發(fā)布時(shí)間：2018-11-26 06:44

【摘要】：理論上提出了平頂正弦相位板星冕儀,該星冕儀可作為正弦相位板星冕儀和六平臺(tái)相位板星冕儀的推廣形式。平頂正弦相位板具有角向的雙周期結(jié)構(gòu),每個(gè)周期中都包含兩個(gè)平頂?shù)陌胝覅^(qū)域和一個(gè)平坦區(qū)域。解析地推導(dǎo)了該相位板的寬帶工作條件。在這個(gè)寬帶工作條件的一端,這個(gè)相位板可以退化為正弦相位板;在另一端,這個(gè)相位板可以退化為六平臺(tái)相位板。數(shù)值計(jì)算結(jié)果表明,平頂正弦相位板星冕儀與這兩種特例情況一樣,具有良好的消色差能力。
[Abstract]:In this paper, a flat-top sinusoidal phase plate coronation instrument is proposed, which can be used as an extension of the sine phase plate coronation instrument and the six-platform phase plate coronation instrument. The flat top sinusoidal phase plate has a biperiodic structure with an angular direction. Each period consists of two half-sinusoidal regions with flat top and a flat region. The broadband working conditions of the phase plate are derived analytically. At one end of the broadband working condition, the phase plate can degenerate into a sinusoidal phase plate, and at the other end, the phase plate can degenerate into a six-platform phase plate. The numerical results show that the flat-top sinusoidal phase plate coronation instrument has good achromatic ability as in these two special cases.
【作者單位】： 上海大學(xué)理學(xué)院物理系;
【分類(lèi)號(hào)】：P111.4
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本文編號(hào)：2357619