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Search: Author = U.J.Schrewe

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1989BR06      Nucl.Instrum.Methods Phys.Res. A274, 332 (1989)

H.J.Brede, G.Dietze, K.Kudo, U.J.Schrewe, F.Tancu, C.Wen

Neutron Yields from Thick Be Targets Bombarded with Deuterons or Protons

NUCLEAR REACTIONS ⁹Be(d, xn), E=9.4-13.6 MeV; ⁹Be(p, xn), E=17.2-22 MeV; measured thick target yields.

doi: 10.1016/0168-9002(89)90399-9
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0523.

1989CL02      Nucl.Phys. A493, 293 (1989)

E.T.H.Clifford, E.Hagberg, J.C.Hardy, H.Schmeing, R.E.Azuma, H.C.Evans, V.T.Koslowsky, U.J.Schrewe, K.S.Sharma, I.S.Towner

The Decay of ²⁰Na: Measurements of isospin mixing and the weak vector coupling constant as well as other new decay data

RADIOACTIVITY ²⁰Na [from ¹²C(¹⁰B, 2n), mass separation]; measured β⁺ rays, β-delayed Eα, Iα, Eγ, Iγ, T_1/2, I(Eγ), (βα)-coin; deduced ft values, βνα-triple correlation coefficients, vector weak coupling constants. ²⁰Ne deduced branching ratios, Gamow-Teller matrix elements, levels, isospin mixing amplitudes. Natural target, Ge(Li), Si surface barrier detectors, NE102A plastic scintillator-Si surface barrier detector telescopes.

doi: 10.1016/0375-9474(89)90399-0
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1987KO34      Nucl.Phys. A472, 419 (1987)

V.T.Koslowsky, J.C.Hardy, E.Hagberg, R.E.Azuma, G.C.Ball, E.T.H.Clifford, W.G.Davies, H.Schmeing, U.J.Schrewe, K.S.Sharma

The Precise Determination of Q(EC)-Value Differences between Four Pairs of Superallowed β-Emitters: ¹⁴O and ^26mAl, ^26mAl and ⁴²Sc, ⁴²Sc and ⁵⁴Co, ⁵⁰Mn and ⁵⁴Co

NUCLEAR REACTIONS ¹⁴N, ²⁶Mg(³He, t), E=25 MeV; ⁵⁰Cr, ⁵⁴Fe(³He, t), E=29 MeV; ²⁶Mg, ⁴²Ca(³He, t), E=18.86 MeV; ⁴²Ca, ⁵⁴Fe(³He, t), E=18.89 MeV; measured triton energy differences; deduced Q-value differences. ¹⁴O, ^26mAl, ⁴²Sc, ⁵⁴Co, ⁵⁰Mn deduced Q(EC) differences. Q3D spectrometer, enriched composite targets, high voltage target assembly.

doi: 10.1016/0375-9474(87)90041-8
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1986RU05      Z.Phys. A324, 119 (1986)

E.Runte, T.Hild, W.-D.Schmidt-Ott, U.J.Schrewe, P.Tidemand-Petersson, R.Michaelsen

Completion of α-Decay Chains: The α-decay of ¹⁶²Ta and ¹⁶³Ta

NUCLEAR REACTIONS ¹³⁰Ba(³⁵Cl, 4n), (³⁵Cl, 5n), E=200 MeV; ¹³³Cs(³⁶Ar, 6n), (³⁶Ar, 7n), E=280 MeV; measured Eα, Iα, Eγ, Iγ, E(X-ray), I(X-ray); deduced evidence for ^162,163Ta.

RADIOACTIVITY ^160,161Ta(α) [from ¹³⁰Ba(³⁵Cl, xn), E=200 MeV]; measured Eα, Iα, Eγ, Iγ, E(X-ray), I(X-ray), T_1/2. ^162,163Ta(α) [from ¹³³Cs(³⁶Ar, xn), E=280 MeV]; measured Eα, Iα, Eγ, Iγ, E(X-ray), I(X-ray). ¹⁶²Ta deduced α-decay branch.

