Anode and cathode of identical shape and material were suspended above a ThO
2 powder layer in a beaker in atmospheric pressure at room temperature to obtain active deposits containing ThB etc. on the cathode. The items of experiment were:
(1) Material of electrode plates: Al, Ti, Ni, Zn, Cd and Pt, both bare and with active charcoal powder coating
(2) Applied D.C. potential, 0100 V.
(3) Distance between the electrodes was varied
(4) Height of electrode above ThO
2 layer was varied
(5) Surface area of electrode plate was varied
(6) Surface of spreaded ThO
2 layer was varied
(7) Duration of electro-deposition was varied
(8) Thickness of ThO
2 powder layer was varied
The active deposit was examined radiochemically.
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