 To provide an overview of external and internal dosimeters used for accupationl radiation protection 

Slides:

Advertisements

Similar presentations

Radiation Protection Service University of Glasgow Lecture 2: Detecting Radiation Detecting Ionising Radiation James Gray University RPA.

Advertisements

Radiation Protection.

1 Radiological protection, dosimetry & environmental monitoring National Training Course on Radiopharmacy, Radiochemistry and Radioisotope Production Site.

32 P Module Objectives  To understand the physical nature of 32 P.  To understand the 32 P is both and internal and external radiation hazard.  To understand.

Radiation Safety Course Radiation Monitoring Heath de la Giroday Dispensing Chemist Radiation Safety Officer.

Detecting and Measuring Ionizing Radiation -2

4/2003 Rev 2 II.3.6 – slide 1 of 18 Part IIQuantities and Measurements Module 3Principles of Radiation Detection and Measurement Session 6Photographic.

Nuclear Radiation Basics. Copyright © 2011International Medcom Contents What is Radiation? What is Radiation? Instruments that Measure Nuclear.

Intervention for Chronic and Emergency Exposure Situations Basic Concepts of Emergency Preparedness Personal Protective Equipment, Devices and Procedures.

2: Radiation Measurements

INSTRUMENTATIONS AND METHODS IN RADIOLOGICAL MEASURING AND MONITORING

Principles of Radiation Detection

3/2003 Rev 1 II.2.9b – slide 1 of 40 IAEA Post Graduate Educational Course Radiation Protection and Safe Use of Radiation Sources Part IIQuantities and.

Radiation Safety for Radiographers Bruce Busby Certified Health Physicist.

ANALYTICAL X-RAY SAFETY User Training Centre for Environmental Health, Safety and Security Management.

Training Module 2 – Version 1.1 For Internal Use Only ® Radiation 

Dosimetry Sanja Dolanski Babić March, Ultrasound interaction with tissue.

IAEA International Atomic Energy Agency Assessment of External and Internal Exposures Michael Hajek Radiation Safety and Monitoring Section Division of.

Copyright © 2013 by Mosby, Inc., an affiliate of Elsevier Inc. All rights reserved. Occupational Radiation Dose Management Chapter 38.

 Justification is the answer.  Dose limits are not applicable only recommened.

Higher Physics – Unit 3 3.5Dosimetry and Safety. Activity of Radiation The activity of a radioactive source is the average number of nuclei decaying per.

1 Management of Occupational Exposure Dose using Entrance/Exit Processing System in Shika Nuclear Power Station Takeshi Masaki Nuclear Power Dept. Hokuriku.

In vivo dosimetry Eirik Malinen Eva Stabell Bergstrand Dag Rune Olsen.

Nuclear Medicine Quality control.

Md.Kausher ahmed Electrical department. Biomedical engineering Code:6875.

Introduction to nuclear medicine technology NMT 231 Aya Ahmed Saeed.

Session II.3.7 Part II Quantities and Measurements

International Atomic Energy Agency ASSESSMENT OF OCCUPATIONAL EXPOSURE DUE TO EXTERNAL RADIATION SOURCES AND INTAKES OF RADIONUCLIDES Dosimetry Services.

Organization and Implementation of a National Regulatory Program for the Control of Radiation Sources Technical Services.

210 Po Polonium 210 Alexander Litvinenko. Nuclear Radiation We will look at three types of nuclear radiation. RadiationSymbolRange alpha beta gamma α.

Radiological Monitoring and Measurement 1 OBJECTIVES Allow the participants to understand the concepts of measuring dose received by radiation workers.

Qing Liang, PhD Medical Physicist Mercy Health System, Janesville, WI

Radiation Dosimeters.

3/2003 Rev 1 II.3.7 – slide 1 of 40 Session II.3.7 IAEA Post Graduate Educational Course Radiation Protection and Safe Use of Radiation Sources Part IIQuantities.

Technical Services. Objectives To identify the technical services needed within the infrastructure for an effective implementation of regulatory programme.

Gamma Camera Technology

Radiation detectors Ion chamber 2. Geiger Muller counter (GM).

