Paper | Title | Page |
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TUPME021 | Optimization Parameter Design of a Circular e+e− Higgs Factory | 1616 |
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Funding: NSFC:11175192 In this paper we will show a genral method of how to make an optimized parameter design of a circular e+e− Higgs Factory by using analytical expression of maximum beam-beam parameter and beamstrahlung beam lifetime started from given design goal and technical limitations. A parameter space has been explored. |
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TUPME022 | Study on the Single Bunch Transverse Emittance Growth in BAPS | 1619 |
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Funding: Supported by the National Foundation of Natural Sciences Contract 11175192. Beijing Advanced photon Source (BAPS) is a proposed next synchrotron radiation facility which has much smaller transverse emittance after SSRF in China, with 5 GeV energy and 1.5 km circumference. In order to explore how small the transverse emittance we can get on BAPS, this paper studies the single bunch transverse emittance growth due to short range wakefield according to J. Gao’ theory. The mechanism of wakefield induced single bunch emittance is explained first and then the transverse emittance at the design beam current is estimated. Also, the tolerances for the transverse loss factor and the vacuum chamber misalignment (or the closed orbit distortion) are presented. |
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