Development of 207Pb, 208Pb and 209Bi target wheels in the synthesis of 107Ns, 108Hs and 109Mt

Folger, H.; Hartmann, W.; Heβberger, F. P.; Hofmann, S.; Klemm, J.; Münzenberg, G.; Ninov, V.; Schmidt, Karl‐Heinz; Schött, H. J.; Thalheimer, W.; Armbruster, P.

doi:10.1016/0168-9002(93)90529-q

Cited by 16 publications

(2 citation statements)

References 17 publications

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“…5. Conventionally, ID information has been used for a on-line monitoring to check for damage due to evaporation, deterioration, and sputtering, all of which are caused by beamirradiation [4][5][6]. In this study, the ID data was used as a tagging signal to identify each target on the rotating wheel by correlation with evaporation residue.…”

Section: Design and Conceptsmentioning

confidence: 99%

Double-layered target and identification method of individual target correlated with evaporation residues

Kaji

Morimoto

2015

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Design and Conceptsmentioning

confidence: 99%

Double-layered target and identification method of individual target correlated with evaporation residues

Kaji

Morimoto

2015

Nuclear Instruments and Methods in Physics Research Section A:

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“…Self-supporting carbon thin films are used in the heavy-ion beam as targets, as carrying substrate [FOLGER 1993, FOLGER 1995, and as stripper foils. Investigations about the lifetime and for understanding the structural change through the beam must be done on pure carbon films.…”

Section: Introductionmentioning

confidence: 99%

Self-Supporting Carbon Thin Films Used in the Heavy-Ion Beam

Thalheimer¹,

Hartmann²,

Klemm³

et al. 1999

Cryst. Res. Technol.

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Cryst. Res. Technol. 34 1999 2 175-179Self-supporting carbon thin films are needed for the heavy-ion beam at the Gesellschaft für Schwerionenforschung (GSI) as targets, as stripper foils, and as carrying substrates. The thin films are produced through resistance evaporation under high vacuum. Carbon is deposited on a glass plate that is covered with an organic material that is soluble in water. Through dissolving the interlayer a selfsupporting carbon film is obtained, which is fetched on an aluminium frame. Thin films of 5 µg/cm 2 up to 100 µg/cm 2 can be produced with this method. The production process as well as the changing of the layer structure through the energy deposit is going to be discussed.

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Production and decay of269110

Hofmann

Ninov

Heßberger

et al. 1995

Z. Physik A - Hadrons and Nuclei

326

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Abstract. In an experiment carried out to identify element 110, we have observed an ~-decay chain, that can be unambiguously assigned to zagll0. In a series of preexperiments the excitation functions of the fusion reactions S~176 and SSFe+Z~were measured with high precision in order to get the optimum projectile energies for the production of these heavy elements. The cross-section maxima of the In evaporation channels were observed at excitation energies of 15.6 MeV and 13.4 MeV, respectively. These data result in an optimum excitation energy of 12.3 MeV of the compound nucleus for the production of z69110 in the reaction nZNi + z~ + I n. In irradiations at the corresponding beam energy of 311 MeV we have observed a decay chain of 4 subsequent cc decays. This can be assigned to the isotope with the mass number 269 of the element 110 on the basis of delayed c~-~ coincidences. The accurately measured decay data of the daughter isotopes of the elements 108 to 102, obtained in the previous experiments, were used. The isotope z~'9110 decays with a half-life of ~'m+I.~0o,, /~s by emission of (11.1325:0.020) \ ~'"--120/ MeV alpha particles. The production cross-section is +6.2 (3,3_2.7) pb.

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Development of 207Pb, 208Pb and 209Bi target wheels in the synthesis of 107Ns, 108Hs and 109Mt

Cited by 16 publications

References 17 publications

Double-layered target and identification method of individual target correlated with evaporation residues

Double-layered target and identification method of individual target correlated with evaporation residues

Self-Supporting Carbon Thin Films Used in the Heavy-Ion Beam

Production and decay of269110

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