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Study sets matching "physics radiation protection"

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Study sets matching "physics radiation protection"

72 terms
Radiation Physics and Radiation Protection *registry*
Who discovered the x-ray and when did…
Where is the filament located in the x…
What material makes up the filament an…
True or False: The filament is heated…
- Wilhelm Röntgen... - Wurzburg, Germany... - November 8, 1895
the cathode
- Tungsten... - The filament (cathode) releases electrons when h…
True
Who discovered the x-ray and when did…
- Wilhelm Röntgen... - Wurzburg, Germany... - November 8, 1895
Where is the filament located in the x…
the cathode
18 terms
Health Physics/Radiation Protection
Radiation Exposure in Daily Life
Average annual effective radiation dose
Radon
Dose limit, Whole body
Natural (83%)... Radon, Internal, Terrestrial, Cosmic... Manmade…
3 mSv... (300 mRems)... Approx 8.5 mcSv/day
By far the most significant source of radiation.... 2 mSv per y…
50 mSv/year.... Cumulative dose 10 mSv*age.... 1/10th for pregnan…
Radiation Exposure in Daily Life
Natural (83%)... Radon, Internal, Terrestrial, Cosmic... Manmade…
Average annual effective radiation dose
3 mSv... (300 mRems)... Approx 8.5 mcSv/day
72 terms
Diagnostic Imaging: Radiation Physics and Radiation Protection
Who discovered the x-ray and when did…
Where is the filament located in the x…
What material makes up the filament an…
True or False: The filament is heated…
- Wilhelm Röntgen... - Wurzburg, Germany... - November 8, 1895
the cathode
- Tungsten... - The filament (cathode) releases electrons when h…
True
Who discovered the x-ray and when did…
- Wilhelm Röntgen... - Wurzburg, Germany... - November 8, 1895
Where is the filament located in the x…
the cathode
51 terms
Health Physics/Radiation Protection
What are natural sources of radiation?
How much of our radiation exposure in…
How much radiation do we get from radon?
What are manmade sources of radiation?
Cosmic... Terrestrial... Internal... Radon
83%
56%
National defense... Industry... Healing arts... Miscellaneous
What are natural sources of radiation?
Cosmic... Terrestrial... Internal... Radon
How much of our radiation exposure in…
83%
30 terms
Radiation Protection and Physics of Diagnostic Radiology
What type of energy is an x-ray?
How do x-rays travel?
What are the parameters for measuring…
What is a photon?
Electromagnetic radiation
In orthogonal planes in sine-wave fashion
Frequency... Wavelength... Velocity
A discrete bundle of electromagnetic radiation (x-rays) as op…
What type of energy is an x-ray?
Electromagnetic radiation
How do x-rays travel?
In orthogonal planes in sine-wave fashion
52 terms
Physics- Lecture 4 (Radiation Protection)
What are advisory groups?
What dose ICRP stand for, and what yea…
ICRP chartered by congress in ____ as…
What does NCRP stand for?
A number of different organizations and agencies involved in…
International Commission on Radiological Protection, 1928
1964. National Council on Radiation Protection and Measurements
national council on radiation protection and measurements
What are advisory groups?
A number of different organizations and agencies involved in…
What dose ICRP stand for, and what yea…
International Commission on Radiological Protection, 1928
24 terms
Radiation physics lecture 4 radiation protection
advisory groups
ICRP
ICRP formed in? committee?
