Class information for:
Level 1: PLUTONIUM//U 236//PU239240

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2731 2163 24.9 50%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
347 3       JOURNAL OF ENVIRONMENTAL RADIOACTIVITY//RADON//NUCLEAR SCIENCE & TECHNOLOGY 35941
768 2             JOURNAL OF ENVIRONMENTAL RADIOACTIVITY//CS 137//RADIOCESIUM 12290
2731 1                   PLUTONIUM//U 236//PU239240 2163

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 PLUTONIUM authKW 763056 12% 20% 267
2 U 236 authKW 384279 2% 83% 33
3 PU239240 authKW 280634 1% 76% 26
4 EXTRACTION CHROMATOGRAPHY authKW 238107 3% 25% 68
5 PLUTONIUM ISOTOPES authKW 219603 1% 68% 23
6 JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY journal 218590 19% 4% 410
7 NAKAMINATO MARINE RADIOECOL address 216842 1% 59% 26
8 ALPHA SPECTROMETRY authKW 199528 3% 21% 66
9 PU 240 PU 239 ATOM RATIO authKW 198495 1% 94% 15
10 GLOBAL FALLOUT authKW 180499 1% 47% 27

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 Nuclear Science & Technology 59641 49% 0% 1050
2 Chemistry, Inorganic & Nuclear 23465 37% 0% 801
3 Chemistry, Analytical 19397 41% 0% 880
4 Environmental Sciences 7039 28% 0% 613
5 Radiology, Nuclear Medicine & Medical Imaging 1723 12% 0% 259
6 Spectroscopy 1336 7% 0% 160
7 Physics, Nuclear 396 5% 0% 104
8 Instruments & Instrumentation 262 4% 0% 93
9 Public, Environmental & Occupational Health 239 6% 0% 123
10 Oceanography 231 3% 0% 60

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 NAKAMINATO MARINE RADIOECOL 216842 1% 59% 26
2 ENVIRONM RADIAT EFFECTS GRP 140861 1% 43% 23
3 ANALYT ENVIRONM RADIOCHEM CHAIR 114333 0% 90% 9
4 VERA 77912 1% 20% 27
5 ISOTOPE OCEANOG 70577 0% 100% 5
6 BIOSPHER ASSESSMENT WASTE DISPOSAL TEAM 58812 0% 83% 5
7 PL NUCL PHYS GRP 56453 0% 50% 8
8 RADIOCHEM ANAL 45168 0% 80% 4
9 INTERCOMPARISON STUDIES PROGRAM 42346 0% 100% 3
10 ISOTOP NUCL PHYS 42346 0% 100% 3

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 JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 218590 19% 4% 410
2 JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 172552 10% 6% 219
3 JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES 48937 5% 3% 110
4 RADIOCHIMICA ACTA 26427 4% 2% 87
5 APPLIED RADIATION AND ISOTOPES 24255 6% 1% 124
6 JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 14236 4% 1% 78
7 HEALTH PHYSICS 8735 3% 1% 62
8 RADIOCHEMISTRY 7067 1% 3% 18
9 SCIENCE OF THE TOTAL ENVIRONMENT 5573 4% 0% 90
10 JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS 5193 1% 1% 25

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 PLUTONIUM 763056 12% 20% 267 Search PLUTONIUM Search PLUTONIUM
2 U 236 384279 2% 83% 33 Search U+236 Search U+236
3 PU239240 280634 1% 76% 26 Search PU239240 Search PU239240
4 EXTRACTION CHROMATOGRAPHY 238107 3% 25% 68 Search EXTRACTION+CHROMATOGRAPHY Search EXTRACTION+CHROMATOGRAPHY
5 PLUTONIUM ISOTOPES 219603 1% 68% 23 Search PLUTONIUM+ISOTOPES Search PLUTONIUM+ISOTOPES
6 ALPHA SPECTROMETRY 199528 3% 21% 66 Search ALPHA+SPECTROMETRY Search ALPHA+SPECTROMETRY
7 PU 240 PU 239 ATOM RATIO 198495 1% 94% 15 Search PU+240+PU+239+ATOM+RATIO Search PU+240+PU+239+ATOM+RATIO
8 GLOBAL FALLOUT 180499 1% 47% 27 Search GLOBAL+FALLOUT Search GLOBAL+FALLOUT
9 PU ISOTOPES 177354 1% 74% 17 Search PU+ISOTOPES Search PU+ISOTOPES
10 PU 239 PU 240 120333 1% 47% 18 Search PU+239+PU+240 Search PU+239+PU+240

