Welcome everybody
description
Transcript of Welcome everybody
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Welcom
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ever
ybod
y
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Teacher’s Identity
SYED SAIFUL ISLAMSenior Asst. TeacherJessore International School (JIS), Jessore Cantt. Jessore
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Learning Outcomes
Students will be able to define how X – Ray is generated.
Able to Explain the use of X- Ray’.
Able to analyze the good & harmful effects of X-Ray.
Able to utilize X-ray to find out the metal crack in the industrial area.
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Can you determine what object was radiographed in this slide?
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Class: TenChapter: Twenty FourTime : 50 min.
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X-Ra
yXX
Todays Lesson
X-Ray
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High Electrical Potential
Electrons__+
X-ray Generator or Radioactive Source Creates Radiation
Exposure Recording Device
Radiation Penetrate the Sample
How X-Ray Produces
- Ve potential
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+ve HT- ve HT
Fig- X-Ray Tube
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X-Rays
Phosphor Layer
Protective Lraye
SubstratePhosphor Grains
How X-ray works on Film
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FILM RADIOGRAPHY
Top view of developed film
X-Rays
Phosphor Layer Protective Layer
Substrate
Phosphor Grains
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The ray travels along straight lines.X- ray is a kind of E- magnetic radiation. Its
wavelengthto meter. Unit of X-ray is roentgen.
If an X-ray impinges on a metal, electrons are emitted by it.
These rays produce fluorescence on material like Zinc Sulfide, Barium Platinocyanid etc.
Properties of X-ray
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Group Work
Find out the the frequency of ‘X’ – Ray
band.
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•Technique is used to save human life in medical sector.
•Very useful to inspect and detect metal and luggage's in airport and industrial sector.
•Are used to locate an explosive in a box or leather container.•The custom officials make use of these rays in finding smuggled goods.
Advantages of X-ray/Radiography
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Good effects of X’– Ray
1. Can detect broke bone and internal organs of human body
2. Can be used to detect crack of industrial equipment's.
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Harmful Effects of X-ray Excessive use
damages human limbs.
It creates radiation hazards.
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Remedial action1. Use Radiation Proof Apron. 2. Avoid Radiation area if possible.3. Use Radiation film Badge.
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Technicians who works with radiation must wear monitoring devices that keep track of their total absorption, and alert them when they are in a high radiation area.
Survey Meter Pocket Dosimeter Radiation Alarm Radiation Badge
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Evaluation What is X-Ray?What are the main use of X-Ray?What are the harmful effect of X-Ray? What is roentgen?
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Home Work
How will you utilize this knowledge in your practical life by learning X– Ray? Explain in detail.
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THAN
KS TO
ALL
ধন্যবাদ সবাই কে
THAN
KS T
O
ALL