Radiation measurements
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DNA originating from degenerate tumour cells can be detected in the circulation in many tumour types, where it can be used as a marker of disease burden as well as to monitor treatment response. Although circulating tumour DNA (ctDNA) measurement has prognostic/predictive value in metastatic prostate cancer, its utility in localised disease is unknown.
11p vibransone 28-03-2024 2 2 Download
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In this study, we utilized quantitative measurements of the apparent diffusion coefficient (ADC) before and after treatment to predict the response to nCRT in patients with rectal cancer.
8p vilarry 12-03-2024 2 2 Download
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In ebook "Mössbauer spectroscopy and transition metal chemistry: Fundamentals and applications" the first part details the fundamentals of Mössbauer spectroscopy and is based on a book published in 1978 in the Springer series 'Inorganic Chemistry Concepts' by P. Gütlich, R. Link and A.X. Trautwein. The second part covers useful practical aspects of measurements, and the application of the techniques to many problems of materials characterization.
581p manmanthanhla0201 26-02-2024 1 1 Download
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Ebook "Radiometry in modern scientific experiments" is provided with information about methods of calibration of light sources and photodetectors as well as responsiveness of spectral instruments ranging from near infrared to vacuum UV spectral, 1200 – 100 nm, and radiation intensities of up to several quanta per second in absolute and arbitrary units. The author describes for the first time original methods of measurements they created and draws upon over 40 years of experience in working with light sources and detectors to provide accurate and precise measurements.
211p manmanthanhla0201 26-02-2024 1 1 Download
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Part 2 book "Introduction to health physics" includes content: Health physics instrumentation; external radiation safety; internal radiation safety; criticality; evaluation of radiation safety measures; nonionizing radiation safety.
447p muasambanhan07 18-02-2024 0 0 Download
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Part 2 book "The essential physics of medical imaging" includes content: Radioactivity and nuclear transformation; radionuclide production, radiopharmaceuticals, and internal dosimetry; radiation detection and measurement; nuclear imaging - the scintillation camera; nuclear imaging - emission tomography;.... and other contents.
455p oursky09 08-11-2023 5 2 Download
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Ebook "Principles of colloid and surface chemistry" aims to familiarize students with the fundamentals of colloid and surface science, from various types of colloids and colloidal phenomena, and classical and modern characterization/measurement techniques to applications of colloids and surface science in engineering, technology, chemistry, physics and biological and medical sciences.
703p loivantrinh 29-10-2023 6 3 Download
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Part 1 book "Diagnostic radiology physics - A handbook for teachers and students" includes content: Fundamentals of atomic and nuclear physics, interactions of radiation with matter, fundamentals of dosimetry, measures of image quality, X ray production, projection radiography, receptors for projection radiography, fluoroscopic imaging systems, mammography, special topics in radiography, computed tomography, physics of ultrasound, ultrasound imaging.
359p oursky07 23-10-2023 6 1 Download
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Continued part 1, part 2 of ebook "Physics of oscillations and waves: With use of Matlab and Python" provides readers with contents including: Chapter 10 - Reflection, transmission and polarization; Chapter 11 - Measurements of light, dispersion, colours; Chapter 12 - Geometric optics; Chapter 13 - Interference diffraction; Chapter 14 - Wavelet transform; Chapter 15 - Coherence, dipole radiation and laser; Chapter 16 - Skin depth and waveguides;...
280p dangsovu 20-10-2023 8 5 Download
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This study develops an online unmanned UAV path-planning strategy for autonomous search and localisation of RF emitter. The UAV is equipped with Receiver Signal Strength (RSS) sensors to localise stationary radio frequency (RF) emitter. A high-fidelity non-linear measurement model of RF propagation in an urban environment is adopted for this purpose. The measurement model of the likelihood function is considered a Gaussian mixture.
105p runthenight04 02-02-2023 1 1 Download
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The primary aims of this thesis are: A) to measure the dependence of the DAPR20,10 on the size of the primary small photon field, and to relate this data to TPR20,10 of the reference field. B) to develop a method of using a large-area ionization chamber to compare the measured dosearea product to that calculated by a treatment planning system. C) To gain further understanding of the dose-area product by supplementing the results with 2D high resolution film dosimetry.
149p runthenight04 02-02-2023 4 2 Download
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Environmental radiation monitoring stations using the NaI(Tl) scintillation detector have higher sensitivity and provide more accurate radiation dose values than using Geiger-Muller counters. However, when the temperature of the environment changes, the measuring data changes (due to the temperature dependence on the NaI(Tl) light yield and the quantum efficiency of the PMT).
10p vicedric 08-02-2023 5 3 Download
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Radon is a natural source of radiation that contributes approximately 50 % to the public dose. Therefore, it is very important to assess and minimize the impact of radon on human health. In this study, we determined radon concentrations in groundwater samples in Phu Hoi Commune, Ductrong District, Lamdong Province by using the liquid scintillation counter of ALOKA LSC 6100.
5p vicedric 08-02-2023 5 1 Download
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The purpose of the paper is to research and create LiAlO2 powder applied in measuring photon and neutron dosimetry. In this work, we developed of process for the synthesis of lithium aluminate powder using sol-gel method. The key steps involved in the synthesis of powders were: (1) preparation a sol from lithium and aluminum nitrate as starting materials; (2) formation of gel powders and (3) calcination of gel powders to the oxide powders.
8p vicedric 08-02-2023 3 3 Download
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The result shows that there is a drift of high dose values to the left of all of three X-ray dose graphs in the different distances from X-ray tube. Furthermore, the information of X-ray dose distribution is very useful to locate the position and appropriate dose on the plate.
9p visnape 30-01-2023 6 4 Download
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Thermocouples are one of the most widespread used sensors for temperature measurements in several applications, thanks to their robustness, low cost and ease of installation. However, when used in high temperature environments or in the presence of flames or elevated hot sources, the measurement can be affected, for example, by radiative exchanges to and from the ambient.
9p vironald 15-12-2022 12 3 Download
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E′ and Al-hole centres are some of the most common and abundant paramagnetic defects in sedimentary quartz. Here we investigate the dose dependence of these defects before and after exposure to light by electron spin resonance (ESR).
6p vironald 15-12-2022 8 3 Download
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Authorities responding to nuclear security events have to be prepared for a situation in which a neutron source or nuclear material is out of regulatory control. In such a situation, handheld neutron detectors are used to search for neutron sources or nuclear material, during either an overt or a covert search.
7p vironald 15-12-2022 9 3 Download
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This paper summarizes the results of an intercomparison on the use of the ICRP Reference Computational Phantoms with radiation transport codes, which was organized by EURADOS working group 6. Three exercises are described: exposure to an anterior-posterior (AP) photon point source, exposure to an AP neutron point source, and exposure to two typical medical X-ray examinations.
16p vironald 15-12-2022 8 3 Download
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Deep learning has been utilized to trace nuclear reactions in the CR-39 nuclear track detector. Etch pit images on front and back surfaces of the CR-39 detector were obtained sequentially by moving the objective lens of a microscope, and merged to one image.
5p vironald 15-12-2022 8 3 Download