Q 1. The Compton effect is A. Photon’s entire energy is used to eject an electron B. Photon’s entire energy is used to eject an electron and low energy.

Slides:

Advertisements

Similar presentations

Chapter 4 Radiation Dosimeters

Advertisements

7. RADIATION AND RADIATION PROTECTION

X rays Finishing Option G. X-ray production We have seen that an accelerating charge must emit energy in the form of EM radiation. If this acceleration.

LECTURE- 5 CONTENTS  PHOTOCONDUCTING MATERIALS  CONSTRUCTION OF PHOTOCONDUCTING MATERIALS  APPLICATIONS OF PHOTOCONDUCTING MATERIALS.

(Smiling and self esteem). The first teeth which are shed and replaced by permanent teeth. There are 20 primary teeth The primary teeth are replaced starting.

Cutnell/Johnson Physics 7th edition

Physics of Radiography

Chapter 22 Dental Care Health Care Science Technology Copyright © The McGraw-Hill Companies, Inc.

Chapter 31 Atomic Physics Early Models of the Atom The electron was discovered in 1897, and was observed to be much smaller than the atom. It was.

Types of Radiation Interactions All or Nothing Many Small There is a finite probability per unit length that the radiation is absorbed. If not, there is.

INTERACTION OF IONISING RADIATION WITH MATTER

LECTURE 1 By Head Of DEPARTMENT Dr Rashid Hassan Assistant Professor Science of Dental Materials DEPARTMENT RAWAL INSTITUTE OF HEALTH SCIENCES RAWAL.

Physics of Radiography Interaction with matter. By the end of the first part of the session you should be able to: 1.Understand what can happen as x-ray.

Physics of Radiography

Radiation therapy is based on the exposure of malign tumor cells to significant but well localized doses of radiation to destroy the tumor cells. The.

E = hf E – energy of a quantum (Joules) h – Plank’s constant (6.626 x J  s) f – frequency of absorbed or emitted EMR.

E = hf E – energy of a quantum (Joules) h – Plank’s constant (6.626 x J  s) f – frequency of absorbed or emitted EMR.

Time, Dose, and Fractionation

PAMELA Contact Author: CONFORM is an RCUK-funded Basic Technology Programme Charged Particle Therapy Treating cancer with protons and light ions Ken Peach,

Caries managements Is Restoration required??. Traditional caries management has consisted of detection of caries lesion followed by immediate restoration.

Resident Physics Lectures

Chapter 5 Electrons in Atoms Wave and Particle Models of Light

Radiation Oncology Kazumi Chino, M.D. Faith Hope and Love Cancer Center.

Characteristic Radiation in Tungsten Targets Shel l # of electrons Binding energy L Char M Char N Char O Char P Char Eff X-ray Energy.

Chapter 29 Particles and Waves.

Chapter 4 Electron Configurations. Early thoughts Much understanding of electron behavior comes from studies of how light interacts with matter. Early.

Wave-Particle Duality: The Beginnings of Quantum Mechanics.

Unit 8 – Part A. Radioactivity Radioactive: When an element emits any form of radiation. Radiation: The transfer of energy by the means of electromagnetic.

Wave-Particle Duality: The Beginnings of Quantum Mechanics.

Interactions of radiation with Matter

Extended Questions- The Answers

1 A photocell is a device for generating an electrical current from light (see Figure 1). Figure 1 Each photocell contains a metal. A photon of light.

Space Environment October 1, 2003 H. Kirkici Istanbul Technical University Lecture-6 and 7 Vacuum Environment (in the ionosphere and above range) Effects.

Chapter 5 Interactions of Ionizing Radiation. Ionization The process by which a neutral atom acquires a positive or a negative charge Directly ionizing.

Dr. Shahzadi Tayyaba Hashmi

PHYSICSMR.BALDWIN MODERN PHYSICS5/14/14 AIM: How does light interact with matter? DO NOW: How does energy travel from one place to another? How is your.

Neils Bohr What keeps the negative electrons from falling toward the positive nucleus?

Procedure for use of the AdDent Restorative Warming Tray by Jeffery Brucia, DDS I use this tray for all adhesively bonded restorations. The tray serves.

LOSSES IN FIBER BY:Sagar Adroja.

REMOVABLE PROSTHETICS

 Waves & Energy H Ch 5&6. Waves  Vibrating disturbance by which energy is transmitted Amplitude (Wavelength) u = λν.

By: Lawrence Jason Gagtan

Required Views: Single tooth and Edentulous segment of two or more adjacent teeth All photographs must comply with applicable patient privacy laws Do not.

Craigieburn Animal Hospital. Dog and Cat Dental Health.

