Class information for:
Level 1: GYROTRON//MICROWAVE TUBE AREA//GYROTRONS

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
1024 2807 17.4 50%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
1218 8674 GYROTRON//IEEE TRANSACTIONS ON PLASMA SCIENCE//TRAVELING WAVE TUBE TWT

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 GYROTRON Author keyword 449 65% 15% 427
2 MICROWAVE TUBE AREA Address 138 100% 1% 38
3 GYROTRONS Author keyword 124 67% 4% 111
4 INTERACTION CAVITY Author keyword 49 94% 1% 17
5 ASSOC EURATOM FZK Address 47 84% 1% 26
6 MAGNETRON INJECTION GUN Author keyword 46 76% 1% 32
7 INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES Journal 45 11% 14% 387
8 DEV FAR INFRARED REG Address 45 37% 3% 97
9 COAXIAL GYROTRON Author keyword 38 93% 0% 14
10 FZK Address 35 56% 2% 43

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 GYROTRON 449 65% 15% 427 Search GYROTRON Search GYROTRON
2 GYROTRONS 124 67% 4% 111 Search GYROTRONS Search GYROTRONS
3 INTERACTION CAVITY 49 94% 1% 17 Search INTERACTION+CAVITY Search INTERACTION+CAVITY
4 MAGNETRON INJECTION GUN 46 76% 1% 32 Search MAGNETRON+INJECTION+GUN Search MAGNETRON+INJECTION+GUN
5 COAXIAL GYROTRON 38 93% 0% 14 Search COAXIAL+GYROTRON Search COAXIAL+GYROTRON
6 VELOCITY SPREAD 33 77% 1% 23 Search VELOCITY+SPREAD Search VELOCITY+SPREAD
7 GYROKLYSTRON 33 66% 1% 31 Search GYROKLYSTRON Search GYROKLYSTRON
8 AXIS ENCIRCLING ELECTRON BEAM 30 100% 0% 12 Search AXIS+ENCIRCLING+ELECTRON+BEAM Search AXIS+ENCIRCLING+ELECTRON+BEAM
9 GYRO TRAVELING WAVE TUBE GYRO TWT 30 100% 0% 12 Search GYRO+TRAVELING+WAVE+TUBE+GYRO+TWT Search GYRO+TRAVELING+WAVE+TUBE+GYRO+TWT
10 GYROTRON TRAVELING WAVE TUBE GYRO TWT 30 100% 0% 12 Search GYROTRON+TRAVELING+WAVE+TUBE+GYRO+TWT Search GYROTRON+TRAVELING+WAVE+TUBE+GYRO+TWT

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 GYROTRON 232 69% 7% 199
2 HARMONIC GYROTRON 103 97% 1% 30
3 TRAVELING WAVE AMPLIFIER 99 68% 3% 86
4 TWT AMPLIFIER 70 87% 1% 34
5 CAVITY GYROTRON 69 91% 1% 29
6 GYROTRONS 59 69% 2% 50
7 SUBMILLIMETER WAVE GYROTRON 58 92% 1% 23
8 GYROKLYSTRON 50 81% 1% 30
9 GHZ GYROTRON 45 90% 1% 19
10 QUASI OPTICAL GYROTRON 45 90% 1% 19

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES 45 11% 14% 387
2 JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES 12 12% 3% 91

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
The Gyrotron at 50: Historical Overview 2014 15 136 97%
The electron cyclotron maser 2004 186 136 91%
Characteristics and applications of fast-wave gyrodevices 1999 134 82 88%
Passive high-power microwave components 2002 123 87 86%
A quarter century of gyrotron research and development 1997 67 59 97%
High power gyro-devices for plasma heating and other applications 2005 57 29 86%
A Review on the Applications of High Power, High Frequency Microwave Source: Gyrotron 2011 18 65 69%
250 GHz CW gyrotron oscillator for dynamic nuclear polarization in biological solid state NMR 2007 52 76 24%
High power operation of 110 GHz gyrotron at 1.2 MW on the JT-60 ECRF system 2003 5 8 100%
Study of Cavity and Output Window for High Power Gyrotron 2011 0 1 100%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 GYROTRON 182 98% 1.7% 47
2 MICROWAVE TUBE AREA 138 100% 1.4% 38
3 ASSOC EURATOM FZK 47 84% 0.9% 26
4 DEV FAR INFRARED REG 45 37% 3.5% 97
5 FZK 35 56% 1.5% 43
6 HOCHLEISTUNGSIMPULS MIKROWELLENTECH 34 52% 1.7% 47
7 PLASMAFOR 22 27% 2.5% 69
8 MWT AREA 18 89% 0.3% 8
9 IHM 16 28% 1.8% 51
10 ASSOC EURATOM KIT 13 67% 0.4% 12

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000124112 BRAGG RESONATOR//COAXIAL BRAGG STRUCTURE//COAXIAL BRAGG REFLECTOR
2 0.0000113903 MAGNICON//COLD QUALITY//ELECTRON BEAM ANALYZER
3 0.0000090698 SCI TECHNOL HIGH POWER MICROWAVE//RELATIVISTIC KLYSTRON AMPLIFIER//HIGH POWER MICROWAVE HPM
4 0.0000079622 TRAVELING WAVE TUBE TWT//SLOW WAVE STRUCTURE SWS//HIGH POWER VACUUM ELECT
5 0.0000074479 RF PULSE COMPRESSOR//MICROWAVE PULSE COMPRESSION//MODE TRANSDUCER
6 0.0000064602 RELATIVISTIC MAGNETRON//MAGNETRONS//PLASMA PULSED POWER MICROWAVE
7 0.0000061527 CHERENKOV LASER//CERENKOV LASER//CHERENKOV FREE ELECTRON LASER
8 0.0000048693 OPTICAL WAVE MICROPHONE//COLLECTIVE THOMSON SCATTERING//ASSOC EURATOM DTU
9 0.0000045405 ELECTRON PLASMA OSCILLATION//RAMAN REGIME//TEMPAKU
10 0.0000041140 BEAM MODE EXPANSION//GRP RADIC//OFF AXIS MIRROR