Nuclear data sheets for A = 232,236

Schmorak, M.R.

doi:10.1016/s0090-3752(82)80054-9

Cited by 36 publications

(5 citation statements)

References 109 publications

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“…Owing to the large sample thickness, the a peaks were broad at the lower-energy side and consequently the two a peaks could not be completely resolved. However, our present data are in agreement with reported values (Schmorak 1982).…”

Section: Resultssupporting

confidence: 94%

Radioactive decay of²³²Th

Saha¹,

Sahakundu²

1989

J. Phys. G: Nucl. Part. Phys.

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The decay of 232Th has been studied using high-resolution Ge and Si surface barrier detectors. Th was radiochemically purified from its daughter products for a-and yspectroscopic studies. Two y-rays with energies 63.8 and 140.8 keV were assigned to the decay of 232Th. The relative y-ray intensities, total transition intensities and a branchings to the first two excited states of z2xRa due to the a decay of 232Th have been estimated.

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Section: Resultssupporting

confidence: 94%

Radioactive decay of²³²Th

Saha¹,

Sahakundu²

1989

J. Phys. G: Nucl. Part. Phys.

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“…In a3zU and 23~U the ground-state rotational bands are known to high spins, and the K~= Obands are established up to the 3-and 5-levels, respectively [4,7,8]. In addition, the a3:Th(~, 2n)Za*U reaction was recently studied by Venema et al [9], who observe the E0 transitions from the fl-vibrational band to the ground-state band.…”

Section: Measurements In 232u and 23~umentioning

confidence: 98%

“…The ground-state and K~=0 -bands in 236U were previously studied up to high spins in radioactivity and Coulomb excitation measurements [7,10]. The excited states of the K~=0 -band are reported to decay predominantly by intraband E2 transitions.…”

Section: Measurements In 236umentioning

confidence: 99%

In-beam spectroscopy of thek ?=0? bands in230?236U

Zeyen

Ackermann

Dämmrich

et al. 1987

Z. Physik A - Atomic Nuclei

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The Ks=0 -bands in even uranium nuclei were studied in the compound reactions 23apa(p, 2n)Z3~ 23~ 2n)Z32'z34u and 2a6U(d, pn)Z36U. In-beam y-rays were measured in coincidence with conversion-electrons, which were detected with an iron-free orange spectrometer. The negative-parity levels are observed up to intermediate spins (I<13-). In addition, the 1-and 3-levels in 23~ were confirmed by a decay study with an isotope separated 23~ source. For the heavier isotopes (A > 232) the properties of the K~= 0-bands (energies and 7-branchings) are consistent with a vibrational character of these bands. For 23~ the K s= 0-band lies at rather low energy (E(1-) = 367 keV), and the level spacings within this band are very similar to those of the isotones 228Th and 226Ra, which might indicate the onset of a stable octupole deformation.

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“…The absolute coincidence efficiency was derived from pure Coulomb excitation data, obtained by bombarding the 232Th target with 413 MeV 9~ projectiles. The accuracy of this calibration is mainly limited by the precision of the matrix elements [16] entering the Coulomb excitation calculations, which were performed employing the semiclassical Winther-de Boer code [17]. The absolute uncertainty of the calculated yields of the yrast transitions used (U=4 + ... 14 +) was estimated to be <20%.…”

Section: Experimental Methods and Data Analysis Techniquesmentioning

confidence: 99%