Class information for:
Level 1: SCANDATE CATHODE//DISPENSER CATHODE//IMPREGNATED CATHODES

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
15689 698 16.2 41%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
2 4 MATERIALS SCIENCE, MULTIDISCIPLINARY//PHYSICS, APPLIED//PHYSICS, CONDENSED MATTER 2836879
314 3       ULTRAMICROSCOPY//MICROSCOPY//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 39933
3221 2             SCANDATE CATHODE//DISPENSER CATHODE//IMPREGNATED CATHODES 2032
15689 1                   SCANDATE CATHODE//DISPENSER CATHODE//IMPREGNATED CATHODES 698

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SCANDATE CATHODE authKW 1313733 4% 97% 31
2 DISPENSER CATHODE authKW 771370 3% 77% 23
3 IMPREGNATED CATHODES authKW 745976 3% 95% 18
4 OXIDE CATHODE authKW 646070 3% 62% 24
5 THERMIONIC CATHODE authKW 399946 2% 57% 16
6 LA2O3 MO authKW 262474 1% 100% 6
7 OXIDE COATED CATHODE authKW 262474 1% 100% 6
8 CATHODE LIFE authKW 233305 1% 67% 8
9 THERMIONIC EMISSION authKW 188261 5% 12% 37
10 BA AND SR OXIDES authKW 174982 1% 100% 4

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Materials Science, Coatings & Films 11416 29% 0% 204
2 Physics, Applied 5331 56% 0% 389
3 Physics, Condensed Matter 2452 32% 0% 223
4 Chemistry, Physical 1400 31% 0% 218
5 Engineering, Electrical & Electronic 464 17% 0% 120
6 Metallurgy & Metallurgical Engineering 403 9% 0% 62
7 Materials Science, Multidisciplinary 153 14% 0% 95
8 Physics, Multidisciplinary 128 8% 0% 55
9 Nanoscience & Nanotechnology 56 4% 0% 28
10 Microscopy 47 1% 0% 7

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 RD MICROWAVE DEVICE TECHNOL 116652 1% 67% 4
2 CATHODE ELECT 87491 0% 100% 2
3 CONSUMER IND 87491 0% 100% 2
4 ELECT DEVICES MAT 84120 1% 38% 5
5 ELE ON TUBES DEVICES 69988 1% 40% 4
6 MICROWAVE TUBE RD 58326 0% 67% 2
7 ADV FUNCT MAT 49999 4% 4% 29
8 ALTERNAT ENERGY MAT SECT 43746 0% 100% 1
9 BRANCH 73 11 43746 0% 100% 1
10 CATHODE RAY TUBE DESIGN ENGN 43746 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 APPLICATIONS OF SURFACE SCIENCE 44717 3% 4% 23
2 APPLIED SURFACE SCIENCE 31652 23% 0% 159
3 IEEE TRANSACTIONS ON ELECTRON DEVICES 9309 8% 0% 57
4 REVUE TECHNIQUE THOMSON-CSF 2818 0% 3% 2
5 NEC RESEARCH & DEVELOPMENT 1601 1% 1% 4
6 IZVESTIYA AKADEMII NAUK SSSR SERIYA FIZICHESKAYA 1473 2% 0% 13
7 ONDE ELECTRIQUE 1312 0% 2% 2
8 VACUUM 1305 2% 0% 17
9 RARE METAL MATERIALS AND ENGINEERING 1254 3% 0% 19
10 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 1127 3% 0% 21

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 SCANDATE CATHODE 1313733 4% 97% 31 Search SCANDATE+CATHODE Search SCANDATE+CATHODE
2 DISPENSER CATHODE 771370 3% 77% 23 Search DISPENSER+CATHODE Search DISPENSER+CATHODE
3 IMPREGNATED CATHODES 745976 3% 95% 18 Search IMPREGNATED+CATHODES Search IMPREGNATED+CATHODES
4 OXIDE CATHODE 646070 3% 62% 24 Search OXIDE+CATHODE Search OXIDE+CATHODE
5 THERMIONIC CATHODE 399946 2% 57% 16 Search THERMIONIC+CATHODE Search THERMIONIC+CATHODE
6 LA2O3 MO 262474 1% 100% 6 Search LA2O3+MO Search LA2O3+MO
7 OXIDE COATED CATHODE 262474 1% 100% 6 Search OXIDE+COATED+CATHODE Search OXIDE+COATED+CATHODE
8 CATHODE LIFE 233305 1% 67% 8 Search CATHODE+LIFE Search CATHODE+LIFE
9 THERMIONIC EMISSION 188261 5% 12% 37 Search THERMIONIC+EMISSION Search THERMIONIC+EMISSION
10 BA AND SR OXIDES 174982 1% 100% 4 Search BA+AND+SR+OXIDES Search BA+AND+SR+OXIDES

