Analysis of 236U-fission products by the recoil separator “Lohengrin”

Moll, Η.; Schrader, H.; Siegert, G.; Asghar, M. I.; Bocquet, J. P.; Bailleul, G.; Gautheron, J.P.; Greif, J.; Crawford, G.I.; Chauvin, C.; Ewald, H.; Wöllnik, H.; Armbruster, P.; Fiebig, G.; Lawin, H.; Sistemich, K.

doi:10.1016/0029-554x(75)90219-0

Cited by 116 publications

(32 citation statements)

References 5 publications

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“…LOHENGRIN [9] separates the fission products with a magnetic sector field and an electrostatic cylindrical field according to their mass A, their initial kinetic energy E k and their ionic charge q, along a parabola. The resolution A/AA can be chosen conveniently (of the order of 1000, FWHM) to provide beams of a pure mass at the exit slit of 72cm length and a few mm width.…”

Section: Experiments At Lohengrinmentioning

confidence: 99%

The β-decay of98Y and the level scheme of98Zr

et al. 1977

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A study of the//-decay of 98y and of the level scheme of 98Zr was undertaken by the use of the two recoil fission product separators JOSEF and LOHENGRIN. Two //-decay modes have been detected for 98y, the half-lives of which are 0.65_+ 0.05 s and 2.0_+ 0.2 s. The spins and parities of the two states which undergo//-decay are proposed to be 1 § and 4-, respectively, with the configurations (~ l g9/2)(v l g~/2) and (~2pl/2) (v lg7/2). The measured Qp-value is 7300• for the 0.65s decay. The level scheme of 98Zr was deduced from 7,7-coincidence data. Absolute 7-intensities were obtained from two independent measurements. The half-life of the first excited state of 98Zr at 853.0keV with spin and parity 0 § was determined through delayed 7,e--measurements to be 63 _+Tns. No indication of the coexistence of two different nuclear shapes of 98Zr was found.

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Section: Experiments At Lohengrinmentioning

confidence: 99%

The β-decay of98Y and the level scheme of98Zr

et al. 1977

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“…Therefore the mass resolution is around 4 mass unit (FWHM). With the advent of recoil spectrometers, such as Lohengrin [7] or Hiawatha [8], high-resolution data on isobaric yields are finally reached with an uncertainty below 5%. But still, isotopic identification is limited to the light group, for example Refs.…”

Section: Experimental Limitations Due To Direct Kinematicsmentioning

confidence: 99%

Accurate measurements of fission-fragment yields in^{234,235,236,238}U(γ,f) with the SOFIA set-up

Chatillon

Taïeb

Martin

et al. 2016

EPJ Web of Conferences

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Abstract. SOFIA (Studies On Fission with Aladin) is a new experimental set-up dedicated to accurate measurement of fission-fragments isotopic yields. It is located at GSI, the only place to use inverse kinematics at relativistic energies in order to study the (γ,f) electromagnetic-induced fission. The SOFIA set-up is a large-acceptance magnetic spectrometer, which allows to fully identify both fission fragments in coincidence on the whole fission-fragment range. This paper will report on fission yields obtained in 234,235,236,238 U(γ,f) reactions.

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“…At LOHENGRIN [18] installed at the HFR of the ILL Grenoble, the decay properties of the low-lying states of ~~ were investigated by X-y (t) as well as y-y (t) coincidence measurements using 32 and 70 cm 3 Ge(Li) detectors (energy resolution: 0.75 keV at 122 keV and 2.0 keV at 1333 keV, respectively). The half-life measurements (lower part of Fig.…”

Section: Fission-product Separator Lohengrinmentioning

confidence: 99%

Structure of the Triplet of low-lying states in101Mo

Seyfarth

Güven

Kardon

et al. 1991

Z. Physik A - Hadrons and Nuclei

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The properties of the triplet of low-lying states in l~ have been studied through spectroscopy of the y radiation following thermal neutron capture in ~~176 and fldecay of ~~ and through a measurement of the proton angular distributions in the ~~176 reaction with 14 MeV deuteron energy. The half-lives of the 13.5 keV state and the 57.0 keV 5/2 + state have been measured as 226 (7) and 133(7)ns, respectively. These values and the quadrupole/dipole mixing ratios of the 13.5 keV and 43.5 keV transitions yield spin and parity 3/2 + for the 13.5 keV level. The E2 components in the 13.5 (3/2 + ~1/2 +) and 43.5keV (5/2+--+3/2 +) transitions are "( 8.10 -4 and 54(9)%, respectively. The possibility of an additional state near to the 57.0 keV level is discussed. IBFM/PTQM calculations, taking into consideration the transitional character of the l~176 boson core, account for the electromagnetic-transition and transfer-reaction pattern of the triplet of states.

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Analysis of 236U-fission products by the recoil separator “Lohengrin”

Cited by 116 publications

References 5 publications

The β-decay of98Y and the level scheme of98Zr

The β-decay of98Y and the level scheme of98Zr

Accurate measurements of fission-fragment yields in^{234,235,236,238}U(γ,f) with the SOFIA set-up

Structure of the Triplet of low-lying states in101Mo

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Analysis of 236U-fission products by the recoil separator “Lohengrin”

Cited by 116 publications

References 5 publications

The β-decay of98Y and the level scheme of98Zr

The β-decay of98Y and the level scheme of98Zr

Accurate measurements of fission-fragment yields in234,235,236,238U(γ,f) with the SOFIA set-up

Structure of the Triplet of low-lying states in101Mo

Contact Info

Product

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Accurate measurements of fission-fragment yields in^{234,235,236,238}U(γ,f) with the SOFIA set-up