DEVELOPMENT OF SILICON DIFFUSION n-p-DETECTORS OF IONIZING RADIATION

2019 ◽  
Vol 6 (3) ◽  
pp. 112-115
Author(s):  
Sali Ashirovich Radzhapov ◽  
Rustam Khakimovich Rakhimov ◽  
Begjan Salievich Radzhapov ◽  
Mars Achmedovich Zufarov ◽  
Kutbiddin Ilovitddinovich Vakhobov
Keyword(s):  
Ionizing Radiation ◽  
Charged Particles ◽  
Research Data ◽  
Manufacturing Technology ◽  
Silicon Diffusion

The paper presents an optimized manufacturing technology of silicon diffusion n-p detectors, as well as some research data on the spectrometric characteristics of silicon diffusion detectors of charged particles.

RADIATION, ITS PRIMARY INTERACTIONS

1960 ◽  
Vol 38 (1) ◽  
pp. 312-320 ◽  
Author(s):  
G. F. Whitmore
Keyword(s):  
Ionizing Radiation ◽  
Oxygen Tension ◽  
Biological Systems ◽  
Charged Particles ◽  
Biological Materials ◽  
Radiation Chemistry ◽  
Biological Damage ◽  
Current Thinking

A discussion is presented of some current thinking on the primary interactions of ionizing radiation with biological materials, including a brief discussion of ionization, excitation, the track phenomenon of charged particles, and the radiation chemistry of water. An attempt is made to correlate some of these phenomena with the variations in biological damage produced by various types of radiations incident on various biological systems and under varying conditions of oxygen tension.

RADIATION, ITS PRIMARY INTERACTIONS

1960 ◽  
Vol 38 (3) ◽  
pp. 312-320 ◽  
Author(s):  
G. F. Whitmore
Keyword(s):  
Ionizing Radiation ◽  
Oxygen Tension ◽  
Biological Systems ◽  
Charged Particles ◽  
Biological Materials ◽  
Radiation Chemistry ◽  
Biological Damage ◽  
Current Thinking

A discussion is presented of some current thinking on the primary interactions of ionizing radiation with biological materials, including a brief discussion of ionization, excitation, the track phenomenon of charged particles, and the radiation chemistry of water. An attempt is made to correlate some of these phenomena with the variations in biological damage produced by various types of radiations incident on various biological systems and under varying conditions of oxygen tension.

scholarly journals Genomic Instability and Carcinogenesis of Heavy Charged Particles Radiation: Clinical and Environmental Implications

Medicina ◽  
2019 ◽  
Vol 55 (9) ◽  
pp. 591 ◽  
Author(s):  
Mortezaee ◽  
Najafi ◽  
Farhood ◽  
Ahmadi ◽  
Shabeeb ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Genomic Instability ◽  
Charged Particles ◽  
Radiation Energy ◽  
X Rays ◽  
Environmental Implications ◽  
Heavy Charged Particles ◽  
Potent Inducer ◽  
Methylation Of Dna ◽  
Carcinogenic Agents

One of the uses of ionizing radiation is in cancer treatment. The use of heavy charged particles for treatment has been introduced in recent decades because of their priority for deposition of radiation energy in the tumor, via the Bragg peak phenomenon. In addition to medical implications, exposure to heavy charged particles is a crucial issue for environmental and space radiobiology. Ionizing radiation is one of the most powerful clastogenic and carcinogenic agents. Studies have shown that although both low and high linear energy transfer (LET) radiations are carcinogenic, their risks are different. Molecular studies have also shown that although heavy charged particles mainly induce DNA damage directly, they may be more potent inducer of endogenous generation of free radicals compared to the low LET gamma or X-rays. It seems that the severity of genotoxicity for non-irradiated bystander cells is potentiated as the quality of radiation increases. However, this is not true in all situations. Evidence suggests the involvement of some mechanisms such as upregulation of pro-oxidant enzymes and change in the methylation of DNA in the development of genomic instability and carcinogenesis. This review aimed to report important issues for genotoxicity of carcinogenic effects of heavy charged particles. Furthermore, we tried to explain some mechanisms that may be involved in cancer development following exposure to heavy charged particles.

