scholarly journals RADIATION EFFECTS IN INTEGRATED CHIPS WHEN EXPOSED TO IONIZING RADIATION

2021 ◽  
Author(s):  
I. Zhuravleva
Keyword(s):  
Ionizing Radiation ◽  
Radiation Effects ◽  
Absorbed Dose ◽  
Transient Processes ◽  
Electronic Products ◽  
Increased Sensitivity ◽  
Onboard Equipment

In the onboard equipment, components of electronics, which have increased sensitivity to the effects of ionizing radiation are widely used. The transient processes in electronic products are particularly dangerous, associated with an absorbed dose of radiation, leading to functional or irre-versible failures in the operation of onboard systems.

scholarly journals Development of the Information Storage Micromodule for Spacecrafts with LATCH-UP Effect Protection

2018 ◽  
Vol 7 (4.7) ◽  
pp. 184
Author(s):  
R. S. Litvinenko ◽  
I. V. Prokofiev
Keyword(s):  
Ionizing Radiation ◽  
Data Storage ◽  
Radiation Effects ◽  
Outer Space ◽  
Information Storage ◽  
High Radiation ◽  
Storage Devices ◽  
Information Safety ◽  
Technological Methods ◽  
Onboard Equipment

Exposure to outer space ionizing radiation places high demands on the circuits for fault tolerance. The issue of information safety on storage devices is especially acute in conditions of high radiation. Within the framework of the project on development of constructive and technological methods of creation of miniature data storage drives for onboard equipment for space purposes, the study of the radiation effects influence on the operation of memory chips and methods of counteracting these effects is carried out.  

Effect of ionizing radiation on the kinetics of hydrogenation on the Ni-MgO mixed catalyst

1982 ◽  
Vol 47 (7) ◽  
pp. 1780-1786 ◽  
Author(s):  
Rostislav Kudláček ◽  
Jan Lokoč
Keyword(s):  
Experimental Data ◽  
Activation Energy ◽  
Liquid Phase ◽  
Ionizing Radiation ◽  
Oxide Catalyst ◽  
Absorbed Dose ◽  
Hydrogenation Rate ◽  
Solution Composition ◽  
Mixed Catalyst ◽  
Kinetics Of

The effect of gamma pre-irradiation of the mixed nickel-magnesium oxide catalyst on the kinetics of hydrogenation of maleic acid in the liquid phase has been studied. The changes of the hydrogenation rate are compared with the changes of the adsorbed amount of the acid and with the changes of the solution composition, activation energy, and absorbed dose of the ionizing radiation. From this comparison and from the interpretation of the experimental data it can be deduced that two types of centers can be distinguished on the surface of the catalyst under study, namely the sorption centres for the acid and hydrogen and the reaction centres.

Using a Temperature-Switching Approach to Evaluate Low-Dose-Rate Ionizing Radiation Effects on SET in Linear Bipolar Circuits

2019 ◽  
Vol 66 (7) ◽  
pp. 1557-1565 ◽  
Author(s):  
Shuai Yao ◽  
Wu Lu ◽  
Xin Yu ◽  
Qi Guo ◽  
Chengfa He ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Dose Rate ◽  
Radiation Effects ◽  
Low Dose ◽  
Low Dose Rate

scholarly journals Ionizing radiation effects on food vitamins: a review

2009 ◽  
Vol 52 (5) ◽  
pp. 1267-1278 ◽  
Author(s):  
Ana Paula Dionísio ◽  
Renata Takassugui Gomes ◽  
Marília Oetterer
Keyword(s):  
Chemical Composition ◽  
Ionizing Radiation ◽  
Food Processing ◽  
Irradiation Dose ◽  
Radiation Effects ◽  
Nutritional Value ◽  
Food Composition ◽  
Industrial Processes ◽  
Cosmetic Products ◽  
Irradiation Process

Ionizing radiation has been widely used in industrial processes, especially in the sterilization of medicals, pharmaceuticals, cosmetic products, and in food processing. Similar to other techniques of food processing, irradiation can induce certain alterations that can modify both the chemical composition and the nutritional value of foods. These changes depend on the food composition, the irradiation dose and factors such as temperature and presence or absence of oxygen in the irradiating environment. The sensitivity of vitamins to radiation is unpredictable and food vitamin losses during the irradiation are often substantial. The aim of this study was to discuss retention or loss of vitamins in several food products submitted to an irradiation process.

scholarly journals Ionization Dosimetry Principles for Conventional and Laser-Driven Clinical Particle Beams

2018 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Ionizing Radiation ◽  
Heavy Particle ◽  
Absorbed Dose ◽  
High Energy ◽  
Particle Energy ◽  
Particle Accelerators ◽  
Carbon Ions ◽  
Particle Beams ◽  
Radiation Fields ◽  
Number Of Particles

