Skip to Content.
Sympa Menu

opal - Re: [Opal] 3D field maps

opal AT lists.psi.ch

Subject: The OPAL Discussion Forum

List archive

Re: [Opal] 3D field maps


Chronological Thread 
  • From: Nicole Neveu <nneveu AT hawk.iit.edu>
  • To: "Adelmann Andreas (PSI)" <andreas.adelmann AT psi.ch>
  • Cc: opal <opal AT lists.psi.ch>
  • Subject: Re: [Opal] 3D field maps
  • Date: Thu, 23 Jun 2016 09:40:39 -0500

Hi Adreas,

I am running ​version 1.4.0. I moved my input file and field files to a folder named kicker on our shared dropbox: https://www.dropbox.com/sh/k1f92cmesfjl732/AAA8eH6gmmUdowjMxiUrp55Ja?dl=0

The beam line consists of a gun, solenoids, 6 cavity linac, 3 quads, and the kicker.

Thanks!

Nicole

On Thu, Jun 23, 2016 at 12:37 AM, Adelmann Andreas (PSI) <andreas.adelmann AT psi.ch> wrote:
Dear Nicole I can not see an obvious error, please send me the complete input 
so I can run the problem. What version of OPAL are you using?

Yes there is a lot going on with OPAL-T3D but this is not related to your problem.

Cheers Andreas 
------
Dr. sc. math. Andreas (Andy) Adelmann
Staff Scientist
Paul Scherrer Institut WBBA/219 CH-5232 Villigen PSI
Phone Office: xx41 56 310 42 33 Fax: xx41 56 310 31 91
Phone Home: xx41 62 891 91 44
-------------------------------------------------------
Friday: ETH CAB F37  +41 44 632 75 22
============================================
The more exotic, the more abstract the knowledge, 
the more profound will be its consequences.
Leon Lederman 
============================================

On 23 Jun 2016, at 03:22, Nicole Neveu <nneveu AT hawk.iit.edu> wrote:

​Hi OPAL experts,

I'm want to model a weak TEM kicker in OPAL (2 degrees). The kicker was designed in CST, and a 3D field file was exported. I'm trying to define the element in OPAL as a DC RFcavity (3D EM field map at a very low frequency). I'm using the definition of a DC gun on pg. 101 of the manual as my guideline.

Also, I know there is a lot going on with OPAL-T3D (saw your IPAC paper). Not sure if this is related or not since I'm not using a dipole element?

Here's the error I get:

*** User error detected by function "ParallelTTracker::dumpStats()"

***in line 275 of file "kicker3Dmap.in" at end of statement:

RUN,METHOD="PARALLEL-T",BEAM=BEAM1,FIELDSOLVER=FS_SC,DISTRIBUTION=DIST;

there seems to be something wrong with the position of the bunch!

What does this mean?
For reference, here are the element definitions:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Gun example in manual:

gun: RFCavity, L=0.018, VOLT=-131/(1.052*2.658),

FMAPFN="1T3.T7", ELEMEDGE=0.00,

TYPE="STANDING", FREQ=1.0e-6;


My kicker:

MYKICK: RFCavity, L = 0.6, VOLT = 35.0,  

FMAPFN = "../kicker3D.txt", ELEMEDGE = 15.736,

TYPE = "STANDING", FREQ = 1.0e-6;

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Thanks,

Nicole Neveu

Argonne Wakefield Accelerator

 





Archive powered by MHonArc 2.6.19.

Top of Page