Mass yield distributions and fission modes in photofission of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">U</mml:mi><mml:mprescripts /><mml:none /><mml:mn>238</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>below 20 MeV

Белышев, С. С.; Ishkhanov, B. S.; Кузнецов, А. А.; Stopani, K. A.

doi:10.1103/physrevc.91.034603

Cited by 19 publications

(6 citation statements)

References 51 publications

(115 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an example, we predict the E * of photofission on 240 Pu as shown in Fig. 8(d), which is required for accurately modeling neutronic characteristics in the advanced burner reactor [9]. A slight discrepancy between the calculation and evaluation is observed at relatively high .…”

Section: Prompt Neutron Predictionsmentioning

confidence: 99%

See 1 more Smart Citation

A general framework for describing photofission observables of actinides at an average excitation energy below 30 MeV *

Wang¹,

Lan²,

Shi³

et al. 2022

Chinese Phys. C

View full text Add to dashboard Cite

A general framework is proposed for characterising photofission observables of actinides, including mass yield distributions (MYD) and isobaric charge distributions (ICD) of fission fragments, and multiplicity and energy distributions of prompt neutrons (np) and prompt γ rays (γp). The framework encompasses mainly various systematics neutron models and empirical models considering the Bohr hypothesis and does not rely on experimental data as input. These models are then validated separately against the experimental data at average excitation energy below 30 MeV. It is found that the Gorodisskiy model incorporating the Bohr hypothesis reproduces well the experimental data and hence is clearly a priority to characterize photofission MYD. The following benchmark results show that the LD model and the systematic model are suitable for describing the most probable charge of the light and heavy fragments of actinides, respectively. Furthermore, the np and γp predictions with the empirical models are in accordance with the experimental results, indicating the prediction capability of the general framework. It is suggested that the framework offers great potential to predict photofission observables for various scenarios such as short-lived isotope production, nuclear waste disposal and nuclear safeguards.

show abstract

Section: Prompt Neutron Predictionsmentioning

confidence: 99%

“…They generally require a comprehensive knowledge of photofission, especially in the absence of experimental data, which characterize the photofission process; however, at present, they are not fully available. In addition, photofission observables are regarded as a necessity for the development of a new IAEA Photonuclear Data Library [9].…”

Section: Introductionmentioning

confidence: 99%

A general framework for describing photofission observables of actinides at an average excitation energy below 30 MeV *

Wang¹,

Lan²,

Shi³

et al. 2022

Chinese Phys. C

View full text Add to dashboard Cite

show abstract

“…Ref. [162] and references therein, have been and are still being performed. The use of charged-particle or heavy-ion projectiles made a number of additional nuclei available for fission experiments by transfer reactions [234] or fusion (e.g.…”

Section: Former Status Of Knowledgementioning

confidence: 99%

Review on the progress in nuclear fission

Schmidt,

Jurado

2018

Preprint

View full text Add to dashboard Cite

“…Although photofission was discovered more than fifty years ago [1], but its theoretical modeling was produced with many challenges. After the Wilkins presented the fragment mass distribution by Gaussian framework in scission point model [2][3][4], many researcher developed the multi-Gaussian model up to now [5][6][7][8][9][10]. Some models have the complicate forms [11] or complicate method [12] and some others have many parameters [13].…”

Section: Introductionmentioning

confidence: 99%

The investigation on fragments mass distributions for photofission of ${}^{232}{Th}$, ${}^{238}U$, ${}^{237}{Np}$ and ${}^{240}{Pu}$ isotopes by systematics methods

Kaldiani

2019

J. Phys. Commun.

View full text Add to dashboard Cite

Three neutron induced models have been investigated for photofission of 232 Th, 238 U, 237 Np and 240 Pu isotopes. The fission fragment mass distribution yields were calculated and compared with photofission experimental data on a logarithmic scale. The peak to valley ratio, average light mass ( A L á ñ) and heavy mass ( A H á ñ) for photofission of Th 232 and U 238 were calculated at different excitation energies. Also, the yields of symmetric and asymmetric fission products were calculated. The Gorodisskiy model were modified to fit the photofission experimental data on a logarithmic scale. The comparison between calculated results and the experimental data shows that the mentioned neutron models should not be used for the description of photofission reactions.

show abstract

Mass yield distributions and fission modes in photofission ofU238below 20 MeV

Cited by 19 publications

References 51 publications

A general framework for describing photofission observables of actinides at an average excitation energy below 30 MeV *

A general framework for describing photofission observables of actinides at an average excitation energy below 30 MeV *

Review on the progress in nuclear fission

The investigation on fragments mass distributions for photofission of ${}^{232}{Th}$, ${}^{238}U$, ${}^{237}{Np}$ and ${}^{240}{Pu}$ isotopes by systematics methods

Contact Info

Product

Resources

About