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NSR database version of April 11, 2024.

Search: Author = C.M.Folden

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2022WE04      Phys.Rev. C 106, 054615 (2022)

T.A.Werke, C.S.Salas, K.J.Glennon, D.A.Mayorov, E.E.Tereshatov, M.F.Volia, D.M.Wright, C.M.Folden, III

Measurement of fusion-evaporation cross sections for reactions of 44Ca with 154, 156, 157, 160Gd targets

NUCLEAR REACTIONS 154,156,157,160Gd(44Ca, X), (44Ca, 3n), (44Ca, 4n), (44Ca, 5n), (44Ca, 6n), (44Ca, 7n), (44Ca, 8n), E=214.3, 229.7 MeV; measured reaction products, evaporation residues, Eα, Iα, (fragment)α-coin; deduced total σ, evaporation residues σ. Comparison to theoretical calculations. Observed that collective enhancement to level density (CELD) applied in the calculations has a significant impact on the production of the spherical evaporation residues. Momentum Achromat Recoil Spectrometer (MARS) at K500 superconducting cyclotron of Cyclotron Institute at Texas A

RADIOACTIVITY 194,195,195m,196,197,197m,198,199mPo(α)[from 154,156,157,160Gd(44Ca, X)]; measured Eα, Iα, (fragment)α-coin deduced T1/2. Comparison to previous experimental results. Momentum Achromat Recoil Spectrometer (MARS) at K500 superconducting cyclotron of Cyclotron Institute at Texas A

doi: 10.1103/PhysRevC.106.054615
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2021GL02      J.Radioanal.Nucl.Chem. 330, 57 (2021)

K.J.Glennon, E.M.Bond, T.A.Bredeweg, S.S.Chirayath, P.J.O'Neal, C.M.Folden

Nuclear forensics methodology identifies legacy plutonium from the Manhattan Project

doi: 10.1007/s10967-021-07924-4
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2020HO10      Phys.Rev. C 102, 014310 (2020)

V.Horvat, E.E.Tereshatov, J.C.Hardy, N.Nica, C.M.Folden, V.E.Iacob, M.B.Trzhaskovskaya

K-shell internal conversion coefficient for M4 decay of the 30.8 keV isomer in 93Nb

RADIOACTIVITY 93Nb(IT); measured Eγ, Iγ, and K-shell conversion coefficient of the 30.76-keV M4 transition from the 30.76-keV, (1/2-) isomer using a Si(Li) detector for direct IT γ-ray and IC K-shell x-ray detection; deduced precise level energy of the isomer. Comparison with different theoretical models.

doi: 10.1103/PhysRevC.102.014310
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018NI14      Phys.Rev. C 98, 054321 (2018)

N.Nica, J.C.Hardy, V.E.Iacob, V.Horvat, H.I.Park, T.A.Werke, K.J.Glennon, C.M.Folden, V.I.Sabla, J.B.Bryant, X.K.James, M.B.Trzhaskovskaya

Precise measurement of αK andαT for the 39.8-keV E3 transition in 103Rh: Test of internal-conversion theory

RADIOACTIVITY 103Rh(IT)[from 103Ru(β-) produced in 102Ru(n, γ), and 103Pd(EC) produced in 102Pd(n, γ) at the TRIGA reactor of Texas A and M]; measured Eγ, Iγ, K-x rays, K-shell and total internal conversion coefficients; deduced M4 admixture and mixing ratio for the 39.8-keV isomeric transition in 103Rh. Comparison with Dirac-Fock calculations, and results disagree with the theory which ignores the K-shell atomic vacancy. 103Ru(β-)[from 102Ru(n, γ), E=thermal]; measured Eγ, Iγ; deduced K-x ray intensity using the known data for multipolarities and mixing ratios of non-isomeric transitions in 103Rh from the decay of 103Ru. Comparison with previous experimental γ-ray intensities in 103Ru decay.

doi: 10.1103/PhysRevC.98.054321
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2017NI10      Phys.Rev. C 95, 064301 (2017)

N.Nica, J.C.Hardy, V.E.Iacob, T.A.Werke, C.M.Folden, K.Ofodile, M.B.Trzhaskovskaya

Precise measurement of αK and αT for the 109.3-keV M4 transition in 125Te: Test of internal-conversion theory

RADIOACTIVITY 125mTe(IT)[from 124Te(n, γ), E=thermal at 1-MW TRIGA reactor of Texas A and M Nuclear Science Center]; measured Eγ, Iγ, E(x ray), I(x ray), K-conversion coefficient, and total conversion coefficient for 109.3-keV M4 transition. Comparison with Dirac-Fock calculations.

doi: 10.1103/PhysRevC.95.064301
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2016NI05      Phys.Rev. C 93, 034305 (2016)

N.Nica, J.C.Hardy, V.E.Iacob, T.A.Werke, C.M.Folden, L.Pineda, M.B.Trzhaskovskaya

Precise measurement of αK and αT for the 150.8-keV E3 transition in 111Cd: Test of internal-conversion theory

RADIOACTIVITY 111mCd(IT)[from 110Cd(n, γ), E=thermal from TRIGA reactor at Texas A and M]; measured Eγ, Iγ, I(K-x rays); deduced total and K-conversion coefficients for 150.8-keV E3 transition. Comparison with theoretical value from Dirac-Fock theory which includes the atomic vacancy. Possible evidence of penetration effects for this transition.