ICRP chartered by congress in ____ as…
number of different organizations and agencies: number of dif…
International Commission on Radiological Protection
1928
1964. national council on radiation protection and measurements
advisory groups
number of different organizations and agencies: number of dif…
ICRP
International Commission on Radiological Protection
15 terms
BLOCK 9 (Radiation Physics and Protection)
- What are the units of radiation? (3)…
Units of radiation measurement: Exposu…
Units of radiation measurement: Dose... -…
Units of radiation measurement: Dose E…
- Roentgen, Rad, Rem or Sievert... - Roentgen... - Rad... - Rem or Sie…
- Roentgen... - R... - coulomb/Kilogram
- Rad... - absorbed dose... - gray ; 100 rad = 1 gray... - patients…
- Rem or Sievert... - radiation ; same... - occupationally expose…
- What are the units of radiation? (3)…
- Roentgen, Rad, Rem or Sievert... - Roentgen... - Rad... - Rem or Sie…
Units of radiation measurement: Exposu…
- Roentgen... - R... - coulomb/Kilogram
176 terms
Radiation Protection and QA: physics and biology
sources of background radiation
iodine-125: half life, clinical use, a…
palladium-103: half life, clinical use…
cesium-137: half life, clinical use, r…
cosmic rays, terrestrial radiation, internal
59.4 days... LDR prostate... permanent implant
17 days... LDR prostate... permanent implant
30 years... LDR GYN... temporary implant
sources of background radiation
cosmic rays, terrestrial radiation, internal
iodine-125: half life, clinical use, a…
59.4 days... LDR prostate... permanent implant
15 terms
Health Physics Radiation Protection - Sam
Patient Effective Dose 544
Technologist Effective Dose 544
Time
Distance
the relationship between patient dose and effective dose
we receive essentially all of our occupational radiation expo…
1 of 3 cardinal principles of radiation protection developed…
2 of 3 cardinal principles of radiation protection developed…
Patient Effective Dose 544
the relationship between patient dose and effective dose
Technologist Effective Dose 544
we receive essentially all of our occupational radiation expo…
24 terms
Physics- Lecture 4 (Radiation Protection)
advisory groups
ICRP
ICRP formed in? committee?
ICRP chartered by congress in ____ as…
number of different organizations and agencies: number of dif…
International Commission on Radiological Protection
1928
1964. national council on radiation protection and measurements
advisory groups
number of different organizations and agencies: number of dif…
ICRP
International Commission on Radiological Protection
38 terms
Radiation Protection Physics Exam 1
living things are made up of
protoplasm
cell is what percent water
osmosis
protoplasm
thick viscous colloidal (suspension) substance that constitut…
70-85%
substances being pushed or pulled through a membrane because…
living things are made up of
protoplasm
protoplasm
thick viscous colloidal (suspension) substance that constitut…
479 terms
BLOCK 9 - Radiation Physics & Protection
Characteristics of X-Radiation
Photon
0.1 - 0.5 Angstroms
Longer Wavelengths
Travels in a straight line, diverges from a point of origin,…
Discreet bundle of energy traveling at the speed of light
Useful Range of a Wavelength
Lower Energy
Characteristics of X-Radiation
Travels in a straight line, diverges from a point of origin,…
Photon
Discreet bundle of energy traveling at the speed of light
15 terms
Health Physics, Radiation Protection Maui
Patient Effective Dose
Technologist Effective Dose
Time
Distance
equivalent whole body dose translated into absorption by pati…
equivalent whole body dose; in providers wearing protective e…
One of the 3 cardinal principles of radiation protection deve…
One of the 3 cardinal principles of radiation protection deve…
Patient Effective Dose
equivalent whole body dose translated into absorption by pati…
Technologist Effective Dose
equivalent whole body dose; in providers wearing protective e…
15 terms
Health Physics, Radiation Protection - Nadej
Patient effective dose
Tech effective dose
Time
Distance
Dose absorbed by patient relative to the area examined and W1
Dose absorbed by provider
Must be kept as shirt as possible
Must be as large as possible between the source of the radiat…
Patient effective dose
Dose absorbed by patient relative to the area examined and W1
Tech effective dose
Dose absorbed by provider
69 terms
Block 9 Radiation Physics & Protection
*What are the 5 characteristics of x-r…
*Photons-
Useful range for wavelength-
*Useful beam-
Travels in a straight line, diverges from a point of origin,…
Discrete bundles of energy traveling at the speed of light.
.1 to .5 angstroms
Primary radiation that exits the patient and forms the image
*What are the 5 characteristics of x-r…
Travels in a straight line, diverges from a point of origin,…
*Photons-
Discrete bundles of energy traveling at the speed of light.
