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Unit of study_

MRTY1031: Medical Radiation Physics

Semester 1, 2020 [Normal day] - Camperdown/Darlington, Sydney

MRTY1031 is a Junior level unit designed specifically for students enrolled in the Bachelor of Applied Science (MRS) Diagnostic Radiography. It provides a basic knowledge and understanding of concepts in physics relevant to the use of ionising radiation in medicine - specifically X-rays. It presents an examination of the structure of matter, types of ionising radiation and their interactions with matter, all within the context of medical imaging and therapy.

Unit details and rules

Unit code MRTY1031
Academic unit Physics Academic Operations
Credit points 6
Prohibitions
? 
None
Prerequisites
? 
None
Corequisites
? 
None
Assumed knowledge
? 

HSC Physics and HSC Mathematics

Available to study abroad and exchange students

Yes

Teaching staff

Coordinator John O'Byrne, john.obyrne@sydney.edu.au
Lecturer(s) John O'Byrne, john.obyrne@sydney.edu.au
Will Rae, will.rae@sydney.edu.au
Type Description Weight Due Length
Small test Online Mid-semester test
Online Mid-semester test
20% -
Due date: 03 Apr 2020 at 13:00
45 mins + setup
Outcomes assessed: LO1 LO7 LO5 LO2
Final exam Online Final examination
Online Final examination
60% Formal exam period 2 hours
Outcomes assessed: LO1 LO7 LO5 LO2
Assignment hurdle task Assignment 1
Short answer assignment
5% Week 06 4-6 pages
Outcomes assessed: LO1 LO2 LO4 LO5 LO7
Assignment hurdle task Assignment 2
Short answer assignment
5% Week 10 4-6 pages
Outcomes assessed: LO1 LO2 LO4 LO5 LO7
Assignment Capstone assessment
Short answer assignment
10% Week 13 4-6 pages
Outcomes assessed: LO1 LO2 LO3 LO4 LO5 LO7
Tutorial quiz hurdle task Pre-lecture quizzes
Brief quizzes on lecture material
0% Weekly Typically ~5 MCQs
Outcomes assessed: LO1 LO7
Assignment hurdle task Studio lab sessions
Summary of results from different components
0% Weekly 2 hours
Outcomes assessed: LO1 LO7 LO6 LO5 LO3
Assignment hurdle task Workshop tutorials
Submission of worksheets
0% Weekly 1 hour
Outcomes assessed: LO1 LO2 LO5 LO6 LO7
hurdle task = hurdle task ?

Assessment summary

 

Below are brief assessment details. Further information can be found in the Canvas site for this unit.

  • Assignments

There are two assignments, each consisting of several questions. The assignments are designed to help you develop problem-solving skills, practice written answers and obtain some progressive feedback. 

  • Capstone Assessment

This is intended to be a summary assessment to pick an aspect of the studio lab exercises and ask you to look at it in the context of the entire unit. You will asked to answer questions on one part of one studio lab session - the choice will be based on your SID so different students will be doing different parts of different labs. You will also be asked about aspects x-ray image production and image quality, as described in the final lecture module of this unit.

We encourage students to discuss assignments, but we will NOT accept assignments that are simply copied between students or from any other source. You should write your final answers independently, expressing the answers in your own words and with your own working. Allowing your work to be copied is unfair to other students and ultimately, does not help the student copying from your work.

The problem-based assignments typical of this unit are different to more essay-based assignments in other disciplines. References are generally NOT necessary unless you use a direct quote from a source. If you do reference a source, choose any style of referencing you normally use providing it is clear.

  • Pre-lecture Quizzes

Pre-lecture quizzes will consist of several questions delivered on-line using the Canvas system. They are intended to encourage you to prepare for lectures by reading the textbook and any copied notes we supply and test your understanding of material to be covered in the lectures in the coming week. Answers will be apparent from the relevant sections of the reading. You do not need to get every answer right, but only a serious attempt at a quiz will earn credit towards your final grade. To obtain maximum credit you may only miss one quiz (i.e. 10 out of 11 quizzes).

  • Workshop Tutorials

Contributing to Workshop Tutorials is an important part of success in this Unit of Study. We measure your contribution by collecting group answer sheets and assigning an overall grade for your work during the semester. To obtain maximum credit you may only miss one Tutorial (i.e. 8 out of 9 Workshop Tutorials).

  • Studio Lab Sessions

Assessment in the studio lab sessions is based on successful completion of experimental and simulation tasks and other activities conducted in the sessions. You are awarded check points for successfully completing each activity. To obtain maximum credit you may only miss 2 check points out of 18 (e.g. complete 8 out of 9 Studio Labs). Previous experience indicates that this is not too difficult to achieve if you apply yourself during each session. Most students get all 18 check-points.

  • Mid-Semester Test

A 45 minute mid-semester test on unit content from the first lecture module (Where do X-rays come from?) will be held in the studio lab session in Week 6. It is intended to give you experience of exam-style questions in exam conditions and give you some feedback on how your understanding of the course material is developing

  • Final Examination

A two-hour examination covering the material included in the unit of study is held at the end of the semester. You will be asked to write descriptive answers to questions, to explain physical principles and to answer quantitative questions, all aimed at demonstrating your progress in achieving the goals of the unit. An ability to memorise formulae and manipulate them without understanding the associated concepts will not be rewarded. The final exam will cover material from the entire unit, including material tested in the mid-semester test, although the second half of the unit will have a slightly greater emphasis.

