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  • American Institute of Physics (AIP)  (3,497)
  • Springer Nature  (1,488)
  • American Association for the Advancement of Science (AAAS)  (1,369)
  • American Association for the Advancement of Science  (627)
  • 2000-2004  (4,322)
  • 1995-1999  (2,659)
  • 1980-1984
  • 1940-1944
  • 2002  (2,004)
  • 2000  (2,318)
  • 1995  (2,659)
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  • 2000-2004  (4,322)
  • 1995-1999  (2,659)
  • 1980-1984
  • 1940-1944
Year
  • 1
    Publication Date: 2000-03-25
    Description: The fly Drosophila melanogaster is one of the most intensively studied organisms in biology and serves as a model system for the investigation of many developmental and cellular processes common to higher eukaryotes, including humans. We have determined the nucleotide sequence of nearly all of the approximately 120-megabase euchromatic portion of the Drosophila genome using a whole-genome shotgun sequencing strategy supported by extensive clone-based sequence and a high-quality bacterial artificial chromosome physical map. Efforts are under way to close the remaining gaps; however, the sequence is of sufficient accuracy and contiguity to be declared substantially complete and to support an initial analysis of genome structure and preliminary gene annotation and interpretation. The genome encodes approximately 13,600 genes, somewhat fewer than the smaller Caenorhabditis elegans genome, but with comparable functional diversity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adams, M D -- Celniker, S E -- Holt, R A -- Evans, C A -- Gocayne, J D -- Amanatides, P G -- Scherer, S E -- Li, P W -- Hoskins, R A -- Galle, R F -- George, R A -- Lewis, S E -- Richards, S -- Ashburner, M -- Henderson, S N -- Sutton, G G -- Wortman, J R -- Yandell, M D -- Zhang, Q -- Chen, L X -- Brandon, R C -- Rogers, Y H -- Blazej, R G -- Champe, M -- Pfeiffer, B D -- Wan, K H -- Doyle, C -- Baxter, E G -- Helt, G -- Nelson, C R -- Gabor, G L -- Abril, J F -- Agbayani, A -- An, H J -- Andrews-Pfannkoch, C -- Baldwin, D -- Ballew, R M -- Basu, A -- Baxendale, J -- Bayraktaroglu, L -- Beasley, E M -- Beeson, K Y -- Benos, P V -- Berman, B P -- Bhandari, D -- Bolshakov, S -- Borkova, D -- Botchan, M R -- Bouck, J -- Brokstein, P -- Brottier, P -- Burtis, K C -- Busam, D A -- Butler, H -- Cadieu, E -- Center, A -- Chandra, I -- Cherry, J M -- Cawley, S -- Dahlke, C -- Davenport, L B -- Davies, P -- de Pablos, B -- Delcher, A -- Deng, Z -- Mays, A D -- Dew, I -- Dietz, S M -- Dodson, K -- Doup, L E -- Downes, M -- Dugan-Rocha, S -- Dunkov, B C -- Dunn, P -- Durbin, K J -- Evangelista, C C -- Ferraz, C -- Ferriera, S -- Fleischmann, W -- Fosler, C -- Gabrielian, A E -- Garg, N S -- Gelbart, W M -- Glasser, K -- Glodek, A -- Gong, F -- Gorrell, J H -- Gu, Z -- Guan, P -- Harris, M -- Harris, N L -- Harvey, D -- Heiman, T J -- Hernandez, J R -- Houck, J -- Hostin, D -- Houston, K A -- Howland, T J -- Wei, M H -- Ibegwam, C -- Jalali, M -- Kalush, F -- Karpen, G H -- Ke, Z -- Kennison, J A -- Ketchum, K A -- Kimmel, B E -- Kodira, C D -- Kraft, C -- Kravitz, S -- Kulp, D -- Lai, Z -- Lasko, P -- Lei, Y -- Levitsky, A A -- Li, J -- Li, Z -- Liang, Y -- Lin, X -- Liu, X -- Mattei, B -- McIntosh, T C -- McLeod, M P -- McPherson, D -- Merkulov, G -- Milshina, N V -- Mobarry, C -- Morris, J -- Moshrefi, A -- Mount, S M -- Moy, M -- Murphy, B -- Murphy, L -- Muzny, D M -- Nelson, D L -- Nelson, D R -- Nelson, K A -- Nixon, K -- Nusskern, D R -- Pacleb, J M -- Palazzolo, M -- Pittman, G S -- Pan, S -- Pollard, J -- Puri, V -- Reese, M G -- Reinert, K -- Remington, K -- Saunders, R D -- Scheeler, F -- Shen, H -- Shue, B C -- Siden-Kiamos, I -- Simpson, M -- Skupski, M P -- Smith, T -- Spier, E -- Spradling, A C -- Stapleton, M -- Strong, R -- Sun, E -- Svirskas, R -- Tector, C -- Turner, R -- Venter, E -- Wang, A H -- Wang, X -- Wang, Z Y -- Wassarman, D A -- Weinstock, G M -- Weissenbach, J -- Williams, S M -- WoodageT -- Worley, K C -- Wu, D -- Yang, S -- Yao, Q A -- Ye, J -- Yeh, R F -- Zaveri, J S -- Zhan, M -- Zhang, G -- Zhao, Q -- Zheng, L -- Zheng, X H -- Zhong, F N -- Zhong, W -- Zhou, X -- Zhu, S -- Zhu, X -- Smith, H O -- Gibbs, R A -- Myers, E W -- Rubin, G M -- Venter, J C -- P50-HG00750/HG/NHGRI NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2000 Mar 24;287(5461):2185-95.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Celera Genomics, 45 West Gude Drive, Rockville, MD 20850, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10731132" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport/genetics ; Chromatin/genetics ; Cloning, Molecular ; Computational Biology ; Contig Mapping ; Cytochrome P-450 Enzyme System/genetics ; DNA Repair/genetics ; DNA Replication/genetics ; Drosophila melanogaster/*genetics/metabolism ; Euchromatin ; Gene Library ; Genes, Insect ; *Genome ; Heterochromatin/genetics ; Insect Proteins/chemistry/genetics/physiology ; Nuclear Proteins/genetics ; Protein Biosynthesis ; *Sequence Analysis, DNA ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2002-06-01
    Description: The high degree of similarity between the mouse and human genomes is demonstrated through analysis of the sequence of mouse chromosome 16 (Mmu 16), which was obtained as part of a whole-genome shotgun assembly of the mouse genome. The mouse genome is about 10% smaller than the human genome, owing to a lower repetitive DNA content. Comparison of the structure and protein-coding potential of Mmu 16 with that of the homologous segments of the human genome identifies regions of conserved synteny with human chromosomes (Hsa) 3, 8, 12, 16, 21, and 22. Gene content and order are highly conserved between Mmu 16 and the syntenic blocks of the human genome. Of the 731 predicted genes on Mmu 16, 509 align with orthologs on the corresponding portions of the human genome, 44 are likely paralogous to these genes, and 164 genes have homologs elsewhere in the human genome; there are 14 genes for which we could find no human counterpart.