Industrial diagnostics system using gamma radiation

Abstract During the operation of large industrial installations, a very important task is to maintain the proper technical state. In the event of an emergency, it is vital to locate the place of occurrence as soon as possible. In solving this type of problem, it often helps to apply the methods of measurement associated with ionizing radiation. One of these methods is the gamma scanning. The purpose of this type of measurement is the detection and localization of disturbance of technological processes which may result in incorrect decomposition the fl owing medium and workpiece (sediments, congestion) as well as damage to the internal constructions. A particularly: (i) preventive diagnosis - early detection of installation failure; (ii) rationalization of repairs and renovations - to determine the need to take or not to take remedial action; (iii) quick and precise installation inspections - to gain knowledge of the technical condition and technological installations; (iv) indication of worn parts and posing a threat - diagnostics of the technical condition installation; (v) forecasting the useful lifetime of equipment.

Download Full-text

New Aspects of Radiotherapy in Rheumatoid Arthritis Biomarker: Radio Sensitivity Response to Acute Ionizing Radiation Induces Cell Characteristic Reprogramming and Enhanced Cytokine Release of In Vitro Activated Macrophage Cell Line (RAW 264.7)

10.21203/rs.3.rs-710058/v1 ◽

2021 ◽

Author(s):

Zahra Bagheri-Hosseinabadi ◽

Jaber Zafari ◽

Fatemeh Javani Jouni ◽

Hossein Abbasinia ◽

Mitra Abbasifard

Keyword(s):

Rheumatoid Arthritis ◽

Radiation Therapy ◽

Ionizing Radiation ◽

Gamma Radiation ◽

Inflammatory Disease ◽

Raw 264.7 ◽

Macrophage Cell Line ◽

Macrophage Cell ◽

Apoptotic Genes

Abstract The response of biological systems to various types of radiations have many ambiguous dimensions. Among ionizing radiations, in vitro external gamma radiation therapy has mostly studied as model to declare the biological system challenges with radiation effects. Cell/organism exposure to gamma radiation, caused cascade of ionization events such as severe irreversible biological damages. However, the biological responses and oxidative stress related mechanisms under acute radiation conditions poorly understood in inflammatory systems. Following study tried to give a model about ionizing radiation effect on the macrophage that had a key role in inflammation mechanisms; to evaluate the impact of radiotherapy approach for inflammatory disease as rheumatoid arthritis. To this aim, Macrophage cell line (RAW 264.7) culture, exposed to different doses of gamma radiation (0,4, 6, 8, 10 Gy). Cell viability, apoptosis, cell cycle, migration; NO and PGE2 production; expression of pro-inflammatory and apoptotic genes and cytokine secretion of macrophages was also evaluated.The results showed that gamma treatment, at 4 Gy radiation, have slight effect on macrophage characteristics and cytokine secretion pattern. Versus, higher doses (8 and 10 Gy) increased DNA damage, expression of apoptotic genes and secretion of NO and PGE2 cytokines. 6 Gy radiation, the maximum radiation dose, show moderate nondestructive effects and inflammation process modulation. In this study, doses higher than 6 Gy of Gamma radiation caused cell mortality. It seems that 6 Gy Gamma radiation modulate the inflammatory cascade caused by macrophage cell, as a central core of autoimmune inflammatory disease in acute dose radiation therapy.

Download Full-text

Early detection and localization of stator inter-turn faults based on discrete wavelet energy ratio and neural networks in induction motor

Energy ◽

10.1016/j.energy.2020.118684 ◽

2020 ◽

Vol 212 ◽

pp. 118684

Author(s):

Hakima Cherif ◽

Abdelhamid Benakcha ◽

Ismail Laib ◽

Seif Eddine Chehaidia ◽

Arezky Menacer ◽

...

