- Title
- Time-resolved luminescence of low sensitivity quartz from crystalline rocks
- Creator
- Chithambo, Makaiko L, Preusser, F, Ramseyer, K, Ogundare, F O
- Date
- 2007
- Type
- text
- Type
- article
- Identifier
- vital:6801
- Identifier
- http://hdl.handle.net/10962/d1004164
- Identifier
- https://doi.org/10.1016/j.radmeas.2006.07.005
- Description
- preprint
- Description
- Time-resolved luminescence spectra of low sensitivity natural quartz from crystalline rocks are presented. The luminescence was pulse-stimulated at width using 470 nm blue light from quartz separated from plutonic, metamorphic, volcanic and hydrothermal samples. Measurements were made at 20 °C. All samples show evidence of a short lifetime component less than long although in several cases too weak in intensity to be evaluated accurately. On the other hand, the value of the principal lifetime component varies considerably being about in metamorphic quartz, in plutonic quartz, and in one example of hydrothermal quartz. The results illustrate a new feature of luminescence from quartz for which lifetimes less than or greater than have never been reported at room temperature before. It is argued that the thermal provenance of the quartz and so the annealing it will have experienced influences the size of the observed lifetime. In particular, the results are explained in terms of a model consisting of three luminescence centers with the dominant lifetime linked to preferential recombination at one center depending on the thermal history of the sample and hence the hole concentration of the center.
- Format
- 19 pages, pdf
- Language
- English
- Relation
- Radiation Measurements, Chithambo, M.L. and Preusser, F. and K. Ramseyer and Ogundare, F.O. (2007) Time-resolved luminescence of low sensitivity quartz from crystalline rocks. Radiation Measurements, 42 (2). pp. 205-212, Radiation Measurements volume 42 number 2 205 212 2007 type="issn">1350-4487
- Rights
- Chithambo, M L
- Rights
- Preusser, F
- Rights
- Ramseyer, K
- Rights
- Ogundare, F O
- Rights
- Use of this resource is governed by the terms and conditions of the Radiation Measurements Self-archiving Policy
- Hits: 1099
- Visitors: 1258
- Downloads: 173
Collections
RU Department of Physics and Electronics
Chithambo, Makaiko Liwiro (Distinguished Prof)
SDG 09. Industry, Innovation and Infrastructure
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCEPDF | 460 KB | Adobe Acrobat PDF | View Details |