doi: 10.1103/PhysRevC.93.034305
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2015MA63      Phys.Rev. C 92, 054601 (2015)

D.A.Mayorov, T.A.Werke, M.C.Alfonso, E.E.Tereshatov, M.E.Bennett, M.M.Frey, C.M.Folden

Evaporation residue excitation function measurements in 50Ti- and 54Cr-induced reactions with lanthanide targets

NUCLEAR REACTIONS 160Gd, 159Tb, 162Dy(50Ti, 3n), (50Ti, 4n), (50Ti, 5n), 159Tb, 162Dy(50Ti, 2np), (50Ti, 3np), 159Tb(50Ti, 4np), E=4.9 MeV/nucleon; 162Dy(54Cr, 4n), (54Cr, 5n), (54Cr, 2np), (54Cr, 3np), 5.1 MeV/nucleon; measured reaction products, Eα and half-lives of the radioactive isotopes produced, σ(E) of evaporation residues (ER), (ER)αα-correlations, using MARS spectrometer at Texas A and M cyclotron facility. Enriched targets. 159Tb, 162Dy(48Ca, 3n), 154Gd, 159Tb, 162Dy, 165Ho(48Ca, 4n), (48Ca, 5n), 176Hf(40Ar, 4n), (40Ar, 5n), 124Sn(92Zr, 4n), (92Zr, 5n), E(*)=35-60 MeV; analyzed σ(E). Statistical model analysis, and comparison with predictions of Bohr-Wheeler transition-state theory. Discussed effect of collective enhancement of level density (CELD).

RADIOACTIVITY 204,205,206Rn, 204,205,206,208,209Fr, 208,209Ra(α)[from 160Gd, 159Tb, 162Dy(50Ti, X), E=4.9 MeV/nucleon; 212,213Ac(α)[from 162Dy(54Cr, X), E=5.1 MeV/nucleon]; measured Eα, half-lives of 205Fr and 208Ra decays.

doi: 10.1103/PhysRevC.92.054601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2203. Data from this article have been entered in the XUNDL database. For more information, click here.


2015WE13      Phys.Rev. C 92, 034613 (2015)

T.A.Werke, D.A.Mayorov, M.C.Alfonso, M.E.Bennett, M.J.DeVanzo, M.M.Frey, E.E.Tereshatov, C.M.Folden

Hot fusion-evaporation cross sections of 45Sc-induced reactions with lanthanide targets

NUCLEAR REACTIONS 156,157,158,160Gd, 159Tb, 162Dy(45Sc, 3n), (45Sc, 4n), (45Sc, 5n), (45Sc, 6n), (45Sc, 2np), (45Sc, 3np), 162Dy(45Sc, α), (45Sc, nα), (45Sc, 2nα), E≈5 MeV/nucleon; measured reaction products, Eα from decay products, evaporation residue cross sections σ(E) for 3n-, 4n-, 5n-, 6n-, p2n-, p3n-, p4n-, p5n-channels and α-, αn, α2n-channels for 162Dy using Momentum Achromat Recoil Spectrometer (MARS) at Texas A and M; deduced influence of collective enhancements to level density (CELD). Comparison with theoretical model for the fusion-evaporation process. Relevance to production of SHE region nuclei.

RADIOACTIVITY 197,198,199,200m,201At, 197,198,199,201mPo, 200,203mRn, 203Fr(α)[from 156,157,158,160Gd, 159Tb, 162Dy(45Sc, 4n), (45Sc, 3np), E≈5 MeV/nucleon]; measured Eα. Comparison with previously measured values.

doi: 10.1103/PhysRevC.92.034613
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2193.


2015WE16      Phys.Rev. C 92, 054617 (2015)

T.A.Werke, D.A.Mayorov, M.C.Alfonso, E.E.Tereshatov, C.M.Folden, III

Hot fusion-evaporation cross sections of 44Ca-induced reactions with lanthanide targets

NUCLEAR REACTIONS 158Gd(44Ca, 3n), (44Ca, 4n), (44Ca, 5n), (44Ca, 6n), E=177.6, 184.2, 185.7, 188.4, 191.3, 196.0; 159Tb(44Ca, 3n), (44Ca, 4n), (44Ca, 5n), (44Ca, 3np), (44Ca, 4np), (44Ca, 5np), E=184.7, 189.8, 196.3, 200.5, 208.0; 162Dy(44Ca, 3n), (44Ca, 4n), (44Ca, 5n), (44Ca, 2np), (44Ca, 3np), (44Ca, 4np), (44Ca, 5np), E=183.7, 188.9, 195.4, 199.5, 207.1; measured reaction products, σ(E) using Momentum Recoil Achromat Spectrometer (MARS) at Cyclotron Institute of Texas A and M University. Comparison with theoretical model calculations with and without consideration of collective enhancements to level density (CELD), and with experimental σ(E) for 45Sc induced reactions on the same targets; deduced little evidence for cross-sectional enhancement due to shell stabilization of compound nucleus.

RADIOACTIVITY 197,198Po(α)[from 158Gd(44Ca, 5n), (44Ca, 4n), E≈5 MeV/nucleon]; 199At, 199mPo(α)[from 159Tb(44Ca, 4n), (44Ca, 3np), E≈5 MeV/nucleon]; 202Rn, 202At(α)[from 162Dy(44Ca, 4n), (44Ca, 3np), E≈5 MeV/nucleon]; Measured Eα, and T1/2 of 199At, 202Rn decays. Comparison with evaluated data in the chart of nuclides on NNDC webpage.

doi: 10.1103/PhysRevC.92.054617
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2206. Data from this article have been entered in the XUNDL database. For more information, click here.


