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Titolo:
LASER-BEAM INDUCED REMOTE THERMOLUMINESCENCE (R-TL) IMAGE FOR FUTURE PLANETARY MATERIAL SURVEY
Autore:
IKEYA M; TAKAKI S; YAMANAKA C;
Indirizzi:
OSAKA UNIV,GRAD SCH SCI,DEPT EARTH & SPACE SCI TOYONAKA OSAKA 560 JAPAN
Titolo Testata:
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS
fascicolo: 4A, volume: 36, anno: 1997,
pagine: 449 - 452
SICI:
0021-4922(1997)36:4A<449:LIRT(I>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Keywords:
TL; LASER; REMOTE SENSING; HEAT DIFFUSION; CACO3; CO2 LASER; ASTEROID;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
M. Ikeya et al., "LASER-BEAM INDUCED REMOTE THERMOLUMINESCENCE (R-TL) IMAGE FOR FUTURE PLANETARY MATERIAL SURVEY", JPN J A P 2, 36(4A), 1997, pp. 449-452

Abstract

Thermoluminescence (TL) of calcite (CaCO3) irradiated by gamma-rays has been measured from a distance by heating with a CO2 infrared laser beam. The diameter of a TL spot at the exposure site increased due to thermal diffusion and became dark. The surrounding area showed TL in the form of a broad ring. TL images obtained after the exposure were compared with those simulated by numerically solving the equation of three-dimensional heat diffusion using the parameters of the TL peaks, i.e., frequency factors v(0I) = v(0II) = 5 x 10(11) s(-1) and activationenergies E-I = 1.28 and E-II = 1.58eV, the thermal conductivity and the specific heat. The remote TL (R-TL) may be used in the future for planetary survey by heating or exciting a ground object from a rover orfrom a spacecraft.

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Documento generato il 29/03/20 alle ore 15:14:58