opal AT lists.psi.ch

Subject: The OPAL Discussion Forum

List archive

Re: [Opal] RMS_BeamSize

From: "Dr. Simon Friederich" <s.friederich AT uni-mainz.de>
To: zahra fathi <zahrafathi1371 AT gmail.com>
Cc: <opal AT lists.psi.ch>
Subject: Re: [Opal] RMS_BeamSize
Date: Sat, 16 Oct 2021 14:16:42 +0200
Authentication-results: mc4.ethz.ch; iprev=pass (mailgate-2.zdv.net) smtp.remote-ip=134.93.178.242; spf=pass smtp.mailfrom=uni-mainz.de; dkim=pass header.d=uni-mainz.de header.s=20190702 header.a=rsa-sha256; dmarc=pass header.from=uni-mainz.de
Ironport-data: A9a23:vmzS8KIn1fJp1T17FE+RnpQlxSXFcZb7ZxGr2PjKsXjdYENS0WEPm 2BMUGuEOa3eMDagKN51at7go0gE7ZPcyNFiQVNorCE8RH9jl5HIVI+TRqvS04J+DSFhoGZPt Zh2hgzodZhsJpPkS5PE3oHJ9RGQ74nRLlbHILOCan0ZqTNMEn970Es7wrBh2OaEvPDga++zk YKvyyHgEAfNNw5cagr4PIra9XuDFNyr0N8plgRWicJj5TcypFFMZH4rHpxdGlOjKmVi8kxWc M6YpF2x1juxEx7AkbpJmJ6jGqEBaua60QRjFhO6VoD66iWuqBDe3Y4QLsdBeRt1iA+wntlI8 ednmqXpewYQa/ikdOQ1C3G0EglzLfQfoeaCJGPmvonJkgvUf2Wq/vNvSWQ/PIsKvMpaaY1M3 fIUdGpfMkvZ3LDmy763GLc02JZyJZGwbtIVtH8ywzyDB6QsGcCeK0nJzYYwMDMYncFAB/fTa 8cxdDxuKRHJYhtdfFsaYH47tL7y3yCvI2IE8Dp5o4IV3GTJnCNx2oLgG/GIXO6wWNRenH+X8 zeuE2PRR0ty2Mak4T2d+3aEgu7UgTi9QJkTUra4ntZ4iV2Jz2IaFB0XDADk+NG2j0e/X5RUL El8x8Y1haUirRXyF5z4RES35STZ+AwQRZxNFex/7QiMzLiS7wvx6nU4cwOtoecO7KceLQHGH HfQ9z81LVSDaIGodE8=
Ironport-hdrordr: A9a23:9qiy169IYtYgXjcXQY5uk+DUI+orL9Y04lQ7vn2ZkiYlEPBw+P rDoB12726QtN9uYh4dcKG7Scq9qBrnnPYfi+Qs1NGZLW3bUUSTXedfBODZowEIdReeygZsv5 0PT0EHMqyWMWRH
Organization: Institut für Kernphysik Mainz

Dear Zahra,

You are using OPAL-cycle, right? I'm sorry, I've only used OPAL-t so far.

If the results from the .stat file are different, maybe OPAL-cycle allows to get a 6D bunch distribution from the .h5-file from which you can extract the maximum beam dimensions?
In OPAL-t I can get everything I want from it (and as far as I understood the .stat-file results are computed from the distributions which are saved in the .h5 file).

Best regards
Simon

Dr. Simon Friederich
Helmholtz Institut Mainz 
Johannes Gutenberg-Universität Mainz
Staudingerweg 18
D 55128 Mainz

Postanschrift
Insitut für Kernphysik
Kollaboration B
Johannes Gutenberg-Universität Mainz
Johann-Joachim-Becher-Weg 45
D 55128 Mainz

Tel.: +49 (0)6131 39-23160
E-Mail: s.friederich AT uni-mainz.de

Am 16.10.2021 um 08:21 schrieb zahra fathi:

Dear Dr. Friederich,

thank you for your reply. The radius of the Cyclotron which I simulated is about 0.45m. I drew max_x,_y and_s vs Energy (it is in attachment), it seems max_x,_y and_s present the location of the beam in the Global coordinate of the cyclotron (not the total beam size with respect to the reference particle). It would be appreciated if you could help me in this way.

Thank you for your time

Best regards

Zahra

On Thu, Oct 14, 2021 at 3:13 PM Dr. Simon Friederich <s.friederich AT uni-mainz.de> wrote:

Dear Zahra,

Concerning the total beam size:
The max_x, max_y and max_s values from the .stat file inherit the total
beam size.

Best regards

Simon

Dr. Simon Friederich
Helmholtz Institut Mainz
Johannes Gutenberg-Universität Mainz
Staudingerweg 18
D 55128 Mainz

Postanschrift
Insitut für Kernphysik
Kollaboration B
Johannes Gutenberg-Universität Mainz
Johann-Joachim-Becher-Weg 45
D 55128 Mainz

Tel.: +49 (0)6131 39-23160
E-Mail: s.friederich AT uni-mainz.de

Am 14.10.2021 um 13:23 schrieb Zahra:
> Hi OPAL group!
> I am new to OPAL. I simulated the beam of a 11MeV Cyclotron using OPAL2.4.0. I
> want to study beam characteristics like beam size. I want to reach the bunch
> distribution. Is there a way to obtain total beam size (not its rms)?
> As we know, rms_x,_y and_s are exist in .stat file, which I drew rms_x,_y
> and_s vs Energy. It is in this link[https://postimg.cc/KKZP7rbD]. Is this
> order of rms_BeamSize acceptable? And Is there a person who knows, what
> happened on beam in 4-10 MeV which make rms_BeamSize (x and y) grow?
> Any help is appreciated

[Opal] RMS_BeamSize, Zahra, 10/14/2021
- Re: [Opal] RMS_BeamSize, Dr. Simon Friederich, 10/14/2021
  - Re: [Opal] RMS_BeamSize, zahra fathi, 10/16/2021
    - Re: [Opal] RMS_BeamSize, Dr. Simon Friederich, 10/16/2021
      - Re: [Opal] RMS_BeamSize, zahra fathi, 10/17/2021
- Re: [Opal] RMS_BeamSize, Chris Rogers, 10/16/2021