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NSR database version of May 10, 2024.

Search: Author = H.Ries

Found 15 matches.

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1987LE19      Nucl.Phys. A472, 533 (1987)

A.Lepretre, R.Bergere, P.Bourgeois, P.Carlos, J.Fagot, J.L.Fallou, P.Garganne, A.Veyssiere, H.Ries, R.Goble, U.Kneissl, G.Mank, H.Stroher, W.Wilke, D.Ryckbosch, J.Jury

Absolute Photofission Cross Sections for 232Th and 235,238U Measured with Monochromatic Tagged Photons (20 MeV < E(γ) < 110 MeV)

NUCLEAR REACTIONS 232Th, 235,238U(γ, F), E=20-110 MeV; measured fission σ(E). 232Th, 235,238U deduced fission evaporation competition, fission probabilities. Hybrid model. Parallel plate avalanche detector, monochromatic tagged photons.

doi: 10.1016/0375-9474(87)90044-3
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0491.


1985DR01      Nucl.Phys. A437, 253 (1985)

J.Drexler, R.D.Heil, K.Huber, U.Kneissl, G.Mank, R.Ratzek, H.Ries, T.Weber, W.Wilke, B.Fischer, H.Hollick

The ' Isomeric Shelf ' in the Deep Subbarrier Photofission of 238U

NUCLEAR REACTIONS 238U(γ, F), E=3.9-4.3 MeV bremsstrahlung; measured T1/2, isomeric to prompt yield ratio. Depleted targets.

doi: 10.1016/0375-9474(85)90087-9
Citations: PlumX Metrics


1985HE21      Nucl.Instrum.Methods 239, 545 (1985)

R.D.Heil, J.Drexler, K.Huber, U.Kneissl, G.Mank, H.Ries, H.Stroher, T.Weber, W.Wilke

A Compact Time-of-Flight Spectrometer for Electrofission Studies

RADIOACTIVITY 252Cf(SF); measured fission fragment velocities, masses, energies before neutron emission.

doi: 10.1016/0168-9002(85)90034-8
Citations: PlumX Metrics


1984AH05      Phys.Lett. 146B, 303 (1984)

J.Ahrens, J.Arends, P.Bourgeois, P.Carlos, J.L.Fallou, N.Floss, P.Garganne, S.Huthmacher, U.Kneissl, G.Mank, B.Mecking, H.Ries, R.Stenz, A.Veyssiere

Measurement of the Total Cross Section for 235U and 238U Photofission in the Δ-Resonance Region

NUCLEAR REACTIONS 235,238U(γ, F), E=120-460 MeV bremsstrahlung; measured fission σ(E). Parallel plate avalanche detector.

doi: 10.1016/0370-2693(84)91701-5
Citations: PlumX Metrics


1984DR04      Nucl.Instrum.Methods 220, 409 (1984)

J.Drexler, R.D.Fischer, R.Heil, K.Huber, U.Kneissl, G.Mank, R.Ratzek, H.Ries, H.Stroher, T.Weber, W.Wilke

Arrangements of Parallel Plate Avalanche Detectors for Electrofission and Photofission experiments

NUCLEAR REACTIONS 232Th(e+, F), (e-, F), E=9 MeV; measured fission fragment σ(θ). Parallel plate avalanche detectors.

RADIOACTIVITY 252Cf(SF); measured fission fragment tof spectra. Parallel plate avalanche detectors.

doi: 10.1016/0167-5087(84)90303-X
Citations: PlumX Metrics


1984RI08      Phys.Rev. C29, 2346 (1984)

H.Ries, G.Mank, J.Drexler, R.Heil, K.Huber, U.Kneissl, R.Ratzek, H.Stroher, T.Weber, W.Wilke

Absolute Photofission Cross Sections for 235,238U in the Energy Range 11.5-30 MeV

NUCLEAR REACTIONS 238,235U(γ, F), E=11.5-30 MeV; measured absolute fission σ(E). Quasimonoenergetic photons from positron annihilation, multiple parallel plate detectors.

doi: 10.1103/PhysRevC.29.2346
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0503.


1984RI09      Phys.Lett. 139B, 254 (1984)

H.Ries, U.Kneissl, G.Mank, H.Stroher, W.Wilke, R.Bergere, P.Bourgeois, P.Carlos, J.L.Fallou, P.Garganne, A.Veyssiere, L.S.Cardman

Absolute Photofission Cross Sections of 235,238U Measured with Tagged Photons between 40 and 105 MeV

NUCLEAR REACTIONS 235,238U(γ, F), E=40-105 MeV; measured absolute fission σ(E). 235,238U deduced total fission probability vs E. Tagged photon beam. Evaporation cascade model.

doi: 10.1016/0370-2693(84)91074-8
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0492.


