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用高压倍加器加速能量为几百keV的氘离子。束流强度可达几十到几百mA量级。由于T(
d
,
n
)
4
He反应在这一能区具有较高的反应截面,通常用它轰击氘钛靶产生中子作为强中子源。假定能量为400keV的氘离子束流强度为5mA,它打在靶上产生的热功率为2kW。如果靶子得不到有效的冷却,靶中吸附的氚将迅速地从钛层逸出。使中子源强度急剧地下降。
A rotatory target of a 5cm diameter was described. Its rotatory speed was about 40~360 rpm.
The experimental result showed that the neutron intensity from reaction T (
d
n
)
4
He can be reached to (4.83±0.10) 10
11
n/s. The energy and intensity of the incident
d
particles was 400keV and 2.7mA respectively. The half-life of the target was 10 mAh.
R. Booth , Nucl. Instr. Meth . , 145 , 25 ( 1977 ).
J. B. Howrst , Nucl. Instr. Meth. , 145 , 19 ( 1977 ).
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