Class information for:
Level 2: REVIEW OF SCIENTIFIC INSTRUMENTS//ION SOURCE//NEGATIVE ION SOURCE

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
6832 1                   ECR ION SOURCE//ELECTRON CYCLOTRON RESONANCE ION SOURCE//REVIEW OF SCIENTIFIC INSTRUMENTS 1464
16407 1                   ISOL//RADIOACTIVE ION BEAMS//ISOL TARGET 682
18331 1                   NEUTRAL BEAM INJECTION//NBI//NEUTRAL BEAM 581
19185 1                   RFQ//RFQ ACCELERATOR//SFRFQ 540
21820 1                   HIGH POWER INPUT COUPLER//SUPERCONDUCTING CAVITY CONTROL//VERTICAL TEST 428
22941 1                   SEMICOND EQUIPMENT OPERAT//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS//ADV COMP SYST UNIT 385
28148 1                   ACCELERATOR VOLTAGE STABILISATION//CERAMIC INSULATOR SURFACES//COCKCROFT WALTON CIRCUIT 232
28857 1                   NEGATIVE ION IMPLANTATION//SOL GEL TITANIUM OXIDE FILM//CELL ADHESION PATTERNING 216
34127 1                   PLASMA LENS//INNOVAT PLASMA TECHNOL GRP//ION BEAM PLASMA 129
37942 1                   ISIS PULSED SPALLAT NEUTRON SOURCE//ENGN NEUTRON PLICAT//STFC ISIS PULSED SPALLAT NEUTRON MUON IL 73

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 REVIEW OF SCIENTIFIC INSTRUMENTS journal 613477 30% 7% 1981
2 ION SOURCE authKW 510416 4% 40% 269
3 NEGATIVE ION SOURCE authKW 286088 1% 82% 73
4 ECR ION SOURCE authKW 270623 1% 80% 71
5 NEUTRAL BEAM INJECTION authKW 259143 1% 65% 83
6 NEUTRAL BEAM INJECTOR authKW 233840 1% 74% 66
7 INSTRUMENTS & INSTRUMENTATION WoSSC 185340 52% 1% 3456
8 NEUTRAL BEAM authKW 182912 1% 52% 74
9 ELECTRON CYCLOTRON RESONANCE ION SOURCE authKW 166687 1% 81% 43
10 RFQ authKW 126350 1% 58% 46

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Instruments & Instrumentation 185340 52% 1% 3456
2 Nuclear Science & Technology 82201 33% 1% 2153
3 Physics, Nuclear 54868 27% 1% 1766
4 Physics, Applied 25335 41% 0% 2675
5 Physics, Particles & Fields 12529 15% 0% 986
6 Spectroscopy 7478 10% 0% 640
7 Physics, Fluids & Plasmas 6625 8% 0% 542
8 Physics, Atomic, Molecular & Chemical 6008 13% 0% 850
9 Physics, Multidisciplinary 463 6% 0% 368
10 Engineering, Electrical & Electronic 126 5% 0% 360

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CONSORZIO RFX 78208 2% 14% 115
2 RARE ISOTOPE SCI PROJECT 36773 1% 23% 34
3 NAZL SUD 33124 1% 7% 97
4 NAZL LEGNARO 28608 2% 5% 113
5 AG EXPT PLASM HYS 25796 0% 60% 9
6 ACCIAIERIE VENETE SPA 25579 0% 36% 15
7 UMR 7648 24848 0% 21% 25
8 NUCL FUS ENGN TECHNOL DEV 24573 0% 86% 6
9 PLASMA HEATING 24573 0% 86% 6
10 GRP SOURCE IONS 23892 0% 100% 5

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 REVIEW OF SCIENTIFIC INSTRUMENTS 613477 30% 7% 1981
2 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 79171 11% 2% 730
3 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 40365 9% 1% 599
4 FUSION ENGINEERING AND DESIGN 38088 4% 3% 275
5 HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 18303 1% 4% 95
6 PLASMA SOURCES SCIENCE & TECHNOLOGY 15886 1% 3% 98
7 CHINESE PHYSICS C 15235 1% 4% 90
8 PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY 11034 1% 4% 62
9 JOURNAL OF FUSION ENERGY 9950 1% 4% 54
10 IEEE TRANSACTIONS ON NUCLEAR SCIENCE 9285 3% 1% 184

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 ION SOURCE 510416 4% 40% 269 Search ION+SOURCE Search ION+SOURCE
2 NEGATIVE ION SOURCE 286088 1% 82% 73 Search NEGATIVE+ION+SOURCE Search NEGATIVE+ION+SOURCE
3 ECR ION SOURCE 270623 1% 80% 71 Search ECR+ION+SOURCE Search ECR+ION+SOURCE
4 NEUTRAL BEAM INJECTION 259143 1% 65% 83 Search NEUTRAL+BEAM+INJECTION Search NEUTRAL+BEAM+INJECTION
5 NEUTRAL BEAM INJECTOR 233840 1% 74% 66 Search NEUTRAL+BEAM+INJECTOR Search NEUTRAL+BEAM+INJECTOR
6 NEUTRAL BEAM 182912 1% 52% 74 Search NEUTRAL+BEAM Search NEUTRAL+BEAM
7 ELECTRON CYCLOTRON RESONANCE ION SOURCE 166687 1% 81% 43 Search ELECTRON+CYCLOTRON+RESONANCE+ION+SOURCE Search ELECTRON+CYCLOTRON+RESONANCE+ION+SOURCE
8 RFQ 126350 1% 58% 46 Search RFQ Search RFQ
9 NBI 124038 1% 42% 62 Search NBI Search NBI
10 RADIOACTIVE ION BEAMS 116614 1% 31% 80 Search RADIOACTIVE+ION+BEAMS Search RADIOACTIVE+ION+BEAMS

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 2


rank cluster_id2 link
1 1265 PLASMA SOURCES SCIENCE & TECHNOLOGY//PLASMA SHEATHS//PHYSICS, FLUIDS & PLASMAS
2 1369 PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS//STORAGE RING//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
3 3721 ZONE REFINING//SUPERCONDUCTING RF CAVITIES//PLASMA ARC MELTING
4 2946 ACCELERATOR MASS SPECTROMETRY//RADIOCARBON//AMS
5 2594 SPALLATION REACTIONS//STRIPPER LIFETIME//PHYSICS, NUCLEAR
6 3597 FERROELECTRIC CATHODE//STRESS STRUCTURAL INHOMOGENEITY//PYROELECTRIC CRYSTAL
7 3816 REMOTE PARTICIPATION//MDSPLUS//FUSION ENGINEERING AND DESIGN
8 1299 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS//STOPPING POWER//HIGHLY CHARGED IONS
9 1481 TRANSIENT ENHANCED DIFFUSION//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS//ION IMPLANTATION
10 12 NUCLEAR FUSION//PLASMA PHYSICS AND CONTROLLED FUSION//PHYSICS, FLUIDS & PLASMAS

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