Modern Model of the Atom The emission of light is fundamentally related to the behavior of electrons.

Chapter 11 Modern Atomic Theory. Rutherford’s Atom What are the electrons doing? How are the electrons arranged How do they move?

Dr Rupak Sethuraman Radiation Biology – 1. FORMAT Introduction Sources of radiation Methods of interaction of radiation with the human body Dosimetry.

Interaction of Radiation with Matter

Unit 3.  Much of the information we get in astronomy is carried by “light”.

Composite Layering to create natural depth and translucency RSD 810

CHAPTER 3 DOSE DETERMINATION FOR EXTERNAL BEAMS

Electron Beam Therapy.

Aftercare of complete denture patients

Q 1. The Compton effect is A. Photon’s entire energy is used to eject an electron B. Photon’s entire energy is used to eject an electron and low energy.

Clinical Electron Dosimetry

Digestive System: Outcome: I can describe the structure of a tooth and accurately label the teeth anatomically. Drill: What is the function of the uvula?

Chapter 29: Particles and Waves

Photon-Matter Interactions

11/10/16 Today I will define the characteristics of a wave and compare the major regions of the electromagnetic spectrum. Warm Up – What are the three.

Medical Imaging and Radiation

Photographs Required Views: Immediate placement of one or more implants in the maxillary anterior segment cases Centric occlusion showing the restored.

Interaction of Electromagnetic Radiation with Matter

The Quantum-Mechanical

Photographs Required Views:

Innovations in the Radiotherapy of Non–Small Cell Lung Cancer

Hot and cold spots are common problems associated with planning:

Chapter 5 The Types of Radiation.

Computed Tomography (C.T)

Presentation transcript:

Q 1. The Compton effect is A. Photon’s entire energy is used to eject an electron B. Photon’s entire energy is used to eject an electron and low energy photon C. Photon’s entire energy is used to eject an negative and one positive electron D. Photon energy is absorbed by colliding by hydrogen nuclei

Q2. Accelerated fractionation is described as Q2. Accelerated fractionation is described as A. 1.7 to 2.0 Gy, 5 fraction/week to 70.0Gy B. B. Reduction of the number of fraction with an increase of the daily fraction C. Increase both the number of fractions and the total dose D. Hybrid state of hypofractionation and hyperfractionation

Q3. The characteristic property of particulate radiation in comparison to photo radiation in dosimetry is Q3. The characteristic property of particulate radiation in comparison to photo radiation in dosimetry is A. falloff region is rapid A. falloff region is rapid B. skin sparing effect is more B. skin sparing effect is more C. higher the energy used, the greater the depth of penetration C. higher the energy used, the greater the depth of penetration D. progressive fall of tissue dose D. progressive fall of tissue dose

Q4 Back scattering to large metallic retardation in tooth during radiotherapy can be treated by Q4 Back scattering to large metallic retardation in tooth during radiotherapy can be treated by A. Replacement with composite restoration A. Replacement with composite restoration B. Extraction before the radiotherapy begin B. Extraction before the radiotherapy begin C. Cover with custum made floride tray C. Cover with custum made floride tray D. Exclude this area during dosimetry design D. Exclude this area during dosimetry design

Q5. Which option is best suited for trismus with dynamic bite openers Q5. Which option is best suited for trismus with dynamic bite openers A. 20 minutes serum two times per day A. 20 minutes serum two times per day B. 30 minutes serum two times per day B. 30 minutes serum two times per day C. 30 minutes serum three times a day C. 30 minutes serum three times a day D. 20 minutes serum once a day D. 20 minutes serum once a day

Q6) Which figure indicates severe mucosal changes in radiotherapy AB C D

Q7) In which candidate you advice extraction before radiation A) Tissue impacted mandibular third molar B) Bony impacted mandibular third molar C) Mandibular molar in doses of 65 Gy D) Maxillary molar in doses of 65 Gy

Q8Which of the following sentence is true A) A translucent boggy mucosa with prominent telangiectasia is good to tolerate denture. B) Palatine salivary gland fibrosis do not lead to difficulty in customary postdam area movement. C) Light polishing of tissue surface of denture is recommended during or after radiotherapy. D) Prosthesis should not fabricated immediately after radiotherapy.

Q9) All are preventive measure of radiotherapy except A) Fluoride gel application 1hr before bedtime but at pre-radiation and during radiation phase. B) CPP-ACP at anytime during the day C) Fluoride tooth paste for normal tooth brushing. D) Remineralizing chewing gum during daytime hour (four times) for 20 minutes

Q10) Which type of article provide the best evidence among these A) Noise analysis B) Case report C) Systematic review D) Randomized controlled trial