CQUniversity Unit Profile
MEDI12001 Radiation Science
Radiation Science
All details in this unit profile for MEDI12001 have been officially approved by CQUniversity and represent a learning partnership between the University and you (our student).
The information will not be changed unless absolutely necessary and any change will be clearly indicated by an approved correction included in the profile.
Corrections

Unit Profile Correction added on 30-03-20

The In-class Test has now been changed to an alternate form of assessment. Further details about this assessment will be made available on the unit Moodle site in due course.

The end of term examination has now been changed to an alternate form of assessment. Further details about the assessment will be made available on Moodle in due course.

General Information

Overview

This unit prepares you for the safe and effective use of ionising radiation for radiographic imaging in the simulated and clinical environment. The unit covers production and control of the radiation beam, radiation interactions in matter and risk of detriment to the human body from exposure to radiation. Radiation safety and dose minimisation practices are examined in light of current findings on detriment from low level radiation.

Details

Career Level: Undergraduate
Unit Level: Level 2
Credit Points: 6
Student Contribution Band: 8
Fraction of Full-Time Student Load: 0.125

Pre-requisites or Co-requisites

Pre-requisites: MEDI11001 Fundamentals of the Imaging Professions MEDI11002 Physics for Health Science ESSC11004 Study and Research Skills for Health Sciences

Important note: Students enrolled in a subsequent unit who failed their pre-requisite unit, should drop the subsequent unit before the census date or within 10 working days of Fail grade notification. Students who do not drop the unit in this timeframe cannot later drop the unit without academic and financial liability. See details in the Assessment Policy and Procedure (Higher Education Coursework).

Offerings For Term 1 - 2020

Mackay

Attendance Requirements

All on-campus students are expected to attend scheduled classes – in some units, these classes are identified as a mandatory (pass/fail) component and attendance is compulsory. International students, on a student visa, must maintain a full time study load and meet both attendance and academic progress requirements in each study period (satisfactory attendance for International students is defined as maintaining at least an 80% attendance record).

Class and Assessment Overview

Recommended Student Time Commitment

Each 6-credit Undergraduate unit at CQUniversity requires an overall time commitment of an average of 12.5 hours of study per week, making a total of 150 hours for the unit.

Class Timetable

Bundaberg, Cairns, Emerald, Gladstone, Mackay, Rockhampton, Townsville
Adelaide, Brisbane, Melbourne, Perth, Sydney

Assessment Overview

1. In-class Test(s)
Weighting: 40%
2. Examination
Weighting: 60%

Assessment Grading

This is a graded unit: your overall grade will be calculated from the marks or grades for each assessment task, based on the relative weightings shown in the table above. You must obtain an overall mark for the unit of at least 50%, or an overall grade of ‘pass’ in order to pass the unit. If any ‘pass/fail’ tasks are shown in the table above they must also be completed successfully (‘pass’ grade). You must also meet any minimum mark requirements specified for a particular assessment task, as detailed in the ‘assessment task’ section (note that in some instances, the minimum mark for a task may be greater than 50%). Consult the University’s Grades and Results Policy for more details of interim results and final grades.

Previous Student Feedback

Feedback, Recommendations and Responses

Every unit is reviewed for enhancement each year. At the most recent review, the following staff and student feedback items were identified and recommendations were made.

Feedback from Have your say Student evaluation Unit coordinator self-reflection

Feedback

Delivery format is working well and is suiting student learning styles.

Recommendation

Maintain the unit delivery of lecture followed by tutorial few days later to consolidate the content. Pre-recorded portion was effective in supporting the delivery of the content in the unit.

Feedback from Have your say Student evaluation

Feedback

Some students have suggested for the face-to-face lecture session to be recorded to support them in note taking and revision later on.

Recommendation

Investigate the option of offering recordings of face-to-face lecture sessions in future deliveries.

Unit Learning Outcomes
On successful completion of this unit, you will be able to:
  1. Discuss the design, structure and operation of the x-ray tube in the production of x-radiation
  2. Discuss the use of technical parameters, filters and collimation to control the useful x-ray beam's contents and dimensions
  3. Apply underlying physical concepts in discussing the processes of x-ray photon production, x-ray interactions with matter and differential attenuation, in explaining the factors that affect each and in explaining the various metrics of radiation quantity and risk
  4. Discuss current scientific understanding of the bioeffects and associated risks of radiation at the levels used in diagnostic radiology to body cells, tissues and systems across the lifespan
  5. Discuss radiation safety regulations and legislation and associated best practice standards as they apply to occupational exposure and safe use of ionising radiation in diagnostic imaging.

