FY2010 - Oak Ridge National Laboratory

More documents

Recommendations

Info

Director’s R&D Fund— General supported by the DOE Office of Science for the studies of new super heavy nuclei, also helps the nuclear security and nuclear forensic fields, where the efficient detection of different kinds of radiation is important. These electronics may be operated in various modes adapting to changing experimental conditions thanks to their digital and programmable circuitry. While at present there are two laboratories capable and authorized to run intense 48 Ca and 50 Ti beams (above 1 particle-microampere) on radioactive trans-actinides targets (JINR Dubna, Russia, and GSI Darmstadt, Germany), two other laboratories are coming on-line and intending to pursue the super heavy elements studies, Spiral 2 part of GANIL at Caen, France, and RIKEN near Tokyo, Japan. Success of the current experiment on element Z=117 (with ORNL-produced target material) created a high demand for the continuation of trans-plutonium elements production and chemistry at HFIR/REDC. We expect it will lead to the creation of a new program at DOE targeting super-heavy element research. Already now, in addition to the ongoing joint project at Dubna, GSI Darmstadt and GANIL Caen are proposing collaboration with ORNL, to jointly continue research on super heavy elements. Within this project, 30 mg of 243 Am oxide were provided in September 2010 for a new joint experiment on Z=115 isotopes aiming for a direct Z-identification of SHE decay products, to be performed at the TASISpec facility (GSI, Darmstadt, Germany) in 2011. A new digital data acquisition system (concept developed through this project) is foreseen to be used in 2012 in the experiment searching a new element Z=120 at the SHIP facility (GSI Darmstadt). Results and Accomplishments Over 22 mg of 249 Bk activity (having a half-life of 320 days) were separated at the ORNL REDC, from over 50 g of curium and americium seed material irradiated with neutrons at the ORNL HFIR for about two years. The project co-author, J. Ezold (ORNL NSTD), was the trans-plutonium “campaign 74” manager at REDC. Following the Material Transfer and Scientific Collaboration Agreement, established in 2009 between ORNL and JINR Dubna, this material was transferred to Russia within three weeks after final purification. Six 249 Bk arc-shaped targets, suitable for irradiation with intense heavy-ions beams, were made at IAR Dimitrovgrad. The irradiations at the DGFRS started in July at the FLNR Dubna and lasted till the end of February 2010, with a total of about 150 days with beam on target and a total beam dose of 4.4 10 19 projectiles. K. Rykaczewski and J. Roberto participated in the experiment in August 2009 and September 2009. Two isotopes of new chemical element Z=117 were identified among fusionevaporation reaction products. Five decay chains of 293(117) isotope and one long decay chain starting at 294(117) isotope were observed, leading to the identification of 11 new super heavy nuclei. These results were published in Physical Review Letters 104, 142502 in April 2010. Measured alpha-decay properties for newly identified super heavy nuclei indicated an increased stability with larger neutron number. It represents an experimental verification for the existence of the predicted Island of (Enhanced) Stability for Super Heavy Elements. This publication triggered a lot of popular and scientific media attention—the news on the discovery of element 117 appeared in New York Times, Science, and Physics Today, and garnered over two hundred other articles. The new digital data acquisition system foreseen to be used during the search for Z>117 chemical elements has been designed by two project participants, R. Grzywacz and K. Rykaczewski. The first items related to this novel digital data acquisition system, the equipment and software, were delivered in September 2009. Further hardware purchases will follow the funding ($435,000) recently received from DOE for continuation of the studies on super heavy nuclei. 168
Director’s R&D Fund— General Information Shared Over two hundred articles in popular and scientific media, including New York Times (Apr. 7, 2010), Science (Apr. 15, 2010), and Physics Today. Ezold, J. 2009. Presentation to ORNL REDC. Ezold, J. 2010. Presentation at 21st International Conference on Applications of Accelerators in Research and Industry, Fort Worth, TX, Aug. 8–13. Ezold, J. 2010. Presentation at American Nuclear Society meeting, Knoxville, September. Hamilton, J. H., and Yu. Ts. Oganessian. 