Sub-nanosecond lifetime measurements using the Double Orange Spectrometer at the cologne 10MV Tandem accelerator

Régis, J.‐M.; Materna, T.; Christen, Stephan; Bernards, C.; Braun, N.; Breuer, G. D.; Fransen, C.; Heinze, Stefan; Jolie, J.; Meersschaut, T.; Pascovici, G.; Rüdigier, M.; Steinert, Lea-Marina; Thiel, Stefan; Warr, N.; Zell, K. O.

doi:10.1016/j.nima.2009.04.008

Cited by 26 publications

(18 citation statements)

References 8 publications

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“…The contaminant coincidence intensity from 176 W in the 174 W measurement amounts about 5 % of the coincidence intensity of interest in 174 W. The 2 + 1 lifetime in 176 W is known to be 1.431(9) ns [6]. This differs by less than 100 ps from the lifetime obtained from the present data and the systematic error induced by the contaminant coincidenc is estimated to be below 5 ps.…”

Section: Resultscontrasting

confidence: 50%

“…The present data and other measure- [5], was inadvertently omitted in Ref. [21] ments by the Cologne group since 2010 [6][7][8] now allow one to fill in the missing values and correct some previous results, resolving the dilemma. For Hf, the oscillations in the earlier data are now replaced by a smooth upward trend with decreasing neutron number, along with a sharp drop for the lowest neutron number where data are available.…”

Section: Discussionmentioning

confidence: 96%

“…[5] for 170 Hf) and (b) using that value, the values from this work, and from Refs. [6][7][8]. These recent data are marked by points with open frames.…”

Section: Discussionmentioning

confidence: 99%

“…However, recent measurements of 2 + 1 lifetimes in the Hf and W isotopes [5][6][7][8] found large discrepancies to literature values, and gave rise to the need for new, highprecision measurements of the lifetimes involved. In the present work, we measured 2 In addition, an HPGe detector was used in order to obtain a high-resolution spectrum.…”

Section: Properties Of the First Excitedmentioning

confidence: 96%

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Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

et al. 2016

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The B(E2) excitation strength of the first excited 2 + state in even-even nuclei should directly correlate to the size of the valence space and maximize at mid-shell. A previously found saturation of B(E2) strengths in well-deformed rotors at mid-shell is tested through high-precision measurements of the lifetimes of the lowest-lying 2 + states of the 168 Hf and 174 W rare earth isotopes. Measurements were performed using fast LaBr3 scintillation detectors. Combined with the recently re-measured B(E2; 2

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Section: Resultscontrasting

confidence: 50%

Section: Discussionmentioning

confidence: 96%

“…[5] for 170 Hf) and (b) using that value, the values from this work, and from Refs. [6][7][8]. These recent data are marked by points with open frames.…”

Section: Discussionmentioning

confidence: 99%

Section: Properties Of the First Excitedmentioning

confidence: 96%

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Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

et al. 2016

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“…This new type of Mini-Orange spectrometer (MOS) [1][2][3][4] meet the requirements for in-beam measuring conversion electrons due to its advantages of wide energy range, high transmission efficiency, high energy resolution, and easy operation. The MOS has been constructed for a long time and used to measure conversion electrons [5][6][7][8][9][10][11]. Before the present work, however, there is no any MOS has been built and used in nuclear spectroscopy experiments in China.…”

Section: Introductionmentioning

confidence: 99%

Mini-orange spectrometer at CIAE

Zheng¹,

Wu²,

Li³

et al. 2016

Chinese Phys. C

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A Mini-Orange spectrometer used for in-beam measurements of internal conversion electrons, which consists of a Si(Li) detector and different sets of SmO5 permanent magnets for filtering and transporting the conversion electrons to the Si(Li) detector, has been developed at China Institute of Atomic Energy. The working principle and configuration of the Mini-Orange spectrometer are described. The performance of the setup is illustrated by measured singles conversion electron spectra using the Mini-Orange spectrometer.

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The mirror symmetric centroid difference method for picosecond lifetime measurements via γ–γ coincidences using very fast LaBr3(Ce) scintillator detectors

Régis

Pascovici

Jolie

et al. 2010

Nuclear Instruments and Methods in Physics Research Section A:

105

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Sub-nanosecond lifetime measurements using the Double Orange Spectrometer at the cologne 10MV Tandem accelerator

Cited by 26 publications

References 8 publications

Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

Mini-orange spectrometer at CIAE

The mirror symmetric centroid difference method for picosecond lifetime measurements via γ–γ coincidences using very fast LaBr3(Ce) scintillator detectors

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