This unit links to the following Professional Capabilities for Medical Radiation Practitioners as detailed by the Medical Radiation Practice Board of Australia (effective 1 March 2020):

  • Domain 1A:1 Perform projection radiography examinations in a range of settings (parts a,d)
  • Domain 5:1 Perform and provide safe radiation practice (parts a,b,c,d,f)
  • Domain 5:4 Maintain safety of the workplace and associated environments (a,c,d,e,f,g)

Alignment of Learning Outcomes, Assessment and Graduate Attributes
N/A Level
Introductory Level
Intermediate Level
Graduate Level
Professional Level
Advanced Level

Alignment of Assessment Tasks to Learning Outcomes

Assessment Tasks Learning Outcomes
1 2 3 4 5
1 - In-class Test(s) - 40%
2 - Examination - 60%

Alignment of Graduate Attributes to Learning Outcomes

Graduate Attributes Learning Outcomes
1 2 3 4 5
1 - Communication
2 - Problem Solving
3 - Critical Thinking
4 - Information Literacy
5 - Team Work
6 - Information Technology Competence
7 - Cross Cultural Competence
8 - Ethical practice
9 - Social Innovation

Alignment of Assessment Tasks to Graduate Attributes

Assessment Tasks Graduate Attributes
1 2 3 4 5 6 7 8 9
1 - In-class Test(s) - 40%
2 - Examination - 60%
Textbooks and Resources

Textbooks

Prescribed

Essentials of Radiographic Physics & Imaging 3 (2019)

Authors: James Johnston and Terri Fauber
Elsevier
St. Louis St. Louis , Missouri , USA
ISBN: 9780323566681
Binding: Hardcover

Additional Textbook Information

This textbook is required for multiple second year units: MEDI12001 Radiation Science, MEDI12002 Science & Instrumentation 1 and MEDI12005 Science & Instrumentation 2.  Students may use either the hard copy or e-book version of this text. The e-book version of the text allows both online (web-based) and offline (downloaded copy) access to the book and has no expiry date. It is usable on both computers and tablets (specifically iPads and Android OS). The hardcopy textbook is available through the University Bookshop here: http://bookshop.cqu.edu.au (search on the Unit code). The e-book version of this text can be purchased at the publisher's Vital Source online store.

IT Resources

You will need access to the following IT resources:
  • CQUniversity Student Email
  • Internet
  • Unit Website (Moodle)
Referencing Style

All submissions for this unit must use the referencing style: Harvard (author-date)

For further information, see the Assessment Tasks.

Teaching Contacts
Reshmi Kumar Unit Coordinator
r.d.kumar@cqu.edu.au
Schedule
Week 1 Begin Date: 09 Mar 2020

Module/Topic

X-ray production

  • Review of Physics foundation concepts associated with x-ray production
  • Overview of key internal and external structures (anode and cathode) of the x-ray tube involved in the x-ray production process
  • Heat production at the anode
  • Characteristic radiation production
  • Bremsstrahlung radiation process


Chapter

Essentials of Radiographic Physics & Imaging 3rd edn Chapter 4, Chapter 5 & Chapter 6

  • Refer to Moodle for specific pages and any additional readings

Events and Submissions/Topic


Week 2 Begin Date: 16 Mar 2020

Module/Topic

X-ray spectrum

Expression of radiation quantity

  • Exposure, exposure rate, radioactivity, KERMA, entrance surface dose, dose area product, absorbed dose, equivalent dose, effective dose and tissue weighting

X-ray emission spectrum

  • Impact of exposure time, mAs and kVp on beam spectrum

Chapter

Essentials of Radiographic Physics & Imaging 3rd edn Chapter 6

  • Refer to Moodle for specific pages and any additional readings

Events and Submissions/Topic

Week 3 Begin Date: 23 Mar 2020

Module/Topic

Interaction of x-rays with matter

  • Compton scattering
  • Photoelectric effect
  • Factors affecting probability of interactions of x-ray with matter

