Mass-yield distributions in photofission of 232Th and 238U

Chattopadhyay, Amares; Dost, K.A.; Krajbich, I.; Sharma, H. D.

doi:10.1016/0022-1902(73)80491-9

Cited by 31 publications

(20 citation statements)

References 46 publications

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“…In order to examine the role of excitation energy, the yields of fission products in the 10 MeV bremsstrahlung-induced fission of 232 Th and 238 U and at higher energies from Refs. [55,58,69] are plotted in Figs. 6 and 7, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…In order to examine this aspect, the yield of fission products in the peak position, in the symmetric region and their ratio (i.e. peak-to-valley (P /V ) ratio) in the bremsstrahlung-induced fission of 232 Th [55][56][57][58][59][60]89] and 238 U [61][62][63][64][65][66][67][68][69][70][71][72][73][74]90] are given in Tables 4 and 5, respectively. Similarly the yield of fission products in the peak position, the symmetric region and their ratio (i.e., peak-to-valley (P /V ) ratio) in the mono-energetic neutron-induced fission of 232 Th [38][39][40][41][42] and 238 U [45][46][47][48] are given in Tables 6 and 7, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly yields of fission fragments in the excitation energy range of the GDR region due to electromagnetic fission in inverse kinematics [52][53][54] are available for neutron-deficient lighter actinides such as 214-223 Ac, 220-229 Th, 224-232 Pa and 231-234 U. On the other hand, yields of fission products in the bremsstrahlung-induced fission of actinides are available in a broad energy range for a limited number of actinides including 232 Th [55][56][57][58][59][60], 235,238 U [61][62][63][64][65][66][67][68][69][70][71][72][73][74] and 240,242,244 Pu [75][76][77][78]. Most of the yield data on fission products available in the 9 MeV to several GeV bremsstrahlung-induced fission of 232 Th [55][56][57][58][59] and 235,238 U [61][62][63][64][65][66][67] are based on radiochemical separation and beta counting or γ -ray spectrometric techniques.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mass distribution in the bremsstrahlung-induced fission of 232Th, 238U and 240Pu

Naik

Nimje²,

Raj³

et al. 2011

Nuclear Physics A

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mass distribution in the bremsstrahlung-induced fission of 232Th, 238U and 240Pu

Naik

Nimje²,

Raj³

et al. 2011

Nuclear Physics A

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“…Figure 6 shows the peak-to-valley ratio p/v as a function of the average excitation energy obtained in this work and in Refs. [21,22,[45][46][47][48] for photofission of 238 U, and in Refs. [24,49] and [25,[50][51][52][53][54][55] for fission of, respectively, 235 U and 238 U, induced by monoenergetic neutrons.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

Mass yield distributions and fission modes in photofission ofU238below 20 MeV

et al. 2015

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Photon activation technique is used to obtain photofission mass distributions of 238 U after irradiation in a bremsstrahlung beam with end-point energies 19.5, 29.1, 48.3, and 67.7 MeV. The weights of the symmetric (SL) and asymmetric (STI and STII) modes in the mass distributions of photofission of 238 U and neutron-induced fission of 235,238 U at the average excitation energies of up to 20 MeV are calculated on the basis of the obtained results and other available data. The weight of the SL mode increases by about an order of magnitude as the average excitation energy increases from 8.5 to 17 MeV, while the weight of the STI mode decreases by two times, and the weight of the STII mode slightly increases. It is shown that the peak-to-valley ratios in photofission of 238 U and neutron-induced fission of 235 U are very close across almost the whole studied energy range. A similar conclusion is made concerning the behavior of asymmetric and symmetric fission modes in photofission of 238 U and neutron-induced fission of 235 U and 238 U.

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“…Sufficient data for neutron and bremsstrahlung-induced fission of actinides in the low energy region are available in the literature [1][2][3][4][5][6][7][8][9][10]. From all these data, it is clear that the mass-yield distribution in the low energy neutron and bremsstrahlung-induced fission of actinides are asymmetric with fine structure due to shell closure proximity and odd-even effects.…”

Section: Introductionmentioning

confidence: 97%