Ramsey technique applied in a Penning trap mass spectrometer

Bollen, G.; Kluge, H.‐J.; Otto, Th.; Savard, G.; Stolzenberg, H.

doi:10.1016/0168-583x(92)95971-s

Cited by 65 publications

(45 citation statements)

References 12 publications

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“…A quadrupole rf drive is then applied to convert the initial, low frequency (∼kHz) magnetron motion into high frequency (∼MHz) reducedcyclotron motion, resulting in an increase in the rotational energy of the ions. This is done using either a single rf pulse (traditional TOF-ICR [37,38]) or with a two-pulse sequence (Ramsey TOF-ICR [39][40][41]), that enables a factor of ∼3 increase in precision over the traditional TOF-ICR measurement in the same amount of time.…”

Section: Experimental Methodsmentioning

confidence: 99%

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Precise determination of theCd113fourth-forbidden non-uniqueβ-decayQvalue

et al. 2016

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Using Penning trap mass spectrometry, we have performed a precise determination of the Q value for the highly-forbidden β-decay of 113 Cd. An independent measurement of the Q value fixes the endpoint energy in a fit to the 113 Cd β-decay spectrum. This provides a strong test of systematics for detectors that have observed this decay, such as those developed for ββ-decay searches in cadmium and other isotopes. It will also aid in the theoretical description of the β-decay spectrum. The result, Q β = 323.89(27) keV, agrees at the 1.3σ level with the value obtained from the 2012 Atomic Mass Evaluation [Chin. Phys. C 36, 1603], but is a factor of almost four more precise. We also report improved values for the atomic masses of 113 Cd, 113 In and 112 Cd.

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Section: Experimental Methodsmentioning

confidence: 99%

“…3 (a). The Ramsey excitation scheme results in an interference pattern [39][40][41]. A Ramsey resonance for 113 In + from this work, where a 300-900-300 ms on-off-on excitation pattern was used, is shown in Fig.…”

Section: Experimental Methodsmentioning

confidence: 99%

Precise determination of theCd113fourth-forbidden non-uniqueβ-decayQvalue

et al. 2016

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“…The ions of interest were then excited by applying a quadrupolar RF electric field at a frequency near the cyclotron frequency of the ion [14]. A Ramsey excitation scheme [15,16] was employed with two 150 ms long RF excitation pulses separated by 450 ms long wait time. The ions were then ejected from the trap and directed to a multi-channel plate (MCP) detector where the TOF was recorded.…”

Section: Experiments Descriptionmentioning

confidence: 99%

Determination of the direct double-β-decayQvalue ofZr96and atomic masses of
Gulyuz
¹
,
Ariche
²
,
Bollen
³

et al. 2015
Phys. Rev. C
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Determination of the direct double-β decay Q value of 96 Zr and atomic masses of [90][91][92]94,96 Experimental searches for the neutrinoless double-β decay offer one of the best opportunities to look for physics beyond the Standard Model. Detecting this decay would confirm the Majorana nature of the neutrino, and a measurement of its half-life can be used to determine the absolute neutrino mass scale. Important to both tasks is an accurate knowledge of the Q value of the double-β decay. The LEBIT Penning trap mass spectrometer was used for the first direct experimental determination of the 96 Zr double-β decay Q value: Q ββ = 3355.85 (15) keV. This value is nearly 7 keV larger than the 2012 atomic mass evaluation [Chin. Phys. C 36, 1603 (2012)

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“…The Ramsey TOF-ICR technique was suggested more than 20 years ago [35] as a possible way to improve the precision of nuclear mass determinations. The prerequisite for the Ramsey method is an understanding of the observed TOF cyclotron resonance curves using time-separated oscillatory fields.…”

Section: The Achievable Relative Precision Of Pmts With the Tof-icr Tmentioning

confidence: 99%

Toward precision mass measurements of neutron-rich nuclei relevant to r-process nucleosynthesis

et al. 2015

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The open question of where, when, and how the heavy elements beyond iron enrich our Universe has triggered a new era in nuclear physics studies. Of all the relevant nuclear physics inputs, the mass of very neutron-rich nuclides is a key quantity for revealing the origin of heavy elements beyond iron. Although the precise determination of this property is a great challenge, enormous progress has been made in recent decades, and it has contributed significantly to both nuclear structure and astrophysical nucleosynthesis studies. In this review, we first survey our present knowledge of the nuclear mass surface, emphasizing the importance of nuclear mass precision in r-process calculations. We then discuss recent progress in various methods of nuclear mass measurement with a few selected examples. For each method, we focus on recent breakthroughs and discuss possible ways of improving the weighing of r-process nuclides.

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Ramsey technique applied in a Penning trap mass spectrometer

Cited by 65 publications

References 12 publications

Precise determination of theCd113fourth-forbidden non-uniqueβ-decayQvalue

Precise determination of theCd113fourth-forbidden non-uniqueβ-decayQvalue

Determination of the direct double-β-decayQvalue ofZr96and atomic masses of
Gulyuz
¹
,
Ariche
²
,
Bollen
³

et al. 2015
Phys. Rev. C
Self Cite

Toward precision mass measurements of neutron-rich nuclei relevant to r-process nucleosynthesis

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Ramsey technique applied in a Penning trap mass spectrometer

Cited by 65 publications

References 12 publications

Precise determination of theCd113fourth-forbidden non-uniqueβ-decayQvalue

Precise determination of theCd113fourth-forbidden non-uniqueβ-decayQvalue

Determination of the direct double-β-decayQvalue ofZr96and atomic masses ofGulyuz1, Ariche2, Bollen3 et al. 2015Phys. Rev. CSelf Cite

Toward precision mass measurements of neutron-rich nuclei relevant to r-process nucleosynthesis

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Product

Resources

About

Determination of the direct double-β-decayQvalue ofZr96and atomic masses of
Gulyuz
¹
,
Ariche
²
,
Bollen
³

et al. 2015
Phys. Rev. C
Self Cite