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Performance of the DELPHI detector (1996)

Abreu, P. ; Adam, W. ; Adye, T. ; [weitere]

Elsevier

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1996; 378(1-2): 57-100. Published 1996 Aug 01. doi: 10.1016/0168-9002(96)00463-9.

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Publikationsdatum: 1996-08-01

Print ISSN: 0168-9002

Digitale ISSN: 1872-9576

Thema: Physik

Publiziert von Elsevier

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Laser–plasma interactions in ignition-scale hohlraum plasmas (1996)

MacGowan, B. J. ; Afeyan, B. B. ; Back, C. A. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Physics of Plasmas 3 (1996), S. 2029-2040

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ISSN: 1089-7674

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Scattering of laser light by stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) is a concern for indirect drive inertial confinement fusion (ICF). The hohlraum designs for the National Ignition Facility (NIF) raise particular concerns due to the large scale and homogeneity of the plasmas within them. Experiments at Nova have studied laser–plasma interactions within large scale length plasmas that mimic many of the characteristics of the NIF hohlraum plasmas. Filamentation and scattering of laser light by SBS and SRS have been investigated as a function of beam smoothing and plasma conditions. Narrowly collimated SRS backscatter has been observed from low density, low-Z, plasmas, which are representative of the plasma filling most of the NIF hohlraum. SBS backscatter is found to occur in the high-Z plasma of gold ablated from the wall. Both SBS and SRS are observed to be at acceptable levels in experiments using smoothing by spectral dispersion (SSD). © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.872000

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Enhancement of Tokamak Fusion Test Reactor performance by lithium conditioning (1996)

Mansfield, D. K. ; Hill, K. W. ; Strachan, J. D. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Physics of Plasmas 3 (1996), S. 1892-1897

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ISSN: 1089-7674

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Wall conditioning in the Tokamak Fusion Test Reactor (TFTR) [K. M. McGuire et al., Phys. Plasmas 2, 2176 (1995)] by injection of lithium pellets into the plasma has resulted in large improvements in deuterium–tritium fusion power production (up to 10.7 MW), the Lawson triple product (up to 1021 m−3 s keV), and energy confinement time (up to 330 ms). The maximum plasma current for access to high-performance supershots has been increased from 1.9 to 2.7 MA, leading to stable operation at plasma stored energy values greater than 5 MJ. The amount of lithium on the limiter and the effectiveness of its action are maximized through (1) distributing the Li over the limiter surface by injection of four Li pellets into Ohmic plasmas of increasing major and minor radius, and (2) injection of four Li pellets into the Ohmic phase of supershot discharges before neutral-beam heating is begun. © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.871984

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The CPLEAR detector at CERN (1996)

Adler, R. ; Albrecht, W. ; Alhalel, T. ; [weitere]

Elsevier

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1996; 379(1): 76-100. Published 1996 Sep 01. doi: 10.1016/0168-9002(96)00542-6.

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Publikationsdatum: 1996-09-01

Print ISSN: 0168-9002

Digitale ISSN: 1872-9576

Thema: Physik

Publiziert von Elsevier

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High critical current density superconducting tapes by epitaxial deposition of YBa2Cu3Ox thick films on biaxially textured metals (1996)

Goyal, A. ; Norton, D. P. ; Budai, J. D. ; [weitere]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 69 (1996), S. 1795-1797

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: A method to obtain long lengths of flexible, biaxially oriented substrates with smooth, chemically compatible surfaces for epitaxial growth of high-temperature superconductors is reported. The technique uses well established, industrially scalable, thermomechanical processes to impart a strong biaxial texture to a base metal. This is followed by vapor deposition of epitaxial buffer layers (metal and/or ceramic) to yield chemically compatible surfaces. Epitaxial YBa2Cu3Ox films grown on such substrates have critical current densities exceeding 105 A/cm2 at 77 K in zero field and have field dependencies similar to epitaxial films on single crystal ceramic substrates. Deposited conductors made using this technique offer a potential route for the fabrication of long lengths of high-Jc wire capable of carrying high currents in high magnetic fields and at elevated temperatures. © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.117489

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A Gene Map of the Human Genome (1996)

Schuler, G. D. ; Boguski, M. S. ; Stewart, E. A. ; [weitere]

American Association for the Advancement of Science

In: Science. 1996; 274(5287): 540-546. Published 1996 Oct 25. doi: 10.1126/science.274.5287.540.

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Publikationsdatum: 1996-10-25

Print ISSN: 0036-8075

Digitale ISSN: 1095-9203

Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von American Association for the Advancement of Science

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Large enhancement of deuteron polarization with frequency modulated microwaves (1996)

Adeva, B. ; Arik, E. ; Ahmad, S. ; [weitere]

Elsevier

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1996; 372(3): 339-343. Published 1996 Apr 01. doi: 10.1016/0168-9002(95)01376-8.

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Publikationsdatum: 1996-04-01

Print ISSN: 0168-9002

Digitale ISSN: 1872-9576

Thema: Physik

Publiziert von Elsevier

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Microwave proton source development for a high-current linac injector (invited)a) : Proceedings of the 6th international conference on ion sources (1996)

Sherman, J. ; Bolme, G. ; Geisik, C. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 67 (1996), S. 1296-1301

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ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: Powerful cw proton linear accelerators (100 mA at 0.5–1.0 GeV) are being proposed for spallation neutron-source applications. A 75-keV, 110-mA dc proton injector using a microwave ion source is being tested for these applications. It has achieved 80-keV, 110-mA hydrogen-ion-beam operation. Video and dc beam-current toroid diagnostics are operational, and an EPICS control system is also operational on the 75-keV injector. A technical base development program has also been carried out on a 50-keV injector obtained from Chalk River Laboratories, and it includes low-energy beam transport studies, ion source lifetime tests, and proton-fraction enhancement studies. Technical base results and the present status of the 75-keV injector will be presented. © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1146701

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