33 terms
Fluoroscopy Radiation Protection Review: Terminology and Physics
radiation
common diagnostic radiations
alpha
beta
-radiation is energy in transition (radiant energy)... -it can t…
-alpha... -beta... -gamma... -x-ray
*origin in nucleus... -charge of +2... -strong ionization ... -weak pe…
*origin is in the nucleus... -charge of -1... -moderate ionization…
radiation
-radiation is energy in transition (radiant energy)... -it can t…
common diagnostic radiations
-alpha... -beta... -gamma... -x-ray
142 terms
Radiation Protection
Radiation Protection
Goal of Radiation Protection
World Advisory Agencies
U.S. Regulatory Agencies
Effective measures employed by radiation workers to safeguard…
to prevent the occurrence of serious radiation-induced condit…
ICRP (1928)- international committee on radiological protecti…
NRC- Nuclear Regulatory Committee... -a federal agency that has…
Radiation Protection
Effective measures employed by radiation workers to safeguard…
Goal of Radiation Protection
to prevent the occurrence of serious radiation-induced condit…
Radiation Protection
Added Filtration
ALARA
Aluminum equivalent
Area Monitoring
The placement of aluminum discs in the path of the x-ray beam…
The oral health care team has an ethical responsibility to em…
Total filtration is the sum of the inherent and added filtrat…
This procedure involves making an on -site survey to measure…
Added Filtration
The placement of aluminum discs in the path of the x-ray beam…
ALARA
The oral health care team has an ethical responsibility to em…
15 terms
Health Physics Radiation Protection Amna Virk
Patient Effective Dose
Technologist Effective Dose
Time
Distance
The equivalent whole body dose is the weighted average of the…
During radiography , the radiographer is positioned behind a…
One of the 3 cardinal principles of radiation protection deve…
One of the 3 cardinal principles of radiation protection deve…
Patient Effective Dose
The equivalent whole body dose is the weighted average of the…
Technologist Effective Dose
During radiography , the radiographer is positioned behind a…
62 terms
RADIATION PROTECTION
Units of Radiation Measurement (Tradit…
Units of Radiation Measurement (Intern…
Roentgen
RAD
1) Roentgen... 2) RAD... 3) REM... 4) Curie
1) Coulomb/Kilogram... 2) Gray... 3) Sievert... 4) Becquerel
The Measurement of the ionization of air by X-ray or gamma rays
Radiation Absorbed Dose
Units of Radiation Measurement (Tradit…
1) Roentgen... 2) RAD... 3) REM... 4) Curie
Units of Radiation Measurement (Intern…
1) Coulomb/Kilogram... 2) Gray... 3) Sievert... 4) Becquerel
123 terms
Radiation Protection
Which of the following increased radia…
To implement an effective radiation sa…
Radiation has been present on earth si…
Occupational and nonoccupational does…
Repeated radiographic exposures as a result of technical erro…
X ray equipment that can produce only very low kilovoltage an…
It's beginning
Radiographers and radiologists keep exposure as low as reason…
Which of the following increased radia…
Repeated radiographic exposures as a result of technical erro…
To implement an effective radiation sa…
X ray equipment that can produce only very low kilovoltage an…
41 terms
Radiation protection
What are the 3 principles of radiation…
What are the units for equivalent and…
What is the equivalent dose?