1985SC09      Z.Phys. A320, 595 (1985)

U.J.Schrewe, H.Dornhofer, E.Runte, W.-D.Schmidt-Ott, P.Tidemand-Petersson, R.Michaelsen

Atomic Masses of ^{147m, 148m, 149m}Tb, ¹⁴⁸Dy, ^{150m, 152m}Ho Derived from Decay Properties

RADIOACTIVITY ^{147m,148m,149m}Tb, ¹⁴⁸Dy, ^150,152mHo(EC), (β⁺); measured γγ-, γ(X-ray)-coin; deduced Q(EC), mass excess. ¹⁴⁸Gd, ^150,152Dy levels deduced (β⁺/(EC+β⁺)).

NUCLEAR REACTIONS ¹¹²Cd, ^114,116Sn(⁴⁰Ar, xnyp), E=200-240 MeV; measured γγ-, γ(X-ray)-coin.

doi: 10.1007/BF01411858
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1985TI01      Z.Phys. A320, 405 (1985)

P.Tidemand-Petersson, E.Runte, W.-D.Schmidt-Ott, U.J.Schrewe

Decay Energies of the Low-Spin States of ¹⁴⁷Tb and ¹⁴⁸Tb

RADIOACTIVITY ^147,148Tb(EC), (β⁺) [from ¹¹²Cd(⁴⁰Ar, xnp)]; measured γγ-, γ(X-ray)-coin, I(ce), γγ(θ), γ-anisotropy; deduced Q(EC). ^147,148Gd levels deduced (EC/β⁺) branching ratio, end-point energy. ^147,148Tb, ^151,152Ho, ^155,156Tm, ¹⁵⁹Lu deduced mass excess. Other data input.

doi: 10.1007/BF01415717
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1984SC06      Z.Phys. A315, 49 (1984)

U.J.Schrewe, E.Hagberg, H.Schmeing, J.C.Hardy, V.T.Koslowsky, K.S.Sharma

Alpha Decay of Neutron-Deficient Rhenium and Osmium Isotopes

NUCLEAR REACTIONS, ICPND ¹⁴⁴Sm(²⁷Al, 2n), (²⁷Al, 3n), (²⁷Al, 4n), (²⁷Al, 5n), (²⁷Al, 6n), E=130 MeV; ¹⁴⁴Sm(²⁸Si, 2n), (²⁸Si, 3n), (²⁸Si, 4n), (²⁸Si, 5n), (²⁸Si, 6n), E=155 MeV; measured residuals yields vs compound nucleus excitation. ¹⁴⁴Sm(²⁸Si, xn), E=130, 140, 145, 150, 155 MeV; measured Eα.Iα. ¹⁴⁴Sm(²⁷Al, xn), E=138, 150 MeV; measured Eα, Iα.

RADIOACTIVITY ^168,169,170Os(α) [from ¹⁴⁴Sm(²⁸Si, xn), E=130-155 MeV]; ^{168,168m,167,166,169m}Re(α) [from ¹⁴⁴Sm(²⁷Al, xn), E=138, 150 MeV]; measured Eα, Iα, T_1/2.

doi: 10.1007/BF01436208
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1984SC18      Z.Phys. A317, 305 (1984)

U.J.Schrewe, E.Voth, U.Bosch, W.-D.Schmidt-Ott, H.Behrens

Precise Atomic Masses of ¹⁴⁷Eu, ¹⁴⁷Gd, and ¹⁵¹Tb Derived from Their Decay Properties

NUCLEAR REACTIONS ¹⁴⁷Sm(d, 2n), E=15 MeV; ¹⁴⁴Sm(α, n), E=22 MeV; ¹⁵¹Eu(α, 4n), E=54 MeV; measured Eγ, Iγ, E X-ray, I X-ray, γγ-, γX-ray-coin. ¹⁴⁷Eu, ¹⁴⁷Gd, ¹⁵¹Tb deduced β-decay energies, Q(EC), mass.

