title: Preparation and characterization of planar deuterium cryotargets.
abstract: 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.
authors.affiliation: 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
authors.forename: Haile
authors.initials: H
authors.lastname: Lei
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.forename: Yongjian
authors.initials: Y
authors.lastname: Tang
authors.forename: Yuanqiong
authors.initials: Y
authors.lastname: Liu