PCB272 Radiation Physics


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Unit Outline: Semester 1 2024, Gardens Point, Internal

Unit code:PCB272
Credit points:12
Assumed Knowledge:

Senior Maths B and Senior Physics are assumed knowledge.

Coordinator:Andrew Fielding | a.fielding@qut.edu.au
Disclaimer - Offer of some units is subject to viability, and information in these Unit Outlines is subject to change prior to commencement of the teaching period.

Overview

Radiographers require a basic knowledge of general physics and more detailed theoretical background to the physical basis behind the equipment design, construction and materials and the increasing technological support for developing modalities. The aim of this unit is to provide you with an understanding of radiation physics related to x-ray production and radiographic practice and how radiation interacts with matter. You will learn about the basic physics of radiation and radioactivity, interaction of radiation with matter, radiation safety and the physics underpinning X-ray imaging. You will also acquire the basic knowledge of the physical principles of X-ray imaging and radiotherapy systems.

Learning Outcomes

On successful completion of this unit you will be able to:

  1. Explain the physical basis for the production of ionising radiation, and to describe the properties of ionising radiation which affect its behaviour in diagnostic imaging and therapeutic uses.
  2. Discuss how x-rays are generated, the design construction and materials used in the x-ray tube and high voltage generators.
    Relates to: MRPPC2020: Domain 1C, 1C.4a
  3. Describe the operation of radiotherapy x-ray tubes
    Relates to: MRPPC2020: Domain 1C, 1C.4a
  4. Manipulate equations and apply formulae to solve physics problems.

Content

Atomic structure, radioactivity, interaction of x-rays with matter.

Radiation dosimetry, radiation units, radiation detection.

X-rays - properties and nature.

X-ray tube construction and design. Diagnostic and therapy tubes.

High voltage generation, transformers, rectifiers, linear accelerators.

Ratings of x-ray tube, tube failure.

Learning Approaches

Online and/or face to face lectures will provide the knowledge base required for this unit and will be supported by online or face to face tutorials enabling you to apply the theory described in lectures.

Practical Experiences. Students will be carry out experiments involving radioactive decay, attenuation of ionising radiations,  and electrical transformer behaviour.

Online Interactive Sessions: 1 x 2 hours per week
Practical experiences: 1  practical experience per week for 4 weeks

 

Feedback on Learning and Assessment

Feedback will be provided to students verbally and in written form, Further consultation is available on request.

Assessment

Overview

You will be expected to undertake a number of assessments related to the learning outcomes of this unit (see below).

Unit Grading Scheme

7- point scale

Assessment Tasks

Assessment: Practical experiences

(Formative and summative) - Practical exercises conducted in the laboratory.

 

Weight: 20
Individual/Group: Individual
Due (indicative): Progressive
Related Unit learning outcomes: 1, 4

Assessment: Weekly Problem Solving Tasks

(Formative and summative) - Weekly online problem solving tasks

This is an assignment for the purposes of an extension.

Weight: 30
Individual/Group: Individual
Due (indicative): See Canvas Site
Related Unit learning outcomes: 1, 2, 3, 4

Assessment: Final Examination

(Summative) - Theory examination.

Weight: 50
Length: 2 hours
Individual/Group: Individual
Due (indicative): End of Semester
Related Unit learning outcomes: 1, 2, 3, 4

Academic Integrity

Students are expected to engage in learning and assessment at QUT with honesty, transparency and fairness. Maintaining academic integrity means upholding these principles and demonstrating valuable professional capabilities based on ethical foundations.

Failure to maintain academic integrity can take many forms. It includes cheating in examinations, plagiarism, self-plagiarism, collusion, and submitting an assessment item completed by another person (e.g. contract cheating). It can also include providing your assessment to another entity, such as to a person or website.

You are encouraged to make use of QUT’s learning support services, resources and tools to assure the academic integrity of your assessment. This includes the use of text matching software that may be available to assist with self-assessing your academic integrity as part of the assessment submission process.

Further details of QUT’s approach to academic integrity are outlined in the Academic integrity policy and the Student Code of Conduct. Breaching QUT’s Academic integrity policy is regarded as student misconduct and can lead to the imposition of penalties ranging from a grade reduction to exclusion from QUT.

Resources

Resource Materials

Prescribed text(s)

Bushong SJ (2009) Radiological Science for Technologists, 9th Edition, Mosby

Reference book(s)

Bushberg JT et al (2002) The Essential Physics of Medical Imaging, 2nd edition, Williams and Wilkins

Risk Assessment Statement

Attention will be drawn to relevant workplace health and safety issues in lectures and practicals. Laboratory safety rules will be published on the first year physics laboratory website. There are no other out of the ordinary risks associated with this unit.

Standards/Competencies

This unit is designed to support your development of the following standards\competencies.

MRPBA Professional Capabilities 2020

Domain 1C: Radiation therapist


  1. Relates to: ULO1

  2. Relates to: ULO2, ULO3

Domain 5: Radiation safety and risk manager


  1. Relates to: ULO1

Course Learning Outcomes

This unit is designed to support your development of the following course/study area learning outcomes.

CS49 Bachelor of Radiation Therapy

  1. Principles and applications of radiation therapy
    Relates to: Practical experiences, Weekly Problem Solving Tasks, Final Examination
  2. Physical Sciences
    Relates to: Practical experiences, Weekly Problem Solving Tasks, Final Examination
  3. Clinical decision making
    Relates to: Practical experiences
  4. Critical thinking (analyse, interpret, evaluate)
    Relates to: Weekly Problem Solving Tasks
  5. Radiation safety and quality
    Relates to: Weekly Problem Solving Tasks

CS50 Bachelor of Radiation Therapy (Honours)

  1. Physical Sciences
    Relates to: Practical experiences, Weekly Problem Solving Tasks, Final Examination