静电振动法制备核靶
THE PREPARATION OF NUCLEAR TARGETS WITH ELECTRICITY VIBRATION
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摘要: 描述了静电振动制靶方法。该法的基本过程是细微粒子在静电场中作振动并在电极上沉积成膜。用静电振动法已制成20 多种自支撑靶和有衬底靶,靶的质量厚度范围为10~1300 μg/cm 2。靶的均匀性用α测厚仪测量,一般好于96 % 。Abstract: A new type deposition method which is based on a vibrational motion of microparticles in electrostatic field between parallel electrodes is described. Self supporting targets and targets on backings with mass thickness between 0.01 and 1.3 mg· cm -2 from 21 different elements have been prepared by the method. The target uniformity measured by the α thickness gauge is better than 96 %.