CHEN Tian-xiang, GAO Na, LI Lin etc. Optical property characterization of X-ray filters used in X-ray space survey[J]. Editorial Office of Optics and Precision Engineering, 2019,27(11): 2337-2342
CHEN Tian-xiang, GAO Na, LI Lin etc. Optical property characterization of X-ray filters used in X-ray space survey[J]. Editorial Office of Optics and Precision Engineering, 2019,27(11): 2337-2342DOI:
In order to satisfy the requirements of space X-ray survey at home and abroad
Some X-ray filters could be used in space project were manufactured by ourselves. First
the transmission properties were characterized by UV-Vis spectrometer and X-ray source of synchrotron radiation. The relationship between optical properties and geographic structure of X-ray filters was studied. The results indicate that: In ultraviolet
visible and infrared bands
the transmission gets lower while the thickness of Al layer gets thicker. The transmission of filters whose Al layers is deposited on one side of polyimide is lower than the transmission of filters whose Al layers are deposited on both side of polyimide. The transmission is lower than 10-4 while the thickness of Al layers is 120 nm. In X-ray band
the transmission is just decided by the whole thickness of polyimide and the whole thickness of Al. The filters manufactured by ourselves could satisfy the requirements of space X-ray survey at present.