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mural, Richard J -- Adams, Mark D -- Myers, Eugene W -- Smith, Hamilton O -- Miklos, George L Gabor -- Wides, Ron -- Halpern, Aaron -- Li, Peter W -- Sutton, Granger G -- Nadeau, Joe -- Salzberg, Steven L -- Holt, Robert A -- Kodira, Chinnappa D -- Lu, Fu -- Chen, Lin -- Deng, Zuoming -- Evangelista, Carlos C -- Gan, Weiniu -- Heiman, Thomas J -- Li, Jiayin -- Li, Zhenya -- Merkulov, Gennady V -- Milshina, Natalia V -- Naik, Ashwinikumar K -- Qi, Rong -- Shue, Bixiong Chris -- Wang, Aihui -- Wang, Jian -- Wang, Xin -- Yan, Xianghe -- Ye, Jane -- Yooseph, Shibu -- Zhao, Qi -- Zheng, Liansheng -- Zhu, Shiaoping C -- Biddick, Kendra -- Bolanos, Randall -- Delcher, Arthur L -- Dew, Ian M -- Fasulo, Daniel -- Flanigan, Michael J -- Huson, Daniel H -- Kravitz, Saul A -- Miller, Jason R -- Mobarry, Clark M -- Reinert, Knut -- Remington, Karin A -- Zhang, Qing -- Zheng, Xiangqun H -- Nusskern, Deborah R -- Lai, Zhongwu -- Lei, Yiding -- Zhong, Wenyan -- Yao, Alison -- Guan, Ping -- Ji, Rui-Ru -- Gu, Zhiping -- Wang, Zhen-Yuan -- Zhong, Fei -- Xiao, Chunlin -- Chiang, Chia-Chien -- Yandell, Mark -- Wortman, Jennifer R -- Amanatides, Peter G -- Hladun, Suzanne L -- Pratts, Eric C -- Johnson, Jeffery E -- Dodson, Kristina L -- Woodford, Kerry J -- Evans, Cheryl A -- Gropman, Barry -- Rusch, Douglas B -- Venter, Eli -- Wang, Mei -- Smith, Thomas J -- Houck, Jarrett T -- Tompkins, Donald E -- Haynes, Charles -- Jacob, Debbie -- Chin, Soo H -- Allen, David R -- Dahlke, Carl E -- Sanders, Robert -- Li, Kelvin -- Liu, Xiangjun -- Levitsky, Alexander A -- Majoros, William H -- Chen, Quan -- Xia, Ashley C -- Lopez, John R -- Donnelly, Michael T -- Newman, Matthew H -- Glodek, Anna -- Kraft, Cheryl L -- Nodell, Marc -- Ali, Feroze -- An, Hui-Jin -- Baldwin-Pitts, Danita -- Beeson, Karen Y -- Cai, Shuang -- Carnes, Mark -- Carver, Amy -- Caulk, Parris M -- Center, Angela -- Chen, Yen-Hui -- Cheng, Ming-Lai -- Coyne, My D -- Crowder, Michelle -- Danaher, Steven -- Davenport, Lionel B -- Desilets, Raymond -- Dietz, Susanne M -- Doup, Lisa -- Dullaghan, Patrick -- Ferriera, Steven -- Fosler, Carl R -- Gire, Harold C -- Gluecksmann, Andres -- Gocayne, Jeannine D -- Gray, Jonathan -- Hart, Brit -- Haynes, Jason -- Hoover, Jeffery -- Howland, Tim -- Ibegwam, Chinyere -- Jalali, Mena -- Johns, David -- Kline, Leslie -- Ma, Daniel S -- MacCawley, Steven -- Magoon, Anand -- Mann, Felecia -- May, David -- McIntosh, Tina C -- Mehta, Somil -- Moy, Linda -- Moy, Mee C -- Murphy, Brian J -- Murphy, Sean D -- Nelson, Keith A -- Nuri, Zubeda -- Parker, Kimberly A -- Prudhomme, Alexandre C -- Puri, Vinita N -- Qureshi, Hina -- Raley, John C -- Reardon, Matthew S -- Regier, Megan A -- Rogers, Yu-Hui C -- Romblad, Deanna L -- Schutz, Jakob -- Scott, John L -- Scott, Richard -- Sitter, Cynthia D -- Smallwood, Michella -- Sprague, Arlan C -- Stewart, Erin -- Strong, Renee V -- Suh, Ellen -- Sylvester, Karena -- Thomas, Reginald -- Tint, Ni Ni -- Tsonis, Christopher -- Wang, Gary -- Wang, George -- Williams, Monica S -- Williams, Sherita M -- Windsor, Sandra M -- Wolfe, Keriellen -- Wu, Mitchell M -- Zaveri, Jayshree -- Chaturvedi, Kabir -- Gabrielian, Andrei E -- Ke, Zhaoxi -- Sun, Jingtao -- Subramanian, Gangadharan -- Venter, J Craig -- Pfannkoch, Cynthia M -- Barnstead, Mary -- Stephenson, Lisa D -- New York, N.Y. -- Science. 2002 May 31;296(5573):1661-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Celera Genomics, 45 West Gude Drive, Rockville, MD 20850, USA. richard.mural@celera.