2014MA66      Phys.Rev. C 90, 024602 (2014)

D.A.Mayorov, T.A.Werke, M.C.Alfonso, M.E.Bennett, C.M.Folden

Production cross sections of elements near the N=126 shell in 48Ca-induced reactions with 154Gd, 159Tb, 162Dy, and 165Ho targets

NUCLEAR REACTIONS 154Gd(48Ca, 3n)199mPo, 154Gd(48Ca, 4n)198Po, 154Gd(48Ca, 5n)197mPo, 159Tb(48Ca, 3n)204At, (48Ca, 4n)203At, (48Ca, 5n)202At, (48Ca, 6n)201At, 162Dy(48Ca, 3n)207Rn, (48Ca, xn)206Rn/205Rn, (48Ca, 6n)204Rn, 165Ho(48Ca, 3n)210Fr, (48Ca, xn)209Fr/208Fr, (48Ca, 6n)207Fr, E=180-210 MeV; measured reaction products, α spectra from residues, evaporation residue σ(E) using MARS spectrometer at Texas A-M cyclotron facility; deduced signature of collective effects. Comparison with theoretical σ(E), calculated with and without the inclusion of collective enhancement of level density. Discussed implications for production of superheavy elements.

RADIOACTIVITY 198,199mPo, 203,204At, 206,207Rn, 209,210Fr(α)[from 154Gd, 159Tb, 162Dy, 165Ho(48Ca, xn), E=180-210 meV]; measured Eα, compared with previous experimental values.

doi: 10.1103/PhysRevC.90.024602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2127.


2012BE07      Nucl.Instrum.Methods Phys.Res. B276, 62 (2012)

M.E.Bennett, D.A.Mayorov, K.D.Chapkin, M.C.Alfonso, T.A.Werke, C.M.Folden III

Measurement of the natLu(p, x)175Hf excitation function

NUCLEAR REACTIONS Lu(p, X)175Hf, E=5.2-16.7 MeV; Ti(p, X)48V, E=6.9-16 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with available data.

doi: 10.1016/j.nimb.2012.01.039
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1909.


2012FO09      Nucl.Instrum.Methods Phys.Res. A678, 1 (2012)

C.M.Folden III, M.C.Alfonso, D.A.Mayorov, K.R.Lawrence, A.A.Alharbi, E.Berdugo, P.J.Cammarata, A.C.Raphelt, B.T.Roeder, T.A.Werke

Development of the MARS separator for heavy element studies

NUCLEAR REACTIONS 165Ho(40Ar, xnyp)197Po/197mPo/198Po/198At/199Po/199mPo/199At/200At, E=220.2 MeV; measured Eα, half-lives, (EVR)α correlations, excitation functions, σ for production of heavy-element studies using MARS separator at Texas A

doi: 10.1016/j.nima.2012.02.035
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Data from this article have been entered in the XUNDL database. For more information, click here.


2010FE01      Phys.Rev. C 81, 044318 (2010)

R.Ferrer, M.Block, C.Bachelet, B.R.Barquest, G.Bollen, C.M.Campbell, M.Facina, C.M.Folden III, C.Guenaut, A.A.Kwiatkowski, D.L.Lincoln, D.J.Morrissey, G.K.Pang, A.M.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz

Penning trap mass spectrometry of neutron-rich Fe and Co isotopes around N=40 with the LEBIT mass spectrometer

ATOMIC MASSES 63,64,65,65m,66Fe, 64,65,66,67,67mCo; measured cyclotron resonance frequencies and mass excesses using LEBIT Penning-trap mass spectrometer. Comparison with AME-2003 evaluation. 61,63,65,67Fe; systematics of low-lying levels. Z=24-31, N=35-44; systematics of two-neutron separation energies.

doi: 10.1103/PhysRevC.81.044318
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2009FO02      Phys.Rev. C 79, 027602 (2009)

C.M.Folden III, I.Dragojevic, Ch.E.Dullmann, R.Eichler, M.A.Garcia, J.M.Gates, S.L.Nelson, R.Sudowe, K.E.Gregorich, D.C.Hoffman, H.Nitsche

Measurement of the 208Pb(52Cr, n)259Sg excitation function

NUCLEAR REACTIONS 208Pb(52Cr, n)259Sg, E=250.7-266.2 MeV; 208Pb(52Cr, 2n)258Sg, E=250.7-266.2 MeV. Measured excitation functions, σ.

RADIOACTIVITY 259Sg, 258Sg, 255Rf(α), (SF), (EC), 251No(α); measured Eα, half-lives, decay modes.

doi: 10.1103/PhysRevC.79.027602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1670. Data from this article have been entered in the XUNDL database. For more information, click here.


