標(biāo)題: Titlebook: Basic Radiotherapy Physics and Biology; David S. Chang,Foster D. Lasley,Joseph R. Dynlacht Book 2021Latest edition Springer Nature Switzer [打印本頁] 作者: 照相機(jī) 時間: 2025-3-21 17:21
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作者: Exhilarate 時間: 2025-3-21 20:30 作者: Parallel 時間: 2025-3-22 01:32
Production and Properties of Radiationadiation. Particles are directly ionizing while electromagnetic radiation is indirectly ionizing because it sets other particles in motion to deposit the dose. The majority of innovation in radiation therapy has focused on electromagnetic radiation, beginning with X-ray tubes and γ-rays emitted from作者: BET 時間: 2025-3-22 04:36 作者: 換話題 時間: 2025-3-22 09:55
Interactions of Particulate Radiation with Matterrpose of describing particle radiotherapy. Particles can be described as charged or uncharged and heavy or light. Charged particles are usually directly ionizing by acting through coulombic forces while uncharged particles are indirectly ionizing, often causing ionization as a secondary consequence 作者: 啪心兒跳動 時間: 2025-3-22 15:05 作者: MURKY 時間: 2025-3-22 20:04 作者: 構(gòu)想 時間: 2025-3-23 00:24
Dosimetry of Photon Beams in Waterapter provide several methods for calculating monitor units, depending on treatment setup variables such as source-to-surface (skin) distance/source-to-axis distance (SSD/SAD), field size, depth, wedges, and other factors. SSD setups are calculated using percent depth dose (PDD)-based formulae, whil作者: Arbitrary 時間: 2025-3-23 02:32
Dosimetry of Photon Beams in a Patientions in shape and density. These dose correction techniques range from very simple rules to complex computer algorithms. Wedges and compensators may be used to correct for patient surface shape. Bolus may be used to increase the surface dose. Field-matching techniques may be used for treatments with作者: GUILE 時間: 2025-3-23 06:31
Dosimetry of Electron Beamsons. Surface dose increases with energy, unlike photons. Simple dose calculations are based on electron dose to water, using source-to-surface distance (SSD) setup geometry. Density inhomogeneities greatly alter electron dose distributions. Electrons take the path of least resistance, increasing the作者: TRACE 時間: 2025-3-23 13:24 作者: Alveoli 時間: 2025-3-23 17:05 作者: pancreas 時間: 2025-3-23 21:19
Linac Quality Assurancediation oncology practices. Machine characteristics are measured on a daily, monthly, and annual basis and compared to tolerance levels (unacceptable in the long term) and action levels (unacceptable at any time). Different devices are used to measure these QA checks. Daily checks can use less preci作者: 使熄滅 時間: 2025-3-23 23:03
Radiation Protection and Safetys aspects of radiation protection including the International Commission on Radiological Protection (ICRP), National Council on Radiation Protection and Measurements (NCRP), Nuclear Regulatory Commission (NRC), state governments, the food and drug adminstration (FDA), and the US department of transp作者: Decline 時間: 2025-3-24 06:16 作者: Dysarthria 時間: 2025-3-24 08:59 作者: euphoria 時間: 2025-3-24 12:46 作者: Anterior 時間: 2025-3-24 18:16 作者: 偽證 時間: 2025-3-24 22:25
Radioactive Decaylides can reach various states of equilibriums including transient equilibrium and secular equilibrium. Some radionuclides can be found in nature while others can be created through particle bombardment or nuclear fission.作者: overhaul 時間: 2025-3-25 01:17
d in vivo, and stochastic and deterministic late effects. .Basic Radiotherapy Physics and Biology. is a valuable reference for radiation oncologists, medical professionals in the field, residents, and all students interested in radiation oncology..978-3-030-61898-8978-3-030-61899-5作者: 險代理人 時間: 2025-3-25 06:44
Hierarchies in Distributed Decision Makinglides can reach various states of equilibriums including transient equilibrium and secular equilibrium. Some radionuclides can be found in nature while others can be created through particle bombardment or nuclear fission.作者: 勉勵 時間: 2025-3-25 09:02 作者: 狼群 時間: 2025-3-25 14:24 作者: LAY 時間: 2025-3-25 17:38
