Search found 23 matches

by Jafarinia
18 Nov 2020, 09:40
Forum: Linac Tracking
Topic: Collimator type
Replies: 1
Views: 7854

Collimator type

Hi Michael,

I was wondering why the collimator element in ELEGANT doesn't depend on the type of the material (Copper, Tungsten, ...) and just depends on the length.

Thanks,
Farzad
by Jafarinia
05 Aug 2020, 10:07
Forum: Linac Tracking
Topic: Sextupole affects the beta function after an offset quad
Replies: 4
Views: 9506

Re: Sextupole affects the beta function after an offset quad

Hi Michael,

OK... I will try it with CCBEND.

Thanks,
Farzad
by Jafarinia
05 Aug 2020, 04:39
Forum: Linac Tracking
Topic: Sextupole affects the beta function after an offset quad
Replies: 4
Views: 9506

Re: Sextupole affects the beta function after an offset quad

Hi Michael,

I was wondering why the center element doesn't bring the beam back on the center after quad?

Thanks,
Farzad
by Jafarinia
03 Aug 2020, 07:55
Forum: Linac Tracking
Topic: Sextupole affects the beta function after an offset quad
Replies: 4
Views: 9506

Sextupole affects the beta function after an offset quad

Hi Michael, I designed a beam line with offset quads as bending magnets and I want to use sextuples to reduce emittance growth. I use center element to bring back the beam on the center after each quad, but sextupoles after the offset quads change the beta functions. It seems that to calculate the b...
by Jafarinia
30 Jul 2020, 10:22
Forum: Linac Tracking
Topic: CSR effect for an Offset quadrupole
Replies: 1
Views: 7791

CSR effect for an Offset quadrupole

Hi Michael,

Is there any way in ELEGANT to simulate CSR for an offset quad as a bending magnet?

Thanks,
Farzad
by Jafarinia
16 Jul 2020, 05:40
Forum: Optimization and Matching
Topic: Twiss Matching
Replies: 1
Views: 8000

Twiss Matching

Hi Michael, I have been trying to match 6 parameters at the end of the beam line (betax, betay, alphax, alphay, etax and etaxp). I am using 6 quadrupoles . I tried many times with different starting values (random number generator for initial k value for each quad) but ELEGANT was not able to find t...
by Jafarinia
23 Jun 2020, 10:05
Forum: Linac Tracking
Topic: Beam with higher order dispersion
Replies: 1
Views: 7604

Beam with higher order dispersion

Hi Michael,

How can I make a beam with higher order dispersion etax2, etax3 included?

Thanks,
Farzad
by Jafarinia
01 Apr 2020, 09:18
Forum: Optimization and Matching
Topic: Sextupoles chromatic correction
Replies: 1
Views: 7861

Sextupoles chromatic correction

Hi Michael, I am trying to use sextupoles for reducing emittance growth in the beam line after the dipole. Since there is dispersion (in x), I expect that sextupoles just affect the emittance growth in x. But both emittances decrease using these sextupoles while there is dispersion just in x not in ...
by Jafarinia
12 Jul 2019, 03:51
Forum: Optimization and Matching
Topic: Energy distribution
Replies: 3
Views: 7700

Re: Energy distribution

Dear Micheal,

My question is a general question. For example, How can I get a bunch with linear particle distribution in X but a Gaussian energy distribution also in X?
(or any other distribution which is different from the particle distribution)

Farzad
by Jafarinia
11 Jul 2019, 09:55
Forum: Optimization and Matching
Topic: Energy distribution
Replies: 3
Views: 7700

Energy distribution

Hi Michael,

Is it possible to set an energy distribution which is different from particle distribution in ELEGANT?
In &bunched_beam you can just set particle distribution and ELEGANT takes the same distribution for the energy.


Thanks,
Farzad