CAJ | 학술논문

上海同步辐射装置(SSRF)是目前在建的第3代专用同步辐射光源.其储存环电子能量3.5GeV,设计束团发射度3.9nm-rad.托歇克寿命将是影响束流寿命的最主要因素,它主要受限于储存环的能量接受度.储存环的能量接受度不但取决于高频电压,同时也受动力学孔径和物理孔径的影响.因此能量接受度的计算将是复杂的.通过计算机模拟跟踪的方法计算储存环各点的能量接受度,其程序是建立在Accelerator Toolbox(AT)基础上的自编程序.通过这些能量接受度数据给出更加准确的托歇克寿命,并且分析了感兴趣的不同运行条件下的托歇克寿命的变化情况.
상해동보복사장치(SSRF)시목전재건적제3대전용동보복사광원.기저존배전자능량3.5GeV,설계속단발사도3.9nm-rad.탁헐극수명장시영향속류수명적최주요인소,타주요수한우저존배적능량접수도.저존배적능량접수도불단취결우고빈전압,동시야수동역학공경화물리공경적영향.인차능량접수도적계산장시복잡적.통과계산궤모의근종적방법계산저존배각점적능량접수도,기정서시건립재Accelerator Toolbox(AT)기출상적자편정서.통과저사능량접수도수거급출경가준학적탁헐극수명,병차분석료감흥취적불동운행조건하적탁헐극수명적변화정황.
Shanghai Synchrotron Radiation Facility (SSRF) is a 3rd generation synchrotron light source which lifetime is the dominant beam lifetime in SSRF for such a small beam emittance. The Touschek lifetime is the function of the energy acceptance of the storage ring. The energy acceptance is not only dependent on the RF voltage, but also restricted by the small physical or dynamic apertures, which makes the calculation complicated. In this paper the energy acceptances along the storage ring are calculated by the 6D tracking method based on the program Accelerator Toolbox (AT). Using those energy acceptance data, we can give a more close evaluation of the Touschek lifetime for different kind of conditions which we are interested in.