Class information for:
Level 1: GYROTRON//INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES//DEV FAR INFRARED REG

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
902 2977 17.7 52%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
166 3       PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS//PHYSICS OF PLASMAS//LASER AND PARTICLE BEAMS 60163
615 2             GYROTRON//IEEE TRANSACTIONS ON PLASMA SCIENCE//HIGH POWER MICROWAVE 13950
902 1                   GYROTRON//INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES//DEV FAR INFRARED REG 2977

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 GYROTRON authKW 4989268 20% 83% 584
2 INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES journal 433005 13% 11% 385
3 DEV FAR INFRARED REG address 392450 4% 36% 105
4 MICROWAVE TUBE AREA address 389699 1% 100% 38
5 MAGNETRON INJECTION GUN authKW 348678 1% 100% 34
6 GYRO TWT authKW 320402 1% 92% 34
7 GYROKLYSTRON authKW 317913 1% 100% 31
8 ELECTRON CYCLOTRON HEATING authKW 296301 1% 66% 44
9 VELOCITY SPREAD authKW 268000 1% 93% 28
10 FZK address 257809 1% 57% 44

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 Physics, Fluids & Plasmas 34895 27% 0% 794
2 Engineering, Electrical & Electronic 16912 44% 0% 1323
3 Physics, Applied 8687 36% 0% 1066
4 Optics 6643 21% 0% 612
5 Nuclear Science & Technology 3153 10% 0% 303
6 Instruments & Instrumentation 242 4% 0% 110
7 Physics, Multidisciplinary 240 6% 0% 175
8 Telecommunications 196 3% 0% 83
9 Physics, Nuclear 121 3% 0% 81
10 Physics, Mathematical 25 2% 0% 46

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 GYROTRON 482204 2% 98% 48
2 DEV FAR INFRARED REG 392450 4% 36% 105
3 MICROWAVE TUBE AREA 389699 1% 100% 38
4 FZK 257809 1% 57% 44
5 PLASMAFOR 239276 3% 30% 77
6 HOCHLEISTUNGSIMPULS MIKROWELLENTECH 238417 2% 51% 46
7 ASSOC EURATOM FZK 223622 1% 84% 26
8 IHM 145412 2% 27% 53
9 HIGH ENERGY ELECT 107014 1% 25% 41
10 MICROWAVE TUBES 93415 1% 34% 27

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 INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES 433005 13% 11% 385
2 IEEE TRANSACTIONS ON PLASMA SCIENCE 196794 14% 4% 431
3 INTERNATIONAL JOURNAL OF ELECTRONICS 159551 9% 6% 274
4 JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES 154271 4% 13% 115
5 RADIOPHYSICS AND QUANTUM ELECTRONICS 57194 2% 9% 65
6 FUSION ENGINEERING AND DESIGN 25317 5% 2% 152
7 PHYSICS OF PLASMAS 22949 7% 1% 206
8 IEEE TRANSACTIONS ON ELECTRON DEVICES 13049 5% 1% 140
9 FUSION SCIENCE AND TECHNOLOGY 9883 2% 2% 61
10 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 7952 3% 1% 100

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 GYROTRON 4989268 20% 83% 584 Search GYROTRON Search GYROTRON
2 MAGNETRON INJECTION GUN 348678 1% 100% 34 Search MAGNETRON+INJECTION+GUN Search MAGNETRON+INJECTION+GUN
3 GYRO TWT 320402 1% 92% 34 Search GYRO+TWT Search GYRO+TWT
4 GYROKLYSTRON 317913 1% 100% 31 Search GYROKLYSTRON Search GYROKLYSTRON
5 ELECTRON CYCLOTRON HEATING 296301 1% 66% 44 Search ELECTRON+CYCLOTRON+HEATING Search ELECTRON+CYCLOTRON+HEATING
6 VELOCITY SPREAD 268000 1% 93% 28 Search VELOCITY+SPREAD Search VELOCITY+SPREAD
7 INTERACTION CAVITY 174339 1% 100% 17 Search INTERACTION+CAVITY Search INTERACTION+CAVITY
8 COAXIAL GYROTRON 153829 1% 100% 15 Search COAXIAL+GYROTRON Search COAXIAL+GYROTRON
9 GYRO AMPLIFIER 153829 1% 100% 15 Search GYRO+AMPLIFIER Search GYRO+AMPLIFIER
10 GYROTRON TRAVELING WAVE TUBE GYRO TWT 153829 1% 100% 15 Search GYROTRON+TRAVELING+WAVE+TUBE+GYRO+TWT Search GYROTRON+TRAVELING+WAVE+TUBE+GYRO+TWT

