發(fā)布時(shí)間：2018-03-22 11:16

  本文選題：X射線　切入點(diǎn)：大面積軔致輻射二極管　出處：《強(qiáng)激光與粒子束》2017年06期 　論文類型：期刊論文

【摘要】：為了設(shè)計(jì)與前端低阻抗同軸磁絕緣傳輸線耦合的大面積軔致輻射二極管,提出了一種利用錐形磁絕緣傳輸線(MITL)結(jié)合陰極開孔結(jié)構(gòu)來對(duì)電子輸運(yùn)進(jìn)行調(diào)節(jié)的二極管設(shè)計(jì)方案。該結(jié)構(gòu)的主要特點(diǎn)是在不外加電子輸運(yùn)調(diào)控裝置的前提下,利用大角度的入射電子產(chǎn)生軔致輻射,在靠近二極管出射窗附近形成大面積準(zhǔn)均勻輻射區(qū)。采用二維粒子模擬與蒙特卡羅模擬(MCNP 4C)相結(jié)合的數(shù)值模擬方法對(duì)二極管進(jìn)行了模擬和分析,對(duì)于如何構(gòu)建更好反映角向均勻的MCNP源提出了新的想法。模擬結(jié)果表明,該設(shè)計(jì)方案可以實(shí)現(xiàn)在不外加電子輸運(yùn)調(diào)控裝置的情況下,在二極管后端得到均勻大面積軔致輻射區(qū)。
[Abstract]:In order to design a large area Bremsstrahlung diode coupled with the front end low impedance coaxial magnetically insulated transmission line, In this paper, a diode design scheme of adjusting electron transport by using tapered magnetically insulated transmission line (mitl) combined with cathode opening structure is presented. The main feature of the structure is that the electronic transport control device is not applied. Bremsstrahlung radiation is produced by large angle incident electrons, A large area of quasi-uniform radiation region is formed near the output window of the diode. The diode is simulated and analyzed by a numerical simulation method, which combines two-dimensional particle simulation with Monte Carlo simulation of MCNP4C. A new idea on how to construct a MCNP source with uniform angle is put forward. The simulation results show that the proposed scheme can achieve a uniform Bremsstrahlung region at the back end of the diode without the addition of an electronic transport control device.
【作者單位】： 中國(guó)工程物理研究院流體物理研究所脈沖功率科學(xué)與技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【分類號(hào)】：TN31
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本文編號(hào)：1648408