True or false: the radiation weighting…
Time, distance and shielding
Sievert
Different types of ionising radiation differ in the way they…
True
What are the 3 principles of radiation…
Time, distance and shielding
What are the units for equivalent and…
Sievert
15 terms
Health Physics, Radiation Protection- Luan Truong
Patient Effective Dose
Technologist Effective Dose
Time
Distance
equivalent that body dose effective to the patient in one loc…
equivalent that body dose by wearing protective equipment to…
The 1st Cardinal Principle of Radiation Protection: Keep the…
The 2nd Cardinal Principle of Radiation Protection: Maintain…
Patient Effective Dose
equivalent that body dose effective to the patient in one loc…
Technologist Effective Dose
equivalent that body dose by wearing protective equipment to…
Radiation Protection
"radiation workers using effective mea…
Will the effects of radiation exposure…
What are 5 biological effects on human…
"The degree to which the diagnostic st…
Radiaton Protection
Both, and can affect future offspring
1. radiation sickness 2. mutations 3. death 4. cataracts, ery…
Diagnostic Efficacy
"radiation workers using effective mea…
Radiaton Protection
Will the effects of radiation exposure…
Both, and can affect future offspring
15 terms
Health Physics, Radiation Protection - Carmen Soria
Patient Effective Dose
Technologist Effective Dose
Time
Distance
effective dose is the weighted average dose to each of the ti…
effective dose for occupational radiation exposure is based o…
Keep the time of exposure to radiation as short as possible
Maintain as large a distance as possible between the source o…
Patient Effective Dose
effective dose is the weighted average dose to each of the ti…
Technologist Effective Dose
effective dose for occupational radiation exposure is based o…
67 terms
Radiation Protection for the Radiographer
prime source of occupational exposure
accountable for most of the scatter ra…
Design considerations regarding Worklo…
radiation type that lead aprons are de…
scatter radiation
Compton scattering
voltage and mA
scatter
prime source of occupational exposure
scatter radiation
accountable for most of the scatter ra…
Compton scattering
15 terms
Health Physics, Radiation Protection -Daniel Grossman
Patient Effective Dose
Technologist Effective Dose
Time
Distance
equivalent whole-body dose, weighted average of the radiation…
equivalent whole-body dose, weighted average of the radiation…
The 1st Cardinal Principle of Radiation Protection: Keep the…
The 2nd Cardinal Principle of Radiation Protection: Maintain…
Patient Effective Dose
equivalent whole-body dose, weighted average of the radiation…
Technologist Effective Dose
equivalent whole-body dose, weighted average of the radiation…
15 terms
Health Physics, Radiation Protection- Cynthia Briscoe
Patient Effective Dose
Technologist Effective Dose
Distance
Time
The equivalent whole body dose is the weighted average of the…
During radiography the radiographer is positioned behind a pr…
the second cardinal principle of radiation protection is main…
The first cardinal principle of radiation protection is keepi…
Patient Effective Dose
The equivalent whole body dose is the weighted average of the…
Technologist Effective Dose
During radiography the radiographer is positioned behind a pr…
Health Physics, Radiation Protection by Tina Shelton
Patient Effective Dose
Technologist Effective Dose
Time
Distance
The whole body dose translated into absorption by patient on…
The whole body dose, that the provider's wearing protective e…
The technologist's should be behind the lead wall.
The technologist's should be at least six feet from the sourc…
Patient Effective Dose
The whole body dose translated into absorption by patient on…
Technologist Effective Dose
The whole body dose, that the provider's wearing protective e…
15 terms
Health physics Radiation protection- Farshid Momtaz
Patient Effective Dose
Technologist Effective Dose
Time
Distance
equivalent whole body dose translated into absorption by pati…
equivalent whole body dose; in providers wearing protective e…
One of the 3 cardinal principles of radiation protection deve…
One of the 3 cardinal principles of radiation protection deve…
Patient Effective Dose
equivalent whole body dose translated into absorption by pati…
Technologist Effective Dose
equivalent whole body dose; in providers wearing protective e…
11 terms
Radiation Protection
Genetic Effect
Somatic Effects
Ionizing Radiation
Attenuation
Ability of ionizing radiation to cause DNA damage and genetic…
Ionizing radiation to limited exposure for individuals and it…
Any type of particle or electromagnetic wave that carries eno…
The absorption of photons by matter.
