Measurement of β− end-point energies using a Ge detector with Monte Carlo generated response functions

Greenwood, R. C.; Putnam, M.H.

doi:10.1016/0168-9002(93)91142-a

Cited by 24 publications

(9 citation statements)

References 31 publications

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“…153 Nd: There is only one previous mass measurement of this neodymium isotope, a β-endpoint measurement of Q β = 3.336 (25) MeV [67], which agrees with our result of 3.306 (23) MeV.…”

Section: Discussion By Nuclidesupporting

confidence: 89%

“…155 Nd: There is also only a single previous measurement of this isotope, a β-endpoint measurement [67] that was discarded by the AME03 due to severe disagreement with systematic trends. That measurement was part of the same experiment as the accurate 153 Nd measurement, above.…”

Section: Discussion By Nuclidementioning

confidence: 99%

“…6 shows a comparison between the seven nuclides measured by both traps, and there is no evidence of any systematic or isolated differences, with χ 2 /6 = 0.9. On average, the reported ISOLTRAP masses are 0.61 (67) masses.…”

Section: Penning Trapsmentioning

confidence: 98%

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Mass measurements near ther-process path using the Canadian Penning Trap mass spectrometer

et al. 2012

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The masses of 40 neutron-rich nuclides from Z = 51 to 64 were measured at an average precision of δm/m = 10 −7 using the Canadian Penning Trap mass spectrometer at Argonne National Laboratory. The measurements, of fission fragments from a 252 Cf spontaneous fission source in a helium gas catcher, approach the predicted path of the astrophysical r process. Where overlap exists, this data set is largely consistent with previous measurements from Penning traps, storage rings, and reaction energetics, but large systematic deviations are apparent in β-endpoint measurements. Differences in mass excess from the 2003 Atomic Mass Evaluation of up to 400 keV are seen, as well as systematic disagreement with various mass models.

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“…153 Nd: There is only one previous mass measurement of this neodymium isotope, a β-endpoint measurement of Q β = 3.336 (25) MeV [67], which agrees with our result of 3.306 (23) MeV.…”

Section: Discussion By Nuclidesupporting

confidence: 89%

Section: Discussion By Nuclidementioning

confidence: 99%

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Mass measurements near ther-process path using the Canadian Penning Trap mass spectrometer

et al. 2012

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“…The determined mass-excess value of 154 Nd, −65601(25) keV, is based on three consistent individual frequency ratios measured with 200 ms quadrupolar excitation in the precision trap. In AME16, the mass of 154 Nd is based on beta-decay end-point energies of 154 Nd [60] and 154 Pm [61][62][63] connecting the isobaric chain to 154 Sm for which the mass has been directly measured [64]. The mass-excess value obtained in this work for 154 Nd is 225 keV higher than the AME16 value [20].…”

Section: Ndmentioning

confidence: 93%

Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP

et al. 2020

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The JYFLTRAP double Penning trap at the Ion Guide Isotope Separator On-Line (IGISOL) facility has been used to measure the atomic masses of 13 neutron-rich rare-earth isotopes. Eight of the nuclides, 161 Pm, 163 Sm, 164,165 Eu, 167 Gd, and 165,167,168 Tb, were measured for the first time. The systematics of the mass surface has been studied via one-and two-neutron separation energies as well as neutron pairing-gap and shell-gap energies. The proton-neutron pairing strength has also been investigated. The impact of the new mass values on the astrophysical rapid neutron capture process has been studied. The calculated abundance distribution results in a better agreement with the solar abundance pattern near the top of the rare-earth abundance peak at around A ≈ 165.

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“…The largest deviations between the new JYFLTRAP mass values and AME16 were found for 154 Nd, 220(60) keV, and 156 Nd, 260(200) keV. Both mass values have been previously based on beta-decay end-point energies[45,46] which tend to underestimate the Q values, and thus the masses. Indeed, the JYFLTRAP mass value for 154 Nd agrees with the recent mass value from the Canadian Penning Trap (CPT)…”

mentioning

confidence: 83%

Recent experiments at the JYFLTRAP Penning trap

et al. 2020

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The JYFLTRAP double Penning trap mass spectrometer at the Ion Guide Isotope Separator On-Line (IGISOL) facility offers excellent possibilities for high-precision mass measurements of radioactive ions. Around 400 atomic masses, including around 50 isomeric states, have been measured since JYFLTRAP became operational. JYFLTRAP has also been used as a high-resolution mass separator for decay spectroscopy experiments as well as an ion counter for fission yield studies. In this contribution, an overview of recent activities at the JYFLTRAP Penning trap is given, with a focus on nuclei discussed in the PLATAN2019 meeting.

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Measurement of β− end-point energies using a Ge detector with Monte Carlo generated response functions

Cited by 24 publications

References 31 publications

Mass measurements near ther-process path using the Canadian Penning Trap mass spectrometer

Mass measurements near ther-process path using the Canadian Penning Trap mass spectrometer

Exploring the mass surface near the rare-earth abundance peak via precision mass measurements at JYFLTRAP

Recent experiments at the JYFLTRAP Penning trap

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