Spatial Profile and Beam Composition Measurements of the University of Wisconsin Inertial Electrostatic Confinement Laboratory Ion Guns

Jasica, Matthew J.; Kulcinski, Gerald L.; Santarius, John F.

doi:10.1080/15361055.2019.1693204

Spatial Profile and Beam Composition Measurements of the University of Wisconsin Inertial Electrostatic Confinement Laboratory Ion Guns

Journal Article · Wed Feb 19 00:00:00 EST 2020 · Fusion Science and Technology

DOI:https://doi.org/10.1080/15361055.2019.1693204· OSTI ID:1617310

^[1]; Kulcinski, Gerald L. ^[2]; Santarius, John F. ^[2]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of Wisconsin, Madison, WI (United States)
Univ. of Wisconsin, Madison, WI (United States)

A custom designed and manufactured set of ion guns has been in use at the University of Wisconsin Inertial Electrostatic Confinement Laboratory for both beam fusion experiments and materials implantation experiments. For the first time, direct measurements have been made on the spatial profiles and the mass compositions of He and D ion beams produced by these guns. The results validate assumptions about the circular Gaussian spatial profiles for both He and D ion beams. Mass composition measurements of the He beam identified a pressure-dependent minimum impurity content of 15% N⁺. The D beam contained relative molecular ion fractions of 58% D₃⁺, 32% D₂⁺, and 10% D⁺ with impurities of 15% to 20% D₂O⁺. Finally, a new experimental platform, the Ion Beam and Source Analyzer was developed to perform these experiments on the ion guns used to irradiate candidate fusion materials.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000; NA0003525

OSTI ID:: 1617310

Report Number(s):: SAND--2019-14798J; 682388

Journal Information:: Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 2 Vol. 76; ISSN 1536-1055

Publisher:: American Nuclear SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Spatial Profile and Beam Composition Measurements of the University of Wisconsin Inertial Electrostatic Confinement Laboratory Ion Guns

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