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 THAKUR, P , MULHOLLAND, GP , (2012) DETERMINATION OF NP-237 IN ENVIRONMENTAL AND NUCLEAR SAMPLES: A REVIEW OF THE ANALYTICAL METHOD.APPLIED RADIATION AND ISOTOPES. VOL. 70. ISSUE 8. P. 1747 -1778 135 82% 17
2 VAJDA, N , KIM, CK , (2011) DETERMINATION OF TRANSURANIUM ISOTOPES (PU, NP, AM) BY RADIOMETRIC TECHNIQUES: A REVIEW OF ANALYTICAL METHODOLOGY.ANALYTICAL CHEMISTRY. VOL. 83. ISSUE 12. P. 4688 -4719 126 87% 17
3 KETTERER, ME , SZECHENYI, SC , (2008) DETERMINATION OF PLUTONIUM AND OTHER TRANSURANIC ELEMENTS BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY: A HISTORICAL PERSPECTIVE AND NEW FRONTIERS IN THE ENVIRONMENTAL SCIENCES.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY. VOL. 63. ISSUE 7. P. 719 -737 122 78% 52
4 KIM, CS , KIM, CK , MARTIN, P , SANSONE, U , (2007) DETERMINATION OF PU ISOTOPE CONCENTRATIONS AND ISOTOPE RATIO BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY: A REVIEW OF ANALYTICAL METHODOLOGY.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. VOL. 22. ISSUE 7. P. 827-841 109 88% 54
5 ZHENG, J , TAGAMI, K , HOMMA-TAKEDA, S , BU, WT , (2013) THE KEY ROLE OF ATOMIC SPECTROMETRY IN RADIATION PROTECTION.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY. VOL. 28. ISSUE 11. P. 1676 -1699 123 53% 11
6 UCHIDA, SG , CAO, LG , BU, WT , ZHENG, J , PAN, SM , WANG, ZT , (2016) PLUTONIUM DETERMINATION IN SEAWATER BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY: A REVIEW.TALANTA. VOL. 151. ISSUE . P. 30 -41 67 84% 2
7 VAJDA, N , KIM, CK , (2010) DETERMINATION OF PU ISOTOPES BY ALPHA SPECTROMETRY: A REVIEW OF ANALYTICAL METHODOLOGY.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY. VOL. 283. ISSUE 1. P. 203 -223 68 86% 20
8 QIAO, JX , HOU, XL , MIRO, M , ROOS, P , (2009) DETERMINATION OF PLUTONIUM ISOTOPES IN WATERS AND ENVIRONMENTAL SOLIDS: A REVIEW.ANALYTICA CHIMICA ACTA. VOL. 652. ISSUE 1-2. P. 66 -84 77 70% 30
9 VAJDA, N , KIM, CK , (2010) DETERMINATION OF AM-241 ISOTOPE: A REVIEW OF ANALYTICAL METHODOLOGY.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY. VOL. 284. ISSUE 2. P. 341 -366 57 84% 20
10 LINDAHL, P , LEE, SH , WORSFOLD, P , KEITH-ROACH, M , (2010) PLUTONIUM ISOTOPES AS TRACERS FOR OCEAN PROCESSES: A REVIEW.MARINE ENVIRONMENTAL RESEARCH. VOL. 69. ISSUE 2. P. 73-84 79 59% 19

Classes with closest relation at Level 1


Rank Class id link
1 20347 NUCLEAR FORENSICS//URANIUM ORE CONCENTRATE//URANIUM PARTICLES
2 17851 PLASTIC SCINTILLATION//SR 90//STRONTIUM 90
3 16824 SELLAFIELD//IRISH SEA//JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
4 11000 FUKUSHIMA//FUKUSHIMA ACCIDENT//FUKUSHIMA DAI ICHI NUCLEAR POWER PLANT ACCIDENT
5 14126 ALPHA PARTICLE SPECTROMETRY//ALPHA SPECTROMETRY//SOLID ANGLE
6 28041 IIIT BASARA//NUCLEAR GRADE URANIUM//SPENT PWR FUELS
7 26166 IRON 55//ACCELERATOR WASTE//BORIC ACID CONCENTRATE
8 1487 RADIOCAESIUM//JOURNAL OF ENVIRONMENTAL RADIOACTIVITY//RADIOCESIUM
9 11996 PO 210//POLONIUM//POLONIUM 210
10 25268 TECHA POPULATION//TECHA RIVER//YENISEY

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