Comparative study of TL and EPR properties of four solid solutions of garnets. Issue 2 (18th December 2012)

• Record Type: Journal Article
• Authors: Rocca, Rene R.; Watanabe, Shigueo; Barbosa, Renata F.; Cano, Nilo F.; Tatumi, Sonia H.; Stanek, Christopher R.; Nikl, Martin; Kovács, László; Greulich‐Weber, Siegmund
• Is Part Of: Physica status solidi. Volume 10:Issue 2(2013:Feb.)
• Page Start: 168
• Page End: 171
• Publication Date: 2012-12-18
• Subjects: Solid state physics -- Congresses; Solid state physics -- Periodicals; Solid state physics; Conference proceedings; Periodicals; 530.41
• DOI: 10.1002/pssc.201200490
• Languages: English
• ISSNs: 1862-6351

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>In the present work four solid solutions of peralspite garnets indicated PP, PS, R and A have been investigated as to their TL properties. The glow curves of PP, PS, R and A irradiated by gamma rays with dose from 10 to 1000 Gy (2000 in A) presented peaks around 150, 200, 260 and 360‐370 °C, but the response of these peaks to radiation doses varies from sample to sample. Also we present glow curves when samples were annealed at 500 °C for 30 min and irradiated to UV light. In other experiments samples irradiated to 1000 Gy were exposed to UV light; the TL intensity decreases under UV exposure. OSL measurements show a linear growth with radiation dose below 200 Gy. Almost straight line signal is obtained for EPR spectrum of natural PS sample. The change in the shape of EPR spectrum of PS sample annealed at high temperature in the range 800 to 1000 °C indicates that Fe²⁺ converts to Fe³⁺. This is confirmed by Molecular Absorption Spectroscopy measurements. (© 2012 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)</p> </abstract>