Comment on the Possibility of Excited Recoil Energy Distributions in the Products of Complex-Forming Reactions with No Exit Barrier

1998 ◽  
Vol 102 (19) ◽  
pp. 3455-3456
Author(s):  
L. Bonnet ◽  
J. C. Rayez
Keyword(s):  
Recoil Energy ◽  
Energy Distributions ◽  
Exit Barrier

scholarly journals Development of ion recoil energy distributions in the Coulomb explosion of argon clusters resolved by charge-state selective ion energy spectroscopy

2021 ◽  
Author(s):  
D. Komar ◽  
L. Kazak ◽  
K-H. Meiwes-Broer ◽  
J. Tiggesbäumker
Keyword(s):  
High Energy ◽  
Coulomb Explosion ◽  
Energy Spectra ◽  
Recoil Energy ◽  
Energy Distributions ◽  
Ion Energy ◽  
Argon Clusters ◽  
High Energy Tail ◽  
Charge States ◽  
The Individual

AbstractThe laser intensity dependence of the recoil energies from the Coulomb explosion of small argon clusters has been investigated by resolving the contributions of the individual charge states to the ion recoil energy spectra. Between $$10^{14}$$ 10 14 and $$10^{15}$$ 10 15 W/cm$$^2$$ 2 , the high-energy tail of the ion energy spectra changes its shape and develops into the well-known knee feature, which results from the cluster size distribution, laser focal averaging, and ionization saturation. Resolving the contributions of the different charge states to the recoil energies, the experimental data reveal that the basic assumption of an exploding homogeneously charged sphere cannot be maintained in general. In fact, the energy spectra of the high-q show distinct gaps in the yields at low kinetic energies, which hints at more complex radial ion charge distributions developing during the laser pulse impact.

Effect of surface semichannels in fast recoil energy distributions

1980 ◽  
Vol 170 (1-3) ◽  
pp. 157-159 ◽  
Author(s):  
L.L. Balashova ◽  
A.M. Borisov ◽  
A.I. Dodonov ◽  
E.S. Mashkova ◽  
V.A. Molchanov
Keyword(s):  
Recoil Energy ◽  
Energy Distributions ◽  
Effect Of Surface

Scattering of Low-Energy (5-12 eV) C2D4•+ Ions from Room-Temperature Carbon Surfaces

2008 ◽  
Vol 73 (6-7) ◽  
pp. 755-770 ◽  
Author(s):  
Andriy Pysanenko ◽  
Ján Žabka ◽  
Zdeněk Herman
Keyword(s):  
Survival Probability ◽  
Room Temperature ◽  
Incident Angle ◽  
Pyrolytic Graphite ◽  
Carbon Surface ◽  
Translational Energy ◽  
Energy Distributions ◽  
Surface Mass ◽  
Fragment Ions ◽  
Product Ions

The scattering of the hydrocarbon radical cation C2D4•+ from room-temperature carbon (highly oriented pyrolytic graphite, HOPG) surface was investigated at low incident energies of 6-12 eV. Mass spectra, angular and translational energy distributions of product ions were measured. From these data, information on processes at surfaces, absolute ion survival probability, and kinematics of the collision was obtained. The projectile ion showed both inelastic, dissociative and reactive scattering, namely the occurrence of H-atom transfer reaction with hydrocarbons present on the room-temperature carbon surface. The absolute survival probability of the ions for the incident angle of 30° (with respect to the surface) decreased from about 1.0% (16 eV) towards zero at incident energies below 10 eV. Estimation of the effective surface mass involved in the collision process led to m(S)eff of about 57 a.m.u. for inelastic non-dissociative collisions of C2D4•+ and of about 115 a.m.u. for fragment ions (C2D3+, C2D2•+) and ions formed in reactive surface collisions (C2D4H+, C2D2H+, contributions to C2D3+ and C2D2•+). This suggested a rather complex interaction between the projectile ion and the hydrocarbon-covered surface during the collision.

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