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X-ray imaging (A-level only)

MediumHard
12
Question 1

An oncology clinic processes shielding calculations for radioprotection in an X-ray therapy room.

a.

Define the term half-value thickness of a shielding material.

[1]
b.

The half-value thickness of aluminum for a diagnostic X-ray beam is 2.4×10−2 m2.4 \times 10^{-2}\text{ m}2.4×10−2 m.

Calculate the mass attenuation coefficient of aluminum for this beam. State an appropriate unit for your answer.

Density of aluminum = 2.7×103 kg m−32.7 \times 10^3\text{ kg m}^{-3}2.7×103 kg m−3.

[5]
Markscheme

X-ray imaging (A-level only) Questions

  1. A Level
  2. /Physics
  3. /X-ray imaging (A-level only)

5 exam-style questions on AQA A Level Physics X-ray imaging (A-level only), covering The physics of diagnostic X-rays(A-level only), Image detection and enhancement (A-level only), Absorption of X-rays (A-level only), and CT scanner (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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