The OPAL Discussion Forum

[wangchuan02513 <wangchuan02513 AT 163.com>]

Hi, All

Just remind other ParallelTTracker user about the changing and switch back of simulation step.

Best regards

Chuan

-------- Forwarding messages --------
From: wangchuan02513 <wangchuan02513 AT 163.com>
Date: 2011-09-02 00:01:11
To: "frederic.le.pimpec" <frederic.le.pimpec AT psi.ch>
Cc: "Adelmann Andreas" <andreas.adelmann AT psi.ch>
Subject: Re:OPAL last email ?

Hi, Frederic,

I just have a quick look at your input file and your plot. You set the time step to 1e-12 s,i.e., 1ps, however, OPAL will change the time step to emit particles within the initial bunch. In your case the time step has been set to 1.3927e-14 s, as you can see in the ctf3-injector-darkcurrent-1.o32108 file, line 197. This new time step will last until all the particles defined by Npart has been emitted, then it will be switch back to the time step you defined in .in file, as you can see in line 10165 in the ctf3-injector-darkcurrent-1.o32108 file. So the time step 666 is not the end of one rf cycle, and you should refer to the time not the time step number as your time base. I think that's the problem.

Best regards

Chuan

At 2011-09-01 22:49:04,"frederic.le.pimpec" <frederic.le.pimpec AT psi.ch> wrote:
>Hello,
>
>did you receive my last email with my plots and attached file and 
>questions ?
>
>Andreas, did you see any difference with a finer time stamp, other than 
>the maximum charge emitted in C.
>
>bests
>Frederic
>
>
>-- 
>---------------------------
>Dr Frederic Le Pimpec
>Paul Scherrer Institut
>WBBA 315
>5232 Villigen
>Switzerland
>http://fel.web.psi.ch/
>Tel : +41 56 310 5130
>FAX : +41 56 310 4488