Thermoluminescent properties of Ni and Co doped synthetic, high pressure, high temperature diamonds: application to ionising radiation dosimetry.
Radiat Prot Dosimetry
; 100(1-4): 329-32, 2002.
Article
en En
| MEDLINE
| ID: mdl-12382890
An investigation of the thermoluminescence (TL) properties of high pressure, high temperature (HPHT) synthetic diamond crystals grown under diluted nickel or cobalt as solvent catalysts is reported. After a study of TL properties of 6 different samples, it is shown that a crystal grown with Ni+2%Ti and annealed at 2100 K presents an intense glow peak at around 490 K. This peak is characterised by a broad emission band centred at 530 nm (2.34 eV). This crystal presents a significant, reproducible and linear TL response relative to the absorbed dose up to an X ray air kerma of 10 Gy. All these features make this material suitable for ionising radiation dosimetry. A similar study is made on another crystal grown from pure Co, and a comparative review of the results does show that for dosimetry work, Ni-containing diamonds are more appropriate than those grown from Co catalyst.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dosimetría Termoluminiscente
/
Diamante
Idioma:
En
Revista:
Radiat Prot Dosimetry
Año:
2002
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Reino Unido