The isomeric ratios in photonuclear reactions of natural barium induced by bremsstrahlungs with endpoint energies in the giant dipole resonance region

Thiep, Tran Duc; An, Truong Thi; Cường, Phạm Việt; Vinh, Nguyen The

doi:10.1007/s10967-011-1371-9

Cited by 9 publications

(4 citation statements)

References 27 publications

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“…The calculation procedure is the same, which has been presented in refs. [15,26] by using the following expression:…”

Section: The Ir Calculationmentioning

confidence: 99%

“…In refs. [15,16] the authors by studying the IRs in photonuclear reaction of different isotopes led to conclusion that the IR decreases with the increase of neutron number. The dependence of IR on masses of isotones and isotopes is called the effect on nucleon configuration.…”

Section: Introductionmentioning

confidence: 99%

“…The excitation energy, momentum transfer effects can be found in refs. [15,16] and [20]. M. Huber et al [21] and J. J. Carroll et al [22] show the important role of intermediate state structure on the mechanism of population of the isomeric and ground states.…”

Section: Introductionmentioning

confidence: 99%

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The nuclear channel effect in the isomeric ratio of the reaction products

Tran¹,

Truong²,

Bui³

et al. 2019

Nucl. Sci. and Tech.

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This work presents the experimental study of the isomeric ratio of 115mCd to 115gCd produced in 116Cd(γ, n)115m,gCd photonuclear reaction and 116Cd(n, γ)115m,gCd neutron capture reaction by thermal, epithermal and mixed thermal and epithermal neutrons. The investigated samples were natural cadmium irradiated at the bremsstrahlung photon flux, in the neutron source constructed at the electron accelerator Microtron MT-25 of the Flerov Laboratory of Nuclear Reaction, Joint Institute for Nuclear Research, Dubna, Russia. The results were analyzed, discussed, compared and combined with those of other authors in the existing literature to examine the role of the nuclear channel effect in the isomeric ratio and provide the nuclear data for theoretical model interpretation of nuclear reactions and applied research.

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“…The calculation procedure is the same, which has been presented in refs. [15,26] by using the following expression:…”

Section: The Ir Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The nuclear channel effect in the isomeric ratio of the reaction products

Tran¹,

Truong²,

Bui³

et al. 2019

Nucl. Sci. and Tech.

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“…In ref. [4] we have studied the IRs of (γ, n) nuclear reactions in Z = 56 isotopes of Ba and the 2 isomeric pairs 129m,g Ba, 131m,g Ba and 133 Ba were formed with the same spin ground state 1 + /2 and isomeric states of spins 7 + /2, 9 -/2 and 11 -/2, respectively. The results showed that the IR decreases with the increase of the isomeric state spin.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the same isomeric pair, produced from different nuclear reactions

Duc¹,

Thi²,

Minh³

et al. 2020

Nucl. Sci. and Tech.

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The isomeric ratio (IR) of isomeric pair 109m,gPd, produced in 110Pd(γ, n)109m,gCd reaction and 108Pd(n, γ)109m,gPd neutron capture reactions, induced by thermal, epithermal and mixed thermal-epithermal neutrons have been determined. The off-line activation technique using a spectroscopic system consisting of a HPGe semiconductor detector with high energy resolution and a PC based 8192 channel analyzer (CANBERRA) was applied. The investigated samples were prepared from the 99.99 % purity PdO and irradiated at the electron accelerator Microtron MT-25 of the Joint Institute for Nuclear Research Dubna, Russia. The data analysis and necessary corrections were made to upgrade the precision of the experimental method. The obtained results were discussed, compared and combined with those from other authors to point out the role of the reaction channels in nuclear reactions.

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