Class information for:
Level 1: ELECT ENGN OPTOELECT TECHNOL//GAAS PHOTOCATHODE//GAN PHOTOCATHODE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
14500 766 18.4 53%


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
117 3       MATERIALS SCIENCE, CERAMICS//ELECT ENGN OPTOELECT TECHNOL//JOURNAL OF THE AMERICAN CERAMIC SOCIETY 69464
3285 2             ELECT ENGN OPTOELECT TECHNOL//GAAS PHOTOCATHODE//EUTECTIC CERAMICS 1882
14500 1                   ELECT ENGN OPTOELECT TECHNOL//GAAS PHOTOCATHODE//GAN PHOTOCATHODE 766

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 ELECT ENGN OPTOELECT TECHNOL address 2691947 17% 51% 132
2 GAAS PHOTOCATHODE authKW 1240274 4% 94% 33
3 GAN PHOTOCATHODE authKW 677654 2% 100% 17
4 EXPONENTIAL DOPING authKW 398620 1% 100% 10
5 POLARIZED ELECTRON SOURCE authKW 293526 1% 82% 9
6 PHOTOCATHODE authKW 280351 6% 15% 47
7 NEGATIVE ELECTRON AFFINITY authKW 252434 2% 33% 19
8 CS O ACTIVATION authKW 239172 1% 100% 6
9 LOW LIGHT LEVEL TECHNOL address 217023 1% 78% 7
10 ENGN NEW ENERGY TECHNOL JIANGXI PROV address 199310 1% 100% 5

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, Applied 2529 38% 0% 290
2 Physics, Condensed Matter 1220 22% 0% 171
3 Physics, Multidisciplinary 992 18% 0% 136
4 Optics 790 14% 0% 111
5 Instruments & Instrumentation 483 9% 0% 66
6 Materials Science, Coatings & Films 357 5% 0% 41
7 Spectroscopy 296 6% 0% 46
8 Physics, Nuclear 288 7% 0% 50
9 Physics, Particles & Fields 247 7% 0% 52
10 Nuclear Science & Technology 169 5% 0% 39

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 ELECT ENGN OPTOELECT TECHNOL 2691947 17% 51% 132
2 LOW LIGHT LEVEL TECHNOL 217023 1% 78% 7
3 ENGN NEW ENERGY TECHNOL JIANGXI PROV 199310 1% 100% 5
4 ELECT ENGN OPTO ELECT TECHNOL 159448 1% 100% 4
5 ENGN NUCL TECHNOL PLICAT 141847 1% 32% 11
6 ENGN NEW ENERGY TECHNOL EQUIPMENT JIANG 127557 1% 80% 4
7 ELE ON ELECT 119586 0% 100% 3
8 ELECT OPT ENGN 117037 5% 8% 37
9 AICHI SYNCHROTRON RADIAT 71749 0% 60% 3
10 442 39862 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 SOVIET PHYSICS SEMICONDUCTORS-USSR 4431 3% 0% 25
2 ACTA PHYSICA SINICA 3502 5% 0% 42
3 OPTIK 3350 4% 0% 30
4 FIZIKA TVERDOGO TELA 1892 3% 0% 23
5 ZHURNAL TEKHNICHESKOI FIZIKI 1654 2% 0% 16
6 PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 1190 1% 0% 8
7 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1127 5% 0% 35
8 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 1023 3% 0% 21
9 OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS 981 1% 0% 8
10 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS 940 0% 1% 2

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 GAAS PHOTOCATHODE 1240274 4% 94% 33 Search GAAS+PHOTOCATHODE Search GAAS+PHOTOCATHODE
2 GAN PHOTOCATHODE 677654 2% 100% 17 Search GAN+PHOTOCATHODE Search GAN+PHOTOCATHODE
3 EXPONENTIAL DOPING 398620 1% 100% 10 Search EXPONENTIAL+DOPING Search EXPONENTIAL+DOPING
4 POLARIZED ELECTRON SOURCE 293526 1% 82% 9 Search POLARIZED+ELECTRON+SOURCE Search POLARIZED+ELECTRON+SOURCE
5 PHOTOCATHODE 280351 6% 15% 47 Search PHOTOCATHODE Search PHOTOCATHODE
6 NEGATIVE ELECTRON AFFINITY 252434 2% 33% 19 Search NEGATIVE+ELECTRON+AFFINITY Search NEGATIVE+ELECTRON+AFFINITY
7 CS O ACTIVATION 239172 1% 100% 6 Search CS+O+ACTIVATION Search CS+O+ACTIVATION
8 GAALAS PHOTOCATHODE 199310 1% 100% 5 Search GAALAS+PHOTOCATHODE Search GAALAS+PHOTOCATHODE
9 INTEGRAL SENSITIVITY 199310 1% 100% 5 Search INTEGRAL+SENSITIVITY Search INTEGRAL+SENSITIVITY
10 SURFACE ESCAPE PROBABILITY 199310 1% 100% 5 Search SURFACE+ESCAPE+PROBABILITY Search SURFACE+ESCAPE+PROBABILITY