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12040188" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Chromosomes/*genetics ; Chromosomes, Human/genetics ; Computational Biology ; Conserved Sequence ; Databases, Nucleic Acid ; Evolution, Molecular ; Genes ; Genetic Markers ; *Genome ; *Genome, Human ; Genomics ; Humans ; Mice ; Mice, Inbred A/genetics ; Mice, Inbred DBA/genetics ; Mice, Inbred Strains/*genetics ; Molecular Sequence Data ; Physical Chromosome Mapping ; Proteins/chemistry/genetics ; Sequence Alignment ; *Sequence Analysis, DNA ; Species Specificity ; *Synteny
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Stimulated Brillouin backscatter from large scale-length gas-filled targets has been measured on the Nova laser. These targets were designed to approximate conditions in indirect drive ignition target designs in underdense plasma electron density (ne∼1021/cm3), temperature (Te(approximately-greater-than)3 keV), and gradient scale lengths (Ln∼2 mm, Lv(approximately-greater-than)6 mm) as well as calculated gain for stimulated Brillouin scattering (SBS). The targets used in these experiments were gas-filled balloons with polyimide walls (gasbags) and gas-filled hohlraums. Detailed characterization using x-ray imaging and x-ray and optical spectroscopy verifies that the calculated plasma conditions are achieved. Time-resolved SBS backscatter from these targets is 〈3% for conditions similar to ignition target designs. © 1995 American Institute of Physics.
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  • 4
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In the Tokamak Fusion Test Reactor (TFTR) [K. M. McGuire et al., Phys. Plasmas 2, 2176 (1995)] a substantial improvement in fusion performance has been realized by combining the enhanced confinement due to tritium fueling with the enhanced confinement due to extensive conditioning of the limiter with lithium. This combination has resulted in not only significantly higher global energy confinement times than have previously been obtained in high current supershots, but also in the highest central ratio of thermonuclear fusion output power to input power observed to date. © 1995 American Institute of Physics.
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  • 5
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Large plasmas are created by illuminating gas-filled thin-walled balloon-like targets using the Nova laser [E. Campbell et al., Rev. Sci. Instrum. 57, 2101 (1986)]. The targets consist of a 5000–6000 A(ring) skin surrounding 1 atm of neopentane, which, when ionized, becomes a plasma with an electron density of 1021 electrons/cm3. X-ray images of the gas bag target are used to evaluate the size and uniformity of the plasma by comparison with LASNEX [R. M. More, J. Quant. Spectrosc. Radiat. Transfer 27, 345 (1982)] simulations. The gas bags are heated with converging and diverging beam spots. The most uniform plasmas are created by illuminating the target with large converging beam spots that overlap to cover most of the surface of the gas bag. The gas bag plasma is heated to a peak temperature of approximately 3.5 keV, with 25 kJ of 3ω laser light in a 1 ns square pulse. © 1995 American Institute of Physics.