Keyword(s):

Neural Networks ◽

Early Detection ◽

Induction Motor ◽

Energy Ratio ◽

Discrete Wavelet ◽

Wavelet Energy ◽

Detection And Localization

Download Full-text

RESEARCH INTO THE INFLUENCE OF IONIZING RADIATION ON STORAGE OF VEGETABLES

Chemical Problems ◽

10.32737/2221-8688-2021-2-120-128 ◽

2021 ◽

Vol 19 (2) ◽

pp. 120-128

Author(s):

Kh.F. Mammadov ◽

◽

Z.Z. Khalilov ◽

S.M. Aliyev ◽

H.N. Shiraliyeva ◽

...

Keyword(s):

Ionizing Radiation ◽

Gamma Radiation ◽

Shelf Life ◽

Organoleptic Properties ◽

Vegetable Samples ◽

Absorbed Doses

The effect of ionizing radiation on the organoleptic properties and shelf life of some vegetables (potatoes, onions, carrots and beets, tomatoes and sweet peppers) has been studied. Samples of vegetables were packed in special polymer dishes, and for the purpose of dosimetry, 3 ampoules containing 5 ml of purified benzene were placed next to the samples in each dish. Also, vegetable samples and ampoules were irradiated with doses of 0.5 kGy, 1.0 kGy, 3.0 kGy and 5.0 kGy of ionizing gamma radiation from 60Co sources of the sterilization installation on May 19, 2021. The surface and organoleptic properties of irradiated samples of vegetables placed in a dry, ventilated room, were periodically explored. After a while, deterioration of the organoleptic properties of some samples was recorded, and these samples with spoiled consumer properties were selected and removed from the room. The quantity of potatoes and onions with spoiled consumer properties from May 18, 2021 to August 15, 2021 among unirradiated samples and irradiated with absorbed doses of 3.0 and 5.0 kGy was approximately 30-40%. However, in contrast to the irradiated samples, a gradual germination of non-irradiated, unspoiled samples of potatoes and onion (kept under the same conditions as the irradiated samples) was observed in the reviewed period. Until August 15, 2021, no changes in the appearance and organoleptic properties of potato and onion samples irradiated with doses of 0.5 and 1.0 kGy were detected. It found that to prevent germination and to increase the shelf life of potatoes and onions, their irradiation with doses of 0.5 and 1.0 kGy was required; for a 2-3 fold rise in the shelf life of other types of vegetables, irradiation with absorbed doses of no more than 0.5 kGy is required

Download Full-text

Early detection and localization of viral haemorrhagic septicemia virus (VHSV) genomic mRNAs in external tissues of juvenile olive flounder (Paralichthys olivaceus) following an immersion challenge

Aquaculture ◽

10.1016/j.aquaculture.2019.734859 ◽

2020 ◽

Vol 518 ◽

pp. 734859 ◽

Cited By ~ 1

Author(s):

Syed Shariq Nazir Qadiri ◽

Soo-Jin Kim ◽

Rahul Krishnan ◽

Sajal Kole ◽

Myung-Joo Oh

Keyword(s):

Early Detection ◽

Paralichthys Olivaceus ◽

Olive Flounder ◽

Detection And Localization ◽

Olive Flounder Paralichthys Olivaceus

Download Full-text

SIMPLE NON-INVASIVE EARLY DETECTION AND LOCALIZATION OF SPECIFIC CANCER TISSUES OF INTERNAL ORGANS AND DIFFERENTIATION OF CANCER TISSUE FROM SURROUNDING AREAS INFECTED BY CANCER RELATED VIRUSES, AS WELL AS EVALUATION OF THEIR MICRO-CIRCULATORY CONDITION & DRUG UPTAKE USING THE BI-DIGITAL O-RING TEST

Acupuncture & Electro-Therapeutics Research ◽

10.3727/036012990816358135 ◽

1990 ◽

Vol 15 (3) ◽

pp. 217-233

Author(s):

Yoshiaki Omura

Keyword(s):