2009FO05      Phys.Rev. C 79, 064318 (2009)

C.M.Folden III, A.S.Nettleton, A.M.Amthor, T.N.Ginter, M.Hausmann, T.Kubo, W.Loveland, S.L.Manikonda, D.J.Morrissey, T.Nakao, M.Portillo, B.M.Sherrill, G.A.Souliotis, B.F.Strong, H.Takeda, O.B.Tarasov

New neutron-rich microsecond isomers observed among fission products of 238U at 80 MeV/nucleon

NUCLEAR REACTIONS 9Be(238U, X)60mMn/78mGa/82mGa/92mBr/95mRb/98mRb/92mY/101mY/112mTc, E=80 MeV/nucleon; measured Eγ, Iγ, γγ-coin, isomer half-lives. 60Mn, 78,82Ga, 92Br, 95,98Rb, 92,101Y, 112Tc; deduced levels, J, π. 66mCu, 78mZn, 88mBr, 95mKr, 96mRb, 97m,100mSr, 99mMo, 121mPd, 124mSn, 125mXe; measured Eγ and half-lives. 91,92,93Y; measured Eγ.

doi: 10.1103/PhysRevC.79.064318
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009KW02      Phys.Rev. C 80, 051302 (2009)

A.A.Kwiatkowski, B.R.Barquest, G.Bollen, C.M.Campbell, D.L.Lincoln, D.J.Morrissey, G.K.Pang, A.M.Prinke, J.Savory, S.Schwarz, C.M.Folden III, D.Melconian, S.K.L.Sjue, M.Block

Precision test of the isobaric multiplet mass equation for the A=32, T=2 quintet

ATOMIC MASSES 32,33Si, 32S, 31,34P; measured masses using LEBIT Penning-trap spectrometer; deduced mass excesses. Discussed validity of quadratic form of isobaric multiplet mass equation (IMME).

doi: 10.1103/PhysRevC.80.051302
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2009RI12      Phys.Rev. C 80, 064321 (2009)

R.Ringle, C.Bachelet, M.Block, G.Bollen, M.Facina, C.M.Folden III, C.Guenaut, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.M.Prinke, J.Savory, P.Schury, S.Schwarz, C.S.Sumithrarachchi

High-precision Penning trap mass measurements of neutron-rich sulfur isotopes at the N=28 shell closure

ATOMIC MASSES 40,41,42,43,44S; measured precise mass excesses using LEBIT Penning trap mass spectrometer. Comparison with other recent mass measurements. Systematics of S(2n) values for N=24-30, Z=15-18 nuclides.

doi: 10.1103/PhysRevC.80.064321
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2009SA12      Phys.Rev.Lett. 102, 132501 (2009)

J.Savory, P.Schury, C.Bachelet, M.Block, G.Bollen, M.Facina, C.M.Folden III, C.Guenaut, E.Kwan, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.Prinke, R.Ringle, H.Schatz, S.Schwarz, C.S.Sumithrarachchi

rp Process and Masses of N ∼ Z ∼ 34 Nuclides

ATOMIC MASSES 68,70Se, 70,71Br; measured frequencies using penning trap; deduced masses. 70,71Kr predicted masses.

doi: 10.1103/PhysRevLett.102.132501
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2009SC29      Eur.Phys.J. A 42, 323 (2009)

S.Schwarz, M.Block, G.Bollen, C.M.Campbell, M.Facina, R.Ferrer, C.M.Folden III, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.M.Prinke, R.J.Ringle, J.Savory, P.H.Schury

Precision Penning trap mass measurements of rare isotopes produced by projectile fragmentation

ATOMIC MASSES 32Si, 32P, 32S, 32Cl, 32Ar; analyzed masses from Penning trap measurements. Comparison with Isobaric Multiplet Mass Equation calculations.

doi: 10.1140/epja/i2009-10808-4
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2008BL05      Phys.Rev.Lett. 100, 132501 (2008); Erratum Phys.Rev.Lett. 101, 059901 (2008)

M.Block, C.Bachelet, G.Bollen, M.Facina, C.M.Folden III, C.Guenaut, A.A.Kwiatkowski, D.J.Morrissey, G.K.Pang, A.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz

Discovery of a Nuclear Isomer in 65Fe with Penning Trap Mass Spectrometry

ATOMIC MASSES 63,64,65Fe, 64,65,66Co; measured and evaluated masses using Penning trap mass spectrometer, isotopes produced by projectile fragmentation with LEBIT at NSCL. 65mFe; deduced level energy, T1/2 for isomeric state.

doi: 10.1103/PhysRevLett.100.132501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2008GA08      Phys.Rev. C 77, 034603 (2008)

J.M.Gates, M.A.Garcia, K.E.Gregorich, Ch.E.Dullmann, I.Dragojevic, J.Dvorak, R.Eichler, C.M.Folden III, W.Loveland, S.L.Nelson, G.K.Pang, L.Stavsetra, R.Sudowe, A.Turler, H.Nitsche

Synthesis of rutherfordium isotopes in the 238U(26Mg, xn)264-xRf reaction and study of their decay properties

NUCLEAR REACTIONS 238U(26Mg, 3n), (26Mg, 4n), (26Mg, 5n), (26Mg, 6n), E=4.9-6.0 MeV/nucleon; measured excitation functions, σ, half-lives, cross sections.

RADIOACTIVITY 258Rf(α) [from 238U(26Mg, 6n), E=4.9-6.0 MeV/nucleon]; 259Rf(EC) [from 238U(26Mg, 5n), E=4.9-6.0 MeV/nucleon]; 260Rf(α), (SF) [from 238U(26Mg, 4n), E=4.9-6.0 MeV/nucleon]; 261Rf(α), (SF) [from 238U(26Mg, 3n), E=4.9-6.0 MeV/nucleon]; 254No(α); measured α spectra, Q-values, charged particle spectra.242,244,246,248,250,252,254,256,258Fm, 248,250,252,254,256No, 250,252,254,256Rf, 252,254,256,258,260Sg; systematics.

doi: 10.1103/PhysRevC.77.034603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1607. Data from this article have been entered in the XUNDL database. For more information, click here.


