KSI silently ignored for solenoids with L>0

[rdemaria]

SOLO: SOLENOID, L = 2., KSI = 0.001;

succeds but KSI is ignored

[HelmutCERN]

Dear Riccardo

This is as described in http://madx.web.cern.ch/madx/madX/doc/usrguide/Introduction/solenoid.html

Thick specify KS Thin specify both KS and KSI

Cheers, Helmut

On 19 Oct, 2022, at 12:04, Riccardo De Maria @.***> wrote:

SOLO: SOLENOID, L = 2., KSI = 0.001;

[rdemaria]

Madx is not preventing invalid input. Perhaps we should add that the ksi is not used for l>0 and issue a warning. Similarly it is not clear whether ks is needed for l=0. What about using Lrad like in orbit correctors instead of ksi?

[HelmutCERN]

Specifying thin solenoids with KSI and LRAD rather than KS and KSI would in fact be more similar to what’s used for example for correctors. If we agree on that I will be happy to update MAKETHIN to do this.

For backward compatibility KS, KSI should still be allowed

On 19 Oct, 2022, at 12:47, Riccardo De Maria @.***> wrote:

Madx is not preventing invalid input. Perhaps we should add that the ksi is not used for l>0 and issue a warning. Similarly it is not clear whether ks is needed for l=0. What about using Lrad like in orbit correctors instead of ksi?

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[rdemaria]

I agree with your proposal!

[HelmutCERN]

Addressed by https://github.com/MethodicalAcceleratorDesign/MAD-X/pull/1179