Elegant users forum

Dear Elham,

Please tell what exactly you do and what results/errors you get. We will get through this together.

Thanks, Vadim

Sara, you made a mistake in adding new elements to the element list. You modified makeElementListFile like this: lappend quadList QD1_${i}L#1 QF1_${i}L#1 QD2_${i}L#1 QF2_${i}L#1 lappend quadList QF2_${i}R#1 QD2_${i}R#1 QF1_${i}R#1 QD1_${i}R#1 lappend quadList bqf4_${i}L bqf3_${i}L bqf2_${i}L bqf1_${...

Hi Sara, My first guess would be that after you updated ubuntu, something changed regarding parallel submission of jobs calculating the beta function derivative. So to test it, change one option in the calculateTwissCorrection command: from "-useDQS 1" to "-useDQS 0". It would take longer to complet...

Sara, The correction program uses tag names for all elements. The tag names are built as <element-name>#<element-occurence>. For example, BQF1#3 is the third occurrence of BQF1 in the beamline. Your present lappend command adds SBB1A#4, SBB1A#8, and SBB1A#12 (and same for SBB1B). But there are only ...

Sara, First of all, you are correct -- the twiss correction program can be used for superbend lattice correction. To do that, you need to understand a few details, which I give below. The program calculateTwissCorrection requires many options. All those options are specified in the runCorrection scr...

Dear Sara, We do not use Elegant itself for beta beating correction. We use an external script that works much like orbit correction. First, it calculates beta function response matrix with respect to quadrupoles. The beta function response matrix is constructed this way: every column is a change du...

A response matrix fitting program (similar to LOCO) that is using elegant and SDDS tools is available for download on the AOP software webpage https://www.aps.anl.gov/Accelerator-Operations-Physics/Software The installation package consists of several tcl programs, tcl/tk GUI, examples, and instruct...