Study of the Reaction<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Bi</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>209</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>+<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Xe</mml:mi></mml:mrow><mml:mprescripts /><mml

Schröder, W. U.; Birkelund, J.R.; Huizenga, J.R.; Wolf, K.L.; Unik, J.P.; Viola, V. E.

doi:10.1103/physrevlett.36.514

Cited by 71 publications

(24 citation statements)

References 12 publications

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“…6 the correlation between energy loss AE and variance a2 of the element distribution as calculated with the relaxation times (3.1) and the diffusion coefficients of Table 2. As is evident from the comparison with the data [5,6] the analysis consistently reproduces the correlation at different incident energies. The consideration of fragment deformation is essential for the interpretation of the experiment.…”

Section: Applicationssupporting

confidence: 63%

“…The experimental trend [6] to obtain a larger cross section below the interaction barrier for spheres (cf, arrows in Fig. 6) at the lower incident energy is reproduced with the same eo and %.…”

Section: Applicationssupporting

confidence: 56%

“…As expected from the theoretical expressions for the transport coefficients on excitation energy [4] the diffusion coefficients increase with bombarding energy. However, the increase of D,, with energy needed to optimize the fit to the data [5,6] is stronger than the forth root of the excitation energy in theoretical predictions [4]. In view of the sensitivity of the results to a detailed fit in the peak region (and thus to the shape of the formfactor as well as to the precise value of lm,~) this discrepancy should not be overemphasized.…”

Section: Applicationsmentioning

confidence: 81%

“…[2]. The results for the deflection functions are shown in [5] and Schr6der et al [6]. Whereas the relaxation times are taken from (3.1), the mass transport coefficients are fitted to the data…”

Section: Applicationsmentioning

confidence: 99%

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Relaxation times in dissipative heavy-ion collisions

Riedel¹,

1979

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The classical model introduced earlier for analyzing experimental data on dissipative heavy-ion collisions, is generalized to include effects from the gradual dissipation of radial kinetic energy and from the development of fragment deformations during the collision. Relaxation times for the dissipation of radial kinetic energy (ZR) and relative angular momentum (zz) as well as for the development of deformations (~) are fitted to the reaction 86Kr (8.18 MeV/u)+ i66Er and applied to three other reactions. A consistent set of relaxation times is rR=0.3 -10 -21 S; "c l = 1.5.10-21S and %= 5.10 -21 s. Empirical mass transport coefficients are deduced from comparisons with experimental element distributions. Effects from fluctuations in the deflection function are discussed. Evidence is found for the existence of a relaxation time of the order 10-21s in the mass-drift coefficient.

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Section: Applicationssupporting

confidence: 63%

Section: Applicationssupporting

confidence: 56%

Section: Applicationsmentioning

confidence: 81%

Section: Applicationsmentioning

confidence: 99%

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Relaxation times in dissipative heavy-ion collisions

Riedel¹,

1979

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“…A fast process of this nature has been considered theoretically [15]. The assumption of "no drift" is supported by the results on the Xe+Bi system [16]. Those data have, however, not been taken at backward angles.…”

Section: B) Fission Following Deep Inelastic Processesmentioning

confidence: 94%

Fission of238U induced by136Xe for energies close to the Coulomb barrier

et al. 1977

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Excitation functions and angular distributions have been measured for fission of 238U induced by 136Xe ions with bombarding energies between 4.5 and 5.9 MeV/N. Structures expected theoretically as characteristic for Coulomb fission have not been observed. The Q-value of -(7.5+ 1.0)MeV measured for bombarding energies below 4.7MeV/N, however, appears to be compatible with inelastic scattering (e.g. Coulomb excitation) rather than subcoulomb transfer followed by fission. The total kinetic energy of deep inelastic events at 5.9 MeV/N is consistent with the current knowledge about mass diffusion, but also (for the highest excitation energies) with a fast fission process in the presence of the projectile.

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Heavy‐ion Reactions: Selected Topics

2017

Physics of Atomic Nuclei

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Study of the ReactionBi209+Xe

Cited by 71 publications

References 12 publications

Relaxation times in dissipative heavy-ion collisions

Relaxation times in dissipative heavy-ion collisions

Fission of238U induced by136Xe for energies close to the Coulomb barrier

Heavy‐ion Reactions: Selected Topics

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