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MEDI12008 - Foundations of Radiation Science

General Information

Unit Synopsis

This unit will provide you with the foundational science knowledge needed for future study of the safe and effective use of x-ray imaging equipment and production of diagnostic radiography images. You will learn the theoretical concepts of radiation production and control, radiation interactions in matter, and basics of digital radiographic image recording and processing. This learning will be underpinned by a study of core physics concepts. You will learn how and why to limit radiation exposure through the study of radiation bioeffects and best practices in radiation protection.

Details

Level Undergraduate
Unit Level 2
Credit Points 6
Student Contribution Band 2
Fraction of Full-Time Student Load 0.125
Pre-requisites or Co-requisites Enrolment in CB77

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).

Class Timetable View Unit Timetable
Residential School No Residential School

Unit Availabilities from Term 1 - 2020

Term 2 - 2020 Profile
Brisbane
Mackay
Melbourne
Sydney
Term 2 - 2021 Profile
Brisbane
Mackay
Melbourne
Sydney

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).

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.

Assessment Tasks

Assessment Task Weighting
1. On-campus Activity 0%
2. Report 30%
3. In-class Test(s) 20%
4. Examination 50%

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

Past Exams

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Previous Feedback

No previous feedback available

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.

Source: Unit coordinator reflections and student feedback.
Feedback
As the lab equipment was quite different across the three campuses and there was some variation in how the instructions were interpreted, the resultant images varied in appearance and quality across the groups. While this did not affect assignment scores, it did impact how the images could be used for the assignment.
Recommendation
Modify the instructions as needed to accommodate the differences in available equipment at each campus, and clarify with lab supervisors the process and expected outcomes for each lab segment.
Action Taken
The lab instructions were re-built for 2019 to ensure that all tasks could be carried out at the lab facilities for all campuses. The use of 'native' medical imaging file formats along with the use of medical imaging viewing software enabled improved visualisation of image information relative to last year's use of jpeg file format.
Source: Student correspondence with unit coordinator
Feedback
The lab activities were intended to include the students obtaining their lab image files directly after their labs. At one campus, some lab groups did not receive all of their images even after extensive delays.
Recommendation
Ensure that all lab supervisors are able to retrieve lab images from the imaging system and that all students are aware of their need to obtain their images during the sessions.
Action Taken
The process for acquiring the lab image files was changed this year to ensure that all images were retrieved. Each group's images were made available using two options (downloading or via a web-based repository). Explanations of use of the viewing technology were provided.
Source: Student feedback, unit coordinator observations.
Feedback
A key term in the assignment instructions was not clearly understood by students. The report template was useful but students required further guidance in how to complete it.
Recommendation
Provide a more detailed guidance sheet to accompany the report template and offer a clarification session earlier in the term relative to the assignment due date.
Action Taken
The report template was revised and a detailed guidance sheet was provided. A videoconferenced Q&A session about the report was held two weeks prior to the report due date.
Source: Student informal comments during the term, instructional team feedback
Feedback
Student attendance at on-campus tutorials continues to be low (about 30% on average). The inclusion of a weekly videoconferenced (Zoom) tutorial is useful, particularly with the recording.
Recommendation
Continue to offer weekly tutorials, particularly in online format.
Action Taken
Weekly tutorials were provided both on campus and via videoconferencing.
Source: Student feedback and unit coordinator reflection
Feedback
Students were unsure of the volume of responses expected in the written report as there were no word count guidelines.
Recommendation
Review the report template requirements and provide additional clarity of expectations in the guidance document for completing the written report.
Action Taken
Nil.
Source: Unit coordinator reflection.
Feedback
The process of scoring the written report and providing detailed comments was not efficient, resulting in delayed return of marked reports.
Recommendation
Re-build the scoring sheet and feedback documentation process for the written report in order to enable increased efficiency in providing useful feedback.
Action Taken
Nil.
Source: Student feedback and lab instructional team reflections
Feedback
For some student groups, a significant portion of the lab time was spent in interpreting the lab instructions. For labs that were not led by the unit coordinator, there was some variation in that interpretation.
Recommendation
Provide photos and/or brief videos to illustrate equipment set-ups.
Action Taken
Nil.
Source: Unit coordinator reflection
Feedback
While basic concepts of image appearances and terms for describing those appearances were introduced in Week 1, the skill development was not effectively scaffolded during the term. This impacted students' performance in discussing their lab images in the written report.
Recommendation
Provide additional guidance in image viewing and image appearance description through either tutorial activities or instructional videos.
Action Taken
Nil.
Source: Student feedback
Feedback
Students appreciated the lecture recordings, which were comprehensive in scope, clearly presented and provided as multiple short videos each week.
Recommendation
Maintain the mini-lecture format of the lecture videos.
Action Taken
Nil.
Unit learning Outcomes

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

  1. Discuss the underlying physical principles of and the controls involved in x-ray beam production, emission, interactions in matter and capture at the image receptor
  2. Outline the basic construction and operation of x-ray units and digital radiographic image acquisition systems
  3. Discuss fundamental attributes of radiographic image appearances such as visibility, brightness, contrast, unsharpness, and distortion
  4. Relate the concepts of beam control, differential attenuation, and scatter control to the production and appearances of a projection radiograph
  5. Relate core concepts of bioeffects of low-level ionising radiation and current scientific theories of radiation risk to radiation protection practices in radiography.

This unit supports students in the attainment of the following Competency Standards of the Council on Chiropractic Education Australasia:

1.1 Complies with legal and ethical requirements

  • Adheres to relevant legislation, common law, codes, standards and other policy regulating chiropractic conduct and practice

1.4 Demonstrates professional integrity

  • Applies principles of risk management and quality improvement to practice

3.3 Obtains the results of clinical, laboratory and other diagnostic procedures necessary to inform care

  • Refers for or conducts imaging where clinically indicated

3.5 Critically analyses information available to generate a clinical impression

  • Demonstrates knowledge of diagnostic imaging techniques and procedures, including indications and limitations of available imaging modalities

Alignment of Assessment Tasks to Learning Outcomes
Assessment Tasks Learning Outcomes
1 2 3 4 5
1 - On-campus Activity
2 - Report
3 - In-class Test(s)
4 - Examination
Alignment of Graduate Attributes to Learning Outcomes
Introductory Level
Intermediate Level
Graduate Level
Graduate Attributes Learning Outcomes
1 2 3 4 5
1 - Communication
2 - Problem Solving
6 - Information Technology Competence
8 - Ethical practice
Alignment of Assessment Tasks to Graduate Attributes
Introductory Level
Intermediate Level
Graduate Level
Assessment Tasks Graduate Attributes
1 2 3 4 5 6 7 8 9
2 - Report
3 - In-class Test(s)
4 - Examination
1 - On-campus Activity