Elegant users forum

Dear Sir,
In LSRMDLTR section, i am trying different laser position along z0 (bunch length). But i do not see the effect of laser position on current profile (after chicane). any suggestion?
I am curious to know whether the laser position is (0,0,0) bydefault in the code?

truly yours
kumar

Kumar,

The default values for the laser position are indeed (0, 0, 0). These are listed in the LSRMDLTR table.

The LASER_Z0 parameter moves the laser waist position relative to the center of the undulator. I tested it just now and it works as expected.

I suggest looking at the momentum distribution, not the current profile. Unless the effect on the momentum distribution is very large, the current profile may be unchanged.

Also, if LASER_Z0 is small compared to the Rayleigh range, there won't be much change.

--Michael