Class information for:
Level 2: NEUTRAL BEAM INJECTION//NEGATIVE ION SOURCE//NEUTRAL BEAM INJECTOR

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
3025 2500 16.7 51%


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
19 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 523489
158 3       NUCLEAR FUSION//PHYSICS, FLUIDS & PLASMAS//PLASMA PHYSICS AND CONTROLLED FUSION 61209
3025 2             NEUTRAL BEAM INJECTION//NEGATIVE ION SOURCE//NEUTRAL BEAM INJECTOR 2500
3957 1                   NEGATIVE ION SOURCE//NEUTRAL BEAM INJECTOR//REVIEW OF SCIENTIFIC INSTRUMENTS 1875
18586 1                   NEUTRAL BEAM INJECTION//NBI//NEUTRAL BEAM 545
36478 1                   AR ION IMPLANTATION//BEAM PLASMA TREATMENT//BIO NANOTECHNOLOGIES 80

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 NEUTRAL BEAM INJECTION authKW 723179 3% 70% 85
2 NEGATIVE ION SOURCE authKW 629206 3% 79% 65
3 NEUTRAL BEAM INJECTOR authKW 570211 3% 74% 63
4 NEUTRAL BEAM authKW 455389 3% 52% 72
5 REVIEW OF SCIENTIFIC INSTRUMENTS journal 300806 34% 3% 859
6 NBI authKW 279353 2% 40% 57
7 ION SOURCE authKW 232905 5% 17% 113
8 CONSORZIO RFX address 197946 5% 14% 114
9 CORE SNUBBER authKW 122123 0% 100% 10
10 NEGATIVE IONS authKW 113039 3% 12% 75

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 Instruments & Instrumentation 39534 39% 0% 985
2 Physics, Applied 13954 48% 0% 1204
3 Nuclear Science & Technology 13934 22% 0% 557
4 Physics, Fluids & Plasmas 10882 16% 0% 412
5 Physics, Nuclear 2341 10% 0% 245
6 Physics, Atomic, Molecular & Chemical 237 5% 0% 129
7 Spectroscopy 144 3% 0% 69
8 Physics, Particles & Fields 137 3% 0% 85
9 Physics, Multidisciplinary 98 5% 0% 117
10 Materials Science, Coatings & Films 33 1% 0% 33

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 CONSORZIO RFX 197946 5% 14% 114
2 ACCIAIERIE VENETE SPA 68372 1% 40% 14
3 NUCL FUS ENGN TECHNOL DEV 62805 0% 86% 6
4 PLASMA HEATING 62805 0% 86% 6
5 CNRENEAINFN 52054 0% 47% 9
6 AG EXPT PLASM HYS 49861 0% 58% 7
7 UMR 7648 44846 1% 18% 21
8 ITER INDIA 42998 0% 39% 9
9 PTP 39078 0% 80% 4
10 UMR CNRS 7648 39078 0% 80% 4

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 REVIEW OF SCIENTIFIC INSTRUMENTS 300806 34% 3% 859
2 FUSION ENGINEERING AND DESIGN 84684 10% 3% 254
3 JOURNAL OF FUSION ENERGY 23881 2% 4% 52
4 PLASMA SOURCES SCIENCE & TECHNOLOGY 22355 3% 3% 71
5 PLASMA SCIENCE & TECHNOLOGY 18114 2% 3% 58
6 NUCLEAR FUSION 8643 3% 1% 68
7 IEEE TRANSACTIONS ON PLASMA SCIENCE 6791 3% 1% 74
8 AIP CONFERENCE PROCEEDINGS 4945 1% 1% 28
9 FUSION SCIENCE AND TECHNOLOGY 4078 1% 1% 36
10 FUSION TECHNOLOGY 3572 1% 1% 32

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 NEUTRAL BEAM INJECTION 723179 3% 70% 85 Search NEUTRAL+BEAM+INJECTION Search NEUTRAL+BEAM+INJECTION
2 NEGATIVE ION SOURCE 629206 3% 79% 65 Search NEGATIVE+ION+SOURCE Search NEGATIVE+ION+SOURCE
3 NEUTRAL BEAM INJECTOR 570211 3% 74% 63 Search NEUTRAL+BEAM+INJECTOR Search NEUTRAL+BEAM+INJECTOR
4 NEUTRAL BEAM 455389 3% 52% 72 Search NEUTRAL+BEAM Search NEUTRAL+BEAM
5 NBI 279353 2% 40% 57 Search NBI Search NBI
6 ION SOURCE 232905 5% 17% 113 Search ION+SOURCE Search ION+SOURCE
7 CORE SNUBBER 122123 0% 100% 10 Search CORE+SNUBBER Search CORE+SNUBBER
8 NEGATIVE IONS 113039 3% 12% 75 Search NEGATIVE+IONS Search NEGATIVE+IONS
9 NEGATIVE HYDROGEN ION SOURCE 109911 0% 100% 9 Search NEGATIVE+HYDROGEN+ION+SOURCE Search NEGATIVE+HYDROGEN+ION+SOURCE
10 NEUTRAL BEAM INJECTOR NBI 105545 0% 79% 11 Search NEUTRAL+BEAM+INJECTOR+NBI Search NEUTRAL+BEAM+INJECTOR+NBI