PERSONAL MONITORING DEVICES

Radiation Protection RTMR 284 CHAPTER 20 PART II.

RADIATION PROTECTION 04/12/2016.

Ch 36 Radiation Protection Design

Uses of radiation.

Occupational Radiation Protection during High Exposure Operations

Basic Radiation Protection for Search Teams

Do we need dosimetry? The Italian group is studying this problem.

IONIZING RADIATION IN MEDICINE.

Radiation Protection for the Beam Line 4 Schools project

What is an isotope? Agenda for Tuesday Feb 8th Percent composition

OCR Gateway 2016 Physics topic 6

Chapter 9 Nuclear Radiation

RADIATION LAB TIME - DISTANCE - SHIELDING

Gamma-ray Spectroscopy technique is commonly used in Planetary Exploration Missions.

Chapter 9 Nuclear Radiation

Occupational Radiation Dose Management

Occupational Radiation Dose Management

Radiation Health Physics

1 Principles of Radiation Detection Operational Radiological Safety Course U.S. Army Chemical Biological Radiological & Nuclear School Edwin R. Bradley.

Radiation Protection Service University of Glasgow Lecture 2: Detecting Radiation Detecting Ionising Radiation James Gray University RPA.

There are two kinds of radiation monitors used for medical purposes: survey monitors personal monitors.

Radioactivity B. Sc. -III Feb Dr. Wagh G. S. M. Sc. M. Phil. Ph

First FRCR Examination in Clinical Radiology Diagnostic Radiology & Radionuclide Radiology (4b) Patient Dosimetry John Saunderson Radiation Protection.

Detecting Ionising Radiation

Intercomparison on Personal Dose Equivalent (Hp(10))

Types of Radiation, Detection and Biological Effects

Film badge: Measure and record radiation exposure due to gamma rays, X-rays, and Beta particles. Permanent record Cheaper Energy dependence Fading film.

Film badge: Measure and record radiation exposure due to gamma rays, X-rays, and Beta particles. Permanent record Cheaper Energy dependence Fading film.

Film badge: Measure and record radiation exposure due to gamma rays, X-rays, and Beta particles. Permanent record Cheaper Energy dependence Fading film.

 To provide an overview of external and internal dosimeters used for accupationl radiation protection 

Presentation transcript:

 To provide an overview of external and internal dosimeters used for accupationl radiation protection 

Types of Dosimetry Services External Dosimetry Services EPD (FBD) (TLD) (OSL) Internal Dosimetry Service Thyroid Scanning WBC

Film emulsion is made a AgBr crystals Film has been used to determine personal Exposure to photons betas and thermal neutrons Measured doses between (0.1mSv- 2Sv)

. The thermoluminescence mechanism is complex. Some TL materials are nearly tissue – equivalent.Dosimeters have excellent long term stability. Dose evaluation is rapid and dosimeters are reusable. Measured doses between (0.2mSv-

Evaluate possible radiation exposure quickly. Sensible to gamma only. Located in Emergency kits. Advantages: Direct read-out: Self-reading Records dose Disadvantages Sensitive to gamma only Extremely sensitive to shock

Activated using the Electronic Dosimeter reader Self-reading, digital display of accumulated dose and dose rate Visual and audible alarms for accumulated dose and dose rate Silicon diode detector to detect gamma radiation (sensitive to gamma only) Resistant to shock Downloads dose and dose rate data to Radiation Exposure Control database when deactivated by the ED reader

 Measuring radionuclide in human body directly Whole body counting  Only γ-ray or characteristic X-ray from human body using whole body counter  It is needed to remove (decontamination) the radionuclide such as take off clothing or take a shower  Stand up type whole body counter : Large two NaI(Tl) detectors)  Bed scanning type whole body counter : two HPGe detectors (25% relative efficiency)

 Detector : 2x2 in. NaI(Tl) scintillation detector Lead shield : 1.5 cm  Distance (Detector -Neck surface) : 12 cm Counting time : 600 s . MDA : 200 Bq for I-131

 Thank you for your attention