RADIOACTIVITY ¹⁴⁷Eu(β⁺), (EC), (α) [from ¹⁴⁷Sm(d, 2n), E=15 MeV; ¹⁴⁴Sm(α, n), E=22 MeV]; ¹⁴⁷Gd(β⁺), (EC) [from ¹⁴⁴Sm(α, 2n), E=22 MeV; ¹⁵¹Tb(β⁺), (EC), (α) [from ¹⁵¹Eu(α, 4n), E=54 MeV]; measured Eγ, Iγ, E X-ray, I X-ray, γγ-, γX-ray-coin. ¹⁴⁷Eu, ¹⁴⁷Gd deduced K-capture probability, (β⁺/(EC+β⁺)) branching, Q(EC), mass. ¹⁵¹Tb deduced mass, Q(EC), (β⁺/(EC+β⁺)) branching.

doi: 10.1007/BF01438362
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1983CL01      Phys.Rev.Lett. 50, 23 (1983)

E.T.H.Clifford, J.C.Hardy, H.Schmeing, R.E.Azuma, H.C.Evans, T.Faestermann, E.Hagberg, K.P.Jackson, V.T.Koslowsky, U.J.Schrewe, K.S.Sharma, I.S.Towner

Kinematic Shifts in the β-Delayed Particle Decay of ²⁰Na, and the β-ν Angular Correlation

RADIOACTIVITY ²⁰Na(β⁺), (EC) [from ¹²C(¹⁰B, 2n), E=50 MeV]; measured βν(θ), βνα-coin; deduced β-delayed α-particle kinematic shifts, triple correlation coefficient; deduced superallowed β-decay vector weak coupling constant.

doi: 10.1103/PhysRevLett.50.23
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1983KO22      Nucl.Phys. A405, 29 (1983)

V.T.Koslowsky, E.Hagberg, J.C.Hardy, R.E.Azuma, E.T.H.Clifford, H.C.Evans, H.Schmeing, U.J.Schrewe, K.S.Sharma

The Half-Lives of ^26mAl, ³⁴Cl, ^38mK: Precision measurements with isotope-separated samples

RADIOACTIVITY ^26mAl(β⁺) [from ¹²C(¹⁶O, pn)]; ³⁴Cl(β⁺) [from ¹²C(²⁸Si, 3p3n)]; ^38mK(β⁺) [from ¹²C(²⁸Si, pn)]; measured T_1/2. 4π gas proportional counter, mass separated sources.

doi: 10.1016/0375-9474(83)90321-4
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1983SC18      Z.Phys. A310, 295 (1983)

U.J.Schrewe, E.Hagberg, H.Schmeing, J.C.Hardy, V.T.Koslowsky, K.S.Sharma

¹⁶⁴Ta, Identification of a New Isotope

NUCLEAR REACTIONS ¹²⁷I(⁴⁰Ca, 3n), E=160-180 MeV; measured Eγ, Iγ, Eα, Iα, γγ-, X-ray(γ)-coin, X-ray, γ yields vs E. ¹⁶⁴Ta deduced T_1/2, α-branching, α-reduced width. ¹⁶⁴Hf deduced possible α-transitions.

doi: 10.1007/BF01419515
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1983SC28      Z.Phys. A313, 137 (1983)

U.J.Schrewe, W.-D.Schmidt-Ott

Atomic Mass of ¹⁴⁵Eu Derived from Relative P(K)-Ratios

RADIOACTIVITY ¹⁴⁵Eu(EC), (β⁺) [from ¹⁴⁴Sm(d, n), E=11 MeV]; measured Eγ, Iγ, (K X-ray)γ-coin; deduced Q(EC), mass excess. ¹⁴⁵Sm levels deduced K-capture probability ratios.

doi: 10.1007/BF02115852
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1982HA32      Nucl.Phys. A383, 109 (1982)

E.Hagberg, J.C.Hardy, H.Schmeing, H.C.Evans, U.J.Schrewe, V.T.Koslowsky, K.S.Sharma, E.T.H.Clifford