Early Detection ◽

Drug Uptake ◽

Ring Test ◽

Cancer Tissue ◽

Internal Organs ◽

Non Invasive ◽

Specific Cancer ◽

Surrounding Areas ◽

Cancer Tissues ◽

Detection And Localization

Download Full-text

Reconstruction of EIT Images Using Fish School Search and Non-Blind Search

International Journal of Biomedical and Clinical Engineering ◽

10.4018/ijbce.2021010107 ◽

2021 ◽

Vol 10 (1) ◽

pp. 89-103

Author(s):

Valter Augusto de Freitas Barbosa ◽

David Edson Ribeiro ◽

Clarisse Lins de Lima ◽

Maíra Araújo de Santana ◽

Ricardo Emmanuel de Souza ◽

...

Keyword(s):

Breast Cancer ◽

Early Detection ◽

Ionizing Radiation ◽

Reconstruction Algorithm ◽

Breast Cancer Diagnosis ◽

Element Mesh ◽

Impedance Tomography ◽

Fish School ◽

Reconstruction Methods ◽

Blind Search

Breast cancer is the most common type of cancer among women, affecting 2.1 million women per year worldwide. The best strategy for decreasing disease morbidity and mortality is early detection. Mammography is the most used exam for the diagnosis of breast cancer. However, this technique uses ionizing radiation and causes discomfort to the patient. One promising technique that can be used for early detection of breast cancer is electrical impedance tomography (EIT), which is an imaging technique free of ionizing radiation. Yet, its images still have low resolution, making it difficult to use in breast cancer diagnosis. Thus, the development of new reconstruction methods aiming better resolution is necessary. This work evaluates the performance of the reconstruction algorithm based on fish school search with non-blind search in a 3,190 finite element mesh.

Download Full-text

SOFTWARE AT MOBILE SPECTROMETER WITH CZT-DETECTOR

Applied Aspects of Information Technology ◽

10.15276/aait.01.2021.9 ◽

2021 ◽

Vol 4 (1) ◽

pp. 100-110

Author(s):

Oleh V. Maslov ◽

Volodymyr V. Osadchyy

Keyword(s):

Ionizing Radiation ◽

Gamma Radiation ◽

Power Supply ◽

Gamma Ray ◽

Low Voltage ◽

Energy Calibration ◽

Semiconductor Detectors ◽

Detector Module ◽

Gamma Ray Spectrometer ◽

Multichannel Analyzer

The technology is based on a semiconductor CdZnTe-portable (almost the size of a mobile phone) gamma-ray spectrometer with high resolution, which provides high efficiency of rapid identification of radionuclides and assessment of radiation dose from low to moderately high levels. The CdZnTe gamma-ray spectrometer is a highly efficient device based on the use of CdZnTe (CZT) semiconductor detectors operating at room temperature with very low power consumption, a digital multichannel analyzer, and a microcomputer. CdZnTe-portable spectrometer is a self-contained device and consists of three modules - a detector module, a multichannel analyzer, and a microcomputer. The detector module contains a high-quality CdZnTe detector, a preamplifier, and a high voltage power supply for the detector. There are detector modules with different volumes of the CZT detector from 5 mm3 to 1600 mm3. It is possible to use a multi-detector system. The analyzer module contains an amplifier, a digital signal processor, a low voltage power supply, and a computer interface. The microcomputer software interacts with the multichannel analyzer, analyzes gamma spectra, and provides the accumulation of time profiles of the dose of gamma radiation, communication with other information systems. Spectrometric measurements in real-time make it possible to use "electronic collimation" technologies to build a map of the radiation field and localize sources of ionizing radiation, with the subsequent certification of identified sources, creation of an effective radiation monitoring system with the functions of certification of ionizing sources radiation. The corresponding software allows you to solve the following tasks – building a three-dimensional map of the fields of ionizing radiation of various degrees of spatial detailing, taking into account the radiation energy, localization, and certification of gamma radiation sources. The special laboratory kit is based on μSPEC microspectrometers. A LattePanda single board computer is used to control the operation of spectrometers, collect and analyze data. LattePanda – A Windows 10 Computer with integrated Arduino. This explains the choice of LattePanda. Windows 10 application allows you to use the WinSPEC software to control the multichannel analyzer operation supplied with the spectrometer. The built-in Arduino allows you to remote control the movement of the radiation source during laboratory experiment. Both the traditional problems of calibrating spectrometers (energy calibration and efficiency curves), including those for various source geometries, processing the measured spectra using standard programs, calculating the activity of sources, and the problem of creating a spectra processing program and a spectrometer control program are considered. The values of the minimum detectable activity are given.

