Dear michael,
I am late to say thanks to you for your reply.
We are doing coupling study by using and referring attached files in your reply.
Thanks a lot.
Sincerely,
Gyeongsu Jang
Search found 11 matches
- 31 Mar 2021, 01:57
- Forum: Ring Tracking
- Topic: Wrong emittance ratio after tracking full coupling beam.
- Replies: 7
- Views: 7334
- 21 Jan 2021, 03:05
- Forum: Ring Tracking
- Topic: Wrong emittance ratio after tracking full coupling beam.
- Replies: 7
- Views: 7334
Re: Wrong emittance ratio after tracking full coupling beam.
Dear Michael, I appreciate your reply the previous question. However. the result that we get from your reply reveals that the both of horizontal and vertical emittances become 59 pm the natural emittance of our ring after sufficient turns. Round beam emittance in our lattice is 39 pm. We tried to re...
- 14 Jan 2021, 03:12
- Forum: Parallel Elegant
- Topic: gpu-elegant doesn't work for dynamic aperture tracking
- Replies: 1
- Views: 11419
gpu-elegant doesn't work for dynamic aperture tracking
Hello, I tried to use gpu-elegant . As far as I know, there is no special command or additional coding to use gpu-elegant . Just replacing the " elegant " to " gpu-elegant " is okay. To check it, I tested the gpu-elegant with the elegant examples(which is on the aps elegant web site). First PAR/twis...
- 29 Oct 2020, 21:36
- Forum: Ring Tracking
- Topic: Wrong emittance ratio after tracking full coupling beam.
- Replies: 7
- Views: 7334
Re: Wrong emittance ratio after tracking full coupling beam.
Dear michael,
I appreciate your reply.
I will refer to your comments and attached files.
Sincerely,
Gyeongsu Jang
I appreciate your reply.
I will refer to your comments and attached files.
Sincerely,
Gyeongsu Jang
- 02 Aug 2020, 21:35
- Forum: Ring Tracking
- Topic: Wrong emittance ratio after tracking full coupling beam.
- Replies: 7
- Views: 7334
Re: Wrong emittance ratio after tracking full coupling beam.
Dear michael, I am attaching lte file with skew quadrupoles and ele file for running elegant. You can see S31ACORRECTOR , S32ACORRECTOR, and so on elements In lte file. In these elements, there are QS31A, QS32A, and so on elements. These elements are skew quadrupoles. There are macros such as <latti...
- 31 Jul 2020, 02:57
- Forum: Ring Tracking
- Topic: Wrong emittance ratio after tracking full coupling beam.
- Replies: 7
- Views: 7334
Wrong emittance ratio after tracking full coupling beam.
Dear, everyone I put 12 skew quadrupoles at lte file and adjusted tunes such that beam lies in different resonance. I verified the full coupling happened from twi file as below. couplingIntegral 6.959754783793667e-03 couplingDelta 9.320972046111820e-05 emittanceRatio 9.998206684736263e-01 I tracked ...
- 20 Jul 2020, 03:15
- Forum: Parameter Scanning
- Topic: The meaning of the input parameters on the command "perturbation"
- Replies: 2
- Views: 13238
Re: The meaning of the input parameters on the command "perturbation"
Thank you I will check it more by myself. I have one more question. If I want to check the applied multipole errors. Where can I see it? Specially I want to know the random multipole is well applied for each quadrupole or sextupole. In *.lte file, I insert the random multipole error for the quadrupo...
- 13 Jul 2020, 03:08
- Forum: Ring Tracking
- Topic: Beam lost in a single turn. Why does it happens? Is it just a numerical error?
- Replies: 2
- Views: 6655
Re: Beam lost in a single turn. Why does it happens? Is it just a numerical error?
Thank you for your reply. I think the centroid motion with the lost particle's initial condition can't ensure the same tracking results. I revised some of your script and tried to check the single particle motion in all position s. In that case, the recorded data of the watch elements and centroid m...
- 09 Jul 2020, 02:27
- Forum: Parameter Scanning
- Topic: The meaning of the input parameters on the command "perturbation"
- Replies: 2
- Views: 13238
The meaning of the input parameters on the command "perturbation"
The elegant code offers the function that can generate random multipole error coefficients with the input parameters I saw the example PAR/randomMultipoles There, by using the sddsrandmult code, the multipole coeffecients are calculated. However, I am confused the meaning of the input parameters suc...
- 03 Jun 2020, 20:04
- Forum: Ring Tracking
- Topic: Beam lost in a single turn. Why does it happens? Is it just a numerical error?
- Replies: 2
- Views: 6655
Beam lost in a single turn. Why does it happens? Is it just a numerical error?
Many studies shows that the dynamic aperture with RF reduces the dynamic aperture area compared to the dynamic aperture without RF. I tried to find out why does it happens. I tracked the particles with elegant. First I put the watch element at some place and plot the x or y along the # of turn. I re...