2008GA25      Phys.Rev. C 78, 034604 (2008)

J.M.Gates, S.L.Nelson, K.E.Gregorich, I.Dragojevic, Ch.E.Dullmann, P.A.Ellison, C.M.Folden III, M.A.Garcia, L.Stavsetra, R.Sudowe, D.C.Hoffman, H.Nitsche

Comparison of reactions for the production of 258, 257Db: 208Pb(51V, xn) and 209Bi(50Ti, xn)

NUCLEAR REACTIONS 208Pb(51V, n), (51V, 2n), E=4.7-5.1 MeV/nucleon; measured excitation function, σ. 209Bi(50Ti, n), (50Ti, 2n); systematics of excitation functions, σ.

RADIOACTIVITY 257,258Db, 253,254Lr, 249,250Md, 246Cf, 250Fm, 254No, 245Es(α); measured α-spectra, half-lives.

doi: 10.1103/PhysRevC.78.034604
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1703. Data from this article have been entered in the XUNDL database. For more information, click here.


2008NE08      Phys.Rev. C 78, 024606 (2008)

S.L.Nelson, C.M.Folden III, K.E.Gregorich, I.Dragojevic, Ch.E.Dullmann, R.Eichler, M.A.Garcia, J.M.Gates, R.Sudowe, H.Nitsche

Comparison of complementary reactions for the production of 261, 262Bh

NUCLEAR REACTIONS 208Pb(55Mn, n), (55Mn, 2n), E=273, 278, 283 MeV; 209Bi(54Cr, n), (54Cr, 2n), E=253.5-272.3 MeV; measured excitation functions, σ, half-lives.

doi: 10.1103/PhysRevC.78.024606
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Data from this article have been entered in the XUNDL database. For more information, click here.


2007BA71      Nature(London) 449, 1022 (2007)

T.Baumann, A.M.Amthor, D.Bazin, B.A.Brown, C.M.Folden III, A.Gade, T.N.Ginter, M.Hausmann, M.Matos, D.J.Morrissey, M.Portillo, A.Schiller, B.M.Sherrill, A.Stolz, O.B.Tarasov, M.Thoennessen

Discovery of 40Mg and 42Al suggests neutron drip-line slant towards heavier isotopes

NUCLEAR REACTIONS W(48Ca, X)40Mg/42Al, E=141 MeV/nucleon; measured fragment energies, charge and mass distributions.

doi: 10.1038/nature06213
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2007BO50      Eur.Phys.J. Special Topics 150, 337 (2007)

G.Bollen, C.Bachelet, M.Block, D.A.Davies, M.Facina, C.M.Folden, C.Guenaut, J.Huikari, E.Kwan, A.Kwiatowski, D.J.Morrissey, G.Pang, A.Prinke, R.Ringle, J.Savory, P.Schury, S.Schwarz, C.Sumithrarachchi, T.Sun

Penning trap mass measurements of rare isotopes produced by projectile fragmentation with LEBIT at NSCL

ATOMIC MASSES 80As, 81Se; measured masses a penning trap mass spectrometer.

doi: 10.1140/epjst/e2007-00340-3
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2007SC24      Phys.Rev. C 75, 055801 (2007); Erratum Phys.Rev. C 80, 029905 (2009)

P.Schury, C.Bachelet, M.Block, G.Bollen, D.A.Davies, M.Facina, C.M.Folden III, C.Guenaut, J.Huikari, E.Kwan, A.Kwiatkowski, D.J.Morrissey, R.Ringle, G.K.Pang, A.Prinke, J.Savory, H.Schatz, S.Schwarz, C.S.Sumithrarachchi, T.Sun

Precision mass measurements of rare isotopes near N = Z = 33 produced by fast beam fragmentation

ATOMIC MASSES 63,64Ga, 64,65,66Ge, 66,67,68As, 69Se; measured masses using penning trap mass spectrometer. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.75.055801
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2007TA15      Phys.Rev. C 75, 064613 (2007)

O.B.Tarasov, T.Baumann, A.M.Amthor, D.Bazin, C.M.Folden III, A.Gade, T.N.Ginter, M.Hausmann, M.Matos, D.J.Morrissey, A.Nettleton, M.Portillo, A.Schiller, B.M.Sherrill, A.Stolz, M.Thoennessen

New isotope 44Si and systematics of the production cross sections of the most neutron-rich nuclei

NUCLEAR REACTIONS 184W, 9Be(48Ca, X)36Mg/37Mg/38Mg/41Si/42Si/43Si/44Si, E=142 MeV/nucleon; measured production cross sections. Compared results to model calculations.

doi: 10.1103/PhysRevC.75.064613
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2006EI01      Radiochim.Acta 94, 181 (2006)

R.Eichler, W.Bruchle, R.Buda, S.Burger, R.Dressler, Ch.E.Dullmann, J.Dvorak, K.Eberhardt, B.Eichler, C.M.Folden III, H.W.Gaggeler, K.E.Gregorich, F.Haenssler, D.C.Hoffman, H.Hummrich, E.Jager, J.V.Kratz, B.Kuczewski, D.Liebe, D.Nayak, H.Nitsche, D.Piguet, Z.Qin, U.Rieth, M.Schadel, B.Schausten, E.Schimpf, A.Semchenkov, S.Soverna, R.Sudowe, N.Trautmann, P.Thorle, A.Turler, B.Wierczinski, N.Wiehl, P.A.Wilk, G.Wirth, A.B.Yakushev, A.von Zweidorf

