<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>β</mml:mi></mml:math>-Delayed Neutron Spectroscopy Using Trapped Radioactive Ions

Yee, Ryan; Scielzo, N. D.; Bertone, P. F.; Buchinger, F.; Caldwell, S.; Clark, J. A.; Deibel, C. M.; Fallis, J.; Greene, J. P.; Gulick, S.; Lascar, D.; Levand, A. F.; Li, G.; Norman, E. B.; Pedretti, M.; Savard, G.; Segel, R. E.; Sharma, K. S.; Sternberg, M.; Schelt, J. Van; Zabransky, B. J.

doi:10.1103/physrevlett.110.092501

Cited by 31 publications

(15 citation statements)

References 53 publications

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“…The resulting β-delayed neutron intensity spectrum per 100 keV vs. neutron energy is presented in the inset of figure 12. The shape of the neutron intensity spectrum agrees well with the detailed experimental studies [20,21].…”

Section: β-Delayed Neutronssupporting

confidence: 86%

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Modular total absorption spectrometer

Karny

Rykaczewski

Fijałkowska

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

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The active volume of the detector is approximately one ton of NaI(Tl), which results in very high full γ energy peak efficiency of 71% at 6 MeV and nearly flat efficiency of around 81.5 % for low energy γ-rays between 300 keV and 1 MeV. In addition to the high peak efficiency, the modular construction of the detector permits the use of a γ-coincidence technique in data analysis as well as β-delayed neutron observation.

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Section: β-Delayed Neutronssupporting

confidence: 86%

“…The MTAS spectrum of 137 I decay (black) with the simulated response function of MTAS to the β-delayed neutrons (yellow -all βn neutrons, other colours -mono energetic neutrons). Inset shows the resulting neutron intensity per 100 keV vs. neutron energy (red) in comparison to the literature data based on[20] (blue).…”

mentioning

confidence: 99%

Modular total absorption spectrometer

Karny

Rykaczewski

Fijałkowska

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

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“…The concept of observing decays from trapped radioactive species has been employed for years, most notably using magneto-optical traps (MOTs) and Paul traps, where charged particles and daughter recoils are detected to provide direct and indirect information about neutrinos [11][12][13][14][15], electrons [16], and neutrons [17]. More recently, Penning traps have been considered to provide control over the decay environment [7,18,19], where charged particles can be directed along the magnetic field lines.…”

Section: In-trap Decay Studiesmentioning

confidence: 99%

In-Trap Spectroscopy of Charge-Bred Radioactive Ions

et al. 2014

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A novel in-trap decay spectroscopy facility has been developed and constructed for use with TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This apparatus consists of an open-access spectroscopy ion-trap, which is surrounded radially with up to seven low-energy planar Si(Li) detectors. The ion-trap environment allows for the detection of low-energy photons by providing backing-free storage of the radioactive ions, while guiding decay particles from the trap center via the strong (up to 6 T) magnetic field. Excellent ion confinement is also facilitated by the use of an intense electron beam which provides storage times of minutes or more without ion loss. These advantages, along with careful monitoring and control, provide a significant increase in sensitivity for the detection of X-rays from the electron-capture process. The design, development, and commissioning of this apparatus are presented and the future of the device and experimental technique are discussed.Keywords: in-trap decay spectroscopy, electron capture, beta-decay of highly-charged ions, X-ray detection, electron-beam ion trap, nuclear matrix elements, double beta decay

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“…Therefore, there are several world-wide campaigns to bridge this data gap, mostly by counting β-delayed emission n-β coincidence events [29]. Other proposed methods count the recoil nuclides via gamma spectra [30], time-of-flight [31] or particle detectors in a storage ring [32].…”

Section: Measurement Of β-Delayed Neutron Emission Probabilitiesmentioning

confidence: 99%

The science case of the FRS Ion Catcher for FAIR Phase-0

et al. 2019

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The FRS Ion Catcher at GSI enables precision experiments with thermalized projectile and fission fragments. At the same time it serves as a test facility for the Low-Energy Branch of the Super-FRS at FAIR. The FRS Ion Catcher has been commissioned and its performance has been characterized in five experiments with 238 U and 124 Xe projectile and fission fragments produced at energies in the range from 300 to 1000 MeV/u. High and almost element-independent efficiencies for the thermalization of short-lived nuclides produced at relativistic energies have been obtained. High-accuracy mass measurements of more than 30 projectile and fission fragments have been performed with a multiple-reflection time-offlight mass spectrometer (MR-TOF-MS) at mass resolving powers of up to 410,000, with production cross sections down to the microbarn-level, and at rates down to a few ions per hour. The versatility of the MR-TOF-MS for isomer research has been demonstrated by the measurement of various isomers, determination of excitation energies and the production of a pure isomeric beam. Recently, several instrumental upgrades have been implemented at the FRS Ion Catcher. New experiments will be carried out during FAIR Phase-0 at GSI, including direct mass measurements of neutron-deficient nuclides below 100 Sn and neutronrich nuclides below 208 Pb, measurement of β-delayed neutron emission probabilities and reaction studies with multi-nucleon transfer.

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β-Delayed Neutron Spectroscopy Using Trapped Radioactive Ions

Cited by 31 publications

References 53 publications

Modular total absorption spectrometer

Modular total absorption spectrometer

In-Trap Spectroscopy of Charge-Bred Radioactive Ions

The science case of the FRS Ion Catcher for FAIR Phase-0

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