The Decay of a New Nuclide: ⁷¹Br

RADIOACTIVITY ⁷¹Br [from ⁴⁰Ca(³⁵Cl, 2n2p), mass separation]; measured T_1/2, Eγ, Iγ, γγ-coin. ⁷¹Se deduced levels, T_1/2, transition, possible J, π, γ-multipolarity. Ge(Li), Ge detectors.

doi: 10.1016/0375-9474(82)90079-3
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1982KO28      Phys.Lett. 119B, 57 (1982)

V.T.Koslowsky, J.C.Hardy, R.E.Azuma, G.C.Ball, E.T.H.Clifford, W.G.Davies, E.Hagberg, H.Schmeing, U.J.Schrewe, K.S.Sharma

Fermi Beta-Decay: Precision Q-value doublet measurements by a new technique

NUCLEAR REACTIONS ¹⁴N, ²⁶Mg(³He, t), E not given; measured σ(Et, θ=0°), Q-value difference. ^26mAl, ¹⁴O deduced superallowed β-decay Q(EC) difference, ft. Doublet technique.

doi: 10.1016/0370-2693(82)90242-8
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1982SC15      Phys.Rev. C25, 3091 (1982)

U.J.Schrewe, E.Hagberg, H.Schmeing, J.C.Hardy, V.T.Koslowsky, K.S.Sharma, E.T.H.Clifford

Decay Studies of the New Isotopes ^162,163Hf

RADIOACTIVITY ^162,163Hf [from ¹⁴²Nd(²⁴Mg, xn), E=105-133 MeV]; measured Eγ, Iγ, Eα, Iα, γγ-coin, T_1/2. ¹⁶²Hf deduced reduced α-width, Qα, α-branching, mass excess. ¹⁶³Lu deduced levels, γ-branching, γ-multipolarity. ¹⁶²Lu deduced levels, γ-branching. Helium jet, hyperpure Ge, Ge(Li), Si surface barrier detectors.

NUCLEAR REACTIONS ¹⁴²Nd, ¹⁴¹Pr(²⁴Mg, xn), E=110-130 MeV; measured production σ(E) for ^163,162,161Hf, ^162,161,160Lu. Activation technique.

doi: 10.1103/PhysRevC.25.3091
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1981KA07      Phys.Rev. C23, 1274 (1981)

R.Kantus, U.J.Schrewe, W.-D.Schmidt-Ott, R.Michaelsen

Decay Properties of ¹⁴⁶Gd

RADIOACTIVITY ¹⁴⁶Gd [from ¹⁴⁴Sm(α, 2n), E=27 MeV], ¹⁵⁰Dy [from ¹⁴¹Pr(¹⁴N, 5n), E=85 MeV]; measured Eγ, Iγ, γγ-, γ(X-ray)-coin; deduced Q(EC). ¹⁴⁶Eu deduced levels, J, π.

doi: 10.1103/PhysRevC.23.1274
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1981MI12      Z.Phys. A301, 199 (1981)

P.Misaelides, P.Tidemand-Petersson, U.J.Schrewe, I.S.Grant, R.Kirchner, O.Klepper, I.C.Malcolm, P.J.Nolan, E.Roeckl, W.-D.Schmidt-Ott, J.L.Wood

The α- and β-Decay of ¹⁸⁷Pb

RADIOACTIVITY ¹⁸⁷Pb [from ¹⁴²Nd(⁴⁸Ti, 3n), E=235 MeV; ¹⁰⁷Ag(⁸⁴Kr, 3np)]; measured Eγ, Iγ, γγ-, αγ-, γ(X-ray)-coin, Eα, Iα, T_1/2(α). ¹⁸⁷Tl deduced levels, T_1/2, J, π. ¹⁸³Hg deduced levels, J, π, γ-multipolarity.

doi: 10.1007/BF01416294
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1981SC21      Phys.Rev. C24, 2695 (1981)

W.-D.Schmidt-Ott, R.Kantus, E.Runte, U.J.Schrewe, R.Michaelsen

Atomic Masses of ¹⁴⁸Dy and ¹⁴⁸Tb (T_1/2 = 2.2 min)

