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Use of axially symmetric electrostatic fields for ion-beam focussing

Technical Report ·
DOI:https://doi.org/10.2172/6306279· OSTI ID:6306279
;
The 1/r electric field obtained between charged coaxial cylindrical electrodes is useful for focusing hollow ion beams in ion-microprobe and ion- implantation applications. The focusing strengths are mass-independent at nonrelativistic energies. Focused-particle densities can be enhanced by using a diverging-converging pair to flatten the dependence of focal length on incoming-beam radius. Transport of 425-keV and 1-MeV protons has been simulated and results are presented.
Research Organization:
Argonne National Lab., IL (USA); Arizona State Univ., Tempe (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6306279
Report Number(s):
CONF-830311-103; ON: DE83010709
Country of Publication:
United States
Language:
English

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Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
BEAM OPTICS
BEAMS
CONFIGURATION
CYLINDRICAL CONFIGURATION
DATA
DIFFERENTIAL EQUATIONS
ELECTRIC FIELDS
ELECTROSTATIC LENSES
ENERGY RANGE
EQUATIONS
EQUATIONS OF MOTION
INFORMATION
ION BEAMS
KEV RANGE
KEV RANGE 100-1000
LENSES
NUCLEON BEAMS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PROTON BEAMS
THEORETICAL DATA