New transitions and precise energy and intensity determinations in the decay of 177mLu

Haverfield, A.J.; Bernthal, F.M.; Hollander, J.M.

doi:10.1016/0375-9474(67)90008-5

Cited by 41 publications

(6 citation statements)

References 20 publications

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“…The intensities of γ transitions with energies of 69 and 88 keV were measured using an anticompton Ge(Li) spectrometer and high resolution Ge(Li) detectors [19,20], and were 0.088 ± 0.030 (69 keV) and 0.32 ± 0.08 rel. units (88 keV).…”

Section: Intensities Of Gamma Rays From 177m Lu Decaymentioning

confidence: 99%

Studying the low-energy region of the 177m Lu gamma spectrum

Lashko

Savrasov

et al. 2014

Bull. Russ. Acad. Sci. Phys.

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High precision measurements of the relative intensities of KX and γ rays associated with the decay of the isomer state in 177 Lu (T 1/2 = 160.44 days) are performed using a γ spectrometer that incorporates four different types of semiconductor detectors. Detailed analysis of the balance of intensities of the excited levels in 177 Lu and 177 Hf confirms the consistency of the obtained data. The intensities of the γ and βdecay branches of the isomer and the internal conversion coefficients of the K forbidden transitions are determined.

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Section: Intensities Of Gamma Rays From 177m Lu Decaymentioning

confidence: 99%

Studying the low-energy region of the 177m Lu gamma spectrum

Lashko

Savrasov

et al. 2014

Bull. Russ. Acad. Sci. Phys.

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“…The central panel of Fig. 15 represents the 208 keV 177 Lu → 177 Hf transition [44,45] measured by the TAS coincidence with 113 keV ␥ rays recorded in the small Ge detector, while the upper panel shows the 1080 keV transition in the decay of 177 Yb→ 177 Lu [38] observed in the TAS when gated by the 150 keV events from the Ge detector. These two examples illustrate how individual ␥-ray peaks appear in the TAS spectra.…”

Section: B Tas Experimentsmentioning

confidence: 99%

Evidence for a high-spinβ-decaying isomer inLu177

et al. 2004

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Nuclei in the A ϳ 180 region have been populated and investigated in a series of multinucleon transfer and deep-inelastic reactions involving an 11.4 MeV per nucleon 136 Xe beam produced by the GSI UNILAC accelerator, impinging on a selection of tantalum and tungsten targets. The reaction products were released from a thermal ion source and subsequently mass selected using the GSI on-line mass separator. The unexpectedly high yield of ␥ rays associated with the decay of the well established K =37/2 − ,t 1/2 = 51.4 min isomer in 72 177 Hf and anomalous half-life characteristics associated with this decay lead to these data being interpreted as the ␤ − decay of a high-K isomer in the mother nucleus, 177 Lu. By comparing the experimental findings with the predictions obtained from multi-quasiparticle blocked-BCS-Nilsson calculations, the proposed decay is suggested to be from a K =39/2 − five-quasiparticle state in 71 177 Lu. A half-life of 7 ± 2 min is determined for this ␤-decay path which is estimated to have an excitation energy of Ϸ3.9 MeV above the 177 Lu ground state.

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“…Few lifetimes of excited states in 177 Hf were known and transition strengths were determined from measured intensity ratios under the assumption of constant quadrupole moment. A variety of different B(E 1) transition strengths are found in the literature [2][3][4]6,7].…”

Section: Introductionmentioning

confidence: 99%

“…The rotational structure of 177 Hf, arising from the decay of 177m Lu, has been studied extensively in the past [1][2][3][4][5][6]. Two rotational bands with opposing parity are populated at relatively high spin and decay via a complex combination of interand intraband transitions [2].…”

Section: Introductionmentioning

confidence: 99%