New High-Resolution Electron Scattering Capability

Technical Report · Mon Oct 01 04:00:00 EDT 2018

DOI:https://doi.org/10.2172/1481604· OSTI ID:1481604

Frank, Jonathan H. ^[1]; Chandler, David W. ^[1]; Fournier, Martin P. M. ^[1]; Jaska, Mark J. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

This project explored a new capability for studying collisions of electrons and molecules with unprecedented accuracy by combining high electron-energy resolution with velocity mapped imaging of electrons. Low-energy electrons were produced within a supersonic beam by photoionization of metastable krypton using a dye laser to generate electrons with tunable kinetic energy and a narrow energy spread. A new configuration for electron imaging optics was developed to enable scattering of electrons in a zero-field environment with subsequent rapidly pulsed velocity mapped imaging of the electrons. Development of this new capability will significantly enhance DOE/NNSA's ability to perform basic research on processes relevant to plasmas in atmospheric re-entry and neutron generation for weapons systems and provide fundamental understanding of electron-driven chemistry important to solar energy conversion.

• Research Organization: Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1481604
• Report Number(s): SAND--2018-11421; 669451
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS