NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = D.Hirdes Found 6 matches. 1983FA03 Nucl.Instrum.Methods 206, 317 (1983) R.Fass, P.Lemmertz, L.J.Alquist, H.Wollnik, D.Hirdes, H.Jungclas On-Line Mass Determination of α-Active Products from the Reaction (nat)U + 208Pb with a Gas Jet Time-of-Flight Mass Spectrometer NUCLEAR REACTIONS U, Ar(208Pb, αX)150Dy/151Dy/152Dy/151Ho/152Ho/152mHo/159Hf/155Yb/163W/159Ta/209At/207At/211At/217At/216At/215At/225Ac/192Bi/211Bi/212Bi/212mBi/218Po/217Po/216Po/211Po/211mPo/214Po/213Po/212Po/212mPo/221Fr/212Fr/211Fr/213Fr/219Fr/218Fr/226Th/225Th/223Th/213Ra/221Ra/224Ra/222Ra/214Ra/220Rn/217Rn/213Rn, E=7 MeV/nucleon; measured Eα, Iα, αγ-coin, α-recoil masses; deduced production σ ratios, masses for certain residuals. Gas jet Tof mass spectrometer, Ti window, Ar gas thermalization, natural U target.
doi: 10.1016/0167-5087(83)91275-9
1981LU06 Z.Phys. A303, 115 (1981) T.Lund, D.Hirdes, H.Jungclas, D.Molzahn, P.Vater, R.Brandt, P.Lemmertz, R.Fass, H.Wollnik, H.Gaggeler Search for Production of Superheavy Elements via ' Fusion after Instantaneous Fission ' in the Reaction 238U + 208Pb RADIOACTIVITY, Fission 254Cf(SF), 240,242m,244mAm(SF) [from 238U(208Pb, X), E=8 MeV/nucleon]; measured fragment distribution. Gas jet, fission track counting techniques. NUCLEAR REACTIONS, Fission 238U(208Pb, X), E=8 MeV/nucleon; measured Eα, Iα, SF fragment distribution, α(fragment)-coin; deduced production yields for 240,242,244Cm, 254Cf, superheavy production σ. Radiochemical, gas jet, rotating wheel techniques, natural target.
doi: 10.1007/BF01420268
1980LE27 Z.Phys. A298, 311 (1980) P.Lemmertz, L.J.Alquist, R.Fass, H.Wollnik, D.Hirdes, H.Jungclas, R.Brandt, D.Schardt, J.Zylicz Studies on Low Spin Yrast States in 212mPo RADIOACTIVITY 212Bi [from U(208Pb, X), E=7 MeV/nucleon]; measured Eγ, Eα, αγ-coin; deduced log ft. 212Po deduced levels, T1/2, low-spin yrast band, configuration.
doi: 10.1007/BF01425163
1978FA16 Nucl.Instrum.Methods 154, 233 (1978) R.Fass, E.Georg, H.Wollnik, D.Schardt, G.Weiss, K.Wien, D.Hirdes A Time-of-Flight Mass Spectrometer for Recoil Particles from α-Active Sources Produced by a He-JET NUCLEAR REACTIONS Ge(84Kr, X), E=5.8 MeV/nucleon; measured α(fragment)-coin. 103Rh(84Kr, X), E not given; measured Eα, Iα; deduced evidence for 180,178,177,176Pt, 179,178,177Au. Recoil particles tof mass spectrometer.
1978JU03 Phys.Lett. 79B, 58 (1978) H.Jungclas, D.Hirdes, R.Brandt, P.Lemmertz, E.Georg, H.Wollnik Search for Superheavy Elements in the Interaction of 136Xe and 238U with (nat)U Using the Gas Jet Transport Technique NUCLEAR REACTIONS U(136Xe, X), U(238U, X), E not given; measured σ for production of SF nuclides; deduced upper limits for production of superheavy elements. Gas jet collection.
doi: 10.1016/0370-2693(78)90435-5
1978SC26 Z.Phys. A288, 189 (1978) U.J.Schrewe, W.-D.Schmidt-Ott, R.-D.v.Dincklage, E.Georg, P.Lemmertz, H.Jungclas, D.Hirdes Evidence of New Isotopes: 169,170Ir, 166,167,168Re RADIOACTIVITY 172,171,170,169Ir, 168,167,166Re, 171,170,169,168Os; measured Eα, T1/2; deduced α-branching.
doi: 10.1007/BF01408649
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