scholarly journals Dosimetric Assessment of Routine X-Ray Examination at Selected Health Clinics in Perak Using Commercialized Optically-Stimulated Luminescence Dosimeter (OSLD)

2021 ◽  
Vol 47 (3) ◽  
pp. 213
Author(s):  
M. T. Saidin ◽  
A. A. Rahman ◽  
H. H. Harun ◽  
Y. M. Radzi ◽  
C. Anam ◽  
...  
2019 ◽  
Vol 22 ◽  
pp. 107
Author(s):  
L. M. Tsodoulos ◽  
K. Stamoulis ◽  
C. A. Papachristodoulou ◽  
K. G. Ioannides ◽  
S. Pavlides

We have investigated the application of luminescence dating to sediment and pottery samples from a paleoseismological trench excavated in the Gyrtoni Fault, Tyrnavos Basin, Central Greece. The samples were dated following the optically stimulated luminescence (OSL) dating method, using the Riso TL/OSL DA-20 reader. The OSL ages were obtained from chemically purified quartz and a single-aliquot regenerative-dose (SAR) protocol was followed for the equivalent dose (De) determination. Additionally, samples were collected and analyzed with the method of X-ray Fluorescence (XRF) spectrometry, in order to assess their elemental composition. Radioisotope sources (109Cd and 241Am) were used for sample excitation, while X-ray spectra were acquired using a Si(Li) detector coupled with standard electronics. The XRF data were submitted to principal component analysis (PCA). This statistical handling aimed to distinguish from which part of the upthrown fault block scarp-derived colluvium and alluvial deposits, parts of the downthrown block were derived and thus estimate the displacement. The results indicated that both the OSL dating method and the XRF analysis combined with PCA can serve as useful tools for paleoseismological investigations.


2001 ◽  
Vol 33 (5) ◽  
pp. 797-800 ◽  
Author(s):  
V. Chernov ◽  
R. Meléndrez Ao ◽  
T.M. Piters ◽  
M. Barboza-Flores

2004 ◽  
Vol 41 (6) ◽  
pp. 655-657 ◽  
Author(s):  
Leanne M Mallory-Greenough ◽  
John D Greenough

The thematic set provides examples of the many techniques that earth scientists can offer for use in archaeology. These studies use methods such as electron microprobe analysis, inductively coupled plasma – mass spectrometry, X-ray fluorescence, optically stimulated luminescence, and soil and sediment stratigraphic analysis. Materials examined range from soils to basalt and dacite artifacts, glass, ceramics, phytoliths, and even ore assay beads. They cover 8000 years of time and are derived from three continents. The diversity of materials and techniques underscores the potential for collaboration as we open new doors into our collective past.


Sign in / Sign up

Export Citation Format

Share Document