2010. Plenary talk at International Nuclear Physics Conference (INPC2010), Vancouver, Canada, July. Oganessian, Yu. Ts., F. Sh. Abdullin, P. D. Bailey, D. E. Benker, M. E. Bennett, S. N. Dmitriev, J. G. Ezold, J. H. Hamilton, R. A. Henderson, M. G. Itkis, Yu. V. Lobanov, A. N. Mezentsev, K. J. Moody, S. L. Nelson, A. N. Polyakov, C. E. Porter, A.V. Ramayya, F. D. Riley, J. B. Roberto, M. A. Ryabinin, K.P. Rykaczewski, R. N. Sagaidak, D. A. Shaughnessy, I. V. Shirokovsky, M. A. Stoyer, V. G. Subbotin, R. Sudowe, A. M. Sukhov, Yu. S. Tsyganov, V. K. Utyonkov, A. A. Voinov, G. K. Vostokin, and P. A. Wilk. 2010. “Synthesis of a New Element with Atomic Number Z = 117.” Phys. Rev. Lett. 104, 142502 (published Apr. 9). Roberto, J., 2010. Presentation at James Madison University, Harrisonburg, VA, Mar. 27. Roberto, J., 2010. Presentation at ORNL Lecture Series, Oak Ridge National Laboratory, Oak Ridge, TN, Apr. 30. Roberto, J., 2010. Plenary lecture at 21st International Conference on Applications of Accelerators in Research and Industry, Fort Worth, TX, Aug. 8–13. Roberto, J., 2010. Keynote lecture at National Organization of Test, Research, & Training Reactors (TRTR) and International Group on Research Reactors (IGORR) Conference, Knoxville, TN, Sept. 20. Roberto, J., 2010. Public lecture at the “Friends of ORNL” meeting. Roberto, J., 2010. Public lecture at ETEC meeting. Rykaczewski, K. 2010. “Decay studies at and beyond the limits of known nuclei.” Bulletin of the American Physical Society (BABS), October (contains abstracts of the APS Division of Nuclear Physics Meeting, Santa Fe, NM, November 2010). Rykaczewski, K. 2009. Presentation to Faculty of Physics, Warsaw University, Poland, May. Rykaczewski, K. 2009. Presentation to ORNL REDC, July. Rykaczewski, K. 2009. Presentation at Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (Hilton Waikoloa Village, Big Island, Hawaii, Oct. 16. Rykaczewski, K. 2010. Presentation at University of Tennessee, Knoxville, Apr. 26. Rykaczewski, K. 2010. Presentation at HRIBF DOE review, Oak Ridge National Laboratory, May 17. Rykaczewski, K. 2010. Invited talk at International Conference Nuclear Structure 2010, Berkeley, CA, Aug. 10. Rykaczewski, K. 2010. Presentation at DOE review of Isotope Program, Oak Ridge National Laboratory, Aug. 17. Rykaczewski, K. 2010. Presentation at Fall Meeting of American Physics Society Division of Nuclear Physics, Santa Fe, NM, November. 169
Page 1 and 2:
ORNL/PPA-2011/1 Laboratory Directed
Page 3:
ORNL/PPA-2011/1 Oak Ridge National
Page 6 and 7:
NEUTRON SCIENCES ..................
Page 8 and 9:
NATIONAL SECURITY SCIENCE AND TECHN
Page 10 and 11:
05887 Controlling the Catalytic Pro
Page 13 and 14:
Introduction INTRODUCTION The Labor
Page 15 and 16:
Introduction projects for next-gene
Page 17 and 18:
Introduction ― Develop new mode
Page 19 and 20:
Introduction To select the best and
Page 21 and 22:
Introduction Fig. 2. Distribution o
Page 23:
SUMMARIES OF PROJECTS SUPPORTED THR
Page 26 and 27:
Director’s R&D Fund— Science fo
Page 28 and 29:
Page 30 and 31:
Page 32 and 33:
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 53 and 54:
Director’s R&D Fund— Neutron Sc
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
05306 Structure and Structure Evolu
Page 67 and 68:
05404 Asynchronous In Situ Neutron
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Director’s R&D Fund— Ultrascale
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Director’s R&D Fund— Systems Bi
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117:
Page 120 and 121:
Director’s R&D Fund— Advanced E
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131: Director’s R&D Fund— Advanced E
Page 132 and 133: Director’s R&D Fund— Advanced E
Page 135 and 136: Director’s R&D Fund— Emerging S
Page 137 and 138: Director’s R&D Fund— Emerging S
Page 139: Director’s R&D Fund— Emerging S
Page 142 and 143: Director’s R&D Fund— Understand
Page 153 and 154: Director’s R&D Fund— National S
Page 163: 05573 Rapid Radiochemistry Applicat
Page 166 and 167: Director’s R&D Fund— Energy Sto
Page 176 and 177: Director’s R&D Fund— General Re
Page 178 and 179: Director’s R&D Fund— General de
Page 182 and 183: Director’s R&D Fund— General 05
Page 184 and 185: Director’s R&D Fund— General 20
Page 187 and 188: Seed Money Fund— Biosciences Divi
Page 193: Seed Money Fund— Biosciences Divi
Page 196 and 197: Seed Money Fund— Center for Nanop
Page 199 and 200: Seed Money Fund— Chemical Science
Page 205: Seed Money Fund— Chemical Science
Page 208 and 209: Seed Money Fund— Computational Sc
Page 210 and 211: Seed Money Fund— Computational Sc
Page 213 and 214: Seed Money Fund— Computer Science
Page 215 and 216: Seed Money Fund— Energy and Trans
Page 217 and 218: Seed Money Fund— Energy and Trans
Page 219: Seed Money Fund— Energy and Trans
Page 222 and 223: Seed Money Fund— Environmental Sc
Page 224 and 225: Seed Money Fund— Environmental Sc
Page 227 and 228: Seed Money Fund— Fusion Energy Di
Page 229 and 230: Seed Money Fund— Materials Scienc
Page 231 and 232:
Seed Money Fund— Materials Scienc
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Seed Money Fund— Measurement Scie
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
05858 Fabrication of Ultrathin Grap
Page 249 and 250:
Page 251:
Page 254 and 255:
Seed Money Fund— Global Nuclear S
Page 256 and 257:
Seed Money Fund— Neutron Scatteri
Page 259 and 260:
Seed Money Fund— Reactor and Nucl
Page 261 and 262:
Page 263 and 264:
Page 265:
Page 268 and 269:
Seed Money Fund— Physics Division
Page 270 and 271:
Seed Money Fund— Physics Division
Page 272 and 273:
Seed Money Fund— Research Acceler
Page 275 and 276:
Laboratory-Wide Fellowships— Wein
Page 277 and 278:
Page 279 and 280:
Page 281:
Page 284 and 285:
Laboratory-Wide Fellowships— Wign
Page 286 and 287:
Laboratory-Wide Fellowships— Wign
Page 288 and 289:
Index of Project Contributors Coope
Page 290 and 291:
Index of Project Contributors Mille
Page 292 and 293:
Index of Project Contributors Yang,
Page 294:
Index of Project Numbers 05501 ....
show all

FY2010 - Oak Ridge National Laboratory

Create successful ePaper yourself

Delete template?

Save as template?