A study of low-lying states of 72As using the 72Ge(p, nγ)72As reaction

S. Mordechaǐ; E. Friedman; A. A. Jaffe; D. Nir; M. Paul

doi:10.1016/0375-9474(74)90312-1

A study of low-lying states of ⁷²As using the ⁷²Ge(p, nγ)⁷²As reaction

S. Mordechaǐ^*, E. Friedman, A. A. Jaffe, D. Nir, M. Paul

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Several low-lying states of ⁷²As have been studied via the γ-rays following the bombardment of ⁷²Ge by protons in the energy range 5.1-6.2 MeV. Gamma-ray spectra were obtained using a Ge(Li) detector, and gamma-gamma coincidences between this detector and a NaI crystal were also investigated. Besides the single previously known excited state at 46 keV, 12 additional excited states were determined in ⁷²As at energies of 213, 242, 308, 317, 333, 343, 413, 438, 454, 512, 523 and (561) keV. The angular distributions of the γ-rays from the 213 and 242 keV levels have also been measured, and the results have been analyzed using the compound nucleus statistical model. The excited states at 213 and 242 keV were found to have spins of (2) and 3 respectively.

Original language	English
Pages (from-to)	343-352
Number of pages	10
Journal	Nuclear Physics A
Volume	230
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(74)90312-1
State	Published - 23 Sep 1974

Keywords

Nuclear reaction

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10.1016/0375-9474(74)90312-1

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title = "A study of low-lying states of 72As using the 72Ge(p, nγ)72As reaction",

abstract = "Several low-lying states of 72As have been studied via the γ-rays following the bombardment of 72Ge by protons in the energy range 5.1-6.2 MeV. Gamma-ray spectra were obtained using a Ge(Li) detector, and gamma-gamma coincidences between this detector and a NaI crystal were also investigated. Besides the single previously known excited state at 46 keV, 12 additional excited states were determined in 72As at energies of 213, 242, 308, 317, 333, 343, 413, 438, 454, 512, 523 and (561) keV. The angular distributions of the γ-rays from the 213 and 242 keV levels have also been measured, and the results have been analyzed using the compound nucleus statistical model. The excited states at 213 and 242 keV were found to have spins of (2) and 3 respectively.",

keywords = "Nuclear reaction",

author = "S. Mordechaǐ and E. Friedman and Jaffe, {A. A.} and D. Nir and M. Paul",

year = "1974",

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doi = "10.1016/0375-9474(74)90312-1",

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T1 - A study of low-lying states of 72As using the 72Ge(p, nγ)72As reaction

AU - Mordechaǐ, S.

AU - Friedman, E.

AU - Jaffe, A. A.

AU - Nir, D.

AU - Paul, M.

PY - 1974/9/23

Y1 - 1974/9/23

N2 - Several low-lying states of 72As have been studied via the γ-rays following the bombardment of 72Ge by protons in the energy range 5.1-6.2 MeV. Gamma-ray spectra were obtained using a Ge(Li) detector, and gamma-gamma coincidences between this detector and a NaI crystal were also investigated. Besides the single previously known excited state at 46 keV, 12 additional excited states were determined in 72As at energies of 213, 242, 308, 317, 333, 343, 413, 438, 454, 512, 523 and (561) keV. The angular distributions of the γ-rays from the 213 and 242 keV levels have also been measured, and the results have been analyzed using the compound nucleus statistical model. The excited states at 213 and 242 keV were found to have spins of (2) and 3 respectively.

AB - Several low-lying states of 72As have been studied via the γ-rays following the bombardment of 72Ge by protons in the energy range 5.1-6.2 MeV. Gamma-ray spectra were obtained using a Ge(Li) detector, and gamma-gamma coincidences between this detector and a NaI crystal were also investigated. Besides the single previously known excited state at 46 keV, 12 additional excited states were determined in 72As at energies of 213, 242, 308, 317, 333, 343, 413, 438, 454, 512, 523 and (561) keV. The angular distributions of the γ-rays from the 213 and 242 keV levels have also been measured, and the results have been analyzed using the compound nucleus statistical model. The excited states at 213 and 242 keV were found to have spins of (2) and 3 respectively.

KW - Nuclear reaction

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SN - 0375-9474

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JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 2

ER -

A study of low-lying states of ⁷²As using the ⁷²Ge(p, nγ)⁷²As reaction

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