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  • 6
    Publication Date: 1995-03-03
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2002-10-05
    Description: Anopheles gambiae is the principal vector of malaria, a disease that afflicts more than 500 million people and causes more than 1 million deaths each year. Tenfold shotgun sequence coverage was obtained from the PEST strain of A. gambiae and assembled into scaffolds that span 278 million base pairs. A total of 91% of the genome was organized in 303 scaffolds; the largest scaffold was 23.1 million base pairs. There was substantial genetic variation within this strain, and the apparent existence of two haplotypes of approximately equal frequency ("dual haplotypes") in a substantial fraction of the genome likely reflects the outbred nature of the PEST strain. The sequence produced a conservative inference of more than 400,000 single-nucleotide polymorphisms that showed a markedly bimodal density distribution. Analysis of the genome sequence revealed strong evidence for about 14,000 protein-encoding transcripts. Prominent expansions in specific families of proteins likely involved in cell adhesion and immunity were noted. An expressed sequence tag analysis of genes regulated by blood feeding provided insights into the physiological adaptations of a hematophagous insect.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holt, Robert A -- Subramanian, G Mani -- Halpern, Aaron -- Sutton, Granger G -- Charlab, Rosane -- Nusskern, Deborah R -- Wincker, Patrick -- Clark, Andrew G -- Ribeiro, Jose M C -- Wides, Ron -- Salzberg, Steven L -- Loftus, Brendan -- Yandell, Mark -- Majoros, William H -- Rusch, Douglas B -- Lai, Zhongwu -- Kraft, Cheryl L -- Abril, Josep F -- Anthouard, Veronique -- Arensburger, Peter -- Atkinson, Peter W -- Baden, Holly -- de Berardinis, Veronique -- Baldwin, Danita -- Benes, Vladimir -- Biedler, Jim -- Blass, Claudia -- Bolanos, Randall -- Boscus, Didier -- Barnstead, Mary -- Cai, Shuang -- Center, Angela -- Chaturverdi, Kabir -- Christophides, George K -- Chrystal, Mathew A -- Clamp, Michele -- Cravchik, Anibal -- Curwen, Val -- Dana, Ali -- Delcher, Art -- Dew, Ian -- Evans, Cheryl A -- Flanigan, Michael -- Grundschober-Freimoser, Anne -- Friedli, Lisa -- Gu, Zhiping -- Guan, Ping -- Guigo, Roderic -- Hillenmeyer, Maureen E -- Hladun, Susanne L -- Hogan, James R -- Hong, Young S -- Hoover, Jeffrey -- Jaillon, Olivier -- Ke, Zhaoxi -- Kodira, Chinnappa -- Kokoza, Elena -- Koutsos, Anastasios -- Letunic, Ivica -- Levitsky, Alex -- Liang, Yong -- Lin, Jhy-Jhu -- Lobo, Neil F -- Lopez, John R -- Malek, Joel A -- McIntosh, Tina C -- Meister, Stephan -- Miller, Jason -- Mobarry, Clark -- Mongin, Emmanuel -- Murphy, Sean D -- O'Brochta, David A -- Pfannkoch, Cynthia -- Qi, Rong -- Regier, Megan A -- Remington, Karin -- Shao, Hongguang -- Sharakhova, Maria V -- Sitter, Cynthia D -- Shetty, Jyoti -- Smith, Thomas J -- Strong, Renee -- Sun, Jingtao -- Thomasova, Dana -- Ton, Lucas Q -- Topalis, Pantelis -- Tu, Zhijian -- Unger, Maria F -- Walenz, Brian -- Wang, Aihui -- Wang, Jian -- Wang, Mei -- Wang, Xuelan -- Woodford, Kerry J -- Wortman, Jennifer R -- Wu, Martin -- Yao, Alison -- Zdobnov, Evgeny M -- Zhang, Hongyu -- Zhao, Qi -- Zhao, Shaying -- Zhu, Shiaoping C -- Zhimulev, Igor -- Coluzzi, Mario -- della Torre, Alessandra -- Roth, Charles W -- Louis, Christos -- Kalush, Francis -- Mural, Richard J -- Myers, Eugene W -- Adams, Mark D -- Smith, Hamilton O -- Broder, Samuel -- Gardner, Malcolm J -- Fraser, Claire M -- Birney, Ewan -- Bork, Peer -- Brey, Paul T -- Venter, J Craig -- Weissenbach, Jean -- Kafatos, Fotis C -- Collins, Frank H -- Hoffman, Stephen L -- R01AI44273/AI/NIAID NIH HHS/ -- U01AI48846/AI/NIAID NIH HHS/ -- U01AI50687/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2002 Oct 4;298(5591):129-49.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Celera Genomics, 45 West Gude Drive, Rockville, MD 20850, USA. robert.holt@celera.