替地球重力拍X光影像Gravitationally sensitive structured x-ray optics using nuclear resonances

圖/物理系提供

在國科會支持下，中央大學物理系廖文德教授進行理論計算設計一種新型結構化X光波導管，能探測地球上1毫米高度變化所引起的重力差異。計算結果顯示，SXWG的X光輸出光班分佈會受到高度變化的影響。故透過檢視光班的變化便能得知SXWG與X光光源之間的高度差。而使用其他同位素，如釷-229、銀-109等，甚至可以達到微米等級的靈敏度。本結果發表於國際期刊Phys. Rev. Research 7, 013158 (2025)。

With the support of the National Science and Technology Council, Prof. Wen-Te Liao theoretically investigated a novel structured X-ray waveguide (SXWG) capable of detecting gravitational differences caused by height changes as small as 1 millimeter on Earth. The results show that the X-ray output intensity distribution of the SXWG is affected by height changes. Therefore, by examining the changes in the light pattern, the height difference between the SXWG and the X-ray source can be determined. Using other isotopes, such as 229Th or 109Ag, can even achieve sensitivity at the micrometer level. This work is published in Phys. Rev. Research 7, 013158 (2025).