Class information for:
Level 2: ASTEC VACUUM SCI GRP//SPINNING ROTOR GAUGE//TURBOMOLECULAR PUMP

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
2534 3313 15.1 36%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 3)


ID, lev.
above		 Publications Label for level above
147 59857 NUCLEAR FUSION//FUSION ENGINEERING AND DESIGN//PLASMA PHYSICS AND CONTROLLED FUSION

Classes in level below (level 1)


ID, lev. below Publications Label for level below
9799 1054 ASTEC VACUUM SCI GRP//NEG//TIZRV
12477 840 VACUUM METROLOGY//SPINNING ROTOR GAUGE//IONIZATION GAUGE
21448 360 TURBOMOLECULAR PUMP//DRY SCROLL VACUUM PUMP//TURBOMOLECULAR PUMP TMP
24891 249 PRESSURE METROLOGY//PISTON GAUGE//SECT ACOUSTOELECT
25327 236 WATER DEW POINT//ATMOSPHERIC PRESSURE IONIZATION MASS SPECTROMETER//CAPACITOR SENSOR
25786 224 EFFUSION MOLECULAR BEAM//MAXWELLIAN DISTRIBUTION FUNCTION//EBARA CORP
27989 177 SEALED DISCHARGE//CONTINUOUS EMISSION MONITORING//ENCLOSED INDUCTIVELY COUPLED PLASMA
28200 173 BENTHOLOGY//CHIEF OF STATE//GOVERNMENTAL DATA

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 ASTEC VACUUM SCI GRP Address 24 91% 0% 10
2 SPINNING ROTOR GAUGE Author keyword 17 79% 0% 11
3 TURBOMOLECULAR PUMP Author keyword 15 62% 0% 16
4 SEALED DISCHARGE Author keyword 14 100% 0% 7
5 VACUUM METROLOGY Author keyword 13 80% 0% 8
6 NEG Author keyword 12 53% 0% 16
7 TIZRV Author keyword 12 86% 0% 6
8 GETTER Author keyword 10 33% 1% 25
9 OUTGASSING RATE Author keyword 10 58% 0% 11
10 VAKUUM-TECHNIK Journal 9 24% 1% 33

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 SPINNING ROTOR GAUGE 17 79% 0% 11 Search SPINNING+ROTOR+GAUGE Search SPINNING+ROTOR+GAUGE
2 TURBOMOLECULAR PUMP 15 62% 0% 16 Search TURBOMOLECULAR+PUMP Search TURBOMOLECULAR+PUMP
3 SEALED DISCHARGE 14 100% 0% 7 Search SEALED+DISCHARGE Search SEALED+DISCHARGE
4 VACUUM METROLOGY 13 80% 0% 8 Search VACUUM+METROLOGY Search VACUUM+METROLOGY
5 NEG 12 53% 0% 16 Search NEG Search NEG
6 TIZRV 12 86% 0% 6 Search TIZRV Search TIZRV
7 GETTER 10 33% 1% 25 Search GETTER Search GETTER
8 OUTGASSING RATE 10 58% 0% 11 Search OUTGASSING+RATE Search OUTGASSING+RATE
9 SPUTTER ION PUMP 9 83% 0% 5 Search SPUTTER+ION+PUMP Search SPUTTER+ION+PUMP
10 NON EVAPORABLE GETTER NEG 8 75% 0% 6 Search NON+EVAPORABLE+GETTER+NEG Search NON+EVAPORABLE+GETTER+NEG

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 VACUUM PROPERTIES 29 88% 0% 14
2 PUMPING CHARACTERISTICS 24 91% 0% 10
3 IONIZATION GAUGES 21 90% 0% 9
4 IONIZATION GAUGE 18 65% 1% 17
5 NONEVAPORABLE GETTER FILMS 17 62% 1% 18
6 OUTGASSING RATE 17 68% 0% 15
7 NONEVAPORABLE GETTER 17 72% 0% 13
8 RESIDUAL GAS ANALYZER 15 82% 0% 9
9 GETTER MATERIALS 15 88% 0% 7
10 TEMPERATURE PUMPING CHARACTERISTICS 15 88% 0% 7

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 VAKUUM-TECHNIK 9 24% 1% 33

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
RECOMMENDED PRACTICES FOR THE CALIBRATION AND USE OF LEAKS 1992 54 12 100%
Techniques for the measurement of trace moisture in high-purity electronic specialty gases 2003 35 61 51%
Process analytical chemistry for spectroscopists 1998 53 16 31%
KNUDSEN-FLOW 75 YEARS ON - THE CURRENT STATE-OF-THE-ART FOR FLOW OF RAREFIED-GASES IN TUBES AND SYSTEMS 1986 52 23 74%
Review of heavy-ion induced desorption studies for particle accelerators 2008 7 18 39%
HISTORY OF ULTRAHIGH-VACUUM PRESSURE MEASUREMENTS 1994 7 17 100%
Primary Vacuum Standard for UHV Range - Standing Experience and Present Problems 2009 0 24 96%
Collection and determination of metal contaminants in gases - A review 1997 6 47 55%
A survey of the principles for primary standards for atmospheric halogenated-hydrocarbon-leaks 2015 0 23 65%
Comparative Analysis of Monitoring Devices for Particulate Content in Exhaust Gases 2014 1 15 20%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 ASTEC VACUUM SCI GRP 24 91% 0.3% 10
2 SM GRP 6 100% 0.1% 4
3 SECT ACOUSTOELECT 3 57% 0.1% 4
4 ASTEC ACCELERATOR SCI TECHNOL 3 100% 0.1% 3
5 FAT MEAT TECHNOL 3 100% 0.1% 3
6 IMGC 3 30% 0.3% 9
7 IST METROL G COLONNETTI 3 20% 0.4% 14
8 ASTEC 3 21% 0.4% 12
9 DIP MECCAN STRUTT AMBIENTE TERRITORIO 2 67% 0.1% 2
10 NMIJ AIST 2 67% 0.1% 2

Related classes at same level (level 2)


Rank Relatedness score Related classes
1 0.0000022770 TRITIUM//TLK//TRITIUM ENGN
2 0.0000006023 IMPREGNATED CATHODES//OXIDE CATHODE//SCANDATE CATHODE
3 0.0000005983 PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS//PARTICLE ACCELERATORS//PROTON ENGN FRONTIER PROJECT
4 0.0000005409 MEMBRANE INTRODUCTION MASS SPECTROMETRY//RESIDUAL SOLVENTS//PL ENVIRONM S
5 0.0000005261 FIELD EMISSION//VACUUM MICROELECTRONICS//FIELD EMITTER ARRAY
6 0.0000005044 BOLTZMANN EQUATION//JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS//RAREFIED GAS DYNAMICS
7 0.0000004468 SLIP FLOW//MICROCHANNEL//VELOCITY SLIP
8 0.0000004339 METROLOGIA//ITS 90//METROL QUAL MIRS UL FE LMK
9 0.0000004174 PHOTORESIST REMOVAL//WET OZONE//HYDROGEN TERMINATION
10 0.0000003765 HIPIMS//HPPMS//HIGH POWER IMPULSE MAGNETRON SPUTTERING