When I correct the chromaticity of my lattice to +0.01,the horizontal emittance seems to grow at large rms energy spread,0.9% or 1.2% etc...It contains two identical dipoles and several quadrupoles.I doubt that whether the high order dispersion isn't fully cancelled,or any other non-linear effects.And I have two simple questions:
1)There is &chromaticity to correct chromaticity in Elegant.Could I rearrange the sextupoles strengths to minimize emittance growth through Elegant?
2)If I want to check up on my supposition,how to read higher order dispersion through the .out file?
Thanks a lot!
Jiang
Tracking with large energy spread
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Re: Tracking with large energy spread
Jiang,
Attached are two examples. One shows how to compute the nonlinear dispersion and beta functions. The other shows how to use tracking with parallel elegant to reduce emittance growth. I hope you can adapt these to your problem.
--Michael
Attached are two examples. One shows how to compute the nonlinear dispersion and beta functions. The other shows how to use tracking with parallel elegant to reduce emittance growth. I hope you can adapt these to your problem.
--Michael
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- optimization1.zip
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- offMomentumTwiss2.zip
- (2.73 KiB) Downloaded 401 times