Class information for:
Level 1: VACUUM//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A//GETTER

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
4923 1703 14.5 40%


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
472 3       FUSION ENGINEERING AND DESIGN//JOURNAL OF NUCLEAR MATERIALS//NUCLEAR SCIENCE & TECHNOLOGY 23979
3079 2             VACUUM//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A//GETTER 2385
4923 1                   VACUUM//JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A//GETTER 1703

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 VACUUM journal 573174 32% 6% 550
2 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A journal 403218 33% 4% 563
3 GETTER authKW 341455 2% 48% 40
4 NON EVAPORABLE GETTER authKW 234265 1% 93% 14
5 NEG authKW 199543 1% 70% 16
6 SPINNING ROTOR GAUGE authKW 198592 1% 92% 12
7 ASTEC VACUUM SCI GRP address 162986 1% 91% 10
8 VACUUM METROLOGY authKW 149402 1% 83% 10
9 OUTGASSING RATE authKW 135578 1% 69% 11
10 VACUUM STANDARD authKW 125500 0% 100% 7

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 Materials Science, Coatings & Films 45975 37% 0% 637
2 Physics, Applied 29870 83% 0% 1407
3 Materials Science, Multidisciplinary 4265 36% 0% 617
4 Instruments & Instrumentation 1490 10% 0% 170
5 Nuclear Science & Technology 338 5% 0% 83
6 Engineering, General 139 3% 0% 46
7 Physics, Nuclear 77 3% 0% 48
8 Engineering, Mechanical 38 2% 0% 42
9 Spectroscopy 32 2% 0% 32
10 Physics, Particles & Fields 19 2% 0% 36

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 ASTEC VACUUM SCI GRP 162986 1% 91% 10
2 SM GRP 71714 0% 100% 4
3 ASTEC ACCELERATOR SCI TECHNOL 53786 0% 100% 3
4 ASTEC 46594 1% 20% 13
5 ABT VAKUUMPHYS 35857 0% 100% 2
6 LHC VACUUM GRP 35857 0% 100% 2
7 RHIC PROJECT 35857 0% 100% 2
8 TELEVAC 35857 0% 100% 2
9 UHV GRP 35857 0% 100% 2
10 VACUUM SCI TECHNOL NINVAST 35857 0% 100% 2

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 VACUUM 573174 32% 6% 550
2 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A 403218 33% 4% 563
3 VAKUUM-TECHNIK 98972 2% 20% 27
4 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY 42542 3% 4% 53
5 JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS 20767 1% 8% 14
6 METROLOGIA 10307 2% 1% 40
7 MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA 4973 1% 3% 9
8 MICRO 2537 0% 3% 5
9 MEASUREMENT 2099 1% 1% 22
10 VIDE-SCIENCE TECHNIQUE ET APPLICATIONS 1813 0% 1% 7

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 GETTER 341455 2% 48% 40 Search GETTER Search GETTER
2 NON EVAPORABLE GETTER 234265 1% 93% 14 Search NON+EVAPORABLE+GETTER Search NON+EVAPORABLE+GETTER
3 NEG 199543 1% 70% 16 Search NEG Search NEG
4 SPINNING ROTOR GAUGE 198592 1% 92% 12 Search SPINNING+ROTOR+GAUGE Search SPINNING+ROTOR+GAUGE
5 VACUUM METROLOGY 149402 1% 83% 10 Search VACUUM+METROLOGY Search VACUUM+METROLOGY
6 OUTGASSING RATE 135578 1% 69% 11 Search OUTGASSING+RATE Search OUTGASSING+RATE
7 VACUUM STANDARD 125500 0% 100% 7 Search VACUUM+STANDARD Search VACUUM+STANDARD
8 SPUTTER ION PUMP 109811 0% 88% 7 Search SPUTTER+ION+PUMP Search SPUTTER+ION+PUMP
9 HIGH VACUUM STANDARDS 107572 0% 100% 6 Search HIGH+VACUUM+STANDARDS Search HIGH+VACUUM+STANDARDS
10 TIZRV 107572 0% 100% 6 Search TIZRV Search TIZRV

