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Re: Field map implementation
Posted: Fri 30 Apr 2021 13:16
by Vyacheslav
Dear Didier,
does any 'synoptic' button exist to plot arrangement of field maps in (x,y) plot?
It is needed in order to control location accuracy of field maps in space.
Re: Field map implementation
Posted: Sat 1 May 2021 12:49
by Didier
Dear Vyacheslav,*
No, and the only thing I could imagine would be to draw and orient the field_map in the synoptic graph using the data from the SUPPORPOSE_MAP and SUPPERPOSE_MAP_OUT commands. And of course that wouldn't help you.
Regards,
Didier
Re: Field map implementation
Posted: Mon 7 Jun 2021 09:57
by Vyacheslav
Dear Didier,
why is zero electric RF field on field map viewer?
- map.jpg (57.34 KiB) Viewed 3894 times
Data in the field files are in MV/m.
On more addition about notation on the plot: Electrique->Electric.
Re: Field map implementation
Posted: Mon 7 Jun 2021 13:31
by Didier
Dear Vyacheslav,
It's because you set 'ke' parameter to '0'
And thank you, I have corrected the spelling error you noted (next version)
Regards,
Didier
- field_e.png (109.3 KiB) Viewed 3892 times
Re: Field map implementation
Posted: Wed 9 Jun 2021 17:24
by Vyacheslav
Am I right that Ez(x,y,z,t)=Ez(x,y,z)*cos(omega*t-kz*z), where Ez is the field map data value is a correct expression for the right-side of z-motion equation?
Re: Field map implementation
Posted: Wed 9 Jun 2021 17:27
by Didier
What is 'kz' ?
Didier
Re: Field map implementation
Posted: Wed 9 Jun 2021 18:11
by Vyacheslav
kz=2*pi/beta*lambda - longitudinal propagation factor (wave number)
Re: Field map implementation
Posted: Thu 10 Jun 2021 09:14
by Didier
Ok, so, I agree with your expression
Regards,
Didier
Re: Field map implementation
Posted: Thu 10 Jun 2021 12:16
by Vyacheslav
Dear Didier,
why does Linac Energy differ from Beam one?
- energy.jpg (67.47 KiB) Viewed 3884 times
What does Linac Energy mean? Is it energy of the synchronous particle?
Is the beam energy is the mean value on the all particle energies?
How can I change synchronous particle phase? Just using SET_SYNC_PHASE before FIELD_MAP and put the third parameter equals to the desired synchronous particle phase or by means of SET_BEAM_E0_P0?
One more question. How do I plot/visualize graphs of the existing and calculated project after shutdown on the TraceWin and the following restart of it without recalculation/treatment of the project?
Re: Field map implementation
Posted: Thu 10 Jun 2021 13:46
by Didier
Dear Vyacheslav,
Linac: corresponds to perfect particle transpor in perfect linac
Beam : is real beam including average beam centroid and linac errors
So, your plot, it's envelop result of a beam where you set an phase centroid errors, it's why beam curve is not simillar to "linac" one
To change synchronous phase the first way is to change by hand the RF phase or lets code do it itseft, using SET_SYNC_PHASE
And your last question: perform 2 runs with or without matching options.
Regards,
Didier