Belchenko Yu, Abdrashitov G, Ivanov A, Sanin A, Sotnikov O
Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
Rev Sci Instrum. 2016 Feb;87(2):02B120. doi: 10.1063/1.4934205.
High voltage holding of the large surface-plasma negative ion source with cesium deposition was studied. It was found that heating of ion-optical system electrodes to temperature >100 °C facilitates the source conditioning by high voltage pulses in vacuum and by beam shots. The procedure of electrode conditioning and the data on high-voltage holding in the negative ion source with small cesium seed are described. The mechanism of high voltage holding improvement by depletion of cesium coverage is discussed.
研究了具有铯沉积的大面积等离子体负离子源的高压保持特性。发现将离子光学系统电极加热到温度>100°C有助于在真空中通过高压脉冲和束流发射对源进行调节。描述了电极调节过程以及小铯种子负离子源中高压保持的数据。讨论了通过减少铯覆盖来改善高压保持的机制。
