Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6891955
M. Bisht, R. Barik, A. K. Singh, S. Shukla, R. S. Raju, M. Ravi
Vacuum electron devices (VED's) in THz regime require very high cathode current density. A cathode is made out of nano-powder, containing Yttria-scandia-tungsten and Ba-Ca-aluminates. Emission >70 A/cm2 achieved when tested in analytical chamber containing anode, AES and THEM. These results will be presented.
{"title":"Yttrium-doped nano-scandate cathode for THz VED","authors":"M. Bisht, R. Barik, A. K. Singh, S. Shukla, R. S. Raju, M. Ravi","doi":"10.1109/IVESC.2014.6891955","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6891955","url":null,"abstract":"Vacuum electron devices (VED's) in THz regime require very high cathode current density. A cathode is made out of nano-powder, containing Yttria-scandia-tungsten and Ba-Ca-aluminates. Emission >70 A/cm2 achieved when tested in analytical chamber containing anode, AES and THEM. These results will be presented.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116748780","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6891936
S. R. Antonov, Lybov I. Antonova, V. V. Trofimov
The primary goals are discussed in this work without solution them practical realization of the holographic microscope is impossible. Let's list these problems: 1. Necessity of achievement of the permission of inter nuclear distances at visual supervision; 2. Performance of requirements to a thickness of investigated object; 3. Optimization of conditions of coherent transmission waves in the position sensitive detector (PSD).
{"title":"Research of parameters of a low energy electron diffraction","authors":"S. R. Antonov, Lybov I. Antonova, V. V. Trofimov","doi":"10.1109/IVESC.2014.6891936","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6891936","url":null,"abstract":"The primary goals are discussed in this work without solution them practical realization of the holographic microscope is impossible. Let's list these problems: 1. Necessity of achievement of the permission of inter nuclear distances at visual supervision; 2. Performance of requirements to a thickness of investigated object; 3. Optimization of conditions of coherent transmission waves in the position sensitive detector (PSD).","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126093141","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6891987
Daniil A. Glushkov
While in operation cathode spot of vacuum arc spouts plasma jets, liquid metal drops and splashes [1]. Plasma jets velocity comes up to ~106 m/s, liquid metal drops velocity comes up to ~104 m/s. Meanwhile, for many years researches take continued interest to the problem of pure plasma production [2], it is connected with practical application of vacuum discharge in the process of filming during cathode sputtering under vacuum, in case of determination of vacuum breakers critical operation etc.
{"title":"Calculation of heat exchange between the metal microdroplet and the vacuum discharge plasma with consideration of bulk discharge layer formation","authors":"Daniil A. Glushkov","doi":"10.1109/IVESC.2014.6891987","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6891987","url":null,"abstract":"While in operation cathode spot of vacuum arc spouts plasma jets, liquid metal drops and splashes [1]. Plasma jets velocity comes up to ~106 m/s, liquid metal drops velocity comes up to ~104 m/s. Meanwhile, for many years researches take continued interest to the problem of pure plasma production [2], it is connected with practical application of vacuum discharge in the process of filming during cathode sputtering under vacuum, in case of determination of vacuum breakers critical operation etc.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123399982","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6892099
Chih-Wei Wang, T. Pan, F. Chiu, L. Chi
The effect of titanium content on the impedance characteristics of TbTixOy EIS sensors was investigated by means of C-V method. The bulk resistance increases with increasing pH value of a solution. Finally, the TbTixOy EIS device measured at the inversion regime exhibited higher impedance as compared to the accumulation and depletion regimes.
{"title":"Effect of titanium content on the impedance characteristics of high-Κ TbTxOy electrolyte-insulator-semiconductor pH sensors","authors":"Chih-Wei Wang, T. Pan, F. Chiu, L. Chi","doi":"10.1109/IVESC.2014.6892099","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6892099","url":null,"abstract":"The effect of titanium content on the impedance characteristics of TbTixOy EIS sensors was investigated by means of C-V method. The bulk resistance increases with increasing pH value of a solution. Finally, the TbTixOy EIS device measured at the inversion regime exhibited higher impedance as compared to the accumulation and depletion regimes.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128392612","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6891981
G. Fursey
Review of the most recent data on the critical possibilities and mechanisms of field and explosive emission from carbon nanoclusters was provided. It's given information about the latest achievements in the field of portable X-ray devices operating on the basis of these processes.
{"title":"High intensity emission in a strong electric field from carbon nanomaterials and modern X-ray miniature devises","authors":"G. Fursey","doi":"10.1109/IVESC.2014.6891981","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6891981","url":null,"abstract":"Review of the most recent data on the critical possibilities and mechanisms of field and explosive emission from carbon nanoclusters was provided. It's given information about the latest achievements in the field of portable X-ray devices operating on the basis of these processes.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129225229","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6892015
D. Korolev, S. V. Korolev
It was demonstrated that all thermo-emission materials possess considerable emission heterogeneity; therefore the current take-off shall be described accordingly. An original current take-off equation was suggested with account of emission heterogeneity. The equation structurally represents a linear first kind Fredholm integral equation. It was demonstrated that the inverse problem - emission heterogeneity determination from emission test results - is ill-posed and requires involvement of a priori information for its solution. Good agreement of theoretical and experimental results was demonstrated.
