Elegant users forum

Any thoughts?

Hi Michael, I am investigating the CSR effect in the LEUTL beamline (attached are the *.lte and *.ele files). My first step is to compress the bunch as much as possible in the bunch compressor to exacerbate CSR. I am having trouble doing this and I am only able to get down to ~300um (Yine has told m...

Greetings, I am interested in calculating second order correlations between the energy deviation and longitudinal position (namely......<s*delta*delta>), I looked throughout the Elegant manual and outputs but there does not seem to be any data on this. Does any one know o an tricks or shortcuts to f...

Thanks for the reply Michael! Greatly appreciated...

...follow up question: Is there anyway I could cut the tail of the particle distribution, say at the entrance of the 3rd bend??

Thanks again

Any thoughts Michael???

HI All, For the given lattice (simple accelerating section to chicane) the data from the R-matrix output file does not match well with the twiss output file: 1. etax does not equal R16 2. etaxp does not equal R26 3. The R56 values throughout the chicane at the end (the only source of R56 and R16) of...

Hi Michael, So, Ive been looking at this issue for a little while and think I may have some idea: The strong compression causes a long tail towards the end of the compression cycle (Bends 3 & 4). So, when the user defines the BINS for the CSRSBEND element Elegant calculates the BinSize according to ...

Hi Michael,

So, the ECNX over compensates and subtracts off these CSR-induced correlations? Am I correct in stating that in this case ENX would be a more accurate depiction of the transverse emittance?

Thanks

Hmmm, interesting...thanks for your help Michael. I was wondering does turning off smoothing increase accuracy of results? Also, I have a feeling that the long tailed distribution this *.lte file creates is the cause of the low CSR. I am looking into it and working it into my analytical calculations.

Any ideas???