Nuclear structure of 170Tm from neutron-capture and (d,p)-reaction measurements

R. W. Hoff; H. G. Börner; K. Schreckenbach; G. G. Colvin; F. Hoyler; W. Schauer; T. Von Egidy; R. Georgii; J. Ott; S. Schründer; R. F. Casten; R. L. Gill; M. Balodis; P. Prokofjevs; L. Simonova; J. Kern; V. A. Khitrov; A. M. Sukhovoj; O. Bersillon; S. Joly; G. Graw; D. Hofer; B. Valnion

doi:10.1103/PhysRevC.54.78

Nuclear structure of ¹⁷⁰Tm from neutron-capture and (d,p)-reaction measurements

R. W. Hoff, H. G. Börner, K. Schreckenbach, G. G. Colvin, F. Hoyler, W. Schauer, T. Von Egidy, R. Georgii, J. Ott, S. Schründer, R. F. Casten, R. L. Gill, M. Balodis, P. Prokofjevs, L. Simonova, J. Kern, V. A. Khitrov, A. M. Sukhovoj, O. Bersillon, S. JolyG. Graw, D. Hofer, B. Valnion

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Abstract

We have made experimental measurements in ¹⁷⁰Tm of the following: secondary γ rays, conversion electrons, and γ-γ coincidences from thermal neutron capture in ¹⁶⁹Tm, primary γ rays from average resonance capture with 2-keV and 24-keV neutron beams, and proton spectra from the (d,p) reaction on ¹⁶⁹Tm. From these data and those of previous investigations, we have identified more than 130 excited levels in ¹⁷⁰Tm below 1550 keV. Of these, 62 (with connecting transitions) are placed in 18 rotational bands with assigned Nilsson configurations. These results are in good agreement with a semiempirical modeling of ¹⁷⁰Tm level structure. Values for seven Gallagher-Moszkowski splittings and four Newby shifts have been obtained. These matrix elements show remarkably good agreement with calculation. Among the observed K^π=1^- and 2^- rotational bands, configuration mixing appears to play a significant role.

Original language	English
Pages (from-to)	78-116
Number of pages	39
Journal	Physical Review C - Nuclear Physics
Volume	54
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.54.78
State	Published - Jul 1996

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Hoff, R. W., Börner, H. G., Schreckenbach, K., Colvin, G. G., Hoyler, F., Schauer, W., Von Egidy, T., Georgii, R., Ott, J., Schründer, S., Casten, R. F., Gill, R. L., Balodis, M., Prokofjevs, P., Simonova, L., Kern, J., Khitrov, V. A., Sukhovoj, A. M., Bersillon, O., ... Valnion, B. (1996). Nuclear structure of ¹⁷⁰Tm from neutron-capture and (d,p)-reaction measurements. Physical Review C - Nuclear Physics, 54(1), 78-116. https://doi.org/10.1103/PhysRevC.54.78

@article{eb09a9014a124527bb3797ab0d053844,

title = "Nuclear structure of 170Tm from neutron-capture and (d,p)-reaction measurements",

abstract = "We have made experimental measurements in 170Tm of the following: secondary γ rays, conversion electrons, and γ-γ coincidences from thermal neutron capture in 169Tm, primary γ rays from average resonance capture with 2-keV and 24-keV neutron beams, and proton spectra from the (d,p) reaction on 169Tm. From these data and those of previous investigations, we have identified more than 130 excited levels in 170Tm below 1550 keV. Of these, 62 (with connecting transitions) are placed in 18 rotational bands with assigned Nilsson configurations. These results are in good agreement with a semiempirical modeling of 170Tm level structure. Values for seven Gallagher-Moszkowski splittings and four Newby shifts have been obtained. These matrix elements show remarkably good agreement with calculation. Among the observed Kπ=1- and 2- rotational bands, configuration mixing appears to play a significant role.",