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 NUSINOVICH, GS , THUMM, MKA , PETELIN, MI , (2014) THE GYROTRON AT 50: HISTORICAL OVERVIEW.JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES. VOL. 35. ISSUE 4. P. 325 -381 131 96% 27
2 CHU, KR , (2004) THE ELECTRON CYCLOTRON MASER.REVIEWS OF MODERN PHYSICS. VOL. 76. ISSUE 2. P. 489 -540 124 91% 245
3 THUMM, MK , KASPAREK, W , (2002) PASSIVE HIGH-POWER MICROWAVE COMPONENTS.IEEE TRANSACTIONS ON PLASMA SCIENCE. VOL. 30. ISSUE 3. P. 755-786 73 84% 137
4 FELCH, KL , DANLY, BG , JORY, HR , KREISCHER, KE , LAWSON, W , LEVUSH, B , TEMKIN, RJ , (1999) CHARACTERISTICS AND APPLICATIONS OF FAST-WAVE GYRODEVICES.PROCEEDINGS OF THE IEEE. VOL. 87. ISSUE 5. P. 752 -781 75 89% 138
5 KUMAR, N , SINGH, U , BERA, A , SINHA, AK , (2016) A REVIEW ON THE SUB-THZ/THZ GYROTRONS.INFRARED PHYSICS & TECHNOLOGY. VOL. 76. ISSUE . P. 38 -51 67 66% 1
6 SABCHEVSKI, SP , IDEHARA, T , (2015) A NUMERICAL STUDY ON FINITE-BANDWIDTH RESONANCES OF HIGH-ORDER AXIAL MODES (HOAM) IN A GYROTRON CAVITY.JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES. VOL. 36. ISSUE 7. P. 628 -653 44 90% 1
7 GRANATSTEIN, VL , LEVUSH, B , DANLY, BG , PARKER, RK , (1997) A QUARTER CENTURY OF GYROTRON RESEARCH AND DEVELOPMENT.IEEE TRANSACTIONS ON PLASMA SCIENCE. VOL. 25. ISSUE 6. P. 1322 -1335 58 98% 70
8 QI, XB , DU, CH , LIU, PK , (2015) BROADBAND CONTINUOUS FREQUENCY TUNING IN A TERAHERTZ GYROTRON WITH TAPERED CAVITY.IEEE TRANSACTIONS ON ELECTRON DEVICES. VOL. 62. ISSUE 12. P. 4272 -4278 39 95% 1
9 KAO, SH , CHIU, CC , CHANG, PC , WU, KL , CHU, KR , (2012) HARMONIC MODE COMPETITION IN A TERAHERTZ GYROTRON BACKWARD-WAVE OSCILLATOR.PHYSICS OF PLASMAS. VOL. 19. ISSUE 10. P. - 43 91% 6
10 LI, GD , KAO, SH , CHANG, PC , CHU, KR , (2015) TERAHERTZ ELECTRON CYCLOTRON MASER INTERACTIONS WITH AN AXIS-ENCIRCLING ELECTRON BEAM.PHYSICS OF PLASMAS. VOL. 22. ISSUE 4. P. - 41 87% 1

Classes with closest relation at Level 1


Rank Class id link
1 21464 BRAGG RESONATOR//COAXIAL BRAGG STRUCTURE//COAXIAL BRAGG REFLECTOR
2 33754 MAGNICON//COLD QUALITY//HYBRID MAGNICON
3 9540 SCI TECHNOL HIGH POWER MICROWAVE//HIGH POWER MICROWAVE//HIGH POWER MICROWAVE HPM
4 20497 ELECTRON BERNSTEIN WAVE//COLLECTIVE THOMSON SCATTERING//ELECTRON CYCLOTRON LAUNCHER
5 30630 RADIOTEKHNIKA I ELEKTRONIKA//PRIMARY ELECTRON BEAMS//ELECTRON PLASMA OSCILLATION
6 9670 TRAVELING WAVE TUBE TWT//TRAVELING WAVE TUBE//SLOW WAVE STRUCTURE SWS
7 26878 CHERENKOV LASER//CERENKOV LASER//CHERENKOV FREE ELECTRON LASER
8 27612 SEMICONDUCTOR OBSTACLE//MICROWAVE PULSE COMPRESSION//DOUBLE RIDGED H TYPE WAVEGUIDE
9 18999 RELATIVISTIC MAGNETRON//MAGNETRON//PLASMA PULSED POWER MICROWAVE
10 13781 HORN ANTENNAS//GAP WAVEGUIDE//ORTHOMODE TRANSDUCER OMT

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