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 CHANLEK, N , HERBERT, JD , JONES, RM , JONES, LB , MIDDLEMAN, KJ , MILITSYN, BL , (2015) HIGH STABILITY OF NEGATIVE ELECTRON AFFINITY GALLIUM ARSENIDE PHOTOCATHODES ACTIVATED WITH CS AND NF3.JOURNAL OF PHYSICS D-APPLIED PHYSICS. VOL. 48. ISSUE 37. P. - 28 88% 1
2 CHANLEK, N , HERBERT, JD , JONES, RM , JONES, LB , MIDDLEMAN, KJ , MILITSYN, BL , (2014) THE DEGRADATION OF QUANTUM EFFICIENCY IN NEGATIVE ELECTRON AFFINITY GAAS PHOTOCATHODES UNDER GAS EXPOSURE.JOURNAL OF PHYSICS D-APPLIED PHYSICS. VOL. 47. ISSUE 5. P. - 27 79% 6
3 ZHANG, JJ , CHANG, BK , FU, XQ , DU, YJ , LI, B , ZOU, JJ , (2011) INFLUENCE OF CESIUM ON THE STABILITY OF A GAAS PHOTOCATHODE.CHINESE PHYSICS B. VOL. 20. ISSUE 8. P. - 20 100% 0
4 ZHANG, YJ , GAN, ZX , ZHANG, H , HUANG, F , XU, Y , FENG, C , (2014) RECESIATION OF GAALAS PHOTOCATHODES IN AN ULTRAHIGH VACUUM SYSTEM.ACTA PHYSICA SINICA. VOL. 63. ISSUE 17. P. - 19 95% 1
5 CHEN, XL , ZHAO, J , CHANG, BK , HAO, GH , XU, Y , ZHANG, YJ , JIN, MC , (2014) ROLES OF CESIUM AND OXIDES IN THE PROCESSING OF GALLIUM ALUMINUM ARSENIDE PHOTOCATHODES.MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING. VOL. 18. ISSUE . P. 122 -127 18 100% 0
6 CHEN, XL , HAO, GH , CHANG, BK , ZHANG, YJ , ZHAO, J , XU, Y , JIN, MC , (2013) STABILITY OF NEGATIVE ELECTRON AFFINITY GA0.37AL0.63AS PHOTOCATHODES IN AN ULTRAHIGH VACUUM SYSTEM.APPLIED OPTICS. VOL. 52. ISSUE 25. P. 6272 -6277 17 100% 0
7 DENG, WJ , ZOU, JJ , PENG, XC , FENG, L , ZHU, ZF , WANG, WL , ZHANG, YJ , CHANG, BK , (2015) RESOLUTION CHARACTERISTICS OF GRADED DOPING AND GRADED COMPOSITION TRANSMISSION-MODE ALGAAS/GAAS PHOTOCATHODES.APPLIED OPTICS. VOL. 54. ISSUE 6. P. 1414 -1419 17 94% 0
8 WANG, HG , FU, XQ , JI, XH , DU, YJ , LIU, J , QIAN, YS , CHANG, BK , (2014) RESOLUTION PROPERTIES OF TRANSMISSION-MODE EXPONENTIAL-DOPING GA0.37AL0.63AS PHOTOCATHODES.APPLIED OPTICS. VOL. 53. ISSUE 27. P. 6230 -6236 19 86% 0
9 ZHANG, YJ , NIU, J , ZOU, JJ , CHEN, XL , XU, Y , CHANG, BK , SHI, F , (2014) SURFACE ACTIVATION BEHAVIOR OF NEGATIVE-ELECTRON-AFFINITY EXPONENTIAL-DOPING GAAS PHOTOCATHODES.OPTICS COMMUNICATIONS. VOL. 321. ISSUE . P. 32 -37 19 83% 0
10 XU, Y , ZHANG, YJ , FENG, C , SHI, F , ZOU, JJ , CHEN, XL , CHANG, BK , (2016) DIFFERENCES IN STABILITY AND REPEATABILITY BETWEEN GAAS AND GAALAS PHOTOCATHODES.OPTICS COMMUNICATIONS. VOL. 380. ISSUE . P. 320 -325 16 89% 0

Classes with closest relation at Level 1


Rank Class id link
1 29224 NANOMAT CHARACTERIZAT SCI PROC TECHNOL//AG CUINSE2//A SI MEMRISTOR
2 9185 PHOTOINJECTOR//RF GUN//PHOTOCATHODE
3 17559 ALKALI METALS//CEA SERV RECH SUR ES IRRADIAT MAT//SURFACE SCIENCE
4 32280 AUGER TRANSISTOR//SELF CONSISTENT QUANTUM WELLS//44 THIO BIS BENZENETHIOLATE
5 6270 SPIN SEM//SPIN POLARIZED PHOTOEMISSION//SPIN RESOLVED PHOTOEMISSION
6 24181 PHOTON ENHANCED THERMIONIC EMISSION//THERMIONIC ENERGY CONVERSION//THERMIONIC
7 36549 ULTRAFAST LASER DIAGNOSTICS//DIAGNOSTICS OF REPEATED SIGNALS INCLUDING THOSE OF SYNCHROTRON RADIATION IN THE ACCUMULATION MODE//EXCIMER ARF AMPLIFIER
8 10237 ETUD RECH MAT//GALLIUM NITRIDE//RECH PROPRIETES MAT NOUVEAUX
9 13299 ECR HYDROGEN PLASMA//ELECTROMAGNETIC GREENS FUNCTION//IN SITU VACUUM PROCESS
10 20560 MOL MOVIES//SPECT ULTRAR IDE//TIME OLVED DIFFRACT

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