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1981 International Conference on Submillimeter Waves and Their Applications最新文献

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FIR Scattering from Electrostatic Modes at the Ion Cyclotron Range of Frequencies in a Tokamak Plasma 托卡马克等离子体中离子回旋加速器频率范围内静电模式的FIR散射
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335094
P. Lee, R. Taylor, H. Park, Y. Xu, C. Yu, N. Luhmann, W. Peebles
{"title":"FIR Scattering from Electrostatic Modes at the Ion Cyclotron Range of Frequencies in a Tokamak Plasma","authors":"P. Lee, R. Taylor, H. Park, Y. Xu, C. Yu, N. Luhmann, W. Peebles","doi":"10.1109/ICSWA.1981.9335094","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335094","url":null,"abstract":"In order to achieve success in magnetic confinement fusion, ion temperatures in excess of 10keV are required. Ohmic heating of tokamak plasmas is insufficient, and so some form of auxilliary heating is essential. In recent years heating at the ion cyclotron range of frequencies (ICRF) has been under active study as a cost effective and efficient alternative to neutral beam heating [1, 2]. At UCLA experiments aimed at understanding the generation mechanisms and propagation properties of the electrostatic waves produced during ICRF heating have been initiated. These experiments have produced the first direct observation in a tokamak of electrostatic modes in the ICRF.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117188819","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
Comparison of Noise Figure of InP and GaAs Self-Oscillating Mixers InP和GaAs自振荡混频器噪声系数的比较
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335112
S. Dixon, H. Jacobs
{"title":"Comparison of Noise Figure of InP and GaAs Self-Oscillating Mixers","authors":"S. Dixon, H. Jacobs","doi":"10.1109/ICSWA.1981.9335112","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335112","url":null,"abstract":"GaAs and InP Gunn-effect Oscillators used as self-excited mixers in the 60 GHz frequency range have been investigated. The double side-band noise figure and conversion characteristics was measured and it was shown that the noise performance obtained in these devices makes them attractive for applications where low cost, simplicity in circuitry, and small physical size are important factors.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128890095","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
Self Calibration of Tokamak Electron Temperature Measurements by ECE 欧洲经委会对托卡马克电子温度测量的自校正
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335131
L. Laurent
{"title":"Self Calibration of Tokamak Electron Temperature Measurements by ECE","authors":"L. Laurent","doi":"10.1109/ICSWA.1981.9335131","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335131","url":null,"abstract":"A new method to perform the absolute calibration of the electron temperature (T<inf>e</inf>) measurement from electron cyclotron emission is presented. Advantage is taken of the difference in the intense plasma emission (T<inf>e</inf> ≈ 10<sup>7</sup> K) at two cyclotron harmonics. The use of a low intensity reference black-body (T<inf>r</inf> < 103 K) is eliminated.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134235427","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
Optoacoustic Spectroscopy and FIR Laser Action on CH3Br using a Waveguide CO2 Laser 光声光谱和FIR激光对CH3Br的作用
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335176
M. Inguscio, S. Marchetti, A. Moretti, F. Strumia
{"title":"Optoacoustic Spectroscopy and FIR Laser Action on CH3Br using a Waveguide CO2 Laser","authors":"M. Inguscio, S. Marchetti, A. Moretti, F. Strumia","doi":"10.1109/ICSWA.1981.9335176","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335176","url":null,"abstract":"The optoacoustic spectrum of CH3Br around 10 μm band lines of a tunable cw waveguide CO2 laser is investigated. Several new infrared absorptions are observed and most of the corresponding molecular transitions are assigned. Far infrared laser action is reported by pumping with the same CO2 laser: pump offsets are given using the Transferred Lamb Dip (TLD) technique. A new FIR laser emission at 265.8±1 μm is obtained by pumping with the 10-R(20) CO2 line and assigned.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130867515","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
A Method to Measure Electron Density in Tokamaks using Electron Cyclotron Emission 利用电子回旋辐射测量托卡马克中电子密度的方法
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335125
L. Laurent, P. Brossier
{"title":"A Method to Measure Electron Density in Tokamaks using Electron Cyclotron Emission","authors":"L. Laurent, P. Brossier","doi":"10.1109/ICSWA.1981.9335125","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335125","url":null,"abstract":"Plasma emission at optically thin harmonics of the electron cyclotron frequency is investigated and a method by which electron density can be determined is discussed. An example from T.F.R. is presented and the potential of this technique for future large tokamaks is explored.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123200311","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