Chapter

Essentials of Radiographic Physics & Imaging 3rd edn Chapter 7

  • Refer to Moodle for specific pages and any additional readings

Events and Submissions/Topic

Week 4 Begin Date: 30 Mar 2020

Module/Topic

X-ray beam attenuation

  • Exponential attenuation
  • Anode heel effect (self-filtration)
  • HVL and compensating filters
  • Impact of filtration on beam spectrum

Chapter

Essentials of Radiographic physics 3rd edn Chapter 6

  • Refer to Moodle for specific pages and any additional readings

Events and Submissions/Topic


Week 5 Begin Date: 06 Apr 2020

Module/Topic

Assessment week

Chapter

No new content taught

Events and Submissions/Topic

In-Class Test

Vacation Week Begin Date: 13 Apr 2020

Module/Topic

Break week

Chapter

Events and Submissions/Topic

Week 6 Begin Date: 20 Apr 2020

Module/Topic

Radiosensitivity and radiation risk

  • Radiosensitivity classification of cell and tissue type
  • Physical and biological factors affecting radiation response
  • Stochastic versus deterministic effects
  • radiation dose-response relationships
  • Epidemiological studies to assess risk of radiation detriment
  • Risk models

Chapter

Refer to the unit Moodle site for assigned readings

Events and Submissions/Topic

Week 7 Begin Date: 27 Apr 2020

Module/Topic

Hereditary effects of radiation

  • Review of meiosis and gamete production
  • Radiation effect on different developmental stages of pregnancy
  • Target theory
  • Models of cell survival
  • Cell recovery

Chapter

Refer to the unit Moodle site for assigned readings

Events and Submissions/Topic

Week 8 Begin Date: 04 May 2020

Module/Topic

Radiation effects at cellular level, on the body systems and the body

  • Review of mitosis process
  • In-vitro irradiation of macromolecules (main-chain scission, cross-linking and point lesions)
  • Effects of radiation on DNA
  • Radiolysis of water
  • Direct and indirect effects of radiation


Chapter

Refer to the unit Moodle site for assigned readings

Events and Submissions/Topic

Week 9 Begin Date: 11 May 2020

Module/Topic

Radiation protection

  • Cardinal principles of radiation protection
  • ALARA principle
  • Leakage radiation
  • Radiographic features in modern x-ray imaging systems
  • Design of primary and secondary radiation barriers

Chapter

Refer to the unit Moodle site for assigned readings

Events and Submissions/Topic

Week 10 Begin Date: 18 May 2020

Module/Topic

Radiation dose management - Part 1

  • Radiation detection and management
  • Occupational versus public radiation exposure
  • Managing occupational exposure

Chapter

Refer to the unit Moodle site for assigned readings

Events and Submissions/Topic

Week 11 Begin Date: 25 May 2020

Module/Topic

Radiation dose management - Part 2

  • Reducing unnecessary patient dose
  • Pregnant patients

Chapter

Refer to the unit Moodle site for assigned readings

Events and Submissions/Topic

Week 12 Begin Date: 01 Jun 2020

Module/Topic

Consolidation and revision

Chapter

Events and Submissions/Topic

Review/Exam Week Begin Date: 08 Jun 2020

Module/Topic

Chapter

Events and Submissions/Topic

Exam Week Begin Date: 15 Jun 2020

Module/Topic

Chapter

Events and Submissions/Topic

Term Specific Information

Each week normally includes one hour of lecture and a tutorial. You are expected to spend on average 10 -12 hours of time each week in your study activities for this unit. A suggested budget for weekly study is:

  • 2 hours for attending lectures, watching lecture recordings and taking notes
  • 1.5 - 2 hours for completing assigned readings
  • 0.5 - 1 hour for completing other posted learning activities
  • 2-2.5 hours for creating study notes to meet weekly learning goals using lectures and readings
  • 1-1.5 hours for working on posted tutorial questions in preparation for tutorial
  • 1 hour for participation in tutorial
  • 1-2 hours for preparation and/or revision for in-class tests

Tutorials are interactive sessions where your participation enables you to check your understanding of and your ability to apply the week's concepts and for you to build your skills in response to test questions. Your regular and active participation strongly supports your success in the unit.