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12364791" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/classification/*genetics/parasitology/physiology ; Biological Evolution ; Blood ; Chromosome Inversion ; Chromosomes, Artificial, Bacterial ; Computational Biology ; DNA Transposable Elements ; Digestion ; Drosophila melanogaster/genetics ; Enzymes/chemistry/genetics/metabolism ; Expressed Sequence Tags ; Feeding Behavior ; Gene Expression Regulation ; *Genes, Insect ; Genetic Variation ; *Genome ; Haplotypes ; Humans ; Insect Proteins/chemistry/genetics/physiology ; Insect Vectors/genetics/parasitology/physiology ; Malaria, Falciparum/transmission ; Molecular Sequence Data ; Mosquito Control ; Physical Chromosome Mapping ; Plasmodium falciparum/growth & development ; Polymorphism, Single Nucleotide ; Proteome ; *Sequence Analysis, DNA ; Species Specificity ; Transcription Factors/chemistry/genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: With the first injection of neutral beams into the National Spherical Torus Experiment (NSTX) [Ono et al., Nucl. Fusion 40, 557 (2000)], a broad spectrum of fluctuations consisting of nearly equally spaced peaks in the frequency range from about 0.2 to 1.2 times the ion cyclotron frequency was observed. The frequencies scale with toroidal field and plasma density consistently with Alfvén waves. From these and other observations, the modes have been identified as compressional Alfvén eigenmodes (CAE). It has also recently been found that the ratio of the measured ion and electron temperatures in NSTX during neutral beam heating is anomalously high [Bell, Bull. Am. Phys. Soc. 46, 206 (2001)]. To explain the anomaly in the ratio of ion to electron temperature, it has been suggested that the CAE, driven by the beam ions, stochastically heat the thermal ions [Gates et al., Phys. Rev. Lett. 87, 205003 (2001)]. In this paper it is shown through studies of the power balance that stochastic heating of the thermal ions by the observed CAE alone is not solely responsible for the anomaly in the ion to electron temperature ratio. © 2002 American Institute of Physics.
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  • 9
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Good radiation drive symmetry will be crucial for achieving ignition in laboratory inertial fusion experiments. The indirect-drive inertial confinement fusion (ICF) method utilizes the soft x-ray field in a radiation-containing cavity, or hohlraum, to help achieve a high degree of symmetry. Achievement of the conditions necessary for ignition and gain will require experimental fine tuning of the drive symmetry. In order to make tuning possible, a significant effort has been devoted to developing symmetry measurement techniques. These techniques have been applied to a series of experiments that give a graphic picture of the symmetry conditions in the complex hohlraum environment. These experiments have been compared with detailed, fully integrated theoretical modeling. The ultimate goal of this work is the detailed understanding of symmetry conditions and the methods for their control. Comparison with experiments provides crucial benchmarking for the modeling—a key element in planning for ignition. © 1995 American Institute of Physics.
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  • 10
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We report on the production and characterization of large scale-length plasmas created by illuminating gas-filled thin-walled balloonlike targets using the Nova laser. The targets consisted of a 5–6000 A(ring) skin surrounding 1 atm of neopentane which when ionized becomes a plasma with 1021 electrons/cm3. Results are presented from x-ray imaging used to evaluate the uniformity of the plasma. The most uniform plasmas were produced by illuminating the target with large converging beams that overlapped to cover most of the surface of the gas bag. An alternate focus geometry using small beam spots resulted in a less uniform plasma with low density holes in it. © 1995 American Institute of Physics.
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