EFFECTS OF TRIVALENT METAL IMPURITIES ON RADIATION-INDUCED RADICALS IN CALCITE

被引：3

作者：

KAI, A ^{[1
]}

MURATA, T ^{[1
]}

MIKI, T ^{[1
]}

机构：

[1] YAMAGUCHI UNIV,CTR COLLABORAT RES,UBE,YAMAGUCHI 755,JAPAN

来源：

APPLIED RADIATION AND ISOTOPES | 1993年 / 44卷 / 1-2期

关键词：

ELECTRON SPIN RESONANCE; CALCITE; RADICAL; VALENCE CHANGE; AL3+; SC3+; Y3+; FE3+; FE2+; CO2-; SULFITE; RADIATION;

D O I：

10.1016/0969-8043(93)90237-5

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Effects of Al3+, Sc+3, Y3+ and Fe3+ on radiation-induced radicals in calcite are investigated by ESR. Doping with Al3+, Sc3+ and Y3+ ions increases the formation yield of isotropic CO2- centers (g = 2.0007). The increase was considered to be related to abundant water molecules incorporated together with the M3+ ions. Radicals associated with Al3+ and Sc3+ were not observed, while Y3+-stabilized CO33- ions were confirmed. Iron suppressed the yield of the isotropic CO2- radicals and sulfite-associated radicals (g(perpendicular-to) = 2.0038 and g(parallel-to) = 2.0024). The suppression effect was explained by the valence change of iron in the vicinity of the radicals.

引用

页码：311 / 314

页数：4

共 50 条

[1] Radiation-induced cathodoluminescent signatures in calcite
Silletti, Danielle K.
Brokus, Sarah A.
Earlywine, Elly B.
Borycz, Joshua D.
Peaslee, Graham F.
DeYoung, Paul A.
Peters, Nickie J.
Robertson, J. David
Buscaglia, JoAnn
RADIATION MEASUREMENTS, 2012, 47 (03) : 195 - 200
[2] RADIATION-INDUCED TRACKS IN CALCITE CRYSTALS
BRITO, U
LALOU, C
EARTH AND PLANETARY SCIENCE LETTERS, 1969, 6 (02) : 155 - &
[3] BIOLOGICAL EFFECTS OF RADIATION-INDUCED FREE RADICALS IN FERN SPORES
DODD, NJF
EBERT, M
BRITISH JOURNAL OF RADIOLOGY, 1969, 42 (494): : 159 - &
[4] Radiation-induced redistribution of implanted impurities in Al
Kothari, DC
Kulkarni, VN
Miotello, A
Guzman, L
Linker, G
Strehlau, B
SURFACE & COATINGS TECHNOLOGY, 1996, 83 (1-3): : 88 - 92
[5] RADIATION-INDUCED PARAMAGNETIC SPECIES IN NATURAL CALCITE SPELEOTHEMS
ROSSI, AM
POUPEAU, G
APPLIED RADIATION AND ISOTOPES, 1989, 40 (10-12) : 1133 - 1137
[6] Radiation-induced radicals in hydrated magnesium sulfate
Tani, Atsushi
Hasegawa, Naomi
Norizawa, Kimihiro
Yada, Takeshi
Ikeya, Motoji
RADIATION MEASUREMENTS, 2012, 47 (09) : 890 - 893
[7] DISTRIBUTION OF RADIATION-INDUCED RADICALS IN SOME HEXOSES
NEUBACHER, H
ZEITSCHRIFT FUR NATURFORSCHUNG PART B-CHEMIE BIOCHEMIE BIOPHYSIK BIOLOGIE UND VERWANDTEN GEBIETE, 1969, B 24 (09): : 1184 - +
[8] RADIATION-INDUCED AND BIOCHEMICAL GENERATION OF OXYGEN RADICALS
LENGFELDER, E
FORTSCHRITTE DER MEDIZIN, 1978, 96 (38) : 1932 - 1932
[9] MICROWAVE SATURATION IN RADIATION-INDUCED FREE RADICALS
SIMMONS, JA
JOURNAL OF CHEMICAL PHYSICS, 1962, 36 (02): : 469 - &
[10] Effects of Aminophenol Derivatives on Radiation-Induced Reactions Involving Various Organic Radicals
G. A. Ksendzova
V. L. Sorokin
I. P. Edimecheva
O. I. Shadyro
High Energy Chemistry, 2004, 38 : 364 - 368

← 1 2 3 4 5 →