1984ST07      Nucl.Phys. A419, 295 (1984)

H.Stroher, J.Drexler, R.Heil, K.Huber, U.Kneissl, G.Mank, R.Ratzek, H.Ries, T.Weber, W.Wilke, H.J.Maier

Fission Barriers of Preactinide Nuclei from Electrofission Experiments

NUCLEAR REACTIONS 182,184,186W, Pt, 209Bi(e, F), E=25-55 MeV; measured electron induced fission σ(E); deduced fission barriers B. Natural, enriched targets. Statistical model analysis.

doi: 10.1016/0375-9474(84)90394-4
Citations: PlumX Metrics


1984WE05      Z.Phys. A315, 125 (1984)

T.Weber, J.Drexler, R.D.Heil, K.Huber, U.Kneissl, G.Mank, H.Ries, H.Stroher, W.Wilke

A New Method to Test Virtual Photon Spectra

NUCLEAR REACTIONS 232Th(e-, F), E=9 MeV; 232Th(e+, F), E=16 MeV; measured fission fragment σ(θ), anisotropy.

doi: 10.1007/BF01436220
Citations: PlumX Metrics


1983DR14      Nucl.Phys. A411, 17 (1983)

J.Drexler, R.Heil, K.Huber, U.Kneissl, G.Mank, R.Ratzek, H.Ries, H.Stroher, T.Weber, W.Wilke

The Decay of Uranium Shape Isomers Investigated by Photonuclear Reactions

NUCLEAR REACTIONS 238U(γ, γ'), E=12 MeV bremsstrahlung; measured isomer T1/2, isomeric to prompt yield ratio; deduced isomeric fission cross section. 238U deduced isomer decay branching ratio. Natural target.

doi: 10.1016/0375-9474(83)90505-5
Citations: PlumX Metrics


1982RA21      Z.Phys. A308, 63 (1982)

R.Ratzek, W.Wilke, J.Drexler, R.Fischer, R.Heil, K.Huber, U.Kneissl, H.Ries, H.Stroher, R.Stock, K.Wienhard

Photofission with Linearly Polarized Photons

NUCLEAR REACTIONS 232Th(polarized γ, F), (γ, F), E=10, 12 MeV bremsstrahlung; measured fission σ(fragment θ), asymmetry. 232Th deduced E1 excitation role in fission. Linearly polarized beam, parallel plate avalanche detectors.

doi: 10.1007/BF01415850
Citations: PlumX Metrics


1982ST05      Nucl.Phys. A378, 237 (1982)

H.Stroher, R.D.Fischer, J.Drexler, K.Huber, U.Kneissl, R.Ratzek, H.Ries, W.Wilke, H.J.Maier

Absolute Cross Sections for Electron- and Positron-Induced Fission of 238U and Tests of DWBA Virtual-Photon Spectra

NUCLEAR REACTIONS 238U(e, F), (e+, F), E=10-35 MeV; measured absolute σ. Natural targets.

doi: 10.1016/0375-9474(82)90590-5
Citations: PlumX Metrics


1981GU04      Nucl.Phys. A359, 397 (1981)

W.Gunther, K.Huber, U.Kneissl, H.Krieger, H.Ries, H.Stroher, W.Wilke

Yield Ratio for the Two 241Pu Fission Isomers in the 242Pu(γ, n) Reaction

NUCLEAR REACTIONS 242Pu(γ, n), E=40-48 MeV bremsstrahlung; measured T1/2, isomeric to prompt yield ratio. 241Pu levels deduced isomeric ratio, J. Enriched target.

doi: 10.1016/0375-9474(81)90245-1
Citations: PlumX Metrics


1981ST12      Phys.Rev.Lett. 47, 318 (1981)

H.Stroher, R.D.Fischer, J.Drexler, K.Huber, U.Kneissl, R.Ratzek, H.Ries, W.Wilke, H.J.Maier

Investigation of the Fission Decay of the Isoscalar Giant Quadrupole Resonance in 238U by Electron- and Positron-Induced Fission

NUCLEAR REACTIONS, Fission 238U(e, F), (e+, F), E=10-35 MeV; measured σ(E), σ(ratio). 238U deduced no GQR fission decay. DWBA, virtual photon treatment.

doi: 10.1103/PhysRevLett.47.318
Citations: PlumX Metrics


1980GU20      Nucl.Phys. A350, 1 (1980)

W.Gunther, K.Huber, U.Kneissl, H.Krieger, H.Ries, H.Stroher, W.Wilke, H.J.Maier

Systematics of Photonuclear Yields and Cross Sections for Plutonium and Uranium Fission Isomers

NUCLEAR REACTIONS, Fission 240Pu, 235U(γ, xn), 239Pu(γ, 2n), 242Pu(γ, n), E=45 MeV bremsstrahlung; measured T1/2, isomeric to prompt yield ratios. 236U, 237,239,241Pu levels deduced σ(fission). Natural, enriched targets.

doi: 10.1016/0375-9474(80)90385-1
Citations: PlumX Metrics


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