A new automated system for combined luminescence and exo-electron measurements

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:443

Article

Autzen, M.¹  Poolton, N. R. J.¹  Murray, A. S.²  Kook, M.¹  Buylaert, J. -P^1,2 

[1] Tech Univ Denmark, Ctr Nucl Technol, DTU Riso Campus, DK-4000 Roskilde, Denmark

[2] Aarhus Univ, Dept Geosci, Nord Lab Luminescence Dating, Riso Campus, DK-4000 Roskilde, Denmark

关键词: TL;    OSL;    TSE;    OSE;    Exo-electrons;    HV-modulation;   

DOI  :  10.1016/j.nimb.2019.01.030

来源: Elsevier

【 摘 要 】

The measurement of OSL/TL relies on the initial trapping and subsequent release and recombination of charge in a suitable crystal structure. These measurements allow us to estimate the dose which the crystal has been subjected to and its age. During such processes, however, electrons can be emitted from the sample surface; the ability to measure such exo-electrons can provide information regarding the trapping process, as well as an alternative method of measuring trapped charge. Ideally, TL/OSL can be measured alongside exo-electrons. We will present a new design for an exo-electron detector compatible with the classic Rise) reader stimulation head featuring multiple anode configurations and the option for high-voltage modulation to reduce the UV component during TL/OSL measurements.

【 授权许可】

Free