Ultrafast Ionizing Radiation Detection by p–n Junctions Made with Single Crystals of Solution‐Processed Perovskite

2018 ◽  
Vol 4 (11) ◽  
pp. 1800237 ◽  
Author(s):  
Xin Wang ◽  
Yao Wu ◽  
Guanwen Li ◽  
Jun Wu ◽  
XiaoBing Zhang ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Single Crystals ◽  
Radiation Detection ◽  
Solution Processed

HgI2nanostructures obtained hydrothermally for application in ionizing radiation detection

2016 ◽  
Vol 49 (44) ◽  
pp. 445309 ◽  
Author(s):  
María Pérez Barthaburu ◽  
Isabel Galain ◽  
Ivana Aguiar ◽  
Heinkel Bentos Pereira ◽  
Laura Fornaro
Keyword(s):  
Ionizing Radiation ◽  
Radiation Detection

Low dose ionizing radiation detection using conjugated polymers

2005 ◽  
Vol 86 (13) ◽  
pp. 131902 ◽  
Author(s):  
E. A. B. Silva ◽  
J. F. Borin ◽  
P. Nicolucci ◽  
C. F. O. Graeff ◽  
T. Ghilardi Netto ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Conjugated Polymers ◽  
Low Dose ◽  
Radiation Detection

Diagnostic Range Ionizing Radiation and Reactive Oxygen Species Production: an Initial Experience

2021 ◽  
Vol 11 (5) ◽  
Author(s):  
Sirohi Shikha ◽  
Tandon Prof. Anupama ◽  
Banerjee Prof. B.D. ◽  
Kumar Ranjeet
Keyword(s):  
Reactive Oxygen Species ◽  
Free Radicals ◽  
Ionizing Radiation ◽  
Venous Blood ◽  
Radiation Detection ◽  
Control Sample ◽  
Reactive Oxygen ◽  
P Value ◽  
Oxygen Species ◽  
Mdct Examination

Radiation is a common occurrence in our daily lives that comes from both natural and man-made sources. Ionizing Radiation (IR) causes damage either directly or indirectly through the generation of reactive oxygen species (ROS). Oxidative damage to DNA, lipids, proteins, and many metabolites occurs through a complex series of processes that are enhanced by endogenous signalling which is activated by free radicals. Though literature is abundant on ROS and antioxidants at high doses, no study to the best of our knowledge has assessed the ROS levels after Multi Detector Computed Tomography (MDCT) examination (i.e. in diagnostic range radiation). The aim of the present study was to assess the production of ROS after diagnostic level radiation by MDCT examination and at 24 hour follow up. The study involved fifty patients posted for clinically indicated MDCT which were recruited. The average radiation dose was 2-9 mGy. Three blood samples were drawn, one prior to CT (control sample), within half an hour of CT (post CT) and 24 hrs after CT. 3 ml venous blood was withdrawn in aseptic conditions and immediately serum was isolated for ROS assessment. The blood examination results were compared in immediate and post 24 hour after MDCT and both were compared with control values and correlated with radiation parameters. Our results have shown a significant increase in ROS level in immediate post CT samples compared to prior CT scan samples (control) (p value <0.0001). The ROS levels reduced at 24 hours compared to immediate post CT, however they were still higher than control values. Our findings reflect that there is a rapid increase in free radicals production in the mitochondria after diagnostic level radiation. Detection of higher ROS levels at 24 hours suggests incomplete repair with the presence of some residual oxidative species at 24 hours.

scholarly journals Optical and electronic anisotropies in perovskitoid crystals of Cs3Bi2I9 studies of nuclear radiation detection

2018 ◽  
Vol 6 (46) ◽  
pp. 23388-23395 ◽  
Author(s):  
Qihao Sun ◽  
Yadong Xu ◽  
Hongjian Zhang ◽  
Bao Xiao ◽  
Xin Liu ◽  
...  
Keyword(s):  
Single Crystals ◽  
Radiation Detection ◽  
Nuclear Radiation ◽  
Α Particles

Cs3Bi2I9 single crystals with significant anisotropies show a capability of detecting [email protected] MeV α particles ((FWHM) of ∼32%).

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