Problems with error studies using 2.23.1.7 TraceWin version

[Bruce Yee]

Dear Didier,

I am having some problems when I make error studies using the new version (2.23.1.7) of TraceWin.
With the new version, I have a considerably large beam loss compared with the previous version of TraceWin.



As an example, I compared the results using 2.23.1.7 and 2.23.0.5 versions.

TraceWin_1.png (3.29 MiB) Viewed 1203 times

When I ran, I saw a message that I had not seen in the previous version. "Error (All beam lost)"

TraceWin_2.png (1.16 MiB) Viewed 1203 times

The results present a large difference in beam losses between the two cases.

TraceWin_3.png (1.76 MiB) Viewed 1203 times

Could you please confirm me this issue?

Thanks for your help and support,

Bruce

[Didier]

Dear Bruce,

I used these two versions to repeat an error study on a known case and compare.
I can't see anything significantly different between the two versions. So, probably your case is very specific and you'd have to send it to me so that I can repeat the comparison with it and understand this difference, which is not, a priori, normal.

Regards,

Didier

[Bruce Yee]

Dear Didier,

I am not so sure, if you got the lattice files (I sent you yesterday using the private message of this forum).

Thus, I sent you a simple lattice where the error occurs for version 2.23.1.7, but it seems not for older versions.

Lattice_test.zip

(9.99 KiB) Downloaded 245 times

Best regards,

Bruce

[Didier]

Hi Bruce,

I don't know why, but I didn't receive your private message.
Anyway, thanks to your project, I was able to identify the problem with the recent version of TraceWin and fix it. It was a THIN_STEERING adjustment problem.

Regards,

Didier