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Chinese Physics C> 2015, Vol. 39> Issue(1) : 014102 DOI: 10.1088/1674-1137/39/1/014102

Pre-neutron-emission mass distributions for reaction238U(n, f) up to 60 MeV

  • The pre-neutron-emission mass distributions for reaction 238U(n, f) up to 60 MeV are systematically studied with an empirical fission potential model. The energy dependence of the peaks and valleys of the pre-neutron-emission mass distributions is described by an exponential form based on the newly measured data. The energy dependence of evaporation neutrons before scission is also considered, which plays a crucial role in the reasonable description of the mass distributions. The measured data of the pre-neutron-emission mass distributions for reaction 238U(n, f) are reasonably well reproduced up to 60 MeV. The mass distributions at unmeasured energies are also predicted using this approach.
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  • References

    [1] Hahn O, Strassmann F. Naturwissenschaften, 1939, 27: 11-15[2] Randrup J, Mller P. Phys. Rev. Lett., 2011, 106: 132503[3] Lammer M. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 1[4] Ryzhov I V, Yavshits S G, Tutin G A et al. Phys. Rev. C, 2011, 83: 054603[5] Goutte H, Berger J F, Casoli P et al. Phys. Rev. C, 2005, 71: 024316[6] Vanin D V, Kosenko G I, Adeev G D. Phys. Rev. C, 1999, 59: 2114-2121[7] Karpov A V, Nadtochy P N, Vanin D V et al. Phys. Rev. C, 2001, 63: 054610[8] HU J M. Physics of Nuclear Fission. Beijing: Peking University Press, 1999. 133-211[9] Dubray N, Goutte H, Delaroche J P. Phys. Rev. C, 2008, 77: 014310[10] Younes W, Gogny D. Phys. Rev. C, 2009, 80: 054313[11] Mller P, Madland D G, Sierk A J et al. Nature, 2001, 409: 785-790[12] Mller P, Sierk A J, Iwamoto A. Phys. Rev. Lett., 2004, 92: 072501[13] Mller P, Sierk A J, Ichikawa T et al. Phys. Rev. C, 2009, 79: 064304[14] Randrup J, Mller P, Sierk A J. Phys. Rev. C, 2011, 84: 003461[15] Brosa U, Grossmann S, Müller A. Phys. Rep., 1990, 197: 167-262[16] Duijvestijn M C, Koning A J, Hambsch F J. Phys. Rev. C, 2001, 64: 014607[17] Koning A J, Hilaire S, Duijvestijn M C. TALYS-1.0. France: EDP Sciences, 2007. 211[18] LIU T J, SUN Z J. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 323[19] Katakura J. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 149[20] Wahl A C. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 117[21] Lammer M. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 253[22] LIU M, WANG N, LI Z X. Nucl. Phys. A, 2006, 768: 80-98[23] WANG N, LIU M, YANG Y X. Sci. China Ser. G, 2009, 52: 1554-1573[24] SUN X J, YU C G, WANG N. Phys. Rev. C, 2012, 85: 014613[25] Madland D G. Nucl. Phys. A, 2006, 772: 113-137[26] Shcherbakov O, Donets A, Evdokimov A et al. J. Nucl. Sci. Technol., 2002, 2(Supplement): 230-233[27] Lisowski P W, Gavron A, Parker W E et al. Fission cross section Ratios for 233,234,236U Relative to 235U from 0.5 10 400 MeV. Berlin: Springer, 1992. 732[28] Lisowski P W, Gavron A, Parker W E et al. Fission Cross Sections in the Intermediate Energy Region. Paris: OECD, 1991. 177[29] Simutkin V. Ph. D. Thesis, Acta Universitatis Upsaliensis, Uppsala, 2011. 35[30] Vivés F, Hambsch F J, Bax H et al. Nucl. Phys. A, 2000, 662: 63-92[31] Zller C. Seminar on Fission, Belgium: Pont d'Oye III Habayla-Neuve, 1995. 56

