|
KMID : 1151820090030040023
|
|
Journal of the Korean Society of Radiology
2009 Volume.3 No. 4 p.23 ~ p.28
|
|
|
Optimum Design and Tolerance Analysis of Multilayer Mirror for Obtaining Characteristic X-ray of 17.5 keV
|
|
Chon Kwon-Su
|
|
|
Abstract
|
|
|
|
Monochromatic X-ray can make a medical image of high contrast under a low radiation dose and can be easily generated by combining an X-ray tube and a multilayer mirror. A W/C multilayer mirror was optimally designed for a characteristic X-ray generated from a X-ray tube with Mo target. The d-spacing and the thickness ratio in design parameters were determined under the maximum-reflectivity condition. Tolerances for deposition and alignment of the W/C multilayer mirror were calculated. Within a deposition tolerance of 0.2㎚ and a alignment tolerance of ± 0.01°, 85% of the theoretical peak reflectivity could be achieved. A multilayer mirror can be widely used for making medical images because of generating high fluence monochromatic X-ray.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|