| 断层扫描技术在束流发射度测量中的应用 |
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| 引用本文： | 曹泽新,施义晋.断层扫描技术在束流发射度测量中的应用[J].强激光与粒子束,2001,13(5):637-640. |
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| 作者姓名： | 曹泽新 施义晋 |
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| 作者单位： | 中国原子能科学研究院， 北京 102413 |
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| 摘 要： | 断层扫描技术可为束流诊断提供一种与束流模型无关的新方法，该方法至少能够提高一个量级的束流发射度测量精度，而且可以得到足够分辨率的束流横向四维相空间分布。为此建立了迭代重建算法（ART）程序，作为例子重建了一个二维相空间束流图像，获得了很有意义的结果，表明该技术可以为研究束流传输、验证束流动力学理论提供可靠的束流相空间参数。
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| 关 键 词： | 相空间密度分布函数 断层扫描技术 迭代重建算法 |
| 文章编号： | 1001-4322(2001)05-0637-04 |
| 收稿时间： | 2001/3/13 |
| 修稿时间： | 2001年3月13日 |
Applications of CT in measuring beam transverse-phase-space density |
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| CAO Ze xin,SHI Yi jin.Applications of CT in measuring beam transverse-phase-space density[J].High Power Laser and Particle Beams,2001,13(5):637-640. |
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| Authors: | CAO Ze xin SHI Yi jin |
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| Institution: | China Institute of Atomic Energy, P.O.Box 275-18, Beijing 102413, China |
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| Abstract: | The application of CT can supply a new method of diagnosing beam independent of the beam model. By using this technology a precise two dimensions transverse phase space density(2D TPSD) satisfying for a variety of applications could be obtained. This paper presents a code for the iteration rebuild algorithm (ART) of the method. As an example, the 2D TPSD image by using this method was obtained. It is proved that this method could improve the measuring precision of the beam emittance that will provide a new checking for transport beam theories and beam dynamic theories. |
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| Keywords: | transverse phase space density tomography iteration rebuild algorithm |
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