SU-E-I-47: Characterization of Beryllium Oxide Optically Stimulated Luminescence Detectors for Use in Diagnostic Radiology

2011 ◽  
Vol 38 (6Part4) ◽  
pp. 3406-3406
Author(s):  
S Eller ◽  
M Rodriguez ◽  
C Ruan ◽  
E Yukihara
Keyword(s):  
Beryllium Oxide ◽  
Optically Stimulated Luminescence ◽  
Diagnostic Radiology ◽  
Luminescence Detectors

scholarly journals Characterization of optically stimulated luminescence dosemeters to measure organ doses in diagnostic radiology

2012 ◽  
Vol 41 (3) ◽  
pp. 211-216 ◽  
Author(s):  
A Endo ◽  
T Katoh ◽  
I Kobayashi ◽  
R Joshi ◽  
J Sur ◽  
...  
Keyword(s):  
Optically Stimulated Luminescence ◽  
Diagnostic Radiology ◽  
Organ Doses

scholarly journals Estimating the age and mechanism of boulder transport related with extreme waves using lichenometry

2020 ◽  
Vol 44 (6) ◽  
pp. 870-897
Author(s):  
Maria A Oliveira ◽  
Esteve Llop ◽  
César Andrade ◽  
Cristina Branquinho ◽  
Ronald Goble ◽  
...  
Keyword(s):  
Age Estimation ◽  
Alternative Explanation ◽  
Estimation Method ◽  
Cost Effective ◽  
Optically Stimulated Luminescence ◽  
Extreme Waves ◽  
Non Destructive ◽  
Boulder Deposits ◽  
Lichen Growth

Tsunamis and storms cause considerable coastal flooding, numerous fatalities, destruction of structures, and erosion. The characterization of energy and frequency associated with each wave contribute to the risk assessment in coastal regions. Coastal boulder deposits represent a physical proof of extreme inundation and allow us to study the effects of marine floods further back in time than instrumental and historical records. Age estimation of these deposits is challenging due to lack of materials (such as sand, shells, corals, or organic matter) that retain information about the passage of time. Lichenometry, a simple age estimation method, which is cost-effective, quick to apply, and non-destructive, is here proposed as a solution. A lichen growth model for a calcium-tolerant lichen species was developed and used to estimate the age of a boulder deposit related to extreme marine inundation(s) in Portugal. Estimated ages indicate several very recent events (<700 years) for most of the boulders’ stabilization and agree with results obtained with optically stimulated luminescence of marine sands found beneath boulders. Frequent and recent boulder transport implies a storm-origin for this deposit. These conclusions contrast with other works describing identical deposits that are attributed to paleotsunamis. This study presents a methodology using lichenometry as a successful alternative for age estimation in rocky coastal settings. These results offer an alternative explanation for coastal boulder deposits found on the west coast of Portugal.

Fabrication and characterization of fiber-optic dosimeters for diagnostic radiology usages

2012 ◽  
Author(s):  
W. J. Yoo ◽  
S. H. Shin ◽  
K.-T. Han ◽  
D. Jeon ◽  
J.-Y. Park ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Diagnostic Radiology ◽  
Fabrication And Characterization

Tem of Beo Aerosols: Materials Aspects of Method Development in Studying Chronic Beryllium Disease

2001 ◽  
Vol 7 (S2) ◽  
pp. 482-483
Author(s):  
Robert M. Dickerson ◽  
Ronald C. Scripsick ◽  
Gregory A. Day ◽  
Aleksandr B. Stefaniak ◽  
Eric J. Peterson
Keyword(s):  
Method Development ◽  
Electrostatic Precipitator ◽  
Beryllium Oxide ◽  
Chronic Beryllium Disease ◽  
Dissolution Studies ◽  
Air Stream ◽  
Prepared Material ◽  
Beryllium Disease

The present work is a small portion of a multi-disciplinary science-based study of the physicochemical properties of respirable aerosols containing beryllium. The working hypothesis is that Chronic Beryllium Disease (CBD) is by controlled dissolution of Be particles in the lung. Recent studies have shown correlations between specific Be production processes and the development of Be sensitivity and CBD. in Beryllium Oxide (BeO) production, 9.8% of the workers develop a sensitivity to Be and 4.9% develop CBD. in vitro cellular dose-response relations have been observed for BeO particles.This study involves a characterization of BeO materials sampled from the air stream around the production process at Brush Wellman Inc. (Elmore, OH) and laboratory-prepared BeO. One purpose of this work is to determine if lab-prepared material is a good surrogate for the process-generated aerosols for cellular dissolution studies. Both materials were size-separated into six fractions using a five-stage cyclone followed by a electrostatic precipitator (ESP).

scholarly journals Characterization of optically stimulated luminescence for assessment of breast doses in mammography screening

2016 ◽  
Vol 51 (1) ◽  
pp. 51-58 ◽  
Author(s):  
N. Alothmany ◽  
N.I. Molla ◽  
M. Yusuf ◽  
A. Saoudi ◽  
N. Mail ◽  
...  
Keyword(s):  
Mammography Screening ◽  
Optically Stimulated Luminescence

Preliminary study on development and characterization of high sensitivity LiAlO2 optically stimulated luminescence material

2012 ◽  
Vol 47 (9) ◽  
pp. 837-840 ◽  
Author(s):  
J.I. Lee ◽  
A.S. Pradhan ◽  
J.L. Kim ◽  
I. Chang ◽  
B.H. Kim ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Optically Stimulated Luminescence ◽  
Preliminary Study
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