The development of a streak tube with improved time and spatial resolution
The development of a streak tube with improved time and spatial resolution
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DOI：
10.1117/12.2270599
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发表时间：
2017-02
期刊：
影响因子：
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通讯作者：
J. Howorth;J. Milnes;Y. Fisher;A. Jadwin;R. Boni;P. Jaanimagi
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文献类型：
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作者：
J. Howorth;J. Milnes;Y. Fisher;A. Jadwin;R. Boni;P. Jaanimagi
聚变诊断领域需要具有精确时间分辨率的光学记录仪器，其动态范围可达多个数量级。2012年，激光能量学实验室、Photek和Sydor仪器公司着手重新设计用于聚变诊断的改进型条纹管。作为基准，我们从Photek STY条纹管开始，因为管体可以容纳35 mm长的光阴极。电子光学模型是由美国的Paul Jaanimagi和Photek在一个平行的练习中进行的。进行了许多更改和修改：时间分辨率提高到5 ps，在高提取场操作下可用的阴极长度从20 mm增加到32 mm，并且与这种格式的其他管相比，离轴空间分辨率得到了大幅提高。几个管已建成和测试Sydor ROSS-5800条纹相机，并显示出大大提高了分辨率（MTF）。
The fusion diagnostic community require optical recording instruments with precise time resolution covering a dynamic range of many orders of magnitude. In 2012 the Laboratory for Laser Energetics, Photek and Sydor Instruments embarked on the re-design of an improved streak tube for fusion diagnostics. As a baseline, we started with the Photek STY streak tube because the tube body can accommodate a 35 mm long photocathode. Electron optical modelling was carried out by both Paul Jaanimagi in the US and by Photek in a parallel exercise. Many changes and modifications were made: the time resolution was improved to 5 ps, the usable cathode length was increased from 20mm to 32 mm under high extraction field operation and the off-axis spatial resolution was substantially improved compared to other tubes of this format. Several tubes have been built and tested in a Sydor ROSS-5800 streak cameras, and show greatly improved resolution (MTF).