Class information for:
Level 1: PLUTONIUM//PU 240 PU 239 ATOM RATIO//PU239240

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
1778 2418 23.7 46%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
984 10081 JOURNAL OF ENVIRONMENTAL RADIOACTIVITY//RADIOCAESIUM//CS 137

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 PLUTONIUM Author keyword 56 19% 11% 258
2 PU 240 PU 239 ATOM RATIO Author keyword 27 92% 0% 11
3 PU239240 Author keyword 27 71% 1% 22
4 NAKAMINATO MARINE RADIOECOL Address 23 59% 1% 26
5 EXTRACTION CHROMATOGRAPHY Author keyword 23 28% 3% 69
6 SR 90 Author keyword 22 23% 3% 82
7 ANALYT ENVIRONM RADIOCHEM CHAIR Address 21 90% 0% 9
8 PLUTONIUM ISOTOPES Author keyword 18 61% 1% 19
9 GLOBAL FALLOUT Author keyword 17 48% 1% 26
10 PLASTIC SCINTILLATION Author keyword 17 72% 1% 13

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 PLUTONIUM 56 19% 11% 258 Search PLUTONIUM Search PLUTONIUM
2 PU 240 PU 239 ATOM RATIO 27 92% 0% 11 Search PU+240+PU+239+ATOM+RATIO Search PU+240+PU+239+ATOM+RATIO
3 PU239240 27 71% 1% 22 Search PU239240 Search PU239240
4 EXTRACTION CHROMATOGRAPHY 23 28% 3% 69 Search EXTRACTION+CHROMATOGRAPHY Search EXTRACTION+CHROMATOGRAPHY
5 SR 90 22 23% 3% 82 Search SR+90 Search SR+90
6 PLUTONIUM ISOTOPES 18 61% 1% 19 Search PLUTONIUM+ISOTOPES Search PLUTONIUM+ISOTOPES
7 GLOBAL FALLOUT 17 48% 1% 26 Search GLOBAL+FALLOUT Search GLOBAL+FALLOUT
8 PLASTIC SCINTILLATION 17 72% 1% 13 Search PLASTIC+SCINTILLATION Search PLASTIC+SCINTILLATION
9 ANTHROPOGENIC RADIONUCLIDES 15 62% 1% 16 Search ANTHROPOGENIC+RADIONUCLIDES Search ANTHROPOGENIC+RADIONUCLIDES
10 ALPHA SPECTROMETRY 15 21% 3% 61 Search ALPHA+SPECTROMETRY Search ALPHA+SPECTROMETRY

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 PU ISOTOPES 105 80% 3% 66
2 PLUTONIUM ISOTOPES 91 70% 3% 75
3 PLUTONIUM 63 16% 15% 362
4 PU 240 PU 239 ATOM RATIOS 57 95% 1% 19
5 GLOBAL FALLOUT 56 80% 1% 35
6 SR 90 52 28% 7% 158
7 PU 239 PU 240 52 56% 3% 63
8 EXTRACTION CHROMATOGRAPHY 49 34% 5% 117
9 FALLOUT PLUTONIUM 39 67% 1% 35
10 AM 241 37 33% 4% 93

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Determination of radiostrontium isotopes: A review of analytical methodology 2010 41 68 79%
Determination of Pu isotope concentrations and isotope ratio by inductively coupled plasma mass spectrometry: a review of analytical methodology 2007 51 124 87%
Release of Plutonium Isotopes into the Environment from the Fukushima Daiichi Nuclear Power Plant Accident: What Is Known and What Needs to Be Known 2013 15 64 58%
Determination of plutonium and other transuranic elements by inductively coupled plasma mass spectrometry: A historical perspective and new frontiers in the environmental sciences 2008 43 151 77%
Determination of Np-237 in environmental and nuclear samples: A review of the analytical method 2012 11 157 82%
Determination of Transuranium Isotopes (Pu, Np, Am) by Radiometric Techniques: A Review of Analytical Methodology 2011 10 135 87%
Critical comparison of radiometric and mass spectrometric methods for the determination of radionuclides in environmental, biological and nuclear waste samples 2008 76 254 33%
Determination of Pu isotopes by alpha spectrometry: a review of analytical methodology 2010 15 75 87%
Determination of plutonium isotopes in waters and environmental solids: A review 2009 24 106 68%
The key role of atomic spectrometry in radiation protection 2013 7 231 51%

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 NAKAMINATO MARINE RADIOECOL 23 59% 1.1% 26
2 ANALYT ENVIRONM RADIOCHEM CHAIR 21 90% 0.4% 9
3 ENVIRONM RADIAT EFFECTS GRP 12 42% 0.9% 22
4 ISOTOPE OCEANOG 8 100% 0.2% 5
5 PL NUCL PHYS GRP 7 57% 0.3% 8
6 RADIOCHEM ANAL 6 80% 0.2% 4
7 RADIOCHIM RADIOECOL 5 50% 0.3% 7
8 ENVIRONM RADIAT ASSESSMENT 4 75% 0.1% 3
9 MARINE ENVIRONM S 4 21% 0.7% 16
10 RADIOECOL 3 12% 1.1% 27

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000190482 SELLAFIELD//EU INGN TECN AGR//IRISH SEA
2 0.0000160537 NUCLEAR FORENSICS//URANIUM ORE CONCENTRATE//TRINITITE
3 0.0000146698 FUKUSHIMA ACCIDENT//FUKUSHIMA DAI ICHI NUCLEAR POWER PLANT ACCIDENT//FUKUSHIMA DAI ICHI ACCIDENT
4 0.0000109408 ALPHA PARTICLE SPECTROMETRY//PA 233//ALPHA SPECTROMETRY
5 0.0000099948 PO 210//POLONIUM//POLONIUM 210
6 0.0000093449 IRON 55//ACTIVATED CONCRETE//BIOLOGICAL SHIELD
7 0.0000092103 LUMINOPHORES//SEDIMENT REWORKING//PB 210
8 0.0000092028 RADIOCAESIUM//JOURNAL OF ENVIRONMENTAL RADIOACTIVITY//RADIOCESIUM
9 0.0000083708 GAMMA COINCIDENCES//BI 207//ELLIOT LAKE
10 0.0000082359 TECHA POPULATION//TECHA RIVER//YENISEY