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 CALCATELLI, A , (2013) THE DEVELOPMENT OF VACUUM MEASUREMENTS DOWN TO EXTREMELY HIGH VACUUM - XHV.MEASUREMENT. VOL. 46. ISSUE 2. P. 1029 -1039 37 80% 4
2 LI, DT , CHENG, YJ , LI, YW , ZHAO, L , SUN, WJ , WANG, YJ , (2017) A NUMERICAL SOLUTION OF DENSITY DISTRIBUTION FUNCTION OF WATER ADSORPTION SITES ON VACUUM TECHNICAL METAL SURFACES.VACUUM. VOL. 136. ISSUE . P. 14 -19 24 96% 0
3 MALYSHEV, OB , (2012) GAS DYNAMICS MODELLING FOR PARTICLE ACCELERATORS.VACUUM. VOL. 86. ISSUE 11. P. 1669-1681 31 76% 5
4 MAMUN, MAA , ELMUSTAFA, AA , STUTZMAN, ML , ADDERLEY, PA , POELKER, M , (2014) EFFECT OF HEAT TREATMENTS AND COATINGS ON THE OUTGASSING RATE OF STAINLESS STEEL CHAMBERS.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 32. ISSUE 2. P. - 25 81% 1
5 SHARMA, RK , JAGANNATH , BHATTACHARYA, S , TOKAS, RB , BHUSHAN, KG , SEN, S , GADKARI, SC , GUPTA, SK , (2015) DEPOSITION AND IN-SITU CHARACTERIZATION OF TI-ZR-V ALLOY THIN FILMS ANNEALED AT DIFFERENT TEMPERATURES UNDER ULTRA-HIGH VACUUM CONDITIONS.JOURNAL OF ALLOYS AND COMPOUNDS. VOL. 651. ISSUE . P. 375 -381 20 95% 1
6 KENDALL, BRF , (1999) IONIZATION GAUGE ERRORS AT LOW PRESSURES.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 17. ISSUE 4. P. 2041-2049 30 97% 13
7 LI, DT , JOUSTEN, K , (2003) COMPARISON OF SOME METROLOGICAL CHARACTERISTICS OF HOT AND COLD CATHODE IONISATION GAUGES.VACUUM. VOL. 70. ISSUE 4. P. 531-541 25 100% 12
8 ERJAVEC, B , SETINA, J , (2011) INVESTIGATIONS OF A METHOD FOR DETERMINING PUMPING SPEED AND SORPTION CAPACITY OF NONEVAPORABLE GETTERS BASED ON IN SITU CALIBRATED THROUGHPUT.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 29. ISSUE 5. P. - 20 100% 3
9 JOUSTEN, K , (2012) TRACEABILITY TO SI UNITS FOR VACUUM MEASUREMENT IN INDUSTRIAL APPLICATIONS.MEASUREMENT. VOL. 45. ISSUE 10. P. 2420 -2425 23 82% 1
10 PARK, C , HA, T , CHO, B , (2016) THERMAL OUTGASSING RATES OF LOW-CARBON STEELS.JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A. VOL. 34. ISSUE 2. P. - 19 90% 0

Classes with closest relation at Level 1


Rank Class id link
1 35436 STRAIGHT FIBER TYPE ARTIFICIAL MUSCLE//ATOMIC HYDROGEN BEAM//EARTH WORM PERISTALSIS
2 27313 PISTON GAUGE//PRIMARY PRESSURE STANDARD//METROLOGIA
3 26673 EFFUSION MOLECULAR BEAM//HIGH VACUUM CHEMICAL VAPOR DEPOSITION//ANGULAR DISTRIBUTION MODELING
4 23699 TURBOMOLECULAR PUMP//DRY SCROLL VACUUM PUMP//CIVIL AIR TRANSPORTAT MANAGEMENT
5 14874 ELECTRON CLOUD//PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS//ELECTRON CLOUD INSTABILITY
6 23500 HYDROGEN ISOTOPE//DEN DADN//BIXS
7 30025 HELIUM ATOM MICROSCOPY//CNR IMEM//SCANNING HELIUM MICROSCOPE
8 4425 HYDROGEN ISOTOPE SEPARATION//FUSION TECHNOLOGY//TRITIUM ENGN
9 37636 OPTIKA I SPEKTROSKOPIYA//ZHURNAL TEKHNICHESKOI FIZIKI//OPTICS AND SPECTROSCOPY
10 12855 RAREFIED GAS//RAREFIED GAS DYNAMICS//DISCRETE VELOCITY METHOD

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