The Study of Isomeric Ratios in Photonuclear Reactions Forming High  Spin Isomers in the Giant Dipole Resonance Region

Tran Duc Thiep; Truong Thi An; Phan Viet Cuong; Nguyen The Vinh; Bui Minh Hue; A. G. Belov; O. D. Maslov

doi:10.15625/0868-3166/24/4/5553

The Study of Isomeric Ratios in Photonuclear Reactions Forming High Spin Isomers in the Giant Dipole Resonance Region

Tran Duc Thiep, Truong Thi An, Phan Viet Cuong, Nguyen The Vinh, Bui Minh Hue, A. G. Belov, O. D. Maslov

Author affiliations

Authors

Tran Duc Thiep
Truong Thi An Institute of Physics, VAST, 10 Dao Tan St., Ba Dinh Region, Hanoi, Vietnam
Phan Viet Cuong Institute of Physics, VAST, 10 Dao Tan St., Ba Dinh Region, Hanoi, Vietnam
Nguyen The Vinh Institute of Physics, VAST, 10 Dao Tan St., Ba Dinh Region, Hanoi, Vietnam
Bui Minh Hue Institute of Physics, VAST, 10 Dao Tan St., Ba Dinh Region, Hanoi, Vietnam
A. G. Belov Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscow Region, Russia
O. D. Maslov Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscow Region, Russia

DOI:

https://doi.org/10.15625/0868-3166/24/4/5553

Keywords:

photonuclear reaction, isomeric ratio, GDR region, reaction yield, impulse

Abstract

We studied the isomeric ratios in odd-odd nuclei \(^{196}\)Au,\(^{182}\)Ta and \(^{194}\)Ir with high spin isomeric
states produced in \(^{197}\)Au\((\gamma, n)\) \(^{196m,g}\)Au, \(^{183}\)W\((\gamma, p)\) \(^{182m,g}\)Ta and \(^{185}\)Pt\((\gamma, p)\)
\(^{194m,g}\)Ir reactions by using the
activation technique and \(\gamma\)-ray spectroscopic method in the giant dipole resonance (GDR) region. The
high-purity natural Au, W and Pt foils in disc shape were irradiated with bremsstrahlungs generated from
an electron accelerator Microtron. The irradiated foils were measured by the high resolution \(\gamma\)-ray
spectroscopic system which consists of a Ge(HP) detector and a multichannel analyzer. In order to improve
the accuracy of the experimental results, necessary corrections were made in the \(\gamma\)-ray activity
measurements and data analysis. The results were analyzed, discussed and compared with those of other
authors as well as with theoretical model calculations. The study shows that the isomeric ratios in nuclei
with high spin isomeric states are much lower than that in low spin isomeric state isomers.

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Published

19-03-2015

How to Cite

[1]

T. D. Thiep, “The Study of Isomeric Ratios in Photonuclear Reactions Forming High Spin Isomers in the Giant Dipole Resonance Region”, Comm. Phys., vol. 24, no. 4, p. 381, Mar. 2015.

IEEE

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Issue

Vol. 24 No. 4 (2014)

Section

Papers

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