{"title":"Emission distribution of the modern thermo and field emission materials and the correct method of its determination","authors":"D. Korolev, S. V. Korolev","doi":"10.1109/IVESC.2014.6892015","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6892015","url":null,"abstract":"It was demonstrated that all thermo-emission materials possess considerable emission heterogeneity; therefore the current take-off shall be described accordingly. An original current take-off equation was suggested with account of emission heterogeneity. The equation structurally represents a linear first kind Fredholm integral equation. It was demonstrated that the inverse problem - emission heterogeneity determination from emission test results - is ill-posed and requires involvement of a priori information for its solution. Good agreement of theoretical and experimental results was demonstrated.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114079042","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6892087
B. Dyubua, O. V. Polivnikova
The principal problem, which arises at construction of multibeam cathode units, is provision of small spread in emission parameters of separate emitters in the unit preserving the mechanical strength and the shape stability of the cathode unit. The problem is reduced to task of effective attachment of emitters to their seats in the holder of the unit.
{"title":"The investigation of interaction between low-temperature solders and emission body of dispenser cathodes","authors":"B. Dyubua, O. V. Polivnikova","doi":"10.1109/IVESC.2014.6892087","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6892087","url":null,"abstract":"The principal problem, which arises at construction of multibeam cathode units, is provision of small spread in emission parameters of separate emitters in the unit preserving the mechanical strength and the shape stability of the cathode unit. The problem is reduced to task of effective attachment of emitters to their seats in the holder of the unit.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114713973","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6892031
N. Mamedov, V. Kurnaev, D. Sinelnikov, D. Kolodko
In-situ non-destructive method of surface analysis at plasma/ion treatment is presented. A differentially pumped energy analyzer is used for ion scattering and ionized recoil spectroscopy under grazing incidence conditions in automated ion mass monochromator. Build in Penning plasma source is used for plasma/ion treatment of targets.
{"title":"Elemental analysis of the surface during plasma irradiation","authors":"N. Mamedov, V. Kurnaev, D. Sinelnikov, D. Kolodko","doi":"10.1109/IVESC.2014.6892031","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6892031","url":null,"abstract":"In-situ non-destructive method of surface analysis at plasma/ion treatment is presented. A differentially pumped energy analyzer is used for ion scattering and ionized recoil spectroscopy under grazing incidence conditions in automated ion mass monochromator. Build in Penning plasma source is used for plasma/ion treatment of targets.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124523183","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6892021
A. Leyvi, V. Krasnikov, A. Yalovets
The results of theoretical investigations of charged particles and compression plasma flows interaction with mater are presented in this work. These investigations were carried out to reveal the main mechanisms of materials properties modification by intense energy flows treatment.
{"title":"Physical processes leading to changes of the material properties under irradiation","authors":"A. Leyvi, V. Krasnikov, A. Yalovets","doi":"10.1109/IVESC.2014.6892021","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6892021","url":null,"abstract":"The results of theoretical investigations of charged particles and compression plasma flows interaction with mater are presented in this work. These investigations were carried out to reveal the main mechanisms of materials properties modification by intense energy flows treatment.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132416670","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}
Pub Date : 2014-09-08DOI: 10.1109/IVESC.2014.6891996
I. Guzilov
The method BAC that allows increasing the efficiency of klystrons up to 80% on a short length of interaction space is proposed. It includes several series of bunching (B), alignment velocity spread of electrons (A) and collecting particles-outsiders (C). Comparisons of traditional bunching and the BAC bunching are carried out. First comparison is 2 devices in S-band with same length - BAC method leads to 10% increase of efficiency. Second comparison is 2 devices in L-band with same efficiency - BAC method leads to 2 times diminishing of the length of the interaction space.
{"title":"BAC method of increasing the efficiency in klystrons","authors":"I. Guzilov","doi":"10.1109/IVESC.2014.6891996","DOIUrl":"https://doi.org/10.1109/IVESC.2014.6891996","url":null,"abstract":"The method BAC that allows increasing the efficiency of klystrons up to 80% on a short length of interaction space is proposed. It includes several series of bunching (B), alignment velocity spread of electrons (A) and collecting particles-outsiders (C). Comparisons of traditional bunching and the BAC bunching are carried out. First comparison is 2 devices in S-band with same length - BAC method leads to 10% increase of efficiency. Second comparison is 2 devices in L-band with same efficiency - BAC method leads to 2 times diminishing of the length of the interaction space.","PeriodicalId":438314,"journal":{"name":"2014 Tenth International Vacuum Electron Sources Conference (IVESC)","volume":"31 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132485110","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}
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