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本文介绍在回旋加速器上,用氘束辐照天然铁内靶来制备~(57)Co。以氯化亚铁法把铁电镀到铜衬上,制得高纯度的铁内靶。镀铁溶液为203.3g/l Fe~(++)溶液,以纯铁为阳极,电镀时电压0.5V、电流1.5A、温度94—96℃、pH～1、时间～30min。铁内靶在受到氘束轰击时,以~(56)Fe(d,n)~(57)Co和~(57)Fe(d,2n)~(57)Co反应产生~(57)Co。为避免~(56)Fe(d,2n)~(56)Co反应,把靶头伸进到D型盒内适当的位置,使氖束能量从12.5MeV下降至8.3MeV以下。内靶装置能自动上
This article describes the preparation of ~ (57) Co on a cyclotron using a deuterium beam to irradiate the natural iron target. Iron ferrous chloride plating method to the copper lining, the high-purity iron target. Iron-plating solution is 203.3g / l Fe ~ (++) solution, with pure iron as the anode, the voltage 0.5V, current 1.5A, temperature 94-96 ℃, pH ~ 1, time ~ 30min. The target in iron reacts with ~ (56) Fe (d, n) ~ (57) Co and ~ (57) Fe (d, 2n) ~ (57) Co to produce ~ (57) Co when deuterium beam bombardment. In order to avoid the reaction of Fe (d, 2n) ~ (56) Co, the target was put into proper position in the D-shaped box to reduce the energy of neon beam from 12.5MeV to 8.3MeV. Internal target device can automatically