Attempts to chemically investigate element 112

NUCLEAR REACTIONS 238U(48Ca, X), E=231, 235 MeV; measured delayed fission, Eα, (fission)α-coin; deduced no evidence for 283Cn. Thermochromatography.

doi: 10.1524/ract.2006.94.4.181
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2006FO02      Phys.Rev. C 73, 014611 (2006)

C.M.Folden III, S.L.Nelson, Ch.E.Dullmann, J.M.Schwantes, R.Sudowe, P.M.Zielinski, K.E.Gregorich, H.Nitsche, D.C.Hoffman

Excitation function for the production of 262Bh (Z = 107) in the odd-Z-projectile reaction 208Pb(55Mn, n)

NUCLEAR REACTIONS 208Pb(55Mn, n), E=260, 264, 268 MeV; measured delayed Eα, αα-coin, excitation function. 208Pb(55Mn, 2n), E=268 MeV; measured delayed Eα, αα-coin; deduced evidence for 261Bh. Gas-filled separator.

RADIOACTIVITY 261,262,262mBh, 257,258Db, 253m,254Lr, 254No, 250Fm(α) [from 208Pb(55Mn, xn) and subsequent decay]; measured Eα, T1/2.

doi: 10.1103/PhysRevC.73.014611
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2006GR24      Phys.Rev. C 74, 044611 (2006)

K.E.Gregorich, J.M.Gates, Ch.E.Dullmann, R.Sudowe, S.L.Nelson, M.A.Garcia, I.Dragojevic, C.M.Folden III, S.H.Neumann, D.C.Hoffman, H.Nitsche

New isotope 264Sg and decay properties of 262-264Sg

NUCLEAR REACTIONS 238U(30Si, 4n), (30Si, 5n), (30Si, 6n), E=147-174 MeV; measured delayed Eα, (recoil)α-coin; deduced excitation functions.

RADIOACTIVITY 262,264Sg(SF); measured T1/2, α-decay branching upper limit. 263Sg(SF), (α); measured T1/2, branching ratio. 259Rf, 255No; measured T1/2.

doi: 10.1103/PhysRevC.74.044611
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2005DU23      Nucl.Instrum.Methods Phys.Res. A551, 528 (2005)

Ch.E.Dullmann, C.M.Folden III, K.E.Gregorich, D.C.Hoffman, D.Leitner, G.K.Pang, R.Sudowe, P.M.Zielinski, H.Nitsche

Heavy-ion-induced production and physical preseparation of short-lived isotopes for chemistry experiments

NUCLEAR REACTIONS Ge(18O, X)83mSr/83Y/84mY/88mY/85Zr/87Zr, E=82.8 GeV; 84Se(18O, X)86mY/85Zr/87Nb/87mNb/88Nb/88Mo, E=82.7 MeV; 124Sn(50Ti, X)168mLu/167Hf/168Hf, E=223.7 MeV; 116Sn(50Ti, X)162Tm/161Yb/162Yb/163Yb/162Lu/162Hf, E=224.4 MeV; measured delayed Eγ, Iγ following residual nucleus decay. Physical preseparation technique.

doi: 10.1016/j.nima.2005.05.077
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2005GR19      Phys.Rev. C 72, 014605 (2005)

K.E.Gregorich, W.Loveland, D.Peterson, P.M.Zielinski, S.L.Nelson, Y.H.Chung, Ch.E.Dullmann, C.M.Folden III, K.Aleklett, R.Eichler, D.C.Hoffman, J.P.Omtvedt, G.K.Pang, J.M.Schwantes, S.Soverna, P.Sprunger, R.Sudowe, R.E.Wilson, H.Nitsche

Attempt to confirm superheavy element production in the 48Ca + 238U reaction

NUCLEAR REACTIONS 238U(48Ca, 3n), E=230.3, 235.6 MeV; measured σ upper limits; deduced no evidence for 283Cn. Comparison with previous results.

doi: 10.1103/PhysRevC.72.014605
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2005ST16      Nucl.Instrum.Methods Phys.Res. A543, 509 (2005)

L.Stavsetra, K.E.Gregorich, J.Alstad, H.Breivik, K.Eberhardt, C.M.Folden III, T.N.Ginter, M.Johansson, U.W.Kirbach, D.M.Lee, M.Mendel, L.A.Omtvedt, J.B.Patin, G.Skarnemark, R.Sudowe, P.A.Wilk, P.M.Zielinski, H.Nitsche, D.C.Hoffman, J.P.Omtvedt

Liquid-scintillation detection of preseparated 257Rf with the SISAK-system

NUCLEAR REACTIONS 208Pb(50Ti, n), E=237 MeV; measured delayed αα-coin; deduced evidence for 257Rf. Gas-filled separator, fast liquid-liquid extraction system.

doi: 10.1016/j.nima.2004.12.010
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2004FO08      Phys.Rev.Lett. 93, 212702 (2004)

C.M.Folden III, K.E.Gregorich, Ch.E.Dullmann, H.Mahmud, G.K.Pang, J.M.Schwantes, R.Sudowe, P.M.Zielinski, H.Nitsche, D.C.Hoffman

Development of an Odd-Z-Projectile Reaction for Heavy Element Synthesis: 208Pb(64Ni, n)271Ds and 208Pb(65Cu, n)272Rg

NUCLEAR REACTIONS 208Pb(64Ni, n), E=311.5, 314.3 MeV; 208Pb(65Cu, n), E=321 MeV; measured measured αα-coin following residual nucleus decay; deduced σ. Gas-filled separator.