Quasiparticle Harmonic Mixing with SIS Junctions 具有SIS结的准粒子谐波混频
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335102
A. D. Smith, R. Batchelor, W. R. McGrath, P. Richards, H. van Kempen, D. Prober, P. Santhanam
{"title":"Quasiparticle Harmonic Mixing with SIS Junctions","authors":"A. D. Smith, R. Batchelor, W. R. McGrath, P. Richards, H. van Kempen, D. Prober, P. Santhanam","doi":"10.1109/ICSWA.1981.9335102","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335102","url":null,"abstract":"We have demonstrated quasi particle harmonic mixing of a 36 GHz signal with an 18 GHz local oscillator in tin SIS junctions. Harmonic mixers can have important advantages at high microwave frequencies where insufficient LO power is available.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122299440","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
Some Statistical Properties of Tropical Rainfall Intensity for Centimetre and Millimetre Wave Applications 厘米波和毫米波应用下热带降雨强度的一些统计特性
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335137
G. Ajayi
{"title":"Some Statistical Properties of Tropical Rainfall Intensity for Centimetre and Millimetre Wave Applications","authors":"G. Ajayi","doi":"10.1109/ICSWA.1981.9335137","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335137","url":null,"abstract":"The statistical properties of rainfall rate data collected in Ile-Ife are discussed in terms of annual currulative distribution and the frequency of events of peak rainfall rate. Some results of the worst month statistical analysis are reported.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"301 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125759707","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
Design and Evaluation of Antennae for Electron Cyclotron Emission Measurements on Large Toroidal Plasmas 大环形等离子体电子回旋辐射测量天线的设计与评价
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335130
E. A. Baker, A. Budhwar, A. Costley, W. Clark, A. Dellis
{"title":"Design and Evaluation of Antennae for Electron Cyclotron Emission Measurements on Large Toroidal Plasmas","authors":"E. A. Baker, A. Budhwar, A. Costley, W. Clark, A. Dellis","doi":"10.1109/ICSWA.1981.9335130","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335130","url":null,"abstract":"In previous electron cyclotron emission (ece) measurement systems, the antennae used to collect the radiation from the plasma and transmit it to the interferometers has in most cases comprised simply of overmoded light pipe close to the tokamak observation window. This crude arrangement has none the less proved adequate in most systems, primarily because the constraints on the directionality of present receiving systems are not very stringent, and because the length of waveguide runs used is relatively short (and consequently not very lossy).","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125838412","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
Millimeter-Wave Radiometer System for an Atmospheric Research Satellite 大气研究卫星毫米波辐射计系统
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335155
W. Wilson, J. Waters
{"title":"Millimeter-Wave Radiometer System for an Atmospheric Research Satellite","authors":"W. Wilson, J. Waters","doi":"10.1109/ICSWA.1981.9335155","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335155","url":null,"abstract":"Design of the radiometers being developed for the Microwave Limb Sounder instrument tentatively selected for the Upper Atmospheric Research Satellite will be described. Total power radiometers are planned to operate in five spectral bands centered at 63, 119, 183, 205 and 233 GHz to measure several atmospheric parameters.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126919355","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
A 0.4K Bolometer Receiver for Millimeter Astronomy 毫米天文用0.4K辐射热计接收机
1981 International Conference on Submillimeter Waves and Their Applications Pub Date : 1981-12-01 DOI: 10.1109/ICSWA.1981.9335159
P. Ade, J. Davis, R. Howard, I. Nolt, J. Payne, S. Predko, J. Radostitz
{"title":"A 0.4K Bolometer Receiver for Millimeter Astronomy","authors":"P. Ade, J. Davis, R. Howard, I. Nolt, J. Payne, S. Predko, J. Radostitz","doi":"10.1109/ICSWA.1981.9335159","DOIUrl":"https://doi.org/10.1109/ICSWA.1981.9335159","url":null,"abstract":"Engineering tests have been made of a continuum receiver based upon a composite bolometer cooled to 0.4K on the NRAO 36-foot telescope. We will describe some salient features of the receiver design and also discuss the relative sensitivity of this receiver compared to current coherent continuum receivers.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114668935","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
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