Class information for:
Level 1: NEGATIVE ION SOURCE//NEUTRAL BEAM INJECTOR//REVIEW OF SCIENTIFIC INSTRUMENTS

Basic class information
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
15 4 METALLURGY & METALLURGICAL ENGINEERING//MATERIALS SCIENCE, MULTIDISCIPLINARY//MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 827627
419 3       PLASMA SOURCES SCIENCE & TECHNOLOGY//REVIEW OF SCIENTIFIC INSTRUMENTS//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A 30297
1804 2             REVIEW OF SCIENTIFIC INSTRUMENTS//ION SOURCE//NEGATIVE ION SOURCE 6593
4197 1                   NEGATIVE ION SOURCE//NEUTRAL BEAM INJECTOR//REVIEW OF SCIENTIFIC INSTRUMENTS 1863

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 NEGATIVE ION SOURCE authKW 904852 4% 78% 69
2 NEUTRAL BEAM INJECTOR authKW 335224 2% 47% 42
3 REVIEW OF SCIENTIFIC INSTRUMENTS journal 286402 39% 2% 719
4 NEUTRAL BEAM INJECTION authKW 281777 2% 36% 46
5 CONSORZIO RFX address 267788 6% 14% 113
6 NEUTRAL BEAM authKW 208604 2% 29% 42
7 ION SOURCE authKW 180375 5% 13% 85
8 NEGATIVE IONS authKW 174754 4% 13% 80
9 CORE SNUBBER authKW 169155 1% 100% 10
10 NEGATIVE HYDROGEN ION SOURCE authKW 152239 0% 100% 9

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Instruments & Instrumentation 34418 43% 0% 795
2 Physics, Applied 12625 53% 0% 982
3 Physics, Fluids & Plasmas 9238 18% 0% 327
4 Nuclear Science & Technology 7713 19% 0% 357
5 Physics, Nuclear 1934 10% 0% 186
6 Physics, Atomic, Molecular & Chemical 126 5% 0% 85
7 Physics, Particles & Fields 72 3% 0% 56
8 Spectroscopy 71 2% 0% 44
9 Physics, Multidisciplinary 33 4% 0% 70
10 Materials Science, Coatings & Films 23 1% 0% 24

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CONSORZIO RFX 267788 6% 14% 113
2 AG EXPT PLASM HYS 91336 0% 60% 9
3 ACCIAIERIE VENETE SPA 90599 1% 36% 15
4 PLASMA HEATING 86992 0% 86% 6
5 CNRENEAINFN 68498 0% 45% 9
6 ITER INDIA 67650 1% 40% 10
7 UMR 7648 62130 1% 18% 21
8 PTP 54128 0% 80% 4
9 UMR CNRS 7648 54128 0% 80% 4
10 PLASMAS DECHARGES 45105 0% 67% 4

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 REVIEW OF SCIENTIFIC INSTRUMENTS 286402 39% 2% 719
2 FUSION ENGINEERING AND DESIGN 65576 10% 2% 191
3 PLASMA SOURCES SCIENCE & TECHNOLOGY 24143 3% 2% 64
4 NUCLEAR FUSION 10848 4% 1% 66
5 AIP CONFERENCE PROCEEDINGS 7891 2% 2% 30
6 IEEE TRANSACTIONS ON PLASMA SCIENCE 6838 3% 1% 64
7 JOURNAL OF FUSION ENERGY 3093 1% 1% 16
8 PLASMA PHYSICS AND CONTROLLED FUSION 2377 2% 0% 31
9 NUCLEAR TECHNOLOGY-FUSION 1817 0% 2% 6
10 PLASMA SCIENCE & TECHNOLOGY 1808 1% 1% 16

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 NEGATIVE ION SOURCE 904852 4% 78% 69 Search NEGATIVE+ION+SOURCE Search NEGATIVE+ION+SOURCE
2 NEUTRAL BEAM INJECTOR 335224 2% 47% 42 Search NEUTRAL+BEAM+INJECTOR Search NEUTRAL+BEAM+INJECTOR
3 NEUTRAL BEAM INJECTION 281777 2% 36% 46 Search NEUTRAL+BEAM+INJECTION Search NEUTRAL+BEAM+INJECTION
4 NEUTRAL BEAM 208604 2% 29% 42 Search NEUTRAL+BEAM Search NEUTRAL+BEAM
5 ION SOURCE 180375 5% 13% 85 Search ION+SOURCE Search ION+SOURCE
6 NEGATIVE IONS 174754 4% 13% 80 Search NEGATIVE+IONS Search NEGATIVE+IONS
7 CORE SNUBBER 169155 1% 100% 10 Search CORE+SNUBBER Search CORE+SNUBBER
8 NEGATIVE HYDROGEN ION SOURCE 152239 0% 100% 9 Search NEGATIVE+HYDROGEN+ION+SOURCE Search NEGATIVE+HYDROGEN+ION+SOURCE
9 NEGATIVE HYDROGEN ION 150691 1% 64% 14 Search NEGATIVE+HYDROGEN+ION Search NEGATIVE+HYDROGEN+ION
10 MULTICUSP ION SOURCE 124556 0% 82% 9 Search MULTICUSP+ION+SOURCE Search MULTICUSP+ION+SOURCE

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.

Classes with closest relation at Level 1


rank cluster_id2 link
1 18331 NEUTRAL BEAM INJECTION//NBI//NEUTRAL BEAM
2 37942 ISIS PULSED SPALLAT NEUTRON SOURCE//ENGN NEUTRON PLICAT//STFC ISIS PULSED SPALLAT NEUTRON MUON IL
3 28966 GRID BIAS METHOD//DOUBLE PLASMA DEVICE//ELECTRON TEMPERATURE CONTROL
4 28857 NEGATIVE ION IMPLANTATION//SOL GEL TITANIUM OXIDE FILM//CELL ADHESION PATTERNING
5 35342 ATOMIC HYDROGEN PRODUCTION//CHARGED TRANSFER//DOUBLE DETACHMENT
6 34127 PLASMA LENS//INNOVAT PLASMA TECHNOL GRP//ION BEAM PLASMA
7 24787 CASCADED ARC//MAGNUM PSI//LINEAR PLASMA GENERATOR
8 19185 RFQ//RFQ ACCELERATOR//SFRFQ
9 5695 BOHM CRITERION//OXFORD UNIT//PLASMA SHEATHS
10 6832 ECR ION SOURCE//ELECTRON CYCLOTRON RESONANCE ION SOURCE//REVIEW OF SCIENTIFIC INSTRUMENTS

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