Pulsed electron cyclotron maser experiments
Pulsed electron cyclotron maser experiments
复制标题
脉冲电子回旋脉塞实验
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
A. S. Hasaani
中科院分区：
文献类型：
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作者：
A. Phelps;T. Garvey;A. S. Hasaani
本文报道了两台脉冲电子回旋脉泽的结构和运行情况。微波输出的测量和比较。第一个实验用屏蔽二极管产生脉冲电子束，τ = 1 μS，10 A ≤ I ≤ 100 A。该环形光束穿过一个多模腔，该腔施加了一个磁场，磁场范围为0.1 T至0.6 T，测量的X波段发射功率高达100 kW。第二个实验使用场浸没二极管，其产生高达1 kA的电子束电流。在本实验中，所施加的磁场也可以变化到0.6T。见证板实验结果表明，该方法实现了光束的稳定传输。测量的微波发射功率不大于第一个实验中的功率，但是观察到脉冲长度随着磁场的增加而增加3到5倍，这取决于条件。
Abstract The construction and operation of two pulsed electron cyclotron masers are reported. Measurements of the microwave outputs are presented and compared. The first experiment uses a shielded diode to produce a pulsed electron beam, τ ≲ 1 μS, 10A ≤ I ≤ 100 A. This annular beam is passed through a multimode cavity to which a magnetic field, which may be varied from 0·1T to 0·6 T, is applied, X-band emissions of up to 100 kW are measured. The second experiment uses a field-immersed diode, which produces an electron beam current of up to 1 kA. The applied magnetic field can also be varied up to 0·6 T in this experiment. Witness-plate results demonstrate that stable beam propagation is achieved. The measured power of the microwave emission is no greater than in the first experiment, but the pulse length is observed to increase by a factor of between 3 and 5, depending upon the conditions, as the magnetic field is increased.