RADIOACTIVITY 271Ds, 267Hs, 263mSg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; 272Rg, 268Mt, 264Bh, 260Db, 256Lr(α) [from 208Pb(65Cu, n) and subsequent decay]; measured Eα, T1/2. Gas-filled separator.

doi: 10.1103/PhysRevLett.93.212702
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2004GA18      Nucl.Phys. A734, 208 (2004)

H.W.Gaggeler, W.Bruchle, Ch.E.Dullmann, R.Dressler, K.Eberhardt, B.Eichler, R.Eichler, C.M.Folden, T.N.Ginter, F.Glaus, K.E.Gregorich, F.Haenssler, D.C.Hoffman, E.Jager, D.T.Jost, U.W.Kirbach, J.V.Kratz, H.Nitsche, J.B.Patin, V.Pershina, D.Piguet, Z.Qin, U.Rieth, M.Schadel, E.Schimpf, B.Schausten, S.Soverna, R.Sudowe, P.Thorle, N.Trautmann, A.Turler, A.Vahle, P.A.Wilk, G.Wirth, A.B.Yakushev, A.von Zweidorf

Chemical and nuclear studies of hassium and element 112

NUCLEAR REACTIONS 248Cm(26Mg, 4n), (26Mg, 5n), E=145 MeV; 238U(48Ca, 3n), E=239 MeV; measured yields. Chemical properties discussed.

doi: 10.1016/j.nuclphysa.2004.01.036
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2004HW04      Phys.Rev. C 69, 067302 (2004), Erratum Phys.Rev. C 106, 059901 (2022)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, Y.X.Luo, J.O.Rasmussen, C.J.Beyer, P.M.Gore, S.C.Wu, I.Y.Lee, C.M.Folden, P.Fallon, P.Zielinski, K.E.Gregorich, M.A.Stoyer, T.N.Ginter, S.J.Zhu, J.D.Cole, R.Donangelo

High spin states in 95Sr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 95Sr deduced high-spin levels, J, π, configurations. Gammasphere array.

doi: 10.1103/PhysRevC.69.067302
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2004LU03      Phys.Rev. C 69, 024315 (2004)

Y.X.Luo, S.C.Wu, J.Gilat, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, C.J.Beyer, S.J.Zhu, J.Kormicki, X.Q.Zhang, E.F.Jones, P.M.Gore, I-Y.Lee, P.Zielinski, C.M.Folden III, T.N.Ginter, P.Fallon, G.M.Ter-Akopian, A.V.Daniel, M.A.Stoyer, J.D.Cole, R.Donangelo, S.J.Asztalos, A.Gelberg

Level structures of 110, 111, 112, 113Rh from measurements on 252Cf

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 110,111,112,113Rh deduced levels, J, π, configurations, deformation. Gammasphere array. Comparison with model predictions.

doi: 10.1103/PhysRevC.69.024315
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2003GI05      Phys.Rev. C 67, 064609 (2003); Erratum Phys.Rev. C 68, 029901 (2003)

T.N.Ginter, K.E.Gregorich, W.Loveland, D.M.Lee, U.W.Kirbach, R.Sudowe, C.M.Folden III, J.B.Patin, N.Seward, P.A.Wilk, P.M.Zielinski, K.Aleklett, R.Eichler, H.Nitsche, D.C.Hoffman

Confirmation of production of element 110 by the 208Pb(64Ni, n) reaction

NUCLEAR REACTIONS 208Pb(64Ni, n), E=312.5, 315, 317.5 MeV: measured delayed (recoil)α-coin; deduced production σ.

RADIOACTIVITY 271Ds, 267Hs, 263Sg, 259Rf, 255No(α) [from 208Pb(64Ni, n) and subsequent decay]; measured Eα.

doi: 10.1103/PhysRevC.67.064609
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2003GR26      Eur.Phys.J. A 18, 633 (2003)

K.E.Gregorich, T.N.Ginter, W.Loveland, D.Peterson, J.B.Patin, C.M.Folden III, D.C.Hoffman, D.M.Lee, H.Nitsche, J.P.Omtvedt, L.A.Omtvedt, L.Stavsetra, R.Sudowe, P.A.Wilk, P.M.Zielinski, K.Aleklett

Cross-section limits for the 208Pb(86Kr, n)293118 reaction

NUCLEAR REACTIONS 208Pb(86Kr, X), E=449 MeV; measured evaporation residue yields; deduced no evidence for 293Og. 208Pb(86Kr, n), E=449 MeV; deduced production σ upper limit.

doi: 10.1140/epja/i2002-10165-x
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2003HW01      Phys.Rev. C 67, 014317 (2003), Erratum Phys.Rev. C 106, 049903 (2022)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, Y.X.Luo, J.O.Rasmussen, C.J.Beyer, P.M.Gore, S.C.Wu, I.Y.Lee, C.M.Folden III, P.Fallon, P.Zielinski, K.E.Gregorich, A.O.Macchiavelli, M.A.Stoyer, S.J.Asztalos, T.N.Ginter, R.Donangelo, L.Coraggio, A.Covello, A.Gargano, N.Itaco

High spin states in 93Sr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 93Sr deduced high-spin levels, J, π, configurations. Gammasphere array, comparisons with model predictions.

