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POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY
Содержание
- 1. POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY
- 2. Number of events[1] Milton, Fraser, Can. J.
- 3. [2] Viola et al., Phys. Rev. C 31, 1550 (1985)2Average values of TKE
- 4. [3] Lazarev, At. En. Rev. 15, 1
- 5. Fission modeling4
- 6. Fission modelingScission4“Pre-scission configuration”or “Pre-fragments”
- 7. Fission modelingScissionFission fragments movement 4“Pre-scission configuration”or “Pre-fragments”
- 8. Fission modelingScissionFission fragments movement 4
- 9. 5
- 10. 5
- 11. Fig. 6. The continuous pre-scission configuration and the separated fission fragments 6
- 12. Details of the calculations 1) the fission
- 13. 8The initial conditions: The equations of motion(Trajectory model with surface friction – TMSF):(1)(2)(3)(4)
- 14. TMSF with fluctuations in fusion problem(5)[5] Chushnyakova, Bhattacharya, Gontchar, Phys. Rev. C 90, 017603 (2014)9
- 15. TMSF with fluctuations in fusion problem(5)[5] Chushnyakova, Bhattacharya, Gontchar, Phys. Rev. C 90, 017603 (2014) 9
- 16. 214RnFig. 10. The dissipated energy as the
- 17. 214Rn11
- 18. 12
- 19. 12
- 20. Conclusions 13The first step for the accounting
- 21. 238U+238U[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983)
- 22. 238U+238U[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983)
- 23. The equations for the potential energy
- 24. The equations for the potential energy[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983) (21) (22) (23)(24)(25)
- 25. 3j-symbols
- 26.
- 27. Approximating formulae:
- 28. Слайд 28
- 29. Fig. 23Fig. 2444
- 30. Скачать презентанцию
Number of events[1] Milton, Fraser, Can. J. Phys. 40, 1626 (1962)1Experimental data on total kinetic energy (TKE)
Слайды и текст этой презентации
Слайд 1POST-SCISSION DISSIPATIVE MOTION
AND FISSION-FRAGMENT KINETIC ENERGY
Maria Chushnyakova, Igor Gontchar
Omsk,
Russia
Слайд 2Number of events
[1] Milton, Fraser, Can. J. Phys. 40, 1626
(1962)
1
Experimental data on total kinetic energy (TKE)
![Number of events[1] Milton, Fraser, Can. J. Phys. 40, 1626 (1962)1Experimental data on total kinetic energy (TKE)](/img/thumbs/c0b0a762de191e8ba8ff898c32555d10-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY Number of events[1] Milton, Fraser, Can. J. Phys. 40, 1626 (1962)1Experimental")
![[2] Viola et al., Phys. Rev. C 31, 1550 (1985)2Average values of TKE](/img/thumbs/5dc7312e7214f580b84f1080277a3069-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY [2] Viola et al., Phys. Rev. C 31, 1550 (1985)2Average values of TKE")
Слайд 4[3] Lazarev, At. En. Rev. 15, 1 (1977);
[4] Nadtochy
et al. Phys. Scr. T154, 014004 (2013)
3
Variance of TKE
![[3] Lazarev, At. En. Rev. 15, 1 (1977); [4] Nadtochy et al. Phys. Scr. T154, 014004 (2013)3](/img/thumbs/929d189c256a1ba59af65fbbf30ccc85-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY [3] Lazarev, At. En. Rev. 15, 1 (1977); [4] Nadtochy et")
Слайд 7Fission modeling
Scission
Fission fragments movement
4
“Pre-scission configuration”
or “Pre-fragments”
Слайд 12Details of the calculations
1) the fission fragments (FFs) are
axially symmetric;
2) FFs has the common axis of symmetry;
3)
the fission is symmetric;4) the FFs deformations are equal and fixed;
5) the fluctuations are absent.
7
Слайд 13
8
The initial conditions:
The equations of motion
(Trajectory model with surface friction
– TMSF):
(1)
(2)
(3)
(4)
Слайд 14TMSF with fluctuations in fusion problem
(5)
[5] Chushnyakova, Bhattacharya, Gontchar, Phys.
Rev. C 90, 017603 (2014)
9
![TMSF with fluctuations in fusion problem(5)[5] Chushnyakova, Bhattacharya, Gontchar, Phys. Rev. C 90, 017603 (2014)9](/img/thumbs/b0516a63a10375bf25a34ad8239e169e-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY TMSF with fluctuations in fusion problem(5)[5] Chushnyakova, Bhattacharya, Gontchar, Phys. Rev. C 90, 017603 (2014)9")
Слайд 15TMSF with fluctuations in fusion problem
(5)
[5] Chushnyakova, Bhattacharya, Gontchar, Phys.
Rev. C 90, 017603 (2014)
9
![TMSF with fluctuations in fusion problem(5)[5] Chushnyakova, Bhattacharya, Gontchar, Phys. Rev. C 90, 017603 (2014) 9](/img/thumbs/0c545126d07cb413d085c52488db3b04-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY TMSF with fluctuations in fusion problem(5)[5] Chushnyakova, Bhattacharya, Gontchar, Phys. Rev. C 90, 017603 (2014) 9")
Слайд 16214Rn
Fig. 10. The dissipated energy as the function of time
for three values of the initial (pre-scission) kinetic energy
10
Слайд 20Conclusions
13
The first step for the accounting for the post-scission
motion of the fission fragments in the framework of dynamical
dissipative model is madeThe post-scission motion of the fission fragments can reduce the FFs kinetic energy for more than 5%
Energy dissipation during the post-scission motion is weakly sensible to the value of the pre-scission kinetic energy and dramatically sensible to the configuration at which the post-scission motion starts
![238U+238U[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983)](/img/thumbs/549c6fb0956e271fec2ce71a9f001248-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY 238U+238U[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983)")
![238U+238U[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983)](/img/thumbs/01a7cbaae0ca75a07c6b87b6c2a85dea-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY 238U+238U[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983)")
Слайд 24
The equations for the potential energy
[21] Rhoades-Brown et al., Z.
Phys. A310, 287-294 (1983)
(21)
(22)
(23)
(24)
(25)
![The equations for the potential energy[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983) (21) (22) (23)(24)(25)](/img/thumbs/eaf807c9495f9906dcab65de6b08caba-800x.jpg "POST-SCISSION DISSIPATIVE MOTION AND FISSION-FRAGMENT KINETIC ENERGY The equations for the potential energy[21] Rhoades-Brown et al., Z. Phys. A310, 287-294 (1983) (21) (22) (23)(24)(25)")
