ISOL science at the Holifield Radioactive Ion Beam Facility

The Holifield Radioactive Ion Beam Facility (HRIBF) provides high-quality Isotope Separator Online beams of short-lived, radioactive nuclei for nuclear structure and reaction studies, astrophysics research, and interdisciplinary applications. The primary driver, the Oak Ridge Isochronous Cyclotron, produces rare isotopes by bombarding highly refractory targets with light ions. The radioactive isotopes are ionized, formed into a beam, mass selected, injected into the 25 MV tandem, accelerated, and used in experiments. This paper reviews the HRIBF and its users' science.

[1]  C. Ruiz,et al.  Physics with reaccelerated radioactive beams at TRIUMF-ISAC , 2011 .

[2]  W. Nazarewicz,et al.  Orbital dependent nucleonic pairing in the lightest known isotopes of tin. , 2010, Physical review letters.

[3]  M. S. Smith,et al.  The magic nature of 132Sn explored through the single-particle states of 133Sn , 2010, Nature.

[4]  C. Mazzocchi,et al.  New subshell closure at N=58 emerging in neutron-rich nuclei beyond Ni-78 , 2010 .

[5]  K. Schmitt,et al.  Dynamic polarization in the Coulomb breakup of loosely bound 17F , 2009 .

[6]  K. Flanagan,et al.  Experimental study of {sup 84}Ga {beta} decay: Evidence for a rapid onset of collectivity in the vicinity of {sup 78}Ni , 2009 .

[7]  C. Mazzocchi,et al.  Large /?-Delayed Neutron Emission Probabilities in the 78Ni Region , 2009 .

[8]  W. Loveland,et al.  Evaporation residue yields in reactions of heavy neutron‐rich radioactive ion beams with 64Ni and 96Zr targets , 2009 .

[9]  T. Teranishi,et al.  Neutron capture cross section of C 14 of astrophysical interest studied by Coulomb breakup of C 15 , 2009 .

[10]  D. Radford,et al.  Nuclear Structure Studies with Radioactive Ion Beams in the Mass A = 80 Region , 2009 .

[11]  M. S. Smith,et al.  Direct measurements of (p,$ \gamma$) cross-sections at astrophysical energies using radioactive beams and the Daresbury Recoil Separator , 2009 .

[12]  M. S. Smith,et al.  First Direct Measurement of the 17F(p,gamma)18Ne Cross Section. , 2008, Physical review letters.

[13]  A. Saastamoinen,et al.  Evolution of the N=50 shell gap energy towards 78Ni. , 2008, Physical review letters.

[14]  C. -. Yu,et al.  Measurement of g factors of excited states in radioactive beams by the transient field technique: 132Te , 2008 .

[15]  M. S. Smith,et al.  Neutron capture on 130Sn during r-process freeze-out , 2008, 0806.3895.

[16]  C. -. Yu,et al.  Shell Structure Beyond the Proton Drip Line Studied via Proton Emission from Deformed 141Ho , 2008 .

[17]  T. Kuo,et al.  Shell-model studies on exotic nuclei around 132Sn , 2008, 0802.2608.

[18]  N. Giai,et al.  Effects of the particle-particle channel on properties of low-lying vibrational states , 2007, 0711.2423.

[19]  F Ibrahim,et al.  Coulomb excitation of neutron-rich Zn isotopes: first observation of the 2(1)+ state in 80Zn. , 2007, Physical review letters.

[20]  N. Stone,et al.  Recoil in vacuum for Te ions: Calibration, models, and applications to radioactive-beam g-factor measurements , 2007 .

[21]  D. Bardayan,et al.  Development of a high solid-angle silicon detector array for measurement of transfer reactions in inverse kinematics , 2007 .

[22]  M. S. Smith,et al.  Recent results of experiments with radioactive 21Na and 7Be ion beams , 2007 .

[23]  C. Mazzocchi,et al.  Rare isotope discoveries with digital electronics , 2007 .

[24]  B. Brandt,et al.  Recent Progress in the Development of a Polarized Proton Target for Reactions with Radioactive Ion Beams , 2007 .

[25]  W. Loveland Synthesis of transactinide nuclei using radioactive beams , 2007 .

[26]  J. K. Hwang,et al.  α Decay of I109 and Its Implications for the Proton Decay of Sb105 and the Astrophysical Rapid Proton-Capture Process , 2007 .

[27]  A. Piechaczek,et al.  Development of a high resolution isobar separator for study of exotic decays , 2007 .

[28]  D. Pang,et al.  Are spectroscopic factors from transfer reactions consistent with asymptotic normalization coefficients , 2007, nucl-th/0701068.

[29]  M. Salazar-Villanueva,et al.  Inestabilidades vibracionales y esfuerzo ideal en el cùmulo de Si7 , 2007 .

[30]  L. Coraggio,et al.  Structure of exotic nuclei around double shell closures , 2006, nucl-th/0611061.

[31]  J. Cizewski Activities of the Center of Excellence for Radioactive Ion Beam Studies for Stewardship Science , 2006 .

[32]  C. Brune,et al.  Neutron single particle strengths from the (d,p) reaction on F18 , 2006 .

[33]  R. Donangelo,et al.  Fusion and breakup of weakly bound nuclei , 2006 .

[34]  S. Novotny,et al.  A high-efficiency compact setup to study evaporation residues formed in reactions induced by low-intensity radioactive ion beams , 2005 .

[35]  M. Dasgupta,et al.  A new framework to investigate the systematics of fusion probabilities in heavy element formation : Application to Th isotopes , 2005 .

[36]  N. Stone,et al.  First nuclear moment measurement with radioactive beams by the recoil-in-vacuum technique: the g factor of the 2+1 state in 132Te. , 2005, Physical review letters.