NUCLEAR STRUCTURE 90,92,93,94Sr; calculated levels, J, π. Shell model.

doi: 10.1103/PhysRevC.67.014317
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2003HW03      Phys.Rev. C 67, 054304 (2003), Erratum Phys.Rev. C 106, 049902 (2022)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, D.Fong, C.J.Beyer, P.M.Gore Y.X.Luo, J.O.Rasmussen, S.C.Wu, I.Y.Lee, C.M.Folden III, P.Fallon, P.Zielinski, K.E.Gregorich, A.O.Macchiavelli, M.A.Stoyer, S.J.Asztalos, T.N.Ginter, S.J.Zhu, J.D.Cole, G.M.Ter-Akopian, Yu.Ts.Oganessian, R.Donangelo

Identification of ν9/2[404] band in 97Sr

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 97Sr deduced high-spin levels, J, π, T1/2, configurations. Gammasphere array.

doi: 10.1103/PhysRevC.67.054304
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2002HW01      J.Phys.(London) G28, L9 (2002)

J.K.Hwang, C.J.Beyer, A.V.Ramayya, J.H.Hamilton, X.Q.Zhang, J.O.Rasmussen, Y.X.Luo, S.C.Wu, T.N.Ginter, I.Y.Lee, C.M.Folden, P.Fallon, P.Zielinski, K.E.Gregorich, A.O.Macchiavelli, M.Stoyer, S.J.Asztalos

Identification of Neutron h11/2 Bands in 121, 123Cd

RADIOACTIVITY 252Cf(SF); measured Eγ, γγ-coin. 121,123Cd deduced levels, J, π, bands, deformation features following coincidence with Sn γ-rays. Gammasphere array, comparison with neighboring nuclides.

doi: 10.1088/0954-3899/28/2/102
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2002HW03      Phys.Rev. C65, 034319 (2002), Erratum Phys.Rev. C 106, 049905 (2022)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, C.J.Beyer, J.O.Rasmussen, Y.X.Luo, S.C.Wu, T.N.Ginter, C.M.Folden III, P.Fallon, P.M.Zielinski, K.E.Gregorich, A.O.Macchiavelli, M.Stoyer, S.J.Asztalos, A.Covello, A.Gargano

Particle-Hole Excited States in 133Te

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 133Te; deduced levels, J, π, configurations. Gammasphere array. Comparison with shell model results.

doi: 10.1103/PhysRevC.65.034319
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2002HW06      Phys.Rev. C65, 054314 (2002)

J.K.Hwang, A.V.Ramayya, J.H.Hamilton, C.J.Beyer, X.Q.Zhang, J.O.Rasmussen, Y.X.Luo, S.C.Wu, T.N.Ginter, I.Y.Lee, C.M.Folden, P.Fallon, P.Zielinski, K.E.Gregorich, A.O.Macchiavelli, M.A.Stoyer, S.J.Asztalos

π 7/2[413] Rotational Band and High Spin States in Odd-Mass 115, 117Ag

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 115,117Ag deduced high-spin levels, J, π, configurations. Gammasphere array.

doi: 10.1103/PhysRevC.65.054314
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2002KI25      Nucl.Instrum.Methods Phys.Res. A484, 587 (2002)

U.W.Kirbach, C.M.Folden III, T.N.Ginter, K.E.Gregorich, D.M.Lee, V.Ninov, J.P.Omtvedt, J.B.Patin, N.K.Seward, D.A.Strellis, R.Sudowe, A.Turler, P.A.Wilk, P.M.Zielinski, D.C.Hoffman, H.Nitsche

The Cryo-Thermochromatographic Separator (CTS): A new rapid separation and α-detection system for on-line chemical studies of highly volatile osmium and hassium (Z=108) tetroxides

doi: 10.1016/S0168-9002(01)01990-8
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2002LU08      Phys.Rev. C66, 014305 (2002), Erratum Phys.Rev. C 107, 029902 (2023)

Y.X.Luo, J.O.Rasmussen, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, C.J.Beyer, S.J.Zhu, J.Kormicki, X.Q.Zhang, E.F.Jones, P.M.Gore, T.N.Ginter, K.E.Gregorich, I.-Y.Lee, A.O.Macchiavelli, P.Zielinski, C.M.Folden III, P.Fallon, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, M.A.Stoyer, J.D.Cole, R.Donangelo, S.C.Wu, S.J.Asztalos

Level Structure of 141Ba and 139Xe and the Level Systematics of N = 85 Even-Odd Isotones

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 141Ba, 139Xe deduced high-spin levels, possible J, π, configurations. Level systematics in neighboring isotones discussed. Gammasphere array.

doi: 10.1103/PhysRevC.66.014305
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2001LU16      Phys.Rev. C 64, 054306 (2001); Erratum Phys.Rev. C 104, 069902 (2021)

Y.X.Luo, J.O.Rasmussen, A.V.Ramayya, J.H.Hamilton, X.Q.Zhang, J.K.Hwang, C.J.Beyer, J.Kormicki, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, K.E.Gregorich, T.N.Ginter, P.Zielinski, C.M.Folden, I.Y.Lee, P.Fallon, A.Macchiavelli, R.Donangelo, M.A.Stoyer, S.Asztalos, S.C.Wu

Fission γ Spectra and Levels in 139Ba

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 135Te, 139Ba deduced high-spin levels, J, π. Gammasphere array.

doi: 10.1103/PhysRevC.64.054306
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