Preparation and investigation of thick carbon foils prepared by laser plasma ablation deposition

New methods for testing cyclotron carbon stripper foils

“…Foil materials and deposition methods under investigation include: (1) laser ablation, trying for random crystallite distribution in the resulting foils [25], (2) wellcharacterized arc at ultra-high vacuum, for highest uniformity and reproducibility [26], (3) controlled ac/dc arcs, to adjust competing properties of foils for best compromise [1], (4) admixtures of boron and other elements to reduce shrinkage [1], (5) diamond foils made by chemical vapor deposition, for greater strength and heat tolerance [1,3]. Till now, most experience has been with arcevaporated foils, conveniently made in the areal density range 1-1000 mg/cm 2 ; above this range, graphite foils are typically used.…”

Preparation of self-supporting Au thin films on perforated substrate by releasing from water-soluble sacrificial layer

“…Watersoluble materials, such as sodium chloride (NaCl), nickel chloride, and betaine, were used as the sacrificial layers. [14][15][16][17][18][19][20][21][22][23][24][25] The releasing process of the thin film using a water-soluble material as a sacrificial layer is considered to be safer for humans and the environment than methods using a strong acid with the exception of nickel chloride, which is a carcinogenic material. 26) Gold leaf is a self-supporting Au film; however, it is too rough and insufficiently pure to be a suitable target for laserdriven ion acceleration experiments.…”

Influence of substrates on roughness of self-supporting Ni films

“…P Maier-Komor et al [1][2][3] prepared self-supporting C films with a total random orientation of nanocrystallites using a laser plasma ablation deposition system. Self-supporting tungsten foils [4], tungsten-carbon foils [5], chromium foils [6], beryllium foils [7] and large-area carbon foils with MgO coatings [8] were obtained by electron beam vapor deposition.…”