A Raman spectroscopic study on the structural disorder of
monazite-(Ce)

J 2012

A Raman spectroscopic study on the structural disorder of monazite-(Ce)

RUSCHEL, Katja; Lutz NASDALA; Andreas KRONZ; John M HANCHAR; Daniel M TOEBBENS et al.

Základní údaje

Originální název

A Raman spectroscopic study on the structural disorder of monazite-(Ce)

Autoři

RUSCHEL, Katja; Lutz NASDALA; Andreas KRONZ; John M HANCHAR; Daniel M TOEBBENS; Radek ŠKODA; Friedrich FINGER a Andreas MOELLER

Vydání

Mineralogy and Petrology, Austria, Springer Verlag, 2012, 0930-0708

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Rakousko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.681

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/12:00064416

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1007/s00710-012-0197-7

UT WoS

000303587400003

Klíčová slova anglicky

RADIOACTIVITY-INDUCED DAMAGE; RADIATION-DAMAGE; NATURAL MONAZITE; ORTHO-PHOSPHATES; ALTERED ZIRCON; SOLID-SOLUTION; WASTE FORMS; SPECTRA; MICROPROBE; CHEMISTRY

Štítky

AKR, rivok

Změněno: 8. 4. 2013 21:51, Ing. Andrea Mikešková

Anotace

V originále

This study addresses whether Raman spectra can be used to estimate the degree of accumulated radiation damage in monazite-(Ce) samples whose chemical composition was previously determined. Our results indicate that the degree of disorder in monazite-(Ce), as observed from increasing Raman band broadening, generally depends on both the structural state (i.e., radiation damage) and the chemical composition (i.e., incorporation of non-formula elements). The chemical effects were studied on synthetic orthophosphates grown using the Li-Mo flux method, and non radiation-damaged analogues of the naturally radiation-damaged monazite-(Ce) samples, produced by dry annealing. We found that the "chemical" Raman-band broadening of natural monazite-(Ce) can be predicted by the empirical formula, FWHM[cm(-1)] = 3.95 + 26.66 x (Th+U+Ca+PB)[apfu] where, FWHM = full width at half maximum of the main Raman band of monazite-(Ce) (i.e., the symmetric PO4 stretching near 970 cm(-1)), and (Th+U+Ca+Pb) = sum of the four elements in apfu (atoms per formula unit). Provided the chemical composition of a natural monazite-(Ce) is known, this "chemical band broadening" can be used to estimate the degree of structural radiation damage from the observed FWHM of the nu(1)(PO4) band of that particular sample using Raman spectroscopy. Our annealing studies on a wide range of monazite-(Ce) reference materials and other monazite-(Ce) samples confirmed that this mineral virtually never becomes highly radiation damaged. Potential advantages and the practical use of the proposed method in the Earth sciences are discussed.

Citovat

RUSCHEL, Katja; Lutz NASDALA; Andreas KRONZ; John M HANCHAR; Daniel M TOEBBENS; Radek ŠKODA; Friedrich FINGER a Andreas MOELLER. A Raman spectroscopic study on the structural disorder of monazite-(Ce). Mineralogy and Petrology. Austria: Springer Verlag, 2012, roč. 105, 1-2, s. 41-55. ISSN 0930-0708. Dostupné z: https://doi.org/10.1007/s00710-012-0197-7.

@article{1092116,
   author = {Ruschel, Katja and Nasdala, Lutz and Kronz, Andreas and Hanchar, John M and Toebbens, Daniel M and Škoda, Radek and Finger, Friedrich and Moeller, Andreas},
   article_location = {Austria},
   article_number = {1-2},
   doi = {https://doi.org/10.1007/s00710-012-0197-7},
   keywords = {RADIOACTIVITY-INDUCED DAMAGE; RADIATION-DAMAGE; NATURAL MONAZITE; ORTHO-PHOSPHATES; ALTERED ZIRCON; SOLID-SOLUTION; WASTE FORMS; SPECTRA; MICROPROBE; CHEMISTRY},
   language = {eng},
   issn = {0930-0708},
   journal = {Mineralogy and Petrology},
   title = {A Raman spectroscopic study on the structural disorder of monazite-(Ce)},
   volume = {105},
   year = {2012}
}

TY  - JOUR
ID  - 1092116
AU  - Ruschel, Katja - Nasdala, Lutz - Kronz, Andreas - Hanchar, John M - Toebbens, Daniel M - Škoda, Radek - Finger, Friedrich - Moeller, Andreas
PY  - 2012
TI  - A Raman spectroscopic study on the structural disorder of monazite-(Ce)
JF  - Mineralogy and Petrology
VL  - 105
IS  - 1-2
SP  - 41-55
EP  - 41-55
PB  - Springer Verlag
SN  - 09300708
KW  - RADIOACTIVITY-INDUCED DAMAGE
KW  - RADIATION-DAMAGE
KW  - NATURAL MONAZITE
KW  - ORTHO-PHOSPHATES
KW  - ALTERED ZIRCON
KW  - SOLID-SOLUTION
KW  - WASTE FORMS
KW  - SPECTRA
KW  - MICROPROBE
KW  - CHEMISTRY
N2  - This study addresses whether Raman spectra can be used to estimate the degree of accumulated radiation damage in monazite-(Ce) samples whose chemical composition was previously determined. Our results indicate that the degree of disorder in monazite-(Ce), as observed from increasing Raman band broadening, generally depends on both the structural state (i.e., radiation damage) and the chemical composition (i.e., incorporation of non-formula elements). The chemical effects were studied on synthetic orthophosphates grown using the Li-Mo flux method, and non radiation-damaged analogues of the naturally radiation-damaged monazite-(Ce) samples, produced by dry annealing. We found that the "chemical" Raman-band broadening of natural monazite-(Ce) can be predicted by the empirical formula, FWHM[cm(-1)] = 3.95 + 26.66 x (Th+U+Ca+PB)[apfu] where, FWHM = full width at half maximum of the main Raman band of monazite-(Ce) (i.e., the symmetric PO4 stretching near 970 cm(-1)), and (Th+U+Ca+Pb) = sum of the four elements in apfu (atoms per formula unit). Provided the chemical composition of a natural monazite-(Ce) is known, this "chemical band broadening" can be used to estimate the degree of structural radiation damage from the observed FWHM of the nu(1)(PO4) band of that particular sample using Raman spectroscopy. Our annealing studies on a wide range of monazite-(Ce) reference materials and other monazite-(Ce) samples confirmed that this mineral virtually never becomes highly radiation damaged. Potential advantages and the practical use of the proposed method in the Earth sciences are discussed.
ER  -

RUSCHEL, Katja; Lutz NASDALA; Andreas KRONZ; John M HANCHAR; Daniel M TOEBBENS; Radek ŠKODA; Friedrich FINGER a Andreas MOELLER. A Raman spectroscopic study on the structural disorder of monazite-(Ce). \textit{Mineralogy and Petrology}. Austria: Springer Verlag, 2012, roč.~105, 1-2, s.~41-55. ISSN~0930-0708. Dostupné z: https://doi.org/10.1007/s00710-012-0197-7.

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