Elegant users forum

Hi, I run genetic optimizer, an example file of APS with optim1.sdds. I need help for how to change column value and parameter value in optim1.sdds. I have column and parameter separately. How we can change the column value and parameter value and combine it to make new optim1.sdds. I am attaching o...

Dear Dr. Michael,

Thanks for kind reply of rpn expression explanation.

With regards,
Pradeep Kumar

I need help to know about the expression of modulation amplitude expressed in RPN in modulate_elements command as follows: &modulate_elements name = Q, item = TOTAL, expression="3.68e-6 / 5000 / 1 min2 abs" multiplicative=1 differential=0 &end What is the value of RPN expression "3.68e-6 / 5000 / 1 ...

Dear Dr. Borland, I tried to estimate filter coefficients using Basic.twi file using command TFBFirSetup. I need help to know how we define the driver strength in lattice.lte file (example file multibunchCollectiveEffects) xdriver: TFBDRIVER,ID=x-plane,output_file="%s.xfb",strength="-20 rec" ydriver...

Dear Dr. Borland,
Please find attached Basic.twi file. Thanks.
Pradeep Kumar

I want to do simulation study in ultra low emittance ring using transverse bunch by bunch feedback. To understand the simulation, I am using example file of collective effect in APSU ring. I tried to estimate the filter coefficient as shown in lattice.lte file for DRIVER1 and DRIVER2 (file attached)...

Hi, I am using elegant 2020.5. I tried to generate bunch train using elegant example but facing problem.First, I run generateBunch command and get bunch.sdds file but when I use command generateBunchTrain I get generateBunchTrain command not found. The screen shot of command and bunch.sdds file is a...

Can we include Intra Beam Scattering (IBS) for the study of beam instability in presence of Long Range Resisitive wall wake (LRWAKE) using elegant/pelegant code? Please help.
Pradeep Kumar

Dear Dr. Borland,
I added USE_DISCONNECT =1 on all the WATCH elements, but it give same error. Please find attached lattice6.lte and error for your comments and correction.
with regards,
Pradeep Kumar

Dear Dr. Borland,
I tried to implement but still the problem persist. Please see the lattice6.lte, run6.ele and error showing "Unable to open file run6.wp1006 for writing (SDDS_InitializeOutput)" for your comments and correction.
with regards,
Pradeep Kumar