Class information for:
Level 1: POSITRON ANNIHILATION//POSITRON BEAM//SLOW POSITRON BEAM

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1609 2570 21.5 54%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
251 3       JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS//PHYSICAL REVIEW A//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 46185
2170 2             POSITRON ANNIHILATION//POSITRONIUM//FREE VOLUME 4966
1609 1                   POSITRON ANNIHILATION//POSITRON BEAM//SLOW POSITRON BEAM 2570

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 POSITRON ANNIHILATION authKW 678580 10% 22% 262
2 POSITRON BEAM authKW 558943 3% 61% 77
3 SLOW POSITRON BEAM authKW 380101 2% 57% 56
4 POSITRON LIFETIME authKW 227289 2% 30% 64
5 SUBSURFACE ZONES authKW 180692 1% 89% 17
6 PULSED POSITRON BEAM authKW 180641 1% 72% 21
7 POSITRON authKW 179128 4% 16% 95
8 SLOW POSITRONS authKW 171048 1% 60% 24
9 COINCIDENCE DOPPLER BROADENING authKW 136878 1% 52% 22
10 NEPOMUC authKW 130676 0% 100% 11

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, Condensed Matter 18536 45% 0% 1149
2 Physics, Applied 5794 32% 0% 820
3 Materials Science, Coatings & Films 4940 10% 0% 266
4 Instruments & Instrumentation 3425 12% 0% 311
5 Nuclear Science & Technology 3229 11% 0% 283
6 Materials Science, Multidisciplinary 2271 23% 0% 596
7 Microscopy 2249 3% 0% 85
8 Physics, Multidisciplinary 2014 14% 0% 366
9 Physics, Nuclear 2008 9% 0% 232
10 Physics, Atomic, Molecular & Chemical 772 8% 0% 207

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 NUKL FESTKORPERPHYS 102344 2% 21% 41
2 PHYS E 21 76027 0% 80% 8
3 ANGEW PHYS MESSTECH 34208 0% 26% 11
4 PHYS E21 28468 1% 10% 24
5 OARAI BRANCH 24849 1% 12% 17
6 PROJEKTGRP FRM 2 23759 0% 100% 2
7 IDAHO ACCELERATOR 23743 0% 20% 10
8 OINARRIZKO ZIENTZIAK SAILA 21381 0% 60% 3
9 INTER REACTOR 17183 2% 4% 39
10 LOW TEMP PHYS 17139 1% 4% 37

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 MATERIALS SCIENCE FORUM 37704 9% 1% 236
2 APPLIED SURFACE SCIENCE 19306 9% 1% 240
3 JOURNAL OF PHYSICS F-METAL PHYSICS 9378 2% 2% 40
4 PHYSICAL REVIEW B 6852 12% 0% 317
5 ACTA PHYSICA POLONICA A 6124 3% 1% 78
6 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 5062 5% 0% 118
7 JOURNAL OF PHYSICS-CONDENSED MATTER 4514 4% 0% 110
8 APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 4116 3% 1% 70
9 RADIATION PHYSICS AND CHEMISTRY 2653 2% 0% 47
10 NUKLEONIKA 2288 1% 1% 17

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 POSITRON ANNIHILATION 678580 10% 22% 262 Search POSITRON+ANNIHILATION Search POSITRON+ANNIHILATION
2 POSITRON BEAM 558943 3% 61% 77 Search POSITRON+BEAM Search POSITRON+BEAM
3 SLOW POSITRON BEAM 380101 2% 57% 56 Search SLOW+POSITRON+BEAM Search SLOW+POSITRON+BEAM
4 POSITRON LIFETIME 227289 2% 30% 64 Search POSITRON+LIFETIME Search POSITRON+LIFETIME
5 SUBSURFACE ZONES 180692 1% 89% 17 Search SUBSURFACE+ZONES Search SUBSURFACE+ZONES
6 PULSED POSITRON BEAM 180641 1% 72% 21 Search PULSED+POSITRON+BEAM Search PULSED+POSITRON+BEAM
7 POSITRON 179128 4% 16% 95 Search POSITRON Search POSITRON
8 SLOW POSITRONS 171048 1% 60% 24 Search SLOW+POSITRONS Search SLOW+POSITRONS
9 COINCIDENCE DOPPLER BROADENING 136878 1% 52% 22 Search COINCIDENCE+DOPPLER+BROADENING Search COINCIDENCE+DOPPLER+BROADENING
10 NEPOMUC 130676 0% 100% 11 Search NEPOMUC Search NEPOMUC

