scholarly journals Diacetylene-Based Colorimetric Radiation Sensors for the Detection and Measurement of γ Radiation during Blood Irradiation

ACS Omega ◽  
2021 ◽  
Vol 6 (14) ◽  
pp. 9482-9491
Author(s):  
Apoorva Mittal ◽  
Shalini Verma ◽  
Gopishankar Natanasabapathi ◽  
Pratik Kumar ◽  
Akhilesh K. Verma
Keyword(s):  
Γ Radiation ◽  
Blood Irradiation ◽  
Radiation Sensors

Sensors and Systems for the Detection of Explosive Devices - An Overview

2012 ◽  
Vol 19 (1) ◽  
pp. 3-28 ◽  
Author(s):  
Zbigniew Bielecki ◽  
Jacek Janucki ◽  
Adam Kawalec ◽  
Janusz Mikołajczyk ◽  
Norbert Pałka ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Magnetic Resonance ◽  
Chemical Sensors ◽  
Optical Radiation ◽  
Research Projects ◽  
Explosive Material ◽  
Γ Radiation ◽  
Explosive Devices ◽  
Radiation Sensors

Sensors and Systems for the Detection of Explosive Devices - An Overview The paper presents analyses of current research projects connected with explosive material sensors. Sensors are described assigned to X and γ radiation, optical radiation sensors, as well as detectors applied in gas chromatography, electrochemical and chemical sensors. Furthermore, neutron techniques and magnetic resonance devices were analyzed. Special attention was drawn to optoelectronic sensors of explosive devices.

Response fitting in low-cost radiation sensors

2010 ◽  
Vol 1 (08) ◽  
pp. 920-925
Author(s):  
A. Gómez Moreno ◽  
P.J. Casanova Peláez ◽  
F.A. Díaz Garrido ◽  
J.M. Palomar Carnicero ◽  
R. López García ◽  
...  
Keyword(s):  
Low Cost ◽  
Fitting In ◽  
Radiation Sensors

Radiation Effects on Hollandite Ceramics developed for Radioactive Cesium Immobilization

2003 ◽  
Vol 792 ◽  
Author(s):  
V. Aubin ◽  
D. Caurant ◽  
D. Gourier ◽  
N. Baffier ◽  
S. Esnouf ◽  
...  
Keyword(s):  
Radiation Effects ◽  
Liquid Waste ◽  
Fission Products ◽  
Radioactive Cesium ◽  
Radioactive Liquid Waste ◽  
Epr Spectrum ◽  
Paramagnetic Resonance ◽  
Γ Radiation ◽  
The Stability ◽  
High Level

ABSTRACTProgress on separating the long-lived fission products from the high level radioactive liquid waste (HLW) has led to the development of specific host matrices, notably for the immobilization of cesium. Hollandite (nominally BaAl2Ti6O16), one of the main phases constituting Synroc, receives renewed interest as specific Cs-host wasteform. The radioactive cesium isotopes consist of short-lived Cs and Cs of high activities and Cs with long lifetime, all decaying according to Cs+→Ba2++e- (β) + γ. Therefore, Cs-host forms must be both heat and (β,γ)-radiation resistant. The purpose of this study is to estimate the stability of single phase hollandite under external β and γ radiation, simulating the decay of Cs. A hollandite ceramic of simple composition (Ba1.16Al2.32Ti5.68O16) was essentially irradiated by 1 and 2.5 MeV electrons with different fluences to simulate the β particles emitted by cesium. The generation of point defects was then followed by Electron Paramagnetic Resonance (EPR). All these electron irradiations generated defects of the same nature (oxygen centers and Ti3+ ions) but in different proportions varying with electron energy and fluence. The annealing of irradiated samples lead to the disappearance of the latter defects but gave rise to two other types of defects (aggregates of light elements and titanyl ions). It is necessary to heat at relatively high temperature (T=800°C) to recover an EPR spectrum similar to that of the pristine material. The stability of hollandite phase under radioactive cesium irradiation during the waste storage is discussed.

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