Atomic and Nuclear Structureinite energy shells with fixed binding energies. Any transition of an electron into a higher energy shell requires energy absorption (often in the form of a photon), and any transition of an electron into a lower energy shell will result in energy release, either in the form of a characteristic X-ray or in the form of an Auger electron.作者: 煩擾 時間: 2025-3-25 23:41 作者: 觀點 時間: 2025-3-26 00:14 作者: panorama 時間: 2025-3-26 04:40
Book 2021Latest editionadiation oncology residents, and physicists. It presents topics that are included on the radiation therapy physics and biology board examinations and is designed with the intent of presenting information in an easily digestible format with maximum retention in mind. The inclusion of mnemonics, rules作者: Immunoglobulin 時間: 2025-3-26 10:37
n beam radiotherapy, chemomodulation and immunomodulation of.This book is a concise and well-illustrated review of the physics and biology of radiation therapy intended for radiation therapists, dosimetrists, radiation oncology residents, and physicists. It presents topics that are included on the r作者: jabber 時間: 2025-3-26 16:13
Single Fibre Microneurography and Sensationhe need for radiation safety and protection standards, dose is expressed in Sieverts for equivalent radiation dose and effective radiation dose. Radiation measurements are performed by various types of detectors.作者: 綁架 時間: 2025-3-26 16:53
Hughlings Jackson: The Man and His Timeo-axis distance (SSD/SAD), field size, depth, wedges, and other factors. SSD setups are calculated using percent depth dose (PDD)-based formulae, while SAD setups are calculated using tissue-air ratio/tissue-phantom ratio/tissue-maximum ratio (TAR/TPR/TMR)-based formulae.作者: 步履蹣跚 時間: 2025-3-26 22:01 作者: Goblet-Cells 時間: 2025-3-27 05:02
Hughlings Jackson’s Views on Consciousnessin the long term) and action levels (unacceptable at any time). Different devices are used to measure these QA checks. Daily checks can use less precise but less cumbersome instruments, while monthly and annual checks use more precise instruments.作者: SKIFF 時間: 2025-3-27 05:20
Modelle zur kurzfristigen Planung,l treatment planning systems including measurement-based systems, Monte Carlo, pencil beam, convolution/superposition, and collapsed cone algorithms. It is also important to understand the concept of simulated annealing for the purpose of intensity-modulated radiotherapy planning.作者: Commonwealth 時間: 2025-3-27 12:53
Modelle zur kurzfristigen Planung,ver, pancreas, kidney, and so on. The MRI signal is converted to a pseudo-CT called synthetic CT for planning and dose calculation. Using a fast MLC on a linac, this device provides on-line image verification and IMRT/VMAT treatment.作者: ARCH 時間: 2025-3-27 15:23
Quantification and Measurement of Dosehe need for radiation safety and protection standards, dose is expressed in Sieverts for equivalent radiation dose and effective radiation dose. Radiation measurements are performed by various types of detectors.作者: cancer 時間: 2025-3-27 20:33
Dosimetry of Photon Beams in Watero-axis distance (SSD/SAD), field size, depth, wedges, and other factors. SSD setups are calculated using percent depth dose (PDD)-based formulae, while SAD setups are calculated using tissue-air ratio/tissue-phantom ratio/tissue-maximum ratio (TAR/TPR/TMR)-based formulae.作者: Infect 時間: 2025-3-27 22:42 作者: 無思維能力 時間: 2025-3-28 05:38 作者: 改變 時間: 2025-3-28 10:02 作者: 預(yù)示 時間: 2025-3-28 13:48 作者: 正常 時間: 2025-3-28 16:33 作者: 并排上下 時間: 2025-3-28 21:59
Characteristics of Photon Beamsct is known as filtration or beam hardening. Beam quality is a measure of a photon beam’s penetration and can be measured by thickness of a half-value layer in a specified metal, or by percentage depth dose in water.作者: 愉快么 時間: 2025-3-29 00:13 作者: Irksome 時間: 2025-3-29 04:09
Advanced Treatment Planning for EBRTdulated radiotherapy (IMRT) techniques and evaluated using dose-volume histograms (DVHs). Additional imaging may be performed on the day of treatment to verify that the patient is properly positioned.作者: 外形 時間: 2025-3-29 07:43 作者: HUMID 時間: 2025-3-29 14:57 作者: nautical 時間: 2025-3-29 16:49 作者: 擔(dān)心 時間: 2025-3-29 20:35
