Thermoluminescence properties of CVD diamond films

Pospíšil, J.; Bulir, R.; Budínská, Z.; Novák, R.; Sopko, B.; Spěváček, V.; Čechák, T.; Hlídek, P.; Matějka, P.; Macková, Anna; Cejnarová, A.; Krása, Josef

Number of the records: 1

Thermoluminescence properties of CVD diamond films

1.

SYSNO ASEP	0185840
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Thermoluminescence properties of CVD diamond films
Author(s)	Pospíšil, J. (CZ) Bulir, R. (CZ) Budínská, Z. (CZ) Novák, R. (CZ) Sopko, B. (CZ) Spěváček, V. (CZ) Čechák, T. (CZ) Hlídek, P. (CZ) Matějka, P. (CZ) Macková, Anna (UJF-V)_{RID, ORCID, SAI} Cejnarová, A. (CZ) Krása, Josef (FZU-D)_{RID, ORCID}
Source Title	Physica Status Solidi A : Applied Research - ISSN 0031-8965 Roč. 199, č. 1 (2003), s. 131-137
Number of pages	7 s.
Language	eng - English
Country	DE - Germany
Keywords	radiation detectors ; solid targets ; laser
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	KSK1010104 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
Annotation	Two kinds of CVD diamond films were investigated with respect to their thermoluminescent (TL) properties, especially concerning their sensitivity to ionising radiation and to daylight. The films were characterised by means of Raman/photoluminescence/FTIR spectroscopy, XRD, RBS and elastic recoil detection analysis (ERDA). Thermoluminescent (TL) responses of these materials to photons provided by radionuclide Fe-55 source (approximate to6 keV) over the dose range from 1 to 100 mGy were measured. Typical TL glow curve is a result of two components, one with maximum in range 160-180 degreesC and the second, between 307-327 degreesC. In irradiated samples, the first peak is caused by the exposure to daylight, which increases overall TL signal, the second is caused by irradiation by gamma-photons. Exploitation of TL properties of CVD diamonds for a photon dosimetry is possible after careful daylight shielding. The sensitivity of used CVD diamond dosimeters was 10 times less than that of TLD 100 (LiF: Mg, Ti) Harshaw dosimeter.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2004

Number of the records: 1