Genetic Effect
Ability of ionizing radiation to cause DNA damage and genetic…
Somatic Effects
Ionizing radiation to limited exposure for individuals and it…
136 terms
Radiation Protection Test 2
Cells
Functions of a cell:
Every mature human cell is highly spec…
In order for efficient cell operation…
The basic units of all living matter and are essential for li…
Its responsible for the conduction of nerve impulses, contrac…
Move... Grow... React... Protect themselves... Repair damage... Regulate lif…
-Provide food as a source of raw material for the release of…
Cells
The basic units of all living matter and are essential for li…
Functions of a cell:
Its responsible for the conduction of nerve impulses, contrac…
26 terms
Radiation Protection
late effects
threshold dose
stochastic
deterministic
do not have a threshold dose. Increasing the dose will increa…
a certain dose will definitely create a certain effect. examp…
effects that have no threshold dose.
effects that do have a threshold dose.
late effects
do not have a threshold dose. Increasing the dose will increa…
threshold dose
a certain dose will definitely create a certain effect. examp…
106 terms
Module 1 Radiation Protection
Radiation Protection
Ionizing radiation
Biologic effects
Who discovered x-rays and what year?
Effective measures employed by radiation workers to safeguard…
Any radiation exposure that does not benefit a person in term…
Damage to living tissue of animals and humans exposed to radi…
William Roentgen, November 8th, 1895
Radiation Protection
Effective measures employed by radiation workers to safeguard…
Ionizing radiation
Any radiation exposure that does not benefit a person in term…
38 terms
RAD 212 Radiation Protection and Health Physics
Who reviews and recommends dose limits…
What are the 3 cardinal rules for radi…
How do radiologists limit exposure dur…
How much time does the fluorscopy time…
NCRP
-Keep exposure time short... -Maintain as large of a distance fr…
BY not continually expose the patient
5 mins
Who reviews and recommends dose limits…
NCRP
What are the 3 cardinal rules for radi…
-Keep exposure time short... -Maintain as large of a distance fr…
16 terms
Radiation Protection
History (4)
Define Permissible Dose (1)
Protection in Diagnostic Radiology (2)
Limitation of Field Size (1)
-Man exposed to radiation from:... 1. Radioactive substances in…
-Dose accumulated over a long period of time or resulting fro…
1. Limit exposure of patient to minimum to produce satisfacto…
-Minimum area by use of diaphragm and cones, especially when…
History (4)
-Man exposed to radiation from:... 1. Radioactive substances in…
Define Permissible Dose (1)
-Dose accumulated over a long period of time or resulting fro…
15 terms
Radiation Protection Concepts (MPD) x-ray physics
stochastic effect
non-stochastic
MPD
occupational annual whole body
random... no threshold... linear (^ dose: ^effect)... latent effect:... c…
threshold... not linear... cataracts... sterility
maximum permissible dose... aka ... dose limiting radiations... no sig…
5 REM/yr... 5 REM = 5000 mREM... average: < 100 mREM
stochastic effect
random... no threshold... linear (^ dose: ^effect)... latent effect:... c…
non-stochastic
threshold... not linear... cataracts... sterility
87 terms
Radiation Protection
Four units to measure radiation
What is the symbol for roentgen
Description for Roentgen
Equation for roentgen
roentgen, rad, rem, and curie.
(R), (Gya)
Unit of exposure; deals with the amount of ionization in the…
equal to 2.8 x 10 to the negative 4 C/kg (This refers to the…
Four units to measure radiation
roentgen, rad, rem, and curie.
What is the symbol for roentgen
(R), (Gya)
67 terms
Radiation protection
Example of ionizing radiation
Consequences of ionization in human ce…
Consequences of ionization in human ce…
ERP
X-ray
Creation of unstable Atoms, production of free electrons, pro…
creation of new biological molecules detrimental to the livin…
Effective radiation protection
Example of ionizing radiation
X-ray
Consequences of ionization in human ce…
Creation of unstable Atoms, production of free electrons, pro…
42 terms
Radiation Protection
50 %
OSL
Pair Production
Classic scatter
NRCP # 150- What percentage of humans' radiation exposure is…
Personnel monitoring device that is accurate to 1mrem... a. TLD…
What interaction occur at greater than 1.02 million electron…
What is also known as "coherent scattering"... a. photoelectric…
50 %
NRCP # 150- What percentage of humans' radiation exposure is…
OSL
Personnel monitoring device that is accurate to 1mrem... a. TLD…
40 terms
Radiation Protection
Dose limits for lens of the eye annual…
Dose limts for embyro/fetus in 1 month?