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 SCHULTZ, PJ , LYNN, KG , (1988) INTERACTION OF POSITRON BEAMS WITH SURFACES, THIN-FILMS, AND INTERFACES.REVIEWS OF MODERN PHYSICS. VOL. 60. ISSUE 3. P. 701 -779 162 84% 1154
2 HUGENSCHMIDT, C , (2016) POSITRONS INSURFACE PHYSICS.SURFACE SCIENCE REPORTS. VOL. 71. ISSUE 4. P. 547 -594 117 62% 0
3 TUOMISTO, F , MAKKONEN, I , (2013) DEFECT IDENTIFICATION IN SEMICONDUCTORS WITH POSITRON ANNIHILATION: EXPERIMENT AND THEORY.REVIEWS OF MODERN PHYSICS. VOL. 85. ISSUE 4. P. 1583 -1631 117 31% 117
4 PUSKA, MJ , NIEMINEN, RM , (1994) THEORY OF POSITRONS IN SOLIDS AND ON SOLID-SURFACES.REVIEWS OF MODERN PHYSICS. VOL. 66. ISSUE 3. P. 841 -897 95 52% 646
5 HAGIWARA, S , HU, CP , WATANABE, K , (2015) POSITRON STATES AT A LITHIUM-ADSORBED AL(100) SURFACE: TWO-COMPONENT DENSITY FUNCTIONAL THEORY SIMULATION.PHYSICAL REVIEW B. VOL. 91. ISSUE 11. P. - 50 76% 5
6 ASOKAKUMAR, P , LYNN, KG , WELCH, DO , (1994) CHARACTERIZATION OF DEFECTS IN SI AND SIO2-SI USING POSITRONS.JOURNAL OF APPLIED PHYSICS. VOL. 76. ISSUE 9. P. 4935 -4982 85 59% 245
7 KURIPLACH, J , BARBIELLINI, B , (2014) IMPROVED GENERALIZED GRADIENT APPROXIMATION FOR POSITRON STATES IN SOLIDS.PHYSICAL REVIEW B. VOL. 89. ISSUE 15. P. - 48 60% 10
8 DUPASQUIER, A , KOGEL, G , SOMOZA, A , (2004) STUDIES OF LIGHT ALLOYS BY POSITRON ANNIHILATION TECHNIQUES.ACTA MATERIALIA. VOL. 52. ISSUE 16. P. 4707 -4726 39 72% 91
9 ROBLES, JMC , OGANDO, E , PLAZAOLA, F , (2007) POSITRON LIFETIME CALCULATION FOR THE ELEMENTS OF THE PERIODIC TABLE.JOURNAL OF PHYSICS-CONDENSED MATTER. VOL. 19. ISSUE 17. P. - 29 85% 73
10 RUBASZEK, A , SZOTEK, Z , TEMMERMAN, WM , (1998) NONLOCAL ELECTRON-POSITRON CORRELATIONS IN SOLIDS WITHIN THE WEIGHTED DENSITY APPROXIMATION.PHYSICAL REVIEW B. VOL. 58. ISSUE 17. P. 11285 -11302 34 97% 44

Classes with closest relation at Level 1


Rank Class id link
1 30875 POSITRON LIFETIME SPECTROMETER//LIFETIME SPECTROMETER//FAST COINCIDENCE APPARATUS
2 20155 SIMULATED CALCULATIONS//BI BASED CUPRATE SUPERCONDUCTORS//LOCAL ELECTRON DENSITY
3 27689 NICKEL PHOSPHORUS PLATING//AL SI GE//RADIAT PHYS ELECT TECH
4 32957 ALLOY SINGLE CRYSTALS//MED MAT IMPLANTS SH E MEMORY EFFECT//SEDIMENTATION OF COMPONENTS
5 2959 POSITRON ANNIHILATION//POSITRONIUM//FREE VOLUME
6 32649 DECLINE OF NUCLEATION//EFFECT OF PLATING PARAMETERS//ELECTROCHEMICALLY POLYMERIZATION
7 12055 COMPTON PROFILE//ELECTRON MOMENTUM DENSITY//COMPTON SCATTERING
8 5280 ANTIHYDROGEN//ANTIPROTONIC HELIUM//NONNEUTRAL PLASMA
9 9811 FE CU ALLOY//REACTOR PRESSURE VESSEL STEEL//COPPER PRECIPITATION
10 8394 POSITRON//POSITRONIUM FORMATION//POSITRONIUM

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