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Edge of dipole application in envelope mode

Posted: Fri 5 Feb 2021 06:09
by shliu
Hi Didier,

According to my understanding, the edge of a dipole in envelop mode could be regarded as a kicker. My .dat file is as following:

EDGE 0 800 110 0 0 50 0
BEND 45 800 0 50 0
EDGE 45 800 110 0 0 50 0

The transfer matrix of the third element (the edge of the dipole) is
edge_matrix.png
edge_matrix.png (4.02 KiB) Viewed 3647 times
which means that it's defocusing in H plane and focusing in V plane. The question is, when I check the x' and y' envelop, there's only kick application in x', but without y':
edge_kick.png
edge_kick.png (81.62 KiB) Viewed 3647 times
I tried the dipole field map and found the kick effect is obvious in both planes:
edge_kick_field.png
edge_kick_field.png (81.54 KiB) Viewed 3647 times
kinds,
shliu

Re: Edge of dipole application in envelope mode

Posted: Fri 5 Feb 2021 11:41
by Didier
Dear shliu,

On my side I see kick in both planes, but I didn't have your project configuration. Please send me your project files (*.ini, *dat), otherwise complicated for me to check your case.

Regards,

Didier

Re: Edge of dipole application in envelope mode

Posted: Sun 7 Feb 2021 02:19
by shliu
Hi Didier,

Attached the .ini file.

There's an error message when I tried to attach the .dat file, so I put the content here:

EDGE 0 800 110 0 0 50 0
BEND 45 800 0 50 0
EDGE 45 800 110 0 0 50 0
end

Re: Edge of dipole application in envelope mode

Posted: Mon 8 Feb 2021 10:16
by Didier
Dear shliu,

I fixed the problem in forum about the 'dat' file.
So, using your project, I find for 45° edge, the following behavoir and I found small vertical kick. And if I incease angle to 60° vertical kick become obvious.
45deg.png
45deg.png (10.56 KiB) Viewed 3623 times
60deg.png
60deg.png (10.43 KiB) Viewed 3623 times
Regards,

Didier

Re: Edge of dipole application in envelope mode

Posted: Mon 8 Feb 2021 11:06
by shliu
I got it. Thank you!