Beta- and gamma-decay studies of neutron-rich chromium, manganese, cobalt and nickel isotopes including the new isotopes 60Cr and 60gMn

U. Bosch; W. D. Schmidt-Ott; E. Runte; P. Tidemand-Petersson; P. Koschel; F. Meissner; R. Kirchner; O. Klepper; E. Roeckl; K. Rykaczewski; D. Schardt

doi:10.1016/0375-9474(88)90362-4

Beta- and gamma-decay studies of neutron-rich chromium, manganese, cobalt and nickel isotopes including the new isotopes ⁶⁰Cr and ^60gMn

U. Bosch, W. D. Schmidt-Ott, E. Runte, P. Tidemand-Petersson, P. Koschel, F. Meissner, R. Kirchner, O. Klepper, E. Roeckl, K. Rykaczewski, D. Schardt

Nuclear Structure and Nuclear Astrophysi

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

68 Scopus citations

Abstract

A 36 mg cm² thick ^natW target was irradiated with 11.5 MeV/u ⁷⁶Ge of 15 to 20 particle-nA beam intensity. On-line mass-separated samples of projectile-like neutron-rich products from multi-nucleon transfer-reactions were investigated in the region of mass 58-69 by β and γ-ray spectroscopy. The new isotope ⁶⁰Cr was identified with a half-life of 0.57 (6) s and for the ⁶⁰Mn ground state a half-life value of 51 (6) s was obtained. Decay schemes were constructed for ⁵⁸Cr, ⁵⁸Mn (t_{1 2} = 3s), ^65,66,67Co and ⁶⁹Ni. One new γ-ray was found in the decay of ⁵⁹Cr. The Q_β value of ⁶⁶Co was measured yielding 9.7 (5) MeV. The comparison of the measured new β half-life of ⁶⁰Cr with the most recent predictions gave again an enhancement of the experimental value.

Original language	English
Pages (from-to)	89-104
Number of pages	16
Journal	Nuclear Physics A
Volume	477
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(88)90362-4
State	Published - Feb 1 1988

Funding

* Work supported by Federal Ministry of Research and Technology (BMFT) 0660456. ’ PhD thesis, GGttingen, 1987. ’ Present address: Fysisk Institut, Arhus Universitet, DK-8000 Arhus C. 3 On leave of absence from Instytut Fizyki Doswiadczalnej, Uniwersytet Warszawa, Poland.

Keywords

Radioactivity

Access to Document

10.1016/0375-9474(88)90362-4

Cite this

Bosch, U., Schmidt-Ott, W. D., Runte, E., Tidemand-Petersson, P., Koschel, P., Meissner, F., Kirchner, R., Klepper, O., Roeckl, E., Rykaczewski, K., & Schardt, D. (1988). Beta- and gamma-decay studies of neutron-rich chromium, manganese, cobalt and nickel isotopes including the new isotopes ⁶⁰Cr and ^60gMn. Nuclear Physics A, 477(1), 89-104. https://doi.org/10.1016/0375-9474(88)90362-4

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title = "Beta- and gamma-decay studies of neutron-rich chromium, manganese, cobalt and nickel isotopes including the new isotopes 60Cr and 60gMn",

abstract = "A 36 mg cm2 thick natW target was irradiated with 11.5 MeV/u 76Ge of 15 to 20 particle-nA beam intensity. On-line mass-separated samples of projectile-like neutron-rich products from multi-nucleon transfer-reactions were investigated in the region of mass 58-69 by β and γ-ray spectroscopy. The new isotope 60Cr was identified with a half-life of 0.57 (6) s and for the 60Mn ground state a half-life value of 51 (6) s was obtained. Decay schemes were constructed for 58Cr, 58Mn (t 1 2 = 3s), 65,66,67Co and 69Ni. One new γ-ray was found in the decay of 59Cr. The Qβ value of 66Co was measured yielding 9.7 (5) MeV. The comparison of the measured new β half-life of 60Cr with the most recent predictions gave again an enhancement of the experimental value.",

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Bosch, U, Schmidt-Ott, WD, Runte, E, Tidemand-Petersson, P, Koschel, P, Meissner, F, Kirchner, R, Klepper, O, Roeckl, E, Rykaczewski, K & Schardt, D 1988, 'Beta- and gamma-decay studies of neutron-rich chromium, manganese, cobalt and nickel isotopes including the new isotopes ⁶⁰Cr and ^60gMn', Nuclear Physics A, vol. 477, no. 1, pp. 89-104. https://doi.org/10.1016/0375-9474(88)90362-4

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T1 - Beta- and gamma-decay studies of neutron-rich chromium, manganese, cobalt and nickel isotopes including the new isotopes 60Cr and 60gMn

AU - Bosch, U.

AU - Schmidt-Ott, W. D.

AU - Runte, E.

AU - Tidemand-Petersson, P.

AU - Koschel, P.

AU - Meissner, F.

AU - Kirchner, R.

AU - Klepper, O.

AU - Roeckl, E.

AU - Rykaczewski, K.

AU - Schardt, D.

PY - 1988/2/1

Y1 - 1988/2/1

N2 - A 36 mg cm2 thick natW target was irradiated with 11.5 MeV/u 76Ge of 15 to 20 particle-nA beam intensity. On-line mass-separated samples of projectile-like neutron-rich products from multi-nucleon transfer-reactions were investigated in the region of mass 58-69 by β and γ-ray spectroscopy. The new isotope 60Cr was identified with a half-life of 0.57 (6) s and for the 60Mn ground state a half-life value of 51 (6) s was obtained. Decay schemes were constructed for 58Cr, 58Mn (t 1 2 = 3s), 65,66,67Co and 69Ni. One new γ-ray was found in the decay of 59Cr. The Qβ value of 66Co was measured yielding 9.7 (5) MeV. The comparison of the measured new β half-life of 60Cr with the most recent predictions gave again an enhancement of the experimental value.

AB - A 36 mg cm2 thick natW target was irradiated with 11.5 MeV/u 76Ge of 15 to 20 particle-nA beam intensity. On-line mass-separated samples of projectile-like neutron-rich products from multi-nucleon transfer-reactions were investigated in the region of mass 58-69 by β and γ-ray spectroscopy. The new isotope 60Cr was identified with a half-life of 0.57 (6) s and for the 60Mn ground state a half-life value of 51 (6) s was obtained. Decay schemes were constructed for 58Cr, 58Mn (t 1 2 = 3s), 65,66,67Co and 69Ni. One new γ-ray was found in the decay of 59Cr. The Qβ value of 66Co was measured yielding 9.7 (5) MeV. The comparison of the measured new β half-life of 60Cr with the most recent predictions gave again an enhancement of the experimental value.

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