252Cf: neutron multiplicities in correlation with fission-fragment mass and energy

Aarle, J. van; Westmeier, W.; Esterlund, R.A.; Patzelt, P.

doi:10.1016/0375-9474(94)90970-9

Cited by 23 publications

(9 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As can be easily seen, there are two prominent humps determined as A L = 108-109 amu and A H = 144 amu in the mass distribution corresponding to the light and heavy fission fragments, respectively, are in good agreement with a literature values A L = 108.9 ± 0.5 amu and A H = 143.1 ± 0.5 within the experimental accuracy [9]. Solar cell detectors calibrated using the method given above were then used for detecting fission fragments from the 14 N + 235 U fusion-fission reaction.…”

Section: Resultssupporting

confidence: 89%

See 1 more Smart Citation

Study of fission fragments produced by 14N + 235U reaction

et al. 2006

View full text Add to dashboard Cite

Abstract. This work was performed to understand the structure of neutron-rich fission fragments around the 130 mass region. A thin 235 U target was bombarded by a 14 N beam with 10 MeV/A from the Separated Sector Cyclotron at the iThemba Laboratory for Accelerator Based Sciences, Cape Town, South Africa. The main goal was to detect and identify fission fragments and to obtain their mass distribution by using solar cell detectors in the AFRODITE (African Omnipurpose Detector for Innovative Techniques and Experiments) spectrometer. The X-rays emitted from fission fragments were detected by LEP (Low Energy Photon) detectors and γ-rays emitted from excited states of the fission fragments were detected by CLOVER detectors in the spectrometer.PACS. 25.70.Jj Fusion and fusion-fission reactions -21.10.Gv Mass and neutron distributions

show abstract

Section: Resultssupporting

confidence: 89%

“…The calibration and unfolding results plotted in figs. 2 and 3 are based on average neutron multiplicity for each fragment [8] and the well-known 252 Cf mass distribution [9,10,11].…”

Section: Resultsmentioning

confidence: 99%

Study of fission fragments produced by 14N + 235U reaction

et al. 2006

View full text Add to dashboard Cite

show abstract

“…On the other hand, the total excitation energy can be obtained by (TXE)(mi) = Qmax(mi) -(TKE)(mi), (8) where Qmax(mi) is the maximum Q-value of the reaction. The Q-value depends on the charge partition for a given mass division.…”

Section: Discussionmentioning

confidence: 99%

Simultaneous Measurement of Prompt Neutrons and Fission Fragments for 239Pu(nth, f).

Tsuchiya

Nakagome

Yamana

et al. 2000

J. Nucl. Sci. Technol.

View full text Add to dashboard Cite

The multiplicity and energy of the prompt neutrons emitted from the fission fragments for 239 Pu(nth, f) were measured as functions of the fragment mass and total kinetic energy. The results were compared with those for 233 U(nth, f) and with the predicted values by the multi-channel fission theory with the random neck rupture model.The measured and predicted values of the neutron multiplicity, (v)(m*), show the saw-tooth trend and agree with each other. The total neutron multiplicity decreases linearly with increasing total kinetic energy resulting in -d(TKE)/d(vt 0 t)=16.5±0.4MeV/neutron. The slope of the neutron multiplicity vs. the total kinetic energy, -d(v) / d(T KE), was plotted against the fragment mass. Its shape agrees with that for 233 U(nth, f).The average neutron emission energy, (rJ)(m*), follows a bell shape about the symmetric fission accompanying higher values for very asymmetric fissions and agrees with that for 233 U(nth, f). The total excitation energy (TXE)(m*) was determined by two manners: (1) neutron data and (2) Qmax-(TKE). Both results satisfactorily agree with each other as the case of 233 U(nth, f), and thereby the present derivation of (TKE) from the neutron data is confirned.

show abstract

“…This effect is taken into account in MC-BGM through the calculation of total energy release using the mass equation. It is obvious that MC-BGM gives better agreement with the experiment data [20] (Table III). It is interesting that the experimental value of ν(A) for S2 is less than that for S1 (Table III) although the pre-scission shape of S2 is longer than that of S1 resulting in a lower TKE(A) in S2.…”

Section: Results Of Monte Carlo Calculationmentioning

confidence: 68%

Monte Carlo calculation of the de-excitation of fission fragments ofCf252(sf) within multimodal random neck rupture model

Büyükmumcu

Kildir

2006

Phys. Rev. C

View full text Add to dashboard Cite

The multimodal random neck rupture model has been employed to study the energy distribution in nuclear fission. Monte Carlo calculations have been carried out on the de-excitation of fission fragments of 252 Cf(sf ) using this model. In this study special attention has been paid to the law of conservation of energy. Results for the neutron multiplicities and kinetic energies, average gamma energies are in good agreement with the experimental data. Mass and charge distributions of secondary fission fragments are also well reproduced in the calculations.

show abstract

252Cf: neutron multiplicities in correlation with fission-fragment mass and energy

Cited by 23 publications

References 10 publications

Study of fission fragments produced by 14N + 235U reaction

Study of fission fragments produced by 14N + 235U reaction

Simultaneous Measurement of Prompt Neutrons and Fission Fragments for 239Pu(nth, f).

Monte Carlo calculation of the de-excitation of fission fragments ofCf252(sf) within multimodal random neck rupture model

Contact Info

Product

Resources

About