Production and Properties of Radiationered the ability to deliver photons and electrons in the megavoltage energy range. More recently, electromagnets were developed to be powerful enough to accelerate heavier particles to extremely high energies in a cyclotron or a synchrotron for particle beam therapy.作者: 一大塊 時間: 2025-3-30 00:05
Interactions of Electromagnetic Radiation with Matter will cause the production of an electron and a positron that can cause annihilation. Also at higher energies, photons may interact with the nucleus and cause it to release nucleons. Pair production and photonuclear disintegration are generally undesirable for the purposes of radiation therapy.作者: HEW 時間: 2025-3-30 04:49
Basic Concepts of Hierarchical Planningof other reactions. Unlike photons, particles have specific distances to travel (ranges and path lengths). The release of excessive energy produces a Bragg Peak when a heavy charged particle comes to the end of its path length. There are specific interactions for particles that define the radiation dose and distribution.作者: 衰老 時間: 2025-3-30 11:34 作者: Lice692 時間: 2025-3-30 13:21 作者: 干旱 時間: 2025-3-30 19:22 作者: 糾纏,纏繞 時間: 2025-3-30 21:45
Grundlagen der Warteschlangentheorie,ntly the energy falls off rapidly to zero. In order to be clinically useful, the Bragg peak must be spread out. This is accomplished with a modulator wheel. Protons are typically generated from a cyclotron, a synchrocyclotron, or a synchrotron. The beam created from these devices can be further modulated to fit the clinical need.作者: Spinal-Fusion 時間: 2025-3-31 02:15 作者: VOK 時間: 2025-3-31 05:54 作者: inspired 時間: 2025-3-31 12:40 作者: epicondylitis 時間: 2025-3-31 15:55
Contestations in Contemporary Southeast Asiaces are classified as nuclear byproduct material. The use of byproduct material requires an authorized user and a radiation safety officer, as well as a written directive and a quality management program (QMP). Deviations from the written directive may be classified as medical events (misadministration) depending on their severity.作者: 方便 時間: 2025-3-31 17:31
Basic Concepts of Hierarchical Planninge tension to fall apart by coulombic forces exerted by the protons. The individual nucleons are made up of quarks that are held together by the weak force. Mass and energy are interchangeable by E?=?mc., and this can be demonstrated by the nuclear binding energy that causes a mass deficit caused by 作者: anagen 時間: 2025-4-1 00:24 作者: Heart-Rate 時間: 2025-4-1 05:19
https://doi.org/10.1007/978-3-662-03830-7adiation. Particles are directly ionizing while electromagnetic radiation is indirectly ionizing because it sets other particles in motion to deposit the dose. The majority of innovation in radiation therapy has focused on electromagnetic radiation, beginning with X-ray tubes and γ-rays emitted from作者: LARK 時間: 2025-4-1 09:14 作者: 合同 時間: 2025-4-1 10:34
Basic Concepts of Hierarchical Planningrpose of describing particle radiotherapy. Particles can be described as charged or uncharged and heavy or light. Charged particles are usually directly ionizing by acting through coulombic forces while uncharged particles are indirectly ionizing, often causing ionization as a secondary consequence 作者: 躺下殘殺 時間: 2025-4-1 16:50
Single Fibre Microneurography and Sensation absorption of energy in a medium is quantified as dose, measured in Gray. Due to the different effects of radiation in different tissues as well as the need for radiation safety and protection standards, dose is expressed in Sieverts for equivalent radiation dose and effective radiation dose. Radia作者: Prophylaxis 時間: 2025-4-1 21:44
Hierarchies and the Visual Systemensity) at depth. A half-value layer is a thickness of material that decreases the intensity to half of its original value. In a polyenergetic photon beam, lower energies are attenuated more rapidly than higher energies. Therefore, the average energy of the beam increases with attenuation. This effe作者: SPALL 時間: 2025-4-1 23:37 作者: 香料 時間: 2025-4-2 05:09
Order and Disorder in the Motor Systemions in shape and density. These dose correction techniques range from very simple rules to complex computer algorithms. Wedges and compensators may be used to correct for patient surface shape. Bolus may be used to increase the surface dose. Field-matching techniques may be used for treatments with
