The recoil separator Lohengrin: Performance and special features for experiments

Armbruster, P.; Asghar, M. I.; Bocquet, J. P.; Decker, R.; Ewald, H.; Greif, J.; Moll, Η.; Pfeiffer, B.; Schrader, H.; Schüßler, F.; Siegert, G.; Wöllnik, H.

doi:10.1016/0029-554x(76)90677-7

Cited by 75 publications

(39 citation statements)

References 15 publications

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“…The La-isotopes were not available directly from this source but were obtained as daughter products in the decay of the Ba-nuclei. The neutron-rich Prisotopes cannot be produced with this ion source with sufficient intensity; therefore they were investigated at the LOHENGRIN mass separator [4]. At both separators, a tape transport system brought the nuclei into the measuring position between a Ge(I)-detector and a plastic scintillator telescope [5].…”

Section: Introductionmentioning

confidence: 99%

Beta decay energies and nuclear masses of148Ba,148La and151Pr

Graefenstedt

Jürgens

Keyser

et al. 1990

Z. Physik A - Atomic Nuclei

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The fl-decay energy of the neutron-rich isotopes 148Ba, 14SLa and ~5~pr has been measured at the Institute Laue-Langevin (ILL). The t4aBa-and ~48La-nuclei were produced using a high-temperature ion source at the OSTIS separator of this institute, whereas samples of ~51pr were obtained from the thermal fission of 239pu, used as a target in the mass separator LOHENGRIN. At both instruments, fiT-coincidences were measured with a plastic scintillator telescope and a Ge(I)-detector, together with//-singles and 7-singles spectra. The//-spectra emitted in coincidence with 44~)-lines in the decay of these nuclei have been evaluated. From their endpoint energies, the following Qa-values have been obtained: Qa(lgSBa) = 5115_ 60 keV; Qp(14SLa) = 7255_ 55 keV; Qp(~5 tPr)= 4170 +_ 75 keV. Using these results, the nuclear masses A of these nuclei can be calculated with a relative error AA/A~-5.10 -7. In addition, the two-neutron separation energies and the mass excesses have been derived; the results are compared with recent predictions of theoretical mass calculations.

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Section: Introductionmentioning

confidence: 99%

Beta decay energies and nuclear masses of148Ba,148La and151Pr

Graefenstedt

Jürgens

Keyser

et al. 1990

Z. Physik A - Atomic Nuclei

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“…The Lohengrin mass spectrometer [4] is a nuclear physics instrument from the ILL research reactor facility which allows to study fragment distributions from thermal neutron induced fission with a very good resolution. A fissile actinide target is placed close to the reactor core, in a thermal neutron flux reaching 5 × 10 14 neutron.cm −2 .s −1 .…”

Section: Experimental Setup: the Lohengrin Spectrometermentioning

confidence: 99%

²³³U mass yield measurements around and within the symmetry region with the ILL Lohengrin spectrometer

Chebboubi

Kessedjian

Sage

et al. 2016

EPJ Web of Conferences

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Abstract. The study of fission yields has a major impact on the characterization and understanding of the fission process and is mandatory for reactor applications. The LPSC in collaboration with ILL and CEA has developed a measurement program on fission fragment distributions at the Lohengrin spectrometer of the ILL, with a special focus on the masses constituting the heavy peak. We will present in this paper our measurement of the very low fission yields in the symmetry mass region and the heavy mass wing of the distribution for 233 U thermal neutron induced fission. The difficulty due to the strong contamination by other masses with much higher yields will be addressed in the form of a new analysis method featuring the required contaminant correction. The apparition of structures in the kinetic energy distributions and possible interpretations will be discussed, such as a possible evidence of fission modes.

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“…The recoil fission product separator LOHENGRIN installed at the Grenoble High Flux Reactor was designed to analyze fission fragments according to their masslcharge and kinetic energykharge ratios (Armbruster et al, 1976). It is particularly well-suited to investigate nuclear charge distributions.…”

Section: F On-line Mass Spectrometrymentioning

confidence: 99%

The role of off-line mass spectrometry in nuclear fission

Laeter

1996

Mass Spectrom. Rev.

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The recoil separator Lohengrin: Performance and special features for experiments

Cited by 75 publications

References 15 publications

Beta decay energies and nuclear masses of148Ba,148La and151Pr

Beta decay energies and nuclear masses of148Ba,148La and151Pr

²³³U mass yield measurements around and within the symmetry region with the ILL Lohengrin spectrometer

The role of off-line mass spectrometry in nuclear fission

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The recoil separator Lohengrin: Performance and special features for experiments

Cited by 75 publications

References 15 publications

Beta decay energies and nuclear masses of148Ba,148La and151Pr

Beta decay energies and nuclear masses of148Ba,148La and151Pr

233U mass yield measurements around and within the symmetry region with the ILL Lohengrin spectrometer

The role of off-line mass spectrometry in nuclear fission

Contact Info

Product

Resources

About

²³³U mass yield measurements around and within the symmetry region with the ILL Lohengrin spectrometer