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Title: Optimization of laser-target parameters for the production of stable lithium beam

Journal Article · · Review of Scientific Instruments
DOI: https://doi.org/10.1063/1.5128547 · OSTI ID:1605483

A laser ion source coupled with a radio frequency quadrupole linac accelerator is being proposed as a suitable system for the production of a low energy, high-current stable lithium beam. In order to maximize the lithium yield, plasmas generated by laser ablation of different materials based on lithium (Li, LiOH, and LiNbO3) have been characterized by using a Faraday cup and an electrostatic ion analyzer in the time of flight configuration. A wide range of laser power density has been investigated (109–1012 W/cm2) using two Nd:YAG lasers operating at different wavelengths (1064 nm and 532 nm), pulse durations (6 ns and 17 ns), and maximum energies (1400 mJ and 210 mJ). This paper outlines the pros and cons of the investigated materials by studying how the ion energy, yields, and charge state distributions are modified when the laser power density is changed. Considerable attention has been paid to the higher charge states of oxygen, which may occur with the same mass-to-charge ratio of Li3+. The analysis has evidenced that LiNbO3 represents a valid target since it allows minimizing the O6+/7Li3+ ratio down to 2.5% by using a laser power density of 1.8 × 1010 W/cm2. For such a condition, a Li3+ current of 1.4 mA/cm2 has been measured.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-98CH10886
OSTI ID:
1605483
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Vol. 91 Journal Issue: 3; ISSN 0034-6748
Publisher:
American Institute of PhysicsCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (12)

Neutron generator based on intense lithium beam driver journal February 2020
Proton beam production by a laser ion source with hydride target journal February 2016
Gaussian energy distribution of fast ions emitted by laser-produced plasmas journal May 2013
Application of Li ion beam obtained by the cesium sputtering source for RBS analysis of optical layers journal January 2015
Direct plasma injection scheme in accelerators (invited) journal January 2008
Corpuscular diagnostics and processing methods applied in investigations of laser-produced plasma as a source of highly ionized ions journal September 1996
Direct plasma injection scheme with various ion beams journal October 2010
Time-of-flight spectra for mapping of charge density of ions produced by laser journal October 2013
Laser ion source for low-charge heavy ion beams
  • Okamura, Masahiro; Pikin, Alexander; Zajic, Vladimir
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 606, Issue 1-2, p. 94-96 https://doi.org/10.1016/j.nima.2009.03.232
journal July 2009
Li–Si thin films for battery applications produced by ion-beam co-sputtering journal January 2015
Laser ion source with solenoid field journal November 2014
Features of ion generation using Nd-glass laser journal November 2006