author = "Hoff, {R. W.} and B{\"o}rner, {H. G.} and K. Schreckenbach and Colvin, {G. G.} and F. Hoyler and W. Schauer and {Von Egidy}, T. and R. Georgii and J. Ott and S. Schr{\"u}nder and Casten, {R. F.} and Gill, {R. L.} and M. Balodis and P. Prokofjevs and L. Simonova and J. Kern and Khitrov, {V. A.} and Sukhovoj, {A. M.} and O. Bersillon and S. Joly and G. Graw and D. Hofer and B. Valnion",

year = "1996",

month = jul,

doi = "10.1103/PhysRevC.54.78",

language = "English",

volume = "54",

pages = "78--116",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "1",

}

Hoff, RW, Börner, HG, Schreckenbach, K, Colvin, GG, Hoyler, F, Schauer, W, Von Egidy, T, Georgii, R, Ott, J, Schründer, S, Casten, RF, Gill, RL, Balodis, M, Prokofjevs, P, Simonova, L, Kern, J, Khitrov, VA, Sukhovoj, AM, Bersillon, O, Joly, S, Graw, G, Hofer, D & Valnion, B 1996, 'Nuclear structure of ¹⁷⁰Tm from neutron-capture and (d,p)-reaction measurements', Physical Review C - Nuclear Physics, vol. 54, no. 1, pp. 78-116. https://doi.org/10.1103/PhysRevC.54.78

TY - JOUR

T1 - Nuclear structure of 170Tm from neutron-capture and (d,p)-reaction measurements

AU - Hoff, R. W.

AU - Börner, H. G.

AU - Schreckenbach, K.

AU - Colvin, G. G.

AU - Hoyler, F.

AU - Schauer, W.

AU - Von Egidy, T.

AU - Georgii, R.

AU - Ott, J.

AU - Schründer, S.

AU - Casten, R. F.

AU - Gill, R. L.

AU - Balodis, M.

AU - Prokofjevs, P.

AU - Simonova, L.

AU - Kern, J.

AU - Khitrov, V. A.

AU - Sukhovoj, A. M.

AU - Bersillon, O.

AU - Joly, S.

AU - Graw, G.

AU - Hofer, D.

AU - Valnion, B.

PY - 1996/7

Y1 - 1996/7

N2 - We have made experimental measurements in 170Tm of the following: secondary γ rays, conversion electrons, and γ-γ coincidences from thermal neutron capture in 169Tm, primary γ rays from average resonance capture with 2-keV and 24-keV neutron beams, and proton spectra from the (d,p) reaction on 169Tm. From these data and those of previous investigations, we have identified more than 130 excited levels in 170Tm below 1550 keV. Of these, 62 (with connecting transitions) are placed in 18 rotational bands with assigned Nilsson configurations. These results are in good agreement with a semiempirical modeling of 170Tm level structure. Values for seven Gallagher-Moszkowski splittings and four Newby shifts have been obtained. These matrix elements show remarkably good agreement with calculation. Among the observed Kπ=1- and 2- rotational bands, configuration mixing appears to play a significant role.

AB - We have made experimental measurements in 170Tm of the following: secondary γ rays, conversion electrons, and γ-γ coincidences from thermal neutron capture in 169Tm, primary γ rays from average resonance capture with 2-keV and 24-keV neutron beams, and proton spectra from the (d,p) reaction on 169Tm. From these data and those of previous investigations, we have identified more than 130 excited levels in 170Tm below 1550 keV. Of these, 62 (with connecting transitions) are placed in 18 rotational bands with assigned Nilsson configurations. These results are in good agreement with a semiempirical modeling of 170Tm level structure. Values for seven Gallagher-Moszkowski splittings and four Newby shifts have been obtained. These matrix elements show remarkably good agreement with calculation. Among the observed Kπ=1- and 2- rotational bands, configuration mixing appears to play a significant role.

UR - http://www.scopus.com/inward/record.url?scp=16144368193&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.54.78

DO - 10.1103/PhysRevC.54.78

M3 - Article

AN - SCOPUS:16144368193

SN - 0556-2813

VL - 54

SP - 78

EP - 116

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 1

ER -

Nuclear structure of ¹⁷⁰Tm from neutron-capture and (d,p)-reaction measurements

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