Search found 12 matches

by Kowthar_Noori
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...
by Kowthar_Noori
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
by Kowthar_Noori
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 ...
by Kowthar_Noori
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 ...
by Kowthar_Noori
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
by Kowthar_Noori
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...
by Kowthar_Noori
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...
by Kowthar_Noori
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
by Kowthar_Noori
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
by Kowthar_Noori
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=*...