中子发生器用场蒸发氘离子源
A field evaporation deuterium ion source for neutron generators
摘要：
原理验证实验已经证明了基于静电场蒸发的氘离子源用于紧凑的、高输出的氘-氚中子发生器。离子源主要产生原子氘和钛离子。在不到20 ns的时间内，可以从单个针尖上去除和电离100多个单层的氘代钛薄膜。测量结果表明，使用微加工尖端阵列，氘离子源可以提供足够的离子流，以产生10^9至10^10 n/cm ^2的尖端阵列面积。
英文摘要：
Proof-of-principle experiments have demonstrated an electrostatic field evaporation based deuterium ion source for use in compact, high-output deuterium-tritium neutron generators. The ion source produces principally atomic deuterium and titanium ions. More than 100 monolayers of deuterated titanium thin film can be removed and ionized from a single tip in less than 20 ns. The measurements indicate that with the use of microfabricated tip arrays the deuterium ion source could provide sufficient ion current to produce 10^9 to 10^10 n/cm^2 of tip array area.
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