Double Acceleration of Ions and Application in Biomaterials

Journal Article · Tue Feb 02 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3326325· OSTI ID:21370968

Lorusso, Antonella; Nassisi, Vincenzo ^[1]; Siciliano, Maria Vittoria ^[1]; Velardi, Luciano ^[1]

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1. Department of Physics, University of Salento, Laboratorio di Elettronica Applicata e Strumentazione, LEAS I.N.F.N. sect. of Lecce, C.P. 193, Via per Arnesano, 73100 Lecce (Italy)

Ions of different elements were generated by laser-induced-plasma and accelerated by a two adjacent cavities. Therefore, the ions undergo a double acceleration imparting a maximum ion energy of 160 keV per charge state. We analyzed the extracted charge from a Cu target as a function of the accelerating voltage. At 60 kV of total accelerating voltage, the maximum current peak was of 5.3 mA. The ion flux resulted of 3.4x10{sup 11} ions/cm{sup 2}. The normalized emittance measured by pepper pot method at 60 kV was of 0.22 pi mm mrad. By means of this machine, biomedical materials as UHMWPE were implanted with carbon and titanium ions. At a total ion flux of 2x10{sup 15} ions/cm{sup 2} the polyethylene surface increased its micro hardness of about 3-hold measured by the scratch test. Considering the ion emission cone dimension, we estimated a total extracted charge per pulse of 200 nC.

• OSTI ID: 21370968
• Journal Information: AIP Conference Proceedings, Vol. 1209, Issue 1; Conference: 2. international conference on ultra-intense laser interaction science, Frascati (Italy), 24-29 May 2009; Other Information: DOI: 10.1063/1.3326325; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABLATION
ACCELERATION
BIOLOGICAL MATERIALS
CARBON IONS
CHARGE STATES
ELECTRIC POTENTIAL
ION BEAMS
ION EMISSION
ION IMPLANTATION
IRRADIATION
KEV RANGE
LASER-PRODUCED PLASMA
MICROHARDNESS
PHYSICAL RADIATION EFFECTS
POLYETHYLENES
SURFACES
TITANIUM IONS
BEAMS
CHARGED PARTICLES
EMISSION
ENERGY RANGE
HARDNESS
IONS
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PLASMA
POLYMERS
POLYOLEFINS
RADIATION EFFECTS