Preparation and characterization of planar deuterium cryotargets.
Using a planar-cryotarget system with the cooling power provided by a Gifford-McMahon cryocooler, the deuterium vapor is condensed to form liquid in a cylinder target cell. The liquefaction processes of deuterium are examined by the Mach-Zehnder interference and infrared spectra. The infrared-absorption spectra of deuterium show a strong absorption peak around 3040 nm at 19 K. The thickness distribution of the condensed deuterium in the target cell is determined from Mach-Zehnder interference images by developing a new mathematical treatment method in combination with the digital-image processing technique.
Lei
Haile
H
Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-987, 621900 Mianyang, People's Republic of China. hailelei@yahoo.com
Li
Jun
J
Tang
Yongjian
Y
Liu
Yuanqiong
Y