Open ustc-cheese opened 1 year ago
How are you using ocelot? Maybe there is a mistake in usage (or maybe with OCLEOT)
I think historically @iagapov was more responsible for the circular machine bits.
I have never seen any discrepancies in linear optics with elegant. If you send me input files I can have a look at the potential issues.
On 26. Jul 2023, at 09:30, Stuart Walker @.***> wrote:
How are you using ocelot? Maybe there is a mistake in usage (or maybe with OCLEOT)
I think historically @iagapov https://github.com/iagapov was more responsible for the circular machine bits.
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HI, please send a lattice of the cell in ocelot format and elegant solution for this lattice. For periodic solution I use analytics. It will be interesting to see why this approach did not give you a solution.
Hi, Thank you all~ Here are my ocelot .py file and elegant .lte file at the attached zip file. ringopt.zip
Hi, I found that you use in elegant these elements Q3: & MULT, L= 0.2433800000000000, & ORDER= 1, & SYNCH_RAD= 0, & KNL= 1.22251759449587152.4450351889917430, & N_KICKS= 40
and
Q333: & MULT, L= 0.1829233000000000, & ORDER= 1, & SYNCH_RAD= 0, & KNL= 1.79581384805425563.5916276961085112, & N_KICKS= 40
As far I understood it is quadruple. Why does KNL value look so strange? What is the values? and also what is the solution you got with elegant? I do not have elegant installed right now and can not check it. Anyway, in ocelot you substituted it with multipole which is zero length element. I recommend to try with quadruple. Also check if elegant and ocelot versions are really the same.
Hi
Thank you.
Actually the lte file is generated by other colleges using AT-MATLAB. We have tried diffrenent type of MULT but only this format can find a peroidic solution.
When I transfer Q3 & Q333 to Quad in elegant, there appers peroidic solution.
Q3: &
KSEXT, L= 0.2433800000000000, &
K1= 5.0231, &
K2= 255.0699
Q333: &
KSEXT, L= 0.1829233000000000, &
K1= 9.8173, &
K2= 161.2832
I also have tried transfer Q3 & Q333 to Quad in ocelot with the same parameters above, there still can not make a solution.
BTW, the versions pf elegant and ocelot are all the latest.
Hello Prof. Tomin I am currently utilizing Ocelot as a storage ring tool to address some ring-based problems. However, I have encountered an issue where the lattice I provided does not yield a periodic solution, whereas ELEGANT shows a periodic solution. I would greatly appreciate your guidance on how to resolve this discrepancy. Thank you in advance for your reply.