How Thick Should a Concrete Wall Be to Safely Shield X-Rays in a Radiology Room?

In summary, the minimum thickness of the concrete wall for the radiation room is calculated by finding the intensity of the x ray beams after passing through the patient. The linear attenuation coefficient is used to determine the required thickness. The exposure and effective energy play a role in determining the intensity of the beam after passing through the patient, and this changes as the distance increases.
  • #1
Millano
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Homework Statement



Calculate minimum thickness of concrete wall of radiation room (2X2X2) such that radiographer doesn't exceed dose limit. Use info below.

X ray reading surface of patient (50 cm from source) = exposure= 4.29 X 10[tex]^{}-4[/tex]

effective energy of x ray beam = 40 kev

40% of x rays are transmitted

does limit =7.5 mGy per anum

linear attenuation coeficent = 1.16 cm

scattered radiation increases does by 5%

wair/e = 33.97
[tex]\mu[/tex]/[tex]\rho[/tex]=6.83x 10[tex]^{}-5[/tex]

50 x rays taken per day

Homework Equations



intensity =1/d^2

I (X) = I0e µx

exposure X = dq/dm = [tex]\psi[/tex].([tex]\mu[/tex]/[tex]\rho[/tex]).e/wair

The Attempt at a Solution



well, You have to find the intensity(no of photons)/radiation of the x ray beams after passing through the patient. Using this you can calculate the thickness needed using the linear attenutation coefficent.

What I don't get is how the expousre and effective energy relate to the intensity of the beam after passing through the patient and how this changes as the distance increases
 
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Related to How Thick Should a Concrete Wall Be to Safely Shield X-Rays in a Radiology Room?

What is radiation penetration?

Radiation penetration refers to the ability of a type of radiation, such as gamma rays or X-rays, to pass through a material or substance.

What factors affect the penetration of radiation?

The factors that affect the penetration of radiation include the type of radiation, the energy of the radiation, the density and thickness of the material it is passing through, and the atomic number and structure of the material.

What is the difference between high and low penetration radiation?

High penetration radiation, such as gamma rays, have high energy and can penetrate through thick and dense materials. Low penetration radiation, like alpha particles, have lower energy and can only penetrate through thin and less dense materials.

How is the penetration of radiation measured?

The penetration of radiation is measured using different units, such as millimeters of lead, centimeters of concrete, or grams per square centimeter of a specific material. The higher the number, the more penetration the radiation has.

What are some common uses of radiation penetration in science and technology?

Radiation penetration is widely used in various fields, including medical imaging, industrial inspections, and security screenings. It is also used in scientific research to study the structure and composition of materials. In nuclear power plants, radiation penetration is used to monitor and control nuclear reactions.

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