IEEE 1989 International Conference on Plasma Science最新文献_第10页

Ion beam-dense plasma interaction of ICF interest 离子束密集等离子体相互作用的ICF兴趣

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.165985

C. Deutsch

{"title":"Ion beam-dense plasma interaction of ICF interest","authors":"C. Deutsch","doi":"10.1109/PLASMA.1989.165985","DOIUrl":"https://doi.org/10.1109/PLASMA.1989.165985","url":null,"abstract":"Heavy-ion-dense-plasma interactions of interest in inertial confinement fusion (ICF) have been reviewed. Scaling laws show that within a Born-RPA approximation, the most excited target electrons exhibit the largest stopping capabilities. Thus, standard plasma discharges, fully ionized and conveniently placed on existing acceleration beam lines, behave as efficient benchmarks for testing the basic features of the ion-plasma interaction. The various experimental programs, together with the latest theoretical developments, have been examined. By coupling a hydrogen plasma to a tandem accelerator, transmission and energy losses of 2 MeV/u carbon and sulfur beams passing through a plasma target have been investigated. Fluctuations in beam transmission have been observed and attributed to a plasma lens effect. Energy loss measurements indicate an enhanced stopping power of the plasma relative to its cold matter equivalent. An enhanced energy loss of 333 MeV /sup 233/U ions in a hydrogen discharge plasma with a high degree of ionization has also been observed. The ion stopping in a plasma environment exceeds the stopping in cold matter by more than a factor of two. Measured stopping powers are in agreement with theoretical predictions for the energy loss of heavy ions in a hydrogen plasma.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131239317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The design of a 400 kV parallel plate electrostatic analyzer for use with the 2 MeV heavy ion beam probe 设计了一种与2mev重离子束探头配套使用的400kv并联平板静电分析仪

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166223

J. Resnick, K. Connor, T. Crowley, R. Hickok, J. F. Lewis

引用次数: 0

Confined discharge plasma sources for Z-pinch experiments 用于z捏缩实验的受限放电等离子体源

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166159

D. Hinshelwood, P. Goodrich, G. Mehlman, V. Scherrer, S. Stephanakis, B. L. Welch, F. Young

{"title":"Confined discharge plasma sources for Z-pinch experiments","authors":"D. Hinshelwood, P. Goodrich, G. Mehlman, V. Scherrer, S. Stephanakis, B. L. Welch, F. Young","doi":"10.1109/PLASMA.1989.166159","DOIUrl":"https://doi.org/10.1109/PLASMA.1989.166159","url":null,"abstract":"The authors have investigated Z-pinch implosion on the NRL Gamble II generator using metallic sources of sodium and aluminum and nonmetallic sources of sodium (NaF), magnesium (MgF/sub 2/), and aluminum (Al/sub 2/O/sub 3/). For 1-MA driving currents, peak K-shell radiated power of about 100 GW and energies of about 1.5 kJ have been obtained with both pure aluminum and NaF implosions. The aluminum results are comparable to those in previous Gamble II experiments with aluminum wire arrays. The work has been motivated by the need for a sodium source for Na/Ne X-ray laser experiments. Confined discharge sources have been used to generate tens of gigawatts in the Na and He- alpha pump line, and fluorescence of the neon has been observed. The effects of nozzle shape and size, chamber diameter, amount of fuse material, and confined discharge current have been investigated in Gamble II implosion experiments. The studies indicate that confined discharge sources are capable of supplying significantly more material than required for implosions at the 1-MA level, so that this technique could be extended to higher current generators.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121062359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Relativistic electron beam transport in high pressure gases: a warm fluid treatment of nose physics 高压气体中的相对论电子束输运:鼻物理的热流体处理

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166076

R. Roubaud, P. Maggi-Videlaine

引用次数: 0

Nuclear radiation analysis of the IGNITEX experiment IGNITEX实验的核辐射分析

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166020

D. Palmrose, T. Parish, R. Carrera, N. Hertel, G. Miller

{"title":"Nuclear radiation analysis of the IGNITEX experiment","authors":"D. Palmrose, T. Parish, R. Carrera, N. Hertel, G. Miller","doi":"10.1109/PLASMA.1989.166020","DOIUrl":"https://doi.org/10.1109/PLASMA.1989.166020","url":null,"abstract":"The fusion ignition experiment IGNITEX is designed to produce DT-ignited plasmas for scientific study inexpensively. The IGNITEX device will use a single-turn, toroidal field magnet and will rely solely on ohmic heating for obtaining ignition conditions. One-dimensional transport calculations using ANISN and the CLAW-IV cross-section library have been performed to determine the neutron and prompt photon fluxes throughout the IGNITEX device. The REAC2 activation and decay code has been used to calculate activation, decay heat, and photon source from radioactive decay. The time-dependent radioactive material inventories from REAC 2 were also used to specify the photon source for ANISN calculations to estimate the dose rate at various positions inside and outside the device as a function of operating history. The results of the radiation transport analyses indicate several desirable features for IGNITEX. All of the long-lived activation products will meet the criteria for disposal as low-level waste by orders of magnitude. Activation of air is lower than that predicted for other ignition experiments in which the plasma column is not shielded by the magnets. The location of the cryostat on the outside of the thick copper coil reduces liquid nitrogen activation and makes tritium production in the cryostat negligible. The area just outside of the magnet should be accessible for maintenance after two days of decay.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116473504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generalized Langevin equation for plasma turbulence 等离子体湍流的广义Langevin方程

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.165989

H. Xia, O. Ishihara

引用次数: 0

Basis: setting the scientist free 基础:释放科学家

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166262

P. Dubois

引用次数: 2

Recent developments in X-ray laser research at LLE LLE x射线激光研究的最新进展

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166217

T. Boehly, B. Yaakobi, R. Craxton, R. Epstein, M. Richardson, M. Russotto, D. Shvarts, J. Soures, J. Wang

引用次数: 0

Plasma heating by collisional magnetic pumping in a steady-state modified Penning discharge 稳态修正彭宁放电中碰撞磁抽运等离子体加热

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166054

M. Wu, J. R. Roth

引用次数: 0

Characterization of the time-evolution of a microsecond electron beam diode with anode effects 具有阳极效应的微秒电子束二极管的时间演化特性

IEEE 1989 International Conference on Plasma Science Pub Date : 1989-05-22 DOI: 10.1109/PLASMA.1989.166130

M. Cuneo, R. Gilgenbach, M. Brake, C. L. Enloe, J. Miller, T. Repetti

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引用次数: 5