Download Full-text

PROPAGATION OF MANGO SEEDLINGS OF THE CULTIVAR “TOMMY” BY GRAFTS IRRADIATED

Brazilian Journal of Radiation Sciences ◽

10.15392/bjrs.v9i1a.1449 ◽

2021 ◽

Vol 9 (1A) ◽

Author(s):

Valter Arthur

Keyword(s):

Ionizing Radiation ◽

Gamma Radiation ◽

Nuclear Energy ◽

Lethal Dose ◽

Tukey Test ◽

Different Doses

Due to difficulties of vegetative propagating of any pants, many tests were performed with ionizing radiation aiming the modification of the characteristics of the plants for obtaining of the improved genotypes and of smaller size. Rootstock “Espada” cultivar, were used to obtain mango seedlings of “Tommy” cultivar. The cuttings were irradiated with different doses of gamma radiation: 0 (control), 2.5, 5.0, 7.5 and 10.0 Gy, in a source of Cobalt-60 type Gammacell-220, installed in the Center for Nuclear Energy in Agriculture, CENA-USP. After irradiation, was performed the grafting type cleft graft. Was made the first evaluation of height of the plants from the budding grafting after 24 months. Data were subjected by statistic program (SAS) and the means were compared by Tukey test (p <0.05). From the results obtained can be concluded that the doses of 2.5 Gy stimulated growth of the plants and the lethal dose was 10.0 Gy because don’t have development of plants.

Download Full-text

Gamma Radiation-Induced Damage in the Zinc Finger of the Transcription Factor IIIA

Bioinorganic Chemistry and Applications ◽

10.1155/2016/1642064 ◽

2016 ◽

Vol 2016 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

XiaoHong Zhang ◽

YuJi Miao ◽

XiaoDan Hu ◽

Rui Min ◽

PeiDang Liu ◽

...

Keyword(s):

Transcription Factor ◽

Ionizing Radiation ◽

Gamma Radiation ◽

Zinc Finger ◽

Cysteine Residues ◽

Zinc Finger Motif ◽

Thiol Groups ◽

Transcription Factor Iiia ◽

Zinc Finger Motifs ◽

Radiation Induced

A zinc finger motif is an element of proteins that can specifically recognize and bind to DNA. Because they contain multiple cysteine residues, zinc finger motifs possess redox properties. Ionizing radiation generates a variety of free radicals in organisms. Zinc finger motifs, therefore, may be a target of ionizing radiation. The effect of gamma radiation on the zinc finger motifs in transcription factor IIIA (TFIIIA), a zinc finger protein, was investigated. TFIIIA was exposed to different gamma doses from 60Co sources. The dose rates were 0.20 Gy/min and 800 Gy/h, respectively. The binding capacity of zinc finger motifs in TFIIIA was determined using an electrophoretic mobility shift assay. We found that 1000 Gy of gamma radiation impaired the function of the zinc finger motifs in TFIIIA. The sites of radiation-induced damage in the zinc finger were the thiol groups of cysteine residues and zinc (II) ions. The thiol groups were oxidized to form disulfide bonds and the zinc (II) ions were indicated to be reduced to zinc atoms. These results indicate that the zinc finger motif is a target domain for gamma radiation, which may decrease 5S rRNA expression via impairment of the zinc finger motifs in TFIIIA.

Download Full-text