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 GET'MAN, OI , SKOROKHOD, VV , (2015) STRUCTURAL ENGINEERING OF IMPREGNATED DISPENSER CATHODES.POWDER METALLURGY AND METAL CERAMICS. VOL. 53. ISSUE 11-12. P. 701 -721 29 97% 0
2 WANG, JS , CUI, YT , LIU, W , WANG, YM , YANG, F , ZHOU, F , ZHOU, ML , (2015) A STUDY OF SCANDIA-DOPED-IMPREGNATED CATHODE FABRICATED BY SPRAY DRYING METHOD.IEEE TRANSACTIONS ON ELECTRON DEVICES. VOL. 62. ISSUE 5. P. 1635 -1640 19 95% 1
3 CORTENRAAD, R , VAN DER GON, AWD , BRONGERSMA, HH , GARTNER, G , MANENSCHIJN, A , (2002) SURFACE ANALYSIS OF THERMIONIC DISPENSER CATHODES.APPLIED SURFACE SCIENCE. VOL. 191. ISSUE 1-4. P. 153-165 34 74% 18
4 WANG, YM , WANG, JS , LIU, W , ZHANG, XZ , LI, LL , (2011) EMISSION MECHANISM OF HIGH CURRENT DENSITY SCANDIA-DOPED DISPENSER CATHODES.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B. VOL. 29. ISSUE 4. P. - 21 91% 2
5 ZHAO, JF , LI, N , LI, J , BARNETT, LR , BANDUCCI, M , GAMZINA, D , MUNIR, ZA , LUHMANN, NC , (2011) HIGH CURRENT DENSITY AND LONG-LIFE NANOCOMPOSITE SCANDATE DISPENSER CATHODE FABRICATION.IEEE TRANSACTIONS ON ELECTRON DEVICES. VOL. 58. ISSUE 4. P. 1221 -1228 17 100% 6
6 SHUKLA, SK , SINGH, AK , SINGH, TP , SAINI, SK , POONIA, RK , RAJU, RS , BARIK, RK , (2016) STUDY AND DEVELOPMENT OF YTTRIUM-DOPED NANOSCANDATE CATHODE FOR HIGH-POWER VEDS.IEEE TRANSACTIONS ON ELECTRON DEVICES. VOL. 63. ISSUE 12. P. 4975 -4980 18 86% 0
7 YANG, F , WANG, JS , LIU, W , LIU, X , ZHOU, ML , (2015) STUDIES ON THE PRESSED YTTRIUM OXIDE-TUNGSTEN MATRIX AS A POSSIBLE DISPENSER CATHODE MATERIAL.MATERIALS CHEMISTRY AND PHYSICS. VOL. 149. ISSUE . P. 288 -294 17 85% 0
8 SHIH, A , YATER, JE , HOR, C , (2005) BA AND BAO ON W AND ON SC2O3 COATED W.APPLIED SURFACE SCIENCE. VOL. 242. ISSUE 1-2. P. 35-54 18 100% 18
9 NAGATOMI, T , NAKANISHI, Y , TAKAI, Y , (2010) IN SITU OBSERVATION OF CHANGE IN SURFACE ATOMIC ARRANGEMENT OF SC-O/W(100) SYSTEM DURING PHASE TRANSITION AT HIGH TEMPERATURE.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 28. ISSUE 2. P. 199 -206 17 94% 0
10 SWARTZENTRUBER, PD , BALK, TJ , EFFGEN, MP , (2014) CORRELATION BETWEEN MICROSTRUCTURE AND THERMIONIC ELECTRON EMISSION FROM OS-RU THIN FILMS ON DISPENSER CATHODES.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 32. ISSUE 4. P. - 15 94% 1

Classes with closest relation at Level 1


Rank Class id link
1 16154 PROD DESIGN TECHNOL//CORE LENS//THIN LENS APPROXIMATION
2 9670 TRAVELING WAVE TUBE TWT//TRAVELING WAVE TUBE//SLOW WAVE STRUCTURE SWS
3 33382 COLLOIDAL CHEMICAL METHOD//A SITE SUBSTITATION//ANTI OXIDE
4 24181 PHOTON ENHANCED THERMIONIC EMISSION//THERMIONIC ENERGY CONVERSION//THERMIONIC
5 9185 PHOTOINJECTOR//RF GUN//PHOTOCATHODE
6 28731 B NB TI//ULTRA HIGH PURITY NIOBIUM//0 0 TRANSITION
7 9027 ALKALI METALS//SURFACE SCIENCE//LI SEGREGATION
8 14161 CAB6//HEXABORIDES//CALCIUM HEXABORIDE
9 18999 RELATIVISTIC MAGNETRON//MAGNETRON//PLASMA PULSED POWER MICROWAVE
10 27921 THERMIONIC CONTRAST//THERMAL ELECTRON EMISSION//THERMAL POSITIVE ION EMISSION

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