RADIOACTIVITY ¹⁴⁸Dy, ¹⁴⁸Tb [from ¹⁴¹Pr(¹⁴N, X), E=120 MeV]; measured γγ-, (X-ray)γ-coin, Eγ, Iγ; deduced Q(EC), end-point energy Eβ+, mass excess.

doi: 10.1103/PhysRevC.24.2695
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1980HA23      Z.Phys. A295, 341 (1980)

A.J.Hautojarvi, U.J.Schrewe, W.-D.Schmidt-Ott

Decay Properties of ^76mBr

RADIOACTIVITY ⁷⁶Br [from ⁷⁵As(α, 3n), E=30-55 MeV]; measured Eγ, Iγ, E(X), I(X-ray), I(ce), T_1/2. ⁷⁶Br deduced levels, multipolarities, ICC.

1980SC09      Phys.Lett. 91B, 46 (1980)

U.J.Schrewe, P.Tidemand-Petersson, G.M.Gowdy, R.Kirchner, O.Klepper, A.Plochocki, W.Reisdorf, E.Roeckl, J.L.Wood, J.Zylicz, R.Fass, D.Schardt

Alpha Decay of Neutron-Deficient Isotopes with 78 ≤ Z ≤ 83 Including the New Isotopes ^183,184Pb and ¹⁸⁸Bi

RADIOACTIVITY ^183,184,185Pb, ^182,183,184Hg, ^178,179Pt, ¹⁸³Tl; measured Eα, T_1/2, α-branching ratios, reduced Γα. ¹⁸⁸Bi; measured E(α), T_1/2.

NUCLEAR REACTIONS ^142,146Nd, ¹⁰⁷Ag(⁴⁸Ti, X), (⁸⁴Kr, X), E=4.6-6.3 MeV/nucleon; measured Eα, Iα, T_1/2; deduced evidence for ^183,184Pb, ¹⁸⁸Bi.

doi: 10.1016/0370-2693(80)90659-0
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1979PL06      Nucl.Phys. A332, 29 (1979)

A.Plochocki, G.M.Gowdy, R.Kirchner, O.Klepper, W.Reisdorf, E.Roeckl, P.Tidemand-Petersson, J.Zylicz, U.J.Schrewe, R.Kantus, R.-D.Von Dincklage, W.D.Schmidt-Ott

Masses of Very Neutron-Deficient Nuclei in the Tin Region

RADIOACTIVITY ^108,106Sn, ¹⁰⁴Cd [from ⁵⁸Ni(⁵⁸Ni, xnyp), ¹⁰²Pd(α, 2n)]; measured Eγ, Iγ, γγ-coin; deduced Q(ϵ), mass excesses. On-line mass separation, chemical separation. Enriched, natural targets. Ge(Li) detectors.

doi: 10.1016/0375-9474(79)90092-7
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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 ^{172,171,170,169}Ir, ^168,167,166Re, ^{171,170,169,168}Os; measured Eα, T_1/2; deduced α-branching.

doi: 10.1007/BF01408649
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1978SC30      Z.Phys. A289, 121 (1978)

W.-D.Schmidt-Ott, A.J.Hautojarvi, U.J.Schrewe

New Isomeric State in ⁷⁶Br with Half-Life 1.49 sec

NUCLEAR REACTIONS Se(d, xnγ), ⁷⁵As(α, xnγ), E not given; measured Eγ, Iγ, I(ce). ^76mBr deduced level, T_1/2, J, π.

doi: 10.1007/BF01408504
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1977SC10      Z.Phys. A281, 125 (1977)

U.J.Schrewe, W.-D.Schmidt-Ott

Investigation of Dual Decay of ⁷⁰Ga (21 min)

RADIOACTIVITY ⁷⁰Ga; measured β, γ, X-ray spectra; deduced weak β-, EC branching. ⁷⁰Ge deduced transitions.

doi: 10.1007/BF01408623
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