Diagnosis of high‐brightness ion beams produced in point pinch diodes

We have reported on the very high brightness gaseous field ion source that has been developed at Cornell to produce high angular current density H2+ ion beams with low energy widths. Axially oriented H2+ ion beams from single emission sites with angular currents dl/dΩ= 10-20 μa/sr are obtained routinely. The energy width (FWHM) has been measured to be Δe=1.0 ev. H2+ beams with angular currents as high as 70 μa/sr. have been observed, but these higher current beams have a tail spread on their energy distribution curve.We have now extented this source to produce ion species of He+ with angular current densities, dl/dΩ, in the 10-15 μa/sr range and ions beams of Ne+, A+, N2+ and O+ ions with angular currents dl/dΩ of 3-7 μa/sr.Ion beams with these characteristics have have been achieved by operating the gaseous field ion source under the following conditions:1. In an ultrahigh vacuum system at cryogenic temperatures cooled with LHe and heated to obtain an optimum balance of gas concentration at the emitter tip with physisorption on the tip at temperatures that allow good surface transport from a large area near the apex of the tip to the emission site.

Download Full-text

Laser-driven ion sources for high-brightness high-purity ion beams

IEEE Conference Record - Abstracts. 1997 IEEE International Conference on Plasma Science ◽

10.1109/plasma.1997.604364 ◽

2002 ◽

Author(s):

A.B. Filuk ◽

C.H. Ching ◽

M.E. Cuneo ◽

J.E. Bailey ◽

M.A. Bernard ◽

...

Keyword(s):

High Purity ◽

Ion Beams ◽

Ion Sources ◽

High Brightness

Download Full-text

Transport of High Brightness Negative Ion Beams

Springer Series on Atomic, Optical, and Plasma Physics - Development and Applications of Negative Ion Sources ◽

10.1007/978-3-030-28437-4_6 ◽

2019 ◽

pp. 295-307

Author(s):

Vadim Dudnikov

Keyword(s):

Ion Beams ◽

Negative Ion ◽

High Brightness

Download Full-text

Study of energy broadening of high-brightness ion beams from a surface plasma Penning source and its relevance in ion projection lithography

Microelectronic Engineering ◽

10.1016/s0167-9317(96)00179-7 ◽

1997 ◽

Vol 35 (1-4) ◽

pp. 435-438 ◽

Cited By ~ 4

Author(s):

S.K. Guharay ◽

E.A. Sokolovsky ◽

M. Reiser ◽

J. Orloff ◽

J. Melngailis

Keyword(s):

Ion Beams ◽

Surface Plasma ◽

High Brightness ◽

Projection Lithography ◽

Ion Projection Lithography

Download Full-text

LASER-ACCELERATED PROTONS: PERSPECTIVES FOR CONTROL/OPTIMIZATION OF BEAM PROPERTIES

International Journal of Modern Physics B ◽

10.1142/s0217979207042392 ◽

2007 ◽

Vol 21 (03n04) ◽

pp. 590-599 ◽

Cited By ~ 1

Author(s):

M. BORGHESI ◽

C. A. CECCHETTI ◽

L. ROMAGNANI ◽

P. ANTICI ◽

P. AUDEBERT ◽

...

Keyword(s):

Laser Pulses ◽

High Energy ◽

Research Area ◽

Ion Beams ◽

Future Directions ◽

High Brightness ◽

Control Optimization ◽

Current State ◽

Recent Developments ◽

Accelerated Protons

The acceleration of high-energy ion beams (up to several tens of MeV per nucleon) following the interaction of short ( t < 1ps ) and intense (Iλ2 > 1018W cm-2μm2) laser pulses with solid targets has been one of the most active areas of research in the last few years. The exceptional properties of these beams (high brightness and high spectral cutoff, high directionality and laminarity, short burst duration) distinguish them from those of the lower energy ions accelerated in earlier experiments at moderate laser intensities. In view of these properties, laser-driven ion beams can be employed in a number of groundbreaking applications in the scientific, technological and medical areas. This paper reviews the current state-of-the-art, highlights recent developments and indicate future directions of this research area.

Download Full-text