Dose limit for thyroid annually?
Dose limit for skin, hands, & feet ann…
150mSv
.5 mSv
500mSv
500mSv
Dose limits for lens of the eye annual…
150mSv
Dose limts for embyro/fetus in 1 month?
.5 mSv
41 terms
Radiation Protection
Ionizing Radiation
Somatic Effects
Genetic Effects
Natural Background Radiation
radiation that possesses the ability to remove electrons from…
effects of radiation on the body being irradiated
effects of radiation on the genetic code of a germ cell; affe…
radiation contained in the unpolluted environment
Ionizing Radiation
radiation that possesses the ability to remove electrons from…
Somatic Effects
effects of radiation on the body being irradiated
37 terms
Radiation protection
what should radiation safety programs…
somatic damage
genetic
latent period
technique charts ... positioning aids... protective apparel... dosimet…
damage to body within the lifetime of a person... cancer catarac…
causes damage to genes of reproductive cells= gene mutation…
period following irradiation and prior to changes occurring i…
what should radiation safety programs…
technique charts ... positioning aids... protective apparel... dosimet…
somatic damage
damage to body within the lifetime of a person... cancer catarac…
151 terms
Radiation Protection
What is used to account for the differ…
According to the Natinal Council on Ra…
A time of 1.5 minutes is required for…
If the exposure rate to an individual…
A. 1 only
B. 5 mSv
D. 6.87 mR... 275/60= x/1.5... 60x/60= 412.5/60 ... = 6.875
D. 1.48 mR... 10/x= 36/16... 36x=160... x=4.44 (60 minutes)... 4.44/3=…
What is used to account for the differ…
A. 1 only
According to the Natinal Council on Ra…
B. 5 mSv
99 terms
Radiation Protection
BERT background equivalent time compar…
The degree to which the study accurate…
The product of the average absorbed do…
The sum of the weighted equivalent dos…
The amount of radiation received from an exam with natural ba…
Diagnostic efficacy
Equivalent dose
Effective dose
BERT background equivalent time compar…
The amount of radiation received from an exam with natural ba…
The degree to which the study accurate…
Diagnostic efficacy
Radiation Protection
Two Types of Radiation Effects?
Where does radiation come from? For pa…
What does ALARA stand for?
Cordial principle in Radiation Protect…
ACUTE and CHRONIC... Acute: Usually due to accidents or Therapy.…
Patients: The majority of exposure comes from CT Scans.... Radio…
As Low As Reasonably Achievable
Distance, Time and Shielding
Two Types of Radiation Effects?
ACUTE and CHRONIC... Acute: Usually due to accidents or Therapy.…
Where does radiation come from? For pa…
Patients: The majority of exposure comes from CT Scans.... Radio…
37 terms
Radiation Protection
A Radiographer's responsibility.
ALARA Who does this apply to?
ALARA
Critical Thinking Scenario
Have legal, ethical and moral responsibility to protect all p…
all persons.
It is intended to utilize the best methods and practices to m…
You are the student radiographer in the ED.... A 14 year old mal…
A Radiographer's responsibility.
Have legal, ethical and moral responsibility to protect all p…
ALARA Who does this apply to?
all persons.
63 terms
Radiation Protection
T or F: Dental radiology is associated…
Old dental x rays, when radiation expo…
People who need radiation protection
Factors (of the x rays) to consider fo…
true
intracranial meningioma
patients... operator... office personnel
type ... frequency... extent of each x ray
T or F: Dental radiology is associated…
true
Old dental x rays, when radiation expo…
intracranial meningioma
205 terms
Radiation Protection
The two cells that are most sensitive…
A whole body dose of ___ rads produces…
Bairum is a good contrast agent becaus…
Permanent epilation has a threshold do…
Spermatogonia & Lymphocyte
25 rads
High atomic number
700 rad
The two cells that are most sensitive…
Spermatogonia & Lymphocyte
A whole body dose of ___ rads produces…
25 rads
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