[37]  C. Mazzocchi,et al.  A novel way of doing decay spectroscopy at a radioactive ion beam facility , 2005 .

[38]  C. -. Yu,et al.  Coulomb excitation and transfer reactions with rare neutron-rich isotopes , 2005 .

[39]  B. A. Brown,et al.  B(E2) upward arrow measurements for radioactive neutron-rich ge isotopes: reaching the N=50 closed shell. , 2005, Physical review letters.

[40]  Studies of (p, γ) reactions with the Daresbury Recoil Separator at ORNL'S HRIBF , 2005 .

[41]  M. S. Smith,et al.  First study of the level structure of the r-process nucleus {sup 83}Ge , 2005 .

[42]  G. Bertsch,et al.  Reconciling coulomb dissociation and radiative capture measurements. , 2005, Physical review letters.

[43]  G. Mathews,et al.  Inhomogeneous Big Bang Nucleosynthesis with a New Neutron Lifetime , 2004, astro-ph/0408523.

[44]  G. Alton,et al.  Targets used in the production of radioactive ion beams at the HRIBF , 2004 .

[45]  K. Rehm,et al.  NUCLEAR ASTROPHYSICS MEASUREMENTS WITH RADIOACTIVE BEAMS , 2003 .

[46]  C. -. Yu,et al.  Coulomb excitation measurements of transition strengths in the isotopes 132, 134Sn , 2003 .

[47]  V. Zagrebaev Sub-barrier fusion enhancement due to neutron transfer , 2003 .

[48]  Robert Grzywacz,et al.  Applications of digital pulse processing in nuclear spectroscopy , 2003 .

[49]  D. Stracener Status of radioactive ion beams at the HRIBF , 2003 .

[50]  W. Loveland,et al.  Enhanced fusion-evaporation cross sections in neutron-rich 132Sn on 64Ni. , 2003, Physical review letters.

[51]  C. -. Yu,et al.  Fine structure in proton emission from 145Tm discovered with digital signal processing. , 2003, Physical review letters.

[52]  W. Hix,et al.  Strength of the 18F(p, α)15O resonance at Ec.m. = 330 keV , 2002 .

[53]  G. Bertsch,et al.  Dynamic polarization in the Coulomb dissociation of8B , 2002 .

[54]  W. Nazarewicz,et al.  Anomalous behavior of 2 ¿ excitations around 132 Sn , 2002, nucl-th/0208042.

[55]  T. A. Lewis,et al.  Coulomb excitation of radioactive 132,134,136Te beams and the low B(E2) of 136Te. , 2002, Physical review letters.

[56]  M. S. Smith,et al.  Nuclear physics at Oak Ridge National Laboratory , 2002 .

[57]  K. Kratz,et al.  Status of delayed-neutron precursor data: half-lives and neutron emission probabilities , 2001, nucl-ex/0106020.

[58]  P. Parker,et al.  Destruction of [Formula Presented] via [Formula Presented] burning through the [Formula Presented] keV resonance , 2001 .

[59]  G. Alton,et al.  A new concept kinetic-ejection negative-ion source for rib generation , 2000 .

[60]  P. Parker,et al.  Observation of the astrophysically important 3+ state in 18Ne via elastic scattering of a radioactive 17F beam from 1H , 1999 .

[61]  I. Lee,et al.  Gamma-ray tracking detectors , 1999 .

[62]  J. Breitenbach,et al.  First on-line results for As and F beams from HRIBF target/ion sources , 1997 .

[63]  K. Aleklett,et al.  Delayed-Neutron Branching Ratios of Precursors in the Fission Product Region , 1993 .

[64]  H. L. Ravn,et al.  Ion source with combined cathode and transfer line heating , 1992 .

[65]  Parker,et al.  The "missing" 3(+) state of 18Ne and explosive 17F(p, gamma ) burning. , 1991, Physical review. C, Nuclear physics.

[66]  P. Stelson Neutron flow between nuclei as the principal enhancement mechanism in heavy-ion subbarrier fusion☆ , 1988 .

[67]  Ian J. Thompson,et al.  Coupled reaction channels calculations in nuclear physics , 1988 .

[68]  P. Tikkanen,et al.  TRANSITION PROBABILITY FROM THE GROUND TO THE FIRST-EXCITED 2+ STATE OF EVEN–EVEN NUCLIDES , 2001 .

[69]  Freeman,et al.  Fission following fusion of Ni+Sn. , 1986, Physical review. C, Nuclear physics.

[70]  H. Rebel,et al.  Coulomb dissociation as a source of information on radiative capture processes of astrophysical interest , 1986 .

[71]  C. A. Ludemann,et al.  The holifield heavy ion research facility , 1986 .

[72]  F. Hessberger,et al.  Fusion probability of symmetric heavy, nuclear systems determined from evaporation-residue cross sections , 1985 .

[73]  Back Complete fusion and quasifission in reactions between heavy ions. , 1985, Physical review. C, Nuclear physics.

[74]  T. Humanic,et al.  Neutron-excess dependence of fusion-Ni+Sn , 1983 .

[75]  W. Swiatecki,et al.  Dynamical aspects of nucleus-nucleus collisions , 1982 .

[76]  W. J. Swiatecki,et al.  THE DYNAMICS OF NUCLEAR COALESCENCE OR RESEPARATION , 1981 .

[77]  P. Brentano,et al.  (d,p) reactions onSn124,Te130,Ba138,Ce140,Nd142, andPb208below and near the Coulomb barrier , 1977 .

[78]  E. D. Hudson,et al.  UNIQUE FEATURES IN THE OAK RIDGE ISOCHRONOUS CYCLOTRON , 1962 .