A laser ion source for on-line mass separation

Duppen, P. Van; Dendooven, P.; Huyse, M.; Vermeeren, L.; Qamhieh, Z. N.; Silverans, R. E.; Vandeweert, Erno

doi:10.1007/bf02398629

Cited by 21 publications

(11 citation statements)

References 12 publications

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“…A laser ion source based on a gas cell has been proposed by van Duppen and coworkers [88] and demonstrated at the Leuven Isotope Separator on-line (LISOL) [89,90]. A development of an on-line gas-cell laser ion source is going on at Jyväskylä [91] and is also foreseen at RIKEN (Rikagaku Kenkyusho, Institute of Physical and Chemical Research, Japan) [92] and for the next-generation facility FAIR at GSI Darmstadt (Facility for Antiproton and Ion Research).…”

Section: Collinear Laser Spectroscopy (Cls)mentioning

confidence: 99%

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: Collinear Laser Spectroscopy (Cls)mentioning

confidence: 99%

Precision atomic physics techniques for nuclear physics with radioactive beams

Blaum¹,

Dilling²,

2013

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“…This method has been proposed in 1992 [4] and subsequently intensively studied (first at LISOL) and developed [5][6][7][8][9][10][11][12][13]. Known as In-Gas Laser Ionization and Spectroscopy (IGLIS), it is based on stopping of nuclear reaction products in a gas cell and subsequent selective resonance laser ionization [5][6][7][8][9][10][11][12][13].…”

Section: Experimental Methodsmentioning

confidence: 99%

Production and investigation of heavy neutron rich nuclei

et al. 2017

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Abstract.A project devoted to the production and study of neutron rich heavy nuclei (GALS -project) is being realized at Flerov Laboratory for Nuclear Reactions (FLNR) -JINR. GALS is planned to exploit available beams from the U-400M cyclotron in low energy multi-nucleon transfer reactions to study exotic neutronrich nuclei located in the "north-east" region of nuclear map. Products from 4.5 to 9 MeV/nucleon heavy-ion collisions, such as 136 Xe on 208 Pb, are to be captured in a gas cell and selectively laser-ionized in a sextupole (quadrupole) ion guide extraction system.

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“…Such method has been proposed by Van Duppen et al [4] in 1992 and subsequently intensively studied (first at LISOL) and developed [5][6][7][8][9][10][11][12][13]. Known as In-Gas Laser Ionization and Spectroscopy (IGLIS), it is based on stopping of nuclear reaction products in a gas cell and subsequent selective resonance laser ionization [5][6][7][8][9][10][11][12][13].…”

Section: Experimental Stagementioning

confidence: 99%

GALS - setup for production and study of multinucleon transfer reaction products: present status

Zemlyanoy

Zagrebaev

Козулин

et al. 2016

J. Phys.: Conf. Ser.

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Abstact. This is a brief report on the current status of the new GAs cell based Laser ionization Setup (GALS) at Flerov Laboratory for Nuclear Reactions (FLNR) -JINR, Dubna. GALS is planned to exploit available beams from the U-400M cyclotron in low energy multi-nucleon transfer reactions to study exotic neutron-rich nuclei located in the "north-east" region of nuclear map. Products from 4.5 to 9 MeV/nucleon heavy-ion collisions, such as 136 Xe on 208 Pb, are to be captured in a gas cell and selectively laser-ionized in a sextupole (quadrupole) ion guide extraction system. PACS: 25.60.Je, 28.60.+s, 42.62.Fi IntroductionThe heavy neutron rich nuclei in the "north-east" part of the nuclide chart are from extremely importance for nuclear physics investigations, especially for the understanding of astrophysical nucleosynthesis and rprocess. The closed neutron shell N = 126-the so called last "waiting point" for the r-process-is located just in this region (figure 1). Neutron shell N = 126 is a classical shell closures for nuclei along the line of stability. However, as one moves away from the line of stability, abrupt changes in nuclear structure can arise. Especially, appearance of new magic numbers and/or disappearance of traditional ones as well as the onset of deformation are expected, as e.g. already observed in the region of lighter nuclei. Study of the structural properties of nuclei along the neutron shell N = 126 could contribute to the current discussion about the quenching of shell gaps in nuclei with large neutron excess. A creation and launch of this facility will open a new field of research in low-energy heavy-ion physics, and new horizons in the study of unexplored "north-east" area of the nuclear map. It could be helpful also for finding a new way for the production of heavy and superheavy nuclei.

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A laser ion source for on-line mass separation

Cited by 21 publications

References 12 publications

Precision atomic physics techniques for nuclear physics with radioactive beams

Precision atomic physics techniques for nuclear physics with radioactive beams

Production and investigation of heavy neutron rich nuclei

GALS - setup for production and study of multinucleon transfer reaction products: present status

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