji'nan 250012, China School of Radiology, Taishan Medical College, Tai'an 271016, China
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 focal 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 tes...更多
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 focal 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.收起