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 BACAL, M , WADA, M , (2015) NEGATIVE HYDROGEN ION PRODUCTION MECHANISMS.APPLIED PHYSICS REVIEWS. VOL. 2. ISSUE 2. P. - 149 86% 25
2 TOIGO, V , AGOSTINETTI, P , APRILE, D , ANTONI, V , CAVENAGO, M , CHITARIN, G , DE ESCH, HPL , DE LORENZI, A , FONNESU, N , GAMBETTA, G , ET AL (2016) DETAILED DESIGN OPTIMIZATION OF THE MITICA NEGATIVE ION ACCELERATOR IN VIEW OF THE ITER NBI.NUCLEAR FUSION. VOL. 56. ISSUE 1. P. - 44 98% 4
3 BACAL, M , HATAYAMA, A , PETERS, J , (2005) VOLUME PRODUCTION NEGATIVE HYDROGEN ION SOURCES.IEEE TRANSACTIONS ON PLASMA SCIENCE. VOL. 33. ISSUE 6. P. 1845 -1871 65 94% 42
4 TOIGO, V , BOILSON, D , BONICELLI, T , PIOVAN, R , HANADA, M , CHAKRABORTY, A , AGARICI, G , ANTONI, V , BARUAH, U , BIGI, M , ET AL (2015) PROGRESS IN THE REALIZATION OF THE PRIMA NEUTRAL BEAM TEST FACILITY.NUCLEAR FUSION. VOL. 55. ISSUE 8. P. - 38 97% 9
5 MOCHALSKYY, S , WUNDERLICH, D , RUF, B , FANTZ, U , FRANZEN, P , MINEA, T , (2014) ON THE MENISCUS FORMATION AND THE NEGATIVE HYDROGEN ION EXTRACTION FROM ITER NEUTRAL BEAM INJECTION RELEVANT ION SOURCE.PLASMA PHYSICS AND CONTROLLED FUSION. VOL. 56. ISSUE 10. P. - 41 98% 9
6 HEINEMANN, B , FANTZ, U , KRAUS, W , SCHIESKO, L , WIMMER, C , WUNDERLICH, D , BONOMO, F , FROSCHLE, M , NOCENTINI, R , RIEDL, R , (2017) TOWARDS LARGE AND POWERFUL RADIO FREQUENCY DRIVEN NEGATIVE ION SOURCES FOR FUSION.NEW JOURNAL OF PHYSICS. VOL. 19. ISSUE . P. - 40 100% 0
7 FRANZEN, P , FANTZ, U , WUNDERLICH, D , HEINEMANN, B , RIEDL, R , KRAUS, W , FROSCHLE, M , RUF, B , NOCENTINI, R , (2015) PROGRESS OF THE ELISE TEST FACILITY: RESULTS OF CAESIUM OPERATION WITH LOW RF POWER.NUCLEAR FUSION. VOL. 55. ISSUE 5. P. - 36 100% 4
8 FRANZEN, P , FANTZ, U , (2014) ON THE NBI SYSTEM FOR SUBSTANTIAL CURRENT DRIVE IN A FUSION POWER PLANT: STATUS AND R&D NEEDS FOR ION SOURCE AND LASER NEUTRALIZER.FUSION ENGINEERING AND DESIGN. VOL. 89. ISSUE 11. P. 2594 -2605 42 89% 4
9 MOCHALSKYY, S , WUNDERLICH, D , FANTZ, U , FRANZEN, P , MINEA, T , (2015) TOWARDS A REALISTIC 3D SIMULATION OF THE EXTRACTION REGION IN ITER NBI RELEVANT ION SOURCE.NUCLEAR FUSION. VOL. 55. ISSUE 3. P. - 33 100% 7
10 BACAL, M , (2006) PHYSICS ASPECTS OF NEGATIVE ION SOURCES.NUCLEAR FUSION. VOL. 46. ISSUE 6. P. S250-S259 40 93% 101

Classes with closest relation at Level 2


Rank Class id link
1 1313 PLASMA SOURCES SCIENCE & TECHNOLOGY//HALL THRUSTER//PHYSICS OF PLASMAS
2 1060 PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS//STORAGE RING//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
3 3436 C12A7//12CAO CENTER DOT 7AL2O3//NEGATIVE ION IMPLANTATION
4 11 NUCLEAR FUSION//PLASMA PHYSICS AND CONTROLLED FUSION//PHYSICS, FLUIDS & PLASMAS
5 3920 STRESS STRAINED STATE//STRESS STRUCTURAL INHOMOGENEITY//HIGH DENSITY CERAMIC
6 1077 PLASMA ETCHING//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
7 3928 CAB6//HEXABORIDES//CALCIUM HEXABORIDE
8 340 FUSION ENGINEERING AND DESIGN//JOURNAL OF NUCLEAR MATERIALS//NUCLEAR SCIENCE & TECHNOLOGY
9 478 DIELECTRIC BARRIER DISCHARGE//NON THERMAL PLASMA//ATMOSPHERIC PRESSURE PLASMA
10 3221 SCANDATE CATHODE//DISPENSER CATHODE//IMPREGNATED CATHODES

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