Elegant users forum

Dear Michael Thanks for your reply. Then we are using the same algorithm for this simulation. Another thing has to take case is the time distance between bunches when bunches are soft. Within bunch, it is bin-by-bin process. Among bunches, the time distance from ith bunch to (i+1)th bunch become the...

Dear Michael I am doing benchmark when there are multi-particles in bunches in beam loading simulation. One thing I would like to confirm is about the approaches used in elegant. For example, when we cut one bunch into bins, I assume in elegant, the bunch passes through the cavity in a bin-by-bin pr...

Dear Michael, Great thanks for your reply. I think I got the approaches used in elegant for RFMode simulation. The confusion always comes from the reference frame chosen for rotation and "head" or "tail" particle convention. In my previous simulations, I always chose the reference rotation frame wit...

Dear Michael， The attached file includes an elegant input for my recent simulation, single cavity (RFMode element) only. It also includes 3 figures for comparison among the result between elegant and our code developed in house. Still one macro-particle in one bunch. The are several findings in my s...

Dear Michael, I thought elegant will turn turn off the quantum excitation effect once there is only one particle in one bunch. Following your suggestion, set QEXCITATION=0 on SREFFECTS elements helps to get a smooth beam induced voltage phase. As to the bunch separation time distance, it is supposed...

Dear Michael Thanks for your explanation. I got it. Assuming I have Np particle per bunch, in my script to prepare the train.sdds, I ensure that IDSlotsPerBunch=Np for all pages. And particleID in the first page varies from 1 to Np, in the 2nd page varies from np+ 1 to 2*Np... Then, if I set only on...

Dear Michael The explanation of the IDSlotSSperBunch: Number of particle ID slots reserved to a bunch" I guess I can simply set IDSlotSSperBunch value at the ith page as particleID (start_id at the i+1 page) - particleID( end_id at ith page). Or probably the safe way is to set IDSlotSSperBunch value...

Dear Michael, I am trying to run elegant with setting as shown in the attached file. In the setting, still the main cavity is the ideal RFCA element and the harmonic cavity is the rfmode element. Since the harmonic number is 3840 in our ring, the filling pattern is expressed as 3840 = 2* (100*10+920...

Thanks Michael. I got it.
I am also trying to do some benchmark study between elegant and a code developed in house.
Will let you know my process and it will be great if I can get further assistant from you.

Thanks again.
yours Chao

Dear All, This is Chao. Recently, I am looking back to the transient beam loading simulation with rfmode element in elegant. What I am trying to do is simulate a double rf system, where the main cavity is ideal (RFCA) and the harmonic cavity is rfmode element. With the setting in the attached file, ...