bd-palaver AT lists.psi.ch

Subject: Bd-palaver mailing list

List archive

[[Bd-palaver] ] Presentation MSc N. Sauerwein

From: "Adelmann Andreas (PSI)" <andreas.adelmann AT psi.ch>
To: PSI.LSM_PALAVER <LSM_PALAVER AT psi.ch>, "bd-palaver AT lists.psi.ch" <bd-palaver AT lists.psi.ch>, "Hauri Christoph Peter (PSI)" <christoph.hauri AT psi.ch>, "Dax Andreas Josef (PSI)" <andreas.dax AT psi.ch>, "Ischebeck Rasmus (PSI)" <rasmus.ischebeck AT psi.ch>, "Hermann Benedikt (PSI)" <Benedikt.Hermann AT psi.ch>, "Frey Matthias (PSI)" <matthias.frey AT psi.ch>, "Rizzoglio Valeria (PSI)" <valeria.rizzoglio AT psi.ch>, "Kranjcevic Marija" <marija.kranjcevic AT inf.ethz.ch>, "Ganz Philippe" <gp AT student.ethz.ch>, "Deng Yunpei (PSI)" <Yunpei.Deng AT psi.ch>, "Huppert Martin (PSI)" <martin.huppert AT psi.ch>, "Erny Christian (PSI)" <christian.erny AT psi.ch>, "Frei Franziska (PSI)" <franziska.frei AT psi.ch>, "Kiselev Daniela (PSI)" <daniela.kiselev AT psi.ch>, "Kirch Klaus Stefan (PSI)" <klaus.kirch AT psi.ch>, Dissertori Günther <disserto AT ethz.ch>
Cc: "Sauerwein Nick" <nicksa AT student.ethz.ch>, "Adelmann Andreas (PSI)" <andreas.adelmann AT psi.ch>
Subject: [[Bd-palaver] ] Presentation MSc N. Sauerwein
Date: Mon, 19 Feb 2018 05:50:13 +0000
Accept-language: en-US, de-CH

Beam Characterization of Low Energy Electrons from a Laser Wakefield Accelerator

N. Sauerwein

22.2.2018, 15.00 WBBA/008

Abstract: The characteristics of low energy electrons accelerated by a laser wakefield are studied. A shock-front in the gas jet flow is used for particle injection. The work includes understanding the acceleration process, setting up the experiment and measuring properties like the charge, divergence and energy of the accelerated electrons. The experiment includes diagnostics for the laser, the electrons and the gas jet. In order to make high resolution energy distribution measurements with relative errors ∆E/E of below 10%, a tunable electron spectrometer has been set up. A tunable permanent magnet quadrupole triplet allowed for setting of the stigmatic focus in a range from 5 keV to 5 MeV. For the experiment, a browser based interface (pyPECS) was developed. With a Faraday cup, electron acceleration to energies of the order of 60 keV was verified. With acceleration length being 0.3 mm, an accelerating gradient above 200 MeV m−1 was achieved. The divergences of the accelerated bunches were of the order of 20 mrad.

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 or HPK G 28 +41 44 632 75 22
============================================
The more exotic, the more abstract the knowledge,
the more profound will be its consequences.
Leon Lederman
============================================

[[Bd-palaver] ] Presentation MSc N. Sauerwein, Adelmann Andreas (PSI), 02/19/2018