Search found 14 matches

by Nagaoka
22 Jan 2024, 04:55
Forum: Ring Tracking
Topic: Search of closed orbit in a ring with BGGEXP elements
Replies: 2
Views: 6088

Re: Search of closed orbit in a ring with BGGEXP elements

Dear Michael,

I thank you very much for your helpful feedback despite your supposedly very high workload during this period!
I shall carefully follow your suggestions and see what I shall get.

Thanking you again and my apologies for my late feedback to your message,
Ryutaro
by Nagaoka
01 Nov 2023, 15:23
Forum: Ring Tracking
Topic: Search of closed orbit in a ring with BGGEXP elements
Replies: 2
Views: 6088

Search of closed orbit in a ring with BGGEXP elements

Hello, I am investigating the closed orbit distortion possibly created by dipoles which are all represented by BGGEXP elements obtained from numerical field data fitted by the GGE method available in elegant. I have used the following command block for the closed orbit search: &closed_orbit output="...
by Nagaoka
30 Oct 2023, 13:50
Forum: Ring Tracking
Topic: Tracking of a single particle with given initial coordinates
Replies: 1
Views: 4350

Re: Tracking of a single particle with given initial coordinates

Hello, While waiting to get your kind feedback, I looked into related exchanges in the Forum and found that use and declaration of centroid[] in the input block &bunched_beam, along declaration of some orbit conditions in &track could respond to my wanted actions. So please let me pursue this possib...
by Nagaoka
27 Oct 2023, 14:40
Forum: Ring Tracking
Topic: Tracking of a single particle with given initial coordinates
Replies: 1
Views: 4350

Tracking of a single particle with given initial coordinates

Hello, Please let me to ask you a question on a very simple operation using elegant: I would like to track a single particle with a given set of initial coordinates (x,x',y,y',delta) and track it over a specified beamline (lattice) and extract its final coordinates at the end of the beamline. I went...
by Nagaoka
27 Oct 2023, 14:00
Forum: Ring Tracking
Topic: Access to tracking_based_matrices
Replies: 2
Views: 4768

Re: Access to tracking_based_matrices

Hello Michael, I thank you very much for your helpful instruction. I just tried using this option and I do get matrices for each element in the beamline as well as concatenated matrices. I suppose that the matrices for the BGGEXP elements are obtained from many particles tracking. The convention for...
by Nagaoka
26 Oct 2023, 13:41
Forum: General
Topic: Use of the function computeCBGGE
Replies: 2
Views: 5423

Re: Use of the function computeCBGGE

Hello Michael, I thank you very much for your help! By applying your magic SDDS command, the GGE decomposition indeed worked well on the newly created data set! I see that I should have better understood the meaning of the error message and eliminated this error myself! Thank you anyway for your kin...
by Nagaoka
23 Oct 2023, 06:23
Forum: Ring Tracking
Topic: Access to tracking_based_matrices
Replies: 2
Views: 4768

Access to tracking_based_matrices

Hello,

I would like to know if there is a way to write out and have access to tracking_based_matrices obtained such as on a BGGEXP element.

Thanking you in advance for your kind instruction,
Ryutaro Nagaoka
by Nagaoka
19 Oct 2023, 15:11
Forum: General
Topic: Use of the function computeCBGGE
Replies: 2
Views: 5423

Use of the function computeCBGGE

Hello Michael, After having managed to use the function computeRBGGE thanks to your and Ryan's help, I am now trying to use the function computeCBGGE, but cannot avoid getting the message "Error: delta phi varies by more than 1e-6". Since for this latter function there is an example, I tried to foll...
by Nagaoka
05 Apr 2023, 13:31
Forum: General
Topic: Use of the function computeRBGGE
Replies: 10
Views: 11711

Re: Use of the function computeRBGGE

Hello Michael, First of all, many thanks once again for your help that allowed me to set up a procedure (using the SDDS commands you indicated) to prepare the SDDS data files needed. I finally managed to make the GGE decomposition with the magnet data set that you saw. In doing so, I used the option...
by Nagaoka
29 Mar 2023, 09:23
Forum: General
Topic: Use of the function computeRBGGE
Replies: 10
Views: 11711

Re: Use of the function computeRBGGE

Michael,

I thank you so much for having spent your time diagnosing my problem and the numerical data (including detection of my error on the unit)! I shall follow your suggestions and redo the datafile production properly using your sdds commands.

Ryutaro