  • References

    [1] Hahn O, Strassmann F. Naturwissenschaften, 1939, 27: 11-15[2] Randrup J, Mller P. Phys. Rev. Lett., 2011, 106: 132503[3] Lammer M. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 1[4] Ryzhov I V, Yavshits S G, Tutin G A et al. Phys. Rev. C, 2011, 83: 054603[5] Goutte H, Berger J F, Casoli P et al. Phys. Rev. C, 2005, 71: 024316[6] Vanin D V, Kosenko G I, Adeev G D. Phys. Rev. C, 1999, 59: 2114-2121[7] Karpov A V, Nadtochy P N, Vanin D V et al. Phys. Rev. C, 2001, 63: 054610[8] HU J M. Physics of Nuclear Fission. Beijing: Peking University Press, 1999. 133-211[9] Dubray N, Goutte H, Delaroche J P. Phys. Rev. C, 2008, 77: 014310[10] Younes W, Gogny D. Phys. Rev. C, 2009, 80: 054313[11] Mller P, Madland D G, Sierk A J et al. Nature, 2001, 409: 785-790[12] Mller P, Sierk A J, Iwamoto A. Phys. Rev. Lett., 2004, 92: 072501[13] Mller P, Sierk A J, Ichikawa T et al. Phys. Rev. C, 2009, 79: 064304[14] Randrup J, Mller P, Sierk A J. Phys. Rev. C, 2011, 84: 003461[15] Brosa U, Grossmann S, Müller A. Phys. Rep., 1990, 197: 167-262[16] Duijvestijn M C, Koning A J, Hambsch F J. Phys. Rev. C, 2001, 64: 014607[17] Koning A J, Hilaire S, Duijvestijn M C. TALYS-1.0. France: EDP Sciences, 2007. 211[18] LIU T J, SUN Z J. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 323[19] Katakura J. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 149[20] Wahl A C. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 117[21] Lammer M. Proc. Fission Product Yields: Minor Actinides up to 150 MeV. Ed. Lammer M. Vienna: IAEA, 2008. 253[22] LIU M, WANG N, LI Z X. Nucl. Phys. A, 2006, 768: 80-98[23] WANG N, LIU M, YANG Y X. Sci. China Ser. G, 2009, 52: 1554-1573[24] SUN X J, YU C G, WANG N. Phys. Rev. C, 2012, 85: 014613[25] Madland D G. Nucl. Phys. A, 2006, 772: 113-137[26] Shcherbakov O, Donets A, Evdokimov A et al. J. Nucl. Sci. Technol., 2002, 2(Supplement): 230-233[27] Lisowski P W, Gavron A, Parker W E et al. Fission cross section Ratios for 233,234,236U Relative to 235U from 0.5 10 400 MeV. Berlin: Springer, 1992. 732[28] Lisowski P W, Gavron A, Parker W E et al. Fission Cross Sections in the Intermediate Energy Region. Paris: OECD, 1991. 177[29] Simutkin V. Ph. D. Thesis, Acta Universitatis Upsaliensis, Uppsala, 2011. 35[30] Vivés F, Hambsch F J, Bax H et al. Nucl. Phys. A, 2000, 662: 63-92[31] Zller C. Seminar on Fission, Belgium: Pont d'Oye III Habayla-Neuve, 1995. 56

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1. Chen, J.-H., Yang, B., Jia, Q.-G. et al. Optimization of the prompt fission neutron spectra of 239Pu(n,f) via criticality benchmarking[J]. Nuclear Science and Techniques, 2025, 36(9): 163. doi: 10.1007/s41365-025-01724-1
2. Zou, F., Sun, X., Wu, W. et al. Systematic formula of pre-neutron-emission mass distributions for neutron-induced actinide fission at low incident energies[J]. Annals of Nuclear Energy, 2025. doi: 10.1016/j.anucene.2024.111124
3. Wang, Q., Wang, Y., Zhonglin li, Wang, Q. et al. Fission cross-section measurement for Xe135m and Xe135g in U238 reaction induced by 14MeV D-T neutrons[J]. Applied Radiation and Isotopes, 2023. doi: 10.1016/j.apradiso.2023.110852
4. Zou, F., Sun, X., Zhang, K. et al. Pre-neutron fragment mass yields for 235U(n,f) and 239Pu(n,f) reactions at incident energies from thermal up to 20 MeV[J]. Chinese Physics C, 2023, 47(4): 044101. doi: 10.1088/1674-1137/acb910
5. Yang, X., Lan, C., Nie, Y. et al. Cumulative fission yield measurements with 14.7 MeV neutrons on 238U*[J]. Chinese Physics C, 2023, 47(2): 024001. doi: 10.1088/1674-1137/aca1ab
6. Liu, C.-Q., Wei, Z., Han, C. et al. Monte Carlo simulation of fast neutron-induced fission of 237Np[J]. Chinese Physics C, 2019, 43(6): 064001. doi: 10.1088/1674-1137/43/6/064001
7. Li, K., Wei, Z., Liu, C. et al. Calculation and simulation on the fission products for neutron-induced 239Pu fission based on Potential-driving model | [基于Potential-driving模型的中子诱发239Pu 裂变产物计算与模拟研究][J]. He Jishu Nuclear Techniques, 2018, 41(6): 060503. doi: 10.11889/j.0253-3219.2018.hjs.41.060503
Get Citation
SUN Xiao-Jun, YU Cheng-Gang, WANG Ning, YANG Yong-Xu and PAN Cheng-Hua. Pre-neutron-emission mass distributions for reaction238U(n, f) up to 60 MeV[J]. Chinese Physics C, 2015, 39(1): 014102. doi: 10.1088/1674-1137/39/1/014102
SUN Xiao-Jun, YU Cheng-Gang, WANG Ning, YANG Yong-Xu and PAN Cheng-Hua. Pre-neutron-emission mass distributions for reaction238U(n, f) up to 60 MeV[J]. Chinese Physics C, 2015, 39(1): 014102.  doi: 10.1088/1674-1137/39/1/014102 shu
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Received: 2014-03-24
Revised: 1900-01-01
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Pre-neutron-emission mass distributions for reaction238U(n, f) up to 60 MeV

    Corresponding author: SUN Xiao-Jun,
  • Received Date: 2014-03-24
  • Accepted Date: 1900-01-01
  • Available Online: 2015-01-05

Abstract: The pre-neutron-emission mass distributions for reaction 238U(n, f) up to 60 MeV are systematically studied with an empirical fission potential model. The energy dependence of the peaks and valleys of the pre-neutron-emission mass distributions is described by an exponential form based on the newly measured data. The energy dependence of evaporation neutrons before scission is also considered, which plays a crucial role in the reasonable description of the mass distributions. The measured data of the pre-neutron-emission mass distributions for reaction 238U(n, f) are reasonably well reproduced up to 60 MeV. The mass distributions at unmeasured energies are also predicted using this approach.

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