Class information for:
Level 1: FREE ELECTRON LASER//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT//SASE

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
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
228 3       PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT//FREE ELECTRON LASER 48839
1890 2             FREE ELECTRON LASER//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT//UNDULATOR 6328
351 1                   FREE ELECTRON LASER//NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT//SASE 3624

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 FREE ELECTRON LASER authKW 1192578 11% 33% 411
2 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIAT journal 510298 43% 4% 1561
3 SASE authKW 443178 2% 84% 61
4 PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS journal 384749 8% 14% 307
5 FEL authKW 303693 3% 38% 91
6 SELF AMPLIFIED SPONTANEOUS EMISSION authKW 195916 1% 87% 26
7 HGHG authKW 139117 0% 100% 16
8 PHYSICS, NUCLEAR WoSSC 136769 56% 1% 2034
9 SASE FEL authKW 114211 0% 77% 17
10 BUNCH COMPRESSOR authKW 111287 0% 80% 16

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Physics, Nuclear 136769 56% 1% 2034
2 Physics, Particles & Fields 106634 56% 1% 2024
3 Spectroscopy 96610 44% 1% 1606
4 Nuclear Science & Technology 90651 46% 1% 1664
5 Instruments & Instrumentation 77953 46% 1% 1666
6 Optics 4065 15% 0% 546
7 Physics, Multidisciplinary 2054 12% 0% 447
8 Physics, Fluids & Plasmas 1976 6% 0% 225
9 Physics, Applied 772 12% 0% 445
10 Physics, Mathematical 223 3% 0% 105

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PARTICLE BEAM PHYS 75231 0% 58% 15
2 PARTICLE ACCELERATOR PHYS 47335 0% 78% 7
3 PARTICLE PHYS LSVE 43474 0% 100% 5
4 RIC FRASCATI 32411 1% 11% 35
5 ATF 28450 0% 55% 6
6 FREE ELE ON LASER 27750 1% 15% 21
7 BEAM PHYS FEL 27168 0% 63% 5
8 FIS TEOR MATEMAT PLICATA 26084 0% 100% 3
9 YUE HONG ADV STUDY 26084 0% 100% 3
10 RIC BOLOGNA 25053 0% 41% 7

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 510298 43% 4% 1561
2 PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 384749 8% 14% 307
3 PHYSICAL REVIEW ACCELERATORS AND BEAMS 99450 2% 19% 61
4 IEEE JOURNAL OF QUANTUM ELECTRONICS 16426 4% 1% 128
5 CHINESE PHYSICS C 6023 1% 2% 42
6 OPTICS COMMUNICATIONS 4026 3% 0% 113
7 PHYSICAL REVIEW LETTERS 3445 6% 0% 203
8 HIGH POWER LASER SCIENCE AND ENGINEERING 2075 0% 4% 6
9 PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS 2028 1% 1% 36
10 PARTICLE ACCELERATORS 1708 0% 3% 6

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 FREE ELECTRON LASER 1192578 11% 33% 411 Search FREE+ELECTRON+LASER Search FREE+ELECTRON+LASER
2 SASE 443178 2% 84% 61 Search SASE Search SASE
3 FEL 303693 3% 38% 91 Search FEL Search FEL
4 SELF AMPLIFIED SPONTANEOUS EMISSION 195916 1% 87% 26 Search SELF+AMPLIFIED+SPONTANEOUS+EMISSION Search SELF+AMPLIFIED+SPONTANEOUS+EMISSION
5 HGHG 139117 0% 100% 16 Search HGHG Search HGHG
6 SASE FEL 114211 0% 77% 17 Search SASE+FEL Search SASE+FEL
7 BUNCH COMPRESSOR 111287 0% 80% 16 Search BUNCH+COMPRESSOR Search BUNCH+COMPRESSOR
8 COHERENT SYNCHROTRON RADIATION 99593 1% 44% 26 Search COHERENT+SYNCHROTRON+RADIATION Search COHERENT+SYNCHROTRON+RADIATION
9 EMITTANCE COMPENSATION 97958 0% 87% 13 Search EMITTANCE+COMPENSATION Search EMITTANCE+COMPENSATION
10 MICROBUNCHING 87671 0% 92% 11 Search MICROBUNCHING Search MICROBUNCHING

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 28385 MICROUNDULATOR//ELECTROSTATIC UNDULATOR//WIGGLER
2 8416 TWO STREAM FREE ELECTRON LASER//GUIDE MAGNETIC FIELD//ELECTROMAGNETIC WIGGLER
3 14570 OPTICAL KLYSTRON//STORAGE RING//FREE ELECTRON LASER
4 32923 CANDOLUMINESCENCE//A FEW VIEWS TOMOGRAPHY//ACCELERATOR RECUPERATOR
5 13148 PHOTOCATHODE//METALLIC PHOTOCATHODES//PHOTOINJECTOR
6 14386 LINAC COHERENT LIGHT SOURCE//MAX PLANCK ADV STUDY GRP//FREE ELECTRON LASER
7 10337 DIFFRACTION RADIATION//SMITH PURCELL RADIATION//TRANSITION RADIATION
8 15857 UNDULATOR//INSERTION DEVICES//SUPERCONDUCTING UNDULATOR
9 38679 FELWI//PLANE WIGGLER//CHANNELED POSITRONS
10 21789 DIELECTRIC WAKEFIELD ACCELERATOR//INVERSE SMITH PURCELL EFFECT//DIELECTRIC GRATING ACCELERATOR

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