Assessment Tasks

1 In-class Test(s)

Assessment Title
In-Class test

Task Description

You will complete an In-class test in Week 5 to demonstrate your ability to apply the concepts and use the terminology from Weeks 1 - 4 of the unit. All questions will be based on the posted weekly learning goals. Question tasks will be of the same types that you will practice in weekly tutorials. These tasks may include analysis of projected diagrams, photographs and/or radiographs, creation of line diagrams to illustrate concepts, explanation and discussions.


This test is a closed-book assessment of 90 minutes duration and will be in written format. You will have a ten minute perusal time prior to the allocated writing time. You will write the test under examination conditions as detailed in the Assessment Procedures. You will submit your test and rough paper at the end of the test period.


This test must be written at the timetabled date and time. As per the assessment Procedures, this task is to be completed during a defined period. There is no opportunity to apply for late penalty. If you arrive late, you may enter the test room up to 30 minutes after the start of the test, however, you will still be required to submit your test at the standard test end time. You will not be allowed entry more than 30 minutes after the test starts. In the absence of an approved extension, you cannot complete this assessment at a later time, and you will receive a mark of zero for the assessment if you have not completed it by the scheduled date and time.


Assessment Due Date

The test is to be written during the designated timetabled session in Week 5.


Return Date to Students

Week 7 Thursday (30 Apr 2020)


Weighting
40%

Assessment Criteria

Question responses will be scored on the following criteria:

  • correct use of terminology
  • correct selection and application of core concepts to the specific content of the question
  • clarity, correctness, relevance and completeness of the response in addressing the question that was asked

The number of marks for each question are allocated based on the depth and breath of the required response, and will be indicated on the test paper.


Referencing Style

Submission
Offline

Learning Outcomes Assessed
  • Discuss the design, structure and operation of the x-ray tube in the production of x-radiation
  • Discuss the use of technical parameters, filters and collimation to control the useful x-ray beam's contents and dimensions
  • Apply underlying physical concepts in discussing the processes of x-ray photon production, x-ray interactions with matter and differential attenuation, in explaining the factors that affect each and in explaining the various metrics of radiation quantity and risk


Graduate Attributes
  • Communication
  • Problem Solving

Examination

Outline
Complete an invigilated examination

Date
During the examination period, at a CQUniversity examination centre

Weighting
60%

Length
180 minutes

Minimum mark or grade
50%

Details
Calculator - non-programmable, no text retrieval, silent only
Dictionary - non-electronic, concise, direct translation only (dictionary must not contain any notes or comments).
Closed Book
Academic Integrity Statement

As a CQUniversity student you are expected to act honestly in all aspects of your academic work.

Any assessable work undertaken or submitted for review or assessment must be your own work. Assessable work is any type of work you do to meet the assessment requirements in the unit, including draft work submitted for review and feedback and final work to be assessed.

When you use the ideas, words or data of others in your assessment, you must thoroughly and clearly acknowledge the source of this information by using the correct referencing style for your unit. Using others’ work without proper acknowledgement may be considered a form of intellectual dishonesty.

Participating honestly, respectfully, responsibly, and fairly in your university study ensures the CQUniversity qualification you earn will be valued as a true indication of your individual academic achievement and will continue to receive the respect and recognition it deserves.

As a student, you are responsible for reading and following CQUniversity’s policies, including the Student Academic Integrity Policy and Procedure. This policy sets out CQUniversity’s expectations of you to act with integrity, examples of academic integrity breaches to avoid, the processes used to address alleged breaches of academic integrity, and potential penalties.

What is a breach of academic integrity?

A breach of academic integrity includes but is not limited to plagiarism, self-plagiarism, collusion, cheating, contract cheating, and academic misconduct. The Student Academic Integrity Policy and Procedure defines what these terms mean and gives examples.

Why is academic integrity important?

A breach of academic integrity may result in one or more penalties, including suspension or even expulsion from the University. It can also have negative implications for student visas and future enrolment at CQUniversity or elsewhere. Students who engage in contract cheating also risk being blackmailed by contract cheating services.

Where can I get assistance?

For academic advice and guidance, the Academic Learning Centre (ALC) can support you in becoming confident in completing assessments with integrity and of high standard.

What can you do to act with integrity?