In this paper after mentioning the clinical radiation fields of 20 keV-450 MeV/u, they are characterized by the number of particles and their energy. Particle energy is the quantity that determines radiation penetration at the depth at which the tumor is situated (Fig. 1). The number of particles (or beam intensity) is the second major quantity that assures the administration of the absorbed dose in the tumor. The first application shows the radiation levels planned for various radiation fields. Prior to interacting with the medium, the intensity (or energy fluence rate) allows the determination of energy density, energy, power and relativistic force. In the interaction process, it determines the absorbed dose, kerma and exposure. Non-ionizing radiations in the EM spectrum are used as negative energy waves to accelerate particles charged into special installations called particle accelerators. The particles extracted from the accelerator are the source of the corpuscular radiation for high-energy radiotherapy. Of these, light particle beams (electrons and photons) for radiotherapy are generated by betatron, linac, microtron, and synchrotron and heavy particle beams (protons and heavy ions) are generated by cyclotron, isochronous cyclotron, synchro-cyclotron and synchrotron. The ionization dosimetry method used is the ionization chamber for both indirectly ionizing radiation (photons and neutrons) and for directly ionizing radiation (electrons, protons and carbon ions). Because the necessary energies for hadrons therapy are relatively high, 50-250 MeV for protons and 100-450 MeV/u for carbon ions, the alternative to replace non-ionizing radiation with relativistic laser radiation for generating clinical corpuscular radiation through radiation pressure acceleration mechanism (RPA) is presented.

scholarly journals BRAIN AND EYE AS POTENTIAL TARGETS FOR IONIZING RADIATION IMPACT. Part І. THE CONSEQUENCES OF IRRADIATION OF THE PARTICIPANTS OF THE LIQUIDATION OF THE CHORNOBYL ACCIDENT

2020 ◽  
Vol 25 ◽  
pp. 90-129
Author(s):  
K. Loganovsky ◽  
◽  
P. Fedirko ◽  
K. Kuts ◽  
D. Marazziti ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Neurodegenerative Diseases ◽  
Nuclear Power ◽  
Radiation Effects ◽  
Radiation Risk ◽  
International Studies ◽  
Neurocognitive Deficit ◽  
Radiation Induced ◽  
And Performance ◽  
Medical Radiology

Background.Exposure to ionizing radiation could affect the brain and eyes leading to cognitive and vision impairment, behavior disorders and performance decrement during professional irradiation at medical radiology, including interventional radiological procedures, long-term space flights, and radiation accidents. Objective. The objective was to analyze the current experimental, epidemiological, and clinical data on the radiation cerebro-ophthalmic effects. Materials and methods. In our analytical review peer-reviewed publications via the bibliographic and scientometric bases PubMed / MEDLINE, Scopus, Web of Science, and selected papers from the library catalog of NRCRM – the leading institution in the field of studying the medical effects of ionizing radiation – were used. Results. The probable radiation-induced cerebro-ophthalmic effects in human adults comprise radiation cataracts, radiation glaucoma, radiation-induced optic neuropathy, retinopathies, angiopathies as well as specific neurocognitive deficit in the various neuropsychiatric pathology including cerebrovascular pathology and neurodegenerative diseases. Specific attention is paid to the likely stochastic nature of many of those effects. Those prenatally and in childhood exposed are a particular target group with a higher risk for possible radiation effects and neurodegenerative diseases. Conclusions. The experimental, clinical, epidemiological, anatomical and pathophysiological rationale for visual system and central nervous system (CNS) radiosensitivity is given. The necessity for further international studies with adequate dosimetric support and the follow-up medical and biophysical monitoring of high radiation risk cohorts is justified. The first part of the study currently being published presents the results of the study of the effects of irradiation in the participants of emergency works at the Chornobyl Nuclear Power Plant (ChNPP). Key words: ionizing radiation, cerebroophthalmic effects, neurocognitive deficit, radiation accident, radiation cataracts, macular degeneration.

scholarly journals Effects of ion beams on flash memory cells

2014 ◽  
Vol 29 (2) ◽  
pp. 116-122 ◽  
Author(s):  
Marija Obrenovic ◽  
Djordje Lazarevic ◽  
Edin Dolicanin ◽  
Milos Vujisic
Keyword(s):  
Solar Cells ◽  
Ionizing Radiation ◽  
Flash Memory ◽  
Management System ◽  
Radiation Effects ◽  
Ion Beams ◽  
Space Flights ◽  
Physico Chemical ◽  
High Degree

This paper deals with the flash memory reliability in terms of the ionizing radiation effects. In fact, the reliability of flash memory depends on physico-chemical restrictions of electrostatic nature due to the effects of ionizing radiation. The presented results are actual as a high degree of integrated components miniaturization affects the memory sensitivity, while the role of memories in the solar cells management system for space flights is increasing, so that the effects of ionizing radiation may cause changes in the stored data or the physical destruction of the flash memory components.

404 Neurophysiological basis of ionizing radiation effects

1998 ◽  
Vol 30 (1-2) ◽  
pp. 156
Author(s):  
A.I. Nyagu ◽  
K.N. Loganovsky ◽  
T.K. Loganovskaja
Keyword(s):  
Ionizing Radiation ◽  
Radiation Effects ◽  
Neurophysiological Basis
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