Elegant users forum

Hi, I am currently running the elegant simulation along the chicane type bunch compressor, and noticed that the emittance after the BC is slightly different when using different CSRDRIFT length (e.g., between second and third dipole magnets while maintaining same distance between them together with ...

Dear Michael, Thank you for your kind help and suggestions for the analysis! As a matter of fact, I checked with the energy spread of 0.1 % and 1 %, and there was significant reduction of the emittance increasing. Anyhow, following your analysis, I think I will have to take a closer look at the seco...

Dear Michael, Hello, I am currently studying the correction of the aberration using the sextupole magnet. For this study I used dog-leg achromat, and I did the optimization of the chromatic amplitude (Wx and Wy) and second-order dispersion (T166 and T266) using two pairs of the sextupole magnets. In...

Dear Michael,

Thank you again for pointing out the momentum convention...!
it works perfectly using the plaindata2sdds, and I can go to the next step very easily

Best regards,
Seongyeol

Dear Michael, I have another question: I am doing the calculation using extracted data from ~.out, which is (x, x', y, y', pz, t). After some modifications of the data, I would like to use this data for the ELEGANT tracking. I was wondering if there is way to convert the data to the sdds format dire...

Dear Michael, I think I solved the problem! Thing was because of the calculation of delta (fractional energy spread in 6D phase space). I always set delta to be (p - <p>) / <p> instead of (p - pCentral) / pCentral. I thought since the momentum is slightly changed due to the CSR, so that I thought I ...

Dear Michael, Thank you for your explanation. However, I do not understand well about how to calculate the dispersion by integration through the dipole. Could you please let me know more in detail about this dispersion computation? --------------------------------------------------------------------...

Dear all, Hello, I am currently studying the csr effects, and using the very simple case, I am trying to understand how transverse coordinates x and x' are changed with the csr effects. In this case, I set CSRCSBEND with 'LINEARIZE = 1' to force the matrix calculation and 'STEADY_STATE = 1' for the ...

Dear Michael, Thank you for your detailed explanation. As a matter of fact, I played with this by changing SG_halfwidth, number of kicks and bins, ISR, but basically the amount of energy spread by CSR was still small. However, I understood that the reason why there is a difference is due to the algo...

Dear all, Hello, I am currently studying the CSR induced energy spread and the emittance growth. Following the references (PRST-AB 4, 070701, PRST-AB 17, 060701, etc ...), rms energy spread induced by CSR can be calculated by the equation (related to the beam charge, dipole length and bending radius...