Photoelectron spectroscopy of heterocycles: Ortho-disubstituted quinoxalines

Kluge, G.; Kania, G.; Achenbach, Frank; Lippmann, Eberhard; Novak, Igor; Klasinc̆, L.

doi:10.1002/qua.560240733

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…On resonance the metastable state is depopulated by pumping it into the ground state and the decreased population is probed by state selective ionization in a second gas cell. Recording the ratio of ions and atoms as a function of Doppler-tuning voltage results in spectra like the one shown on the bottom for 28 Ne. This spectrum was taken with a yield of only 50 atoms per proton pulse at ISOLDE, i.e., about 25 atoms/s.…”

Section: Neonmentioning

confidence: 90%

Precision atomic physics techniques for nuclear physics with radioactive beams

Blaum¹,

Dilling²,

2013

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Atomic physics techniques for the determination of ground-state properties of radioactive isotopes are very sensitive and provide accurate masses, binding energies, Q-values, charge radii, spins, and electromagnetic moments. Many fields in nuclear physics benefit from these highly accurate numbers. They give insight into details of the nuclear structure for a better understanding of the underlying effective interactions, provide important input for studies of fundamental symmetries in physics, and help to understand the nucleosynthesis processes that are responsible for the observed chemical abundances in the Universe. Penning-trap and and storage-ring mass spectrometry as well as laser spectroscopy of radioactive nuclei have now been used for a long time but significant progress has been achieved in these fields within the last decade. The basic principles of laser spectroscopic investigations, Penning-trap and storage-ring mass measurements of short-lived nuclei are summarized and selected physics results are discussed. † going to cryogenic temperatures, or enhancing the induced signal by using higher charge states and/or longer accumulation times. Ideal applications for this method are mass measurements of super-heavy element (SHE) isotopes for nuclear structure studies as they are performed at SHIPTRAP [25,26]. SHE are produced in minuscule quantities, and typically have half-lives of hundreds of milliseconds to a few seconds. A proof-ofprinciple experiment is planned at the TRIGA reactor facility TRIGA-TRAP at Mainz University [27] and applications for HITRAP with highly charged ions are foreseen [28]. Requirements for Mass Measurements of Radioactive IonsThe specific requirements for the mass measurements of radioactive ions stem from the parameters of the ions themselves. For example the required sensitivity (depending on the production yield) and measurement speed (depending on the half-life) as well as the envisaged application which dictates the required precision. In order to be meaningful, all measurements should deliver reliable data, hence precise and accurate. The physics requirements can be categorized with the corresponding relative precision as follows:• nuclear structure, δm/m ≈ 1 × 10 −7• nuclear astrophysics, δm/m ≈ 1 × 10 −7/−8 • test of fundamental symmetries, neutrino physics, δm/m ≈ 1 × 10 −8/−9

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Section: Neonmentioning

confidence: 90%

Precision atomic physics techniques for nuclear physics with radioactive beams

Blaum¹,

Dilling²,

2013

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“…The available beam energies are from about 400 MeV/u-typical injection energy-down to about 4 MeV/u. The latter is the extraction energy towards the external HI-TRAP setup [28]. Stored and cooled exotic beams in the energy range of a few MeV/u will also be available once the storage ring project [29] at ISOLDE [30] at CERN, Geneva is realised.…”

Section: Introductionmentioning

confidence: 99%

Nuclear physics experiments with ion storage rings

Litvinov

Bishop

Blaum

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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In the last two decades a number of nuclear structure and astrophysics experiments were performed at heavy-ion storage rings employing unique experimental conditions offered by such machines. Furthermore, building on the experience gained at the two facilities presently in operation, several new storage ring projects were launched worldwide. This contribution is intended to provide a brief review of the fast growing field of nuclear structure and astrophysics research at storage rings

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Photoelectron spectroscopy of heterocycles: Ortho-disubstituted quinoxalines

Cited by 2 publications

References 19 publications

Precision atomic physics techniques for nuclear physics with radioactive beams

Precision atomic physics techniques for nuclear physics with radioactive beams

Nuclear physics experiments with ion storage rings

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