Principles of radiation therapy

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Janusz Winiecki
Keyword(s):  
Radiation Therapy ◽  
Ionizing Radiation ◽  
Charged Particles ◽  
Living Matter ◽  
Oncological Treatment ◽  
Neutral Particles ◽  
The World ◽  
The Difference ◽  
Electrically Charged ◽  
Physical Quantities

AbstractIntroductionRadiotherapy is one of the basic methods of cancer treatment. Tens of millions of people around the world are exposed to ionizing radiation each year in the hope that it will help fight the disease or slow down its progress. Radiotherapy owes its success mainly to important discoveries in the field of physics, which allowed to understand the essence of the interaction of ionizing radiation with matter, in particular living matter.MaterialsThe following study explains which types of radiation have the ability to ionize matter. The difference between the interaction of electrically charged particles and neutral particles was explained. The author briefly described methods of delivering radiation to diseased tissues and how adjacent tissues are protected. The most important physical quantities describing the quality and dose of the delivered radiation were introduced.ConclusionsSafe use of radiotherapy as one of the methods of oncological treatment requires proficient knowledge of the basics of radiobiology and the physics of nuclear interactions. The study describes the most important steps in the preparation and implementation of radiotherapy, but it is not sufficient to fully understand this method. However, it provides an opportunity to be familiar with the issue in general.

SILICON-LITHIUM ΔE-DETECTORS OF ALPHA-RADIATION TO THE RADIOMETER

2019 ◽  
Vol 6 (2) ◽  
pp. 157-159
Author(s):  
Sali Ashirovich Radzhapov ◽  
Rustam Khakimovich Rakhimov ◽  
Begjan Salievich Radzhapov ◽  
Mars Achmedovich Zufarov
Keyword(s):  
Research Data ◽  
Manufacturing Technology ◽  
Alpha Radiation ◽  
Large Size ◽  
Radiometric Characteristics

The paper presents the optimization of the manufacturing technology of silicon-lithium Δ Ε -detectors of large size, as well as some research data on the radiometric characteristics of silicon-lithium Δ Ε -detectors with a diameter of 4-8 cm and a radiometer based on them.

scholarly journals DEVELOPMENT OF MEANS FOR MONITORING THE PARAMETERS OF MICROCHIPS FOR ASSESSING RADIATION RESISTANCE

2021 ◽  
Author(s):  
Konstantin Zolnikov ◽  
I. Strukov ◽  
K. Chubur ◽  
Sergey Grechanyy ◽  
A. Yagodkin ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Radiation Resistance ◽  
Experimental Evaluation ◽  
Measuring Equipment ◽  
Outer Space ◽  
Charged Particles ◽  
Heavy Charged Particles

This article discusses the technical means of monitoring the performance of a special-purpose ECB for experimental evaluation of radiation resistance, in the absence of test measuring equipment that allows you to control the areas of the most degraded degradation when exposed to ionizing radiation and heavy charged particles of outer space.

The results of the study Bouctouche processor series 1867

10.12737/4053 ◽  
2014 ◽  
Vol 6 (4) ◽  
pp. 72-74
Author(s):  
Ачкасов ◽  
A. Achkasov ◽  
Конарев ◽  
M. Konarev ◽  
Яньков ◽  
...  
Keyword(s):  
Charged Particles ◽  
Manufacturing Technology ◽  
Heavy Charged Particles ◽  
Latch Up

Resistance is Investigated microprocessor series 1867. The results show that manufacturing technology and applied circuit solutions in process of designing chips VT mode marinovannogo of RAM is entirely eliminate the occurrence of single failures and latch-up when exposed to heavy charged particles.

The Jovian ring

1984 ◽  
Vol 75 ◽  
pp. 203-209
Author(s):  
Joseph A. Burns
Keyword(s):  
Equatorial Plane ◽  
Charged Particles ◽  
Dynamical Evolution ◽  
Main Band ◽  
Small Grains ◽  
Three Components

ABSTRACTLying in Jupiter's equatorial plane is a diaphanous ring having little substructure within its three components (main band, faint disk, and halo). Micron-sized grains account for much of the visible ring, but particles of centimeter sizes and larger must also be present to absorb charged particles. Since dynamical evolution times and survival life times are quite short (≲102-3yr) for small grains, the Jovian ring is being continually replenished; probably most of the visible ring is generated by micrometeoroids colliding into unseen parent bodies that reside in the main band.

Atomic orientation effects in proton stopping at low velocity

1983 ◽  
Vol 41 ◽  
pp. 708-709
Author(s):  
Kin Lam
Keyword(s):  
Polycrystalline Material ◽  
Charged Particles ◽  
Target Material ◽  
Stopping Power ◽  
Low Velocity ◽  
Electronic Density ◽  
Interatomic Distances ◽  
Frame Work ◽  
Image Position ◽  
Atomic Orientation

The energy of moving ions in solid is dependent on the electronic density as well as the atomic structural properties of the target material. These factors contribute to the observable effects in polycrystalline material using the scanning ion microscope. Here we outline a method to investigate the dependence of low velocity proton stopping on interatomic distances and orientations.The interaction of charged particles with atoms in the frame work of the Fermi gas model was proposed by Lindhard. For a system of atoms, the electronic Lindhard stopping power can be generalized to the formwhere the stopping power function is defined as

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