Non-linear electrostatic waves in pair-ion plasmas - National Centre ...

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A fullerene is any molecule composed entirely of carbon, in the form of ahollow sphere, ellipsoid, or tube. Spherical fullerenes are also calledbuckyballs, and cylindrical ones are called carbon nano-tubes or buckytubes.The discovery of fullerenes greatly expanded the number of known carbonallotropes, which until recently were limited to graphite, diamond, and amorphous8carbon such as soot and charcoal.
Production of pair-ion (fullerene) PlasmasChamberLength=260 cm,diameter=15.7 cm,B=0.3 T (solenoidcoils), gas pressure=2x10 -4 PaE e=0 - 150 eV(electron beamenergy)The production process of pair-ion plasma is divided into three regions:Region I: Consists of electron beam region and fullerene ion production region.+Positive ions C 60 are produced by electron impact ionization and low energyelectrons are produced in connection with this process.−Negative ions C 60 are produced by attachment of these low energy electronsproduced during the charging process of positive ions.C 260− + −+ e → C60+ e,+−242( C60)= 25×10 cm− −C60 + e → C ,−−24260σ ( C60)= 100 × 10 cmσat 100 eVat 5eV9
Page 1 and 2: Nonlinear electrostatic structures
Page 3 and 4: 1. Soliton‣ Soliton is a nonlinea
Page 5 and 6: Soliton in Plasmas (contd.)Linear w
Page 7: 2. Brief Introduction of pair-ion P
Page 11 and 12: Electrostatic Waves in pair-ion Pla
Page 13 and 14: Nonlinear Electrostatic Waves in Pa
Page 15 and 16: Nonlinear Electrostatic Waves in pa
Page 17 and 18: Nonlinear Electrostatic Waves in pa
Page 19 and 20: Nonlinear Electrostatic Waves in Pa
Page 21 and 22: Double Layer in Plasmas5. Double La
Page 23 and 24: Double layer in Pair-ion Plasmas (c
Page 25 and 26: Double layer in Pair-ion Plasmas (c
Page 27 and 28: 6. Dissipative shocks and solitons
Page 29 and 30: Dissipative shocks and solitons in
Page 31 and 32: Dissipative shocks and solitons in
Page 33 and 34: 7. Conclusion• Linear and nonline
Page 35: Thank You35

Non-linear electrostatic waves in pair-ion plasmas - National Centre ...

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