Search found 12 matches
- 06 Feb 2025, 02:19
- Forum: Dynamic Aperture
- Topic: DA in the presence of errors
- Replies: 0
- Views: 6518
DA in the presence of errors
Dear Dr. Borland, I have one question. I employed octupoles in the lattice of ILSF and optimized it to find the DA. Then, I considered the errors in finding the DA in a real lattice. I found this: Picture1.png I try something to increase the DA in the presence of errors. For example, reducing errors...
- 18 Oct 2024, 02:29
- Forum: General
- Topic: Difference between fractional tune in ADTS tracking and working point
- Replies: 2
- Views: 9218
Re: Difference between fractional tune in ADTS tracking and working point
Hello Michael,
I did it and my problem is solved. I really appreciate your help.
Thank you.
Kowthar
I did it and my problem is solved. I really appreciate your help.
Thank you.
Kowthar
- 22 Sep 2024, 08:15
- Forum: General
- Topic: Difference between fractional tune in ADTS tracking and working point
- Replies: 2
- Views: 9218
Difference between fractional tune in ADTS tracking and working point
Hello Michael and all, I calculated the tune shift with amplitude by tracking and using SDDSNAFF. I found the following graphs for the horizontal and vertical directions. Tune y.png Tunex.png Now the problem is that the value of the fractional tune at the (x0=0, y0=0) is (0.32, 0.16) which does not ...
- 29 Jan 2024, 14:04
- Forum: General
- Topic: ADTS calculation
- Replies: 2
- Views: 11890
Re: ADTS calculation
Thank you for your useful comments. As you mentioned, I used the tune footprint script to find the tune vs. amplitude. There are two points: 1. I do not see why the trend of the plot of the tune footprint script is not reasonable! 2. I used another script in which I tracked particles and then found ...
- 25 Jan 2024, 13:52
- Forum: General
- Topic: field mapping by BMAPXY
- Replies: 7
- Views: 16136
Re: field mapping by BMAPXY
Dear Michael,
Thank you for your comment.
I have a 40401*4 grid, including x,y, Bx, and By.
I choose 25 or even 50 rows of data and make another grid to do field mapping with bmapxy.
I hope the grid works this time.
Best Regards
Thank you for your comment.
I have a 40401*4 grid, including x,y, Bx, and By.
I choose 25 or even 50 rows of data and make another grid to do field mapping with bmapxy.
I hope the grid works this time.
Best Regards
- 13 Jan 2024, 08:12
- Forum: General
- Topic: ADTS calculation
- Replies: 2
- Views: 11890
ADTS calculation
Dear Michael, I am trying to plot amplitude-dependent tune shift using TwissCalculation. I calculated amplitude-dependent tune shift manually by using the tracking script. I found the tune in different y and constant x and vice versa, but the points are limited. I am going to find ADTS in x=-20mm to...
- 13 Jan 2024, 07:53
- Forum: General
- Topic: field mapping by BMAPXY
- Replies: 7
- Views: 16136
Re: field mapping by BMAPXY
Dear Michael, During working with BMAPXY, I was not able to map the quadrupole field using this function. As a result, I made changes in my ling CSV file (as attached "small1 or 2"). Unfortunately, I cannot do field mapping yet. In small1.csv, there are 4 columns (X, Y, Bx, By), and in small2.csv, t...
- 20 Oct 2023, 06:40
- Forum: General
- Topic: orbit ocrrection
- Replies: 2
- Views: 11678
Re: orbit ocrrection
Dear Michael,
Thank you for your help.
Best Regards
Thank you for your help.
Best Regards
- 20 Oct 2023, 02:22
- Forum: General
- Topic: field mapping by BMAPXY
- Replies: 7
- Views: 16136
Re: field mapping by BMAPXY
Dear Michael,
Thank you for your comment.
So it is needed to correct the csv file. I'll try it.
Thank you once again.
Best Regards
Thank you for your comment.
So it is needed to correct the csv file. I'll try it.
Thank you once again.
Best Regards
- 04 Oct 2023, 08:51
- Forum: General
- Topic: orbit ocrrection
- Replies: 2
- Views: 11678
orbit ocrrection
Dear Michael, I am trying to correct the orbit in the x and y directions. I studied the related topics in the forum and wrote an ele file to correct the orbit. My aim is to find the DA in the presence of misalignments and errors. I used two types of commands: 1. &error_element name=*, element_type=*...