Target preparation by means of the vibrational motion of particles at one atmosphere

The new target preparation method, which is based on the vibrational motion of microparticles in the electric field between parallel electrodes, has b een applied to prepare Pd and Si self-supporting foils at one atmosphere in air. We successfully prepared targets of 0.10-0.50 mg/cm(2) thick with an electrode separation of 10 mm and an applied voltage of 10 kV. The impuriti es in the prepared targets were examined by using the Rutherford scattering of a 65 MeV alpha-beam. It was found that the impurity amounts depend on t he prepared element. (C) 1999 Elsevier Science B.V. All rights reserved.