See the Sample Exam papers in the Canvas pages for this unit for an accurate indication of the exam structure.

Note that you must bring your own non-programmable calculator to the examination. See the University policy on calculators at https://sydney.edu.au/students/exams/approved-calculators.html

Assessment criteria

The University awards common result grades, set out in the Coursework Policy 2014 (Schedule 1).

As a general guide, a high distinction indicates work of an exceptional standard, a distinction a very high standard, a credit a good standard, and a pass an acceptable standard.

Result name

Mark range

Description

High distinction

85 - 100

Representing complete or close to complete mastery of the material.

Distinction

75 - 84

Representing excellence, but less than complete mastery.

Credit

65 - 74

Representing a creditable performance that goes beyond routine knowledge and understanding, but less than excellence.

Pass

50 - 64

Representing at least routine knowledge and understanding over a spectrum of topics and
important ideas and concepts in the course.

Fail

0 - 49

When you don’t meet the learning outcomes of the unit to a satisfactory standard.

For more information see sydney.edu.au/students/guide-to-grades.

The grading system used in this unit of study is somewhat different from that used in many other units. It is based on setting appropriate standards in different types of assessment. Your final grade will be based principally on your performance in the final exam, the mid-semester test and assignments, including the capstone assessment task. However, ALL assessments are compulsory and have mark standards that must be achieved.  

Your final grade will be based principally on your performance in the two examination-style assessments:

  • final exam (60%)
  • mid-semester test (20%)

and assignments:

  • assignment 1 (5%)
  • assignment 2 (5%)
  • capstone assessment (10%)

The minimum standard to achieve a pass mark in this unit is:

  • examinations + assignments = 50%

In addition you must meet satisfactory standards in the participation assessments:

  • pre-lecture quizzes
  • workshop tutorials
  • studio labs

If you do not meet these standards you may be penalised for each by up to 2% of the total mark.

Standards for achievement in the participation assessments are as follows:

 

 

Quizzes (/11)

Tutorials (/9)

Studio Labs (/18)

Assumed Standard

(no penalty)

10

8

16

Minimum Standard

(2% penalty)

8 or less

7 or less

14 or less

 

For example:

If you did relatively poorly in the mid-semester test (7/20), but much better in the assignments and capstone assessment (16/20) and final exam (53/60), your total mark would be 76. This is a Distinction (DI) standard. However, for this to be your final result, you would also need to achieve the assumed standard in ALL your participation assessments - i.e.

  • satisfactorily participated in at least 10/11 pre-lecture quizzes
  • satisfactorily participated in at least 8/9 tutorials
  • completed at least 16/18 checkpoints in the lab

Most Distinction students will achieve these standards easily as part of their conscientious work during the semester. However, if (for instance) you satisfactorily participated in only 9/11 quizzes, 6/9 tutorials and 14/18 lab checkpoints, you would be penalised by 1 mark for quizzes, 2 marks for tutorials and 2 marks for lab – a total of 5 marks.  Your final result would then drop to 71 CR.

Of course, if you have a valid reason for missing an assessment which is approved via the Special Consideration process, your marks will be adjusted to allow for this.

The way to succeed in this unit is to do well in the various tests and assignments (as always) and to complete most (preferably all) of the participation assessment tasks.

For more information see guide to grades.

Late submission

In accordance with University policy, these penalties apply when written work is submitted after 11:59pm on the due date:

  • Deduction of 5% of the maximum mark for each calendar day after the due date.
  • After ten calendar days late, a mark of zero will be awarded.

This unit has an exception to the standard University policy or supplementary information has been provided by the unit coordinator. This information is displayed below:

As an example, on an assignment given a mark of 7/10, the penalty would be 0.5 marks if submitted up to 24 hours late, resulting in a final mark of 6.5/10. If the assignment is submitted 6 days late, the penalty would be 3 marks and the final mark would be 4/10.

Academic integrity

The Current Student website  provides information on academic integrity and the resources available to all students. The University expects students and staff to act ethically and honestly and will treat all allegations of academic integrity breaches seriously.  

We use similarity detection software to detect potential instances of plagiarism or other forms of academic integrity breach. If such matches indicate evidence of plagiarism or other forms of academic integrity breaches, your teacher is required to report your work for further investigation.

You may only use artificial intelligence and writing assistance tools in assessment tasks if you are permitted to by your unit coordinator, and if you do use them, you must also acknowledge this in your work, either in a footnote or an acknowledgement section.

Studiosity is permitted for postgraduate units unless otherwise indicated by the unit coordinator. The use of this service must be acknowledged in your submission.

Simple extensions

If you encounter a problem submitting your work on time, you may be able to apply for an extension of five calendar days through a simple extension.  The application process will be different depending on the type of assessment and extensions cannot be granted for some assessment types like exams.

Special consideration

If exceptional circumstances mean you can’t complete an assessment, you need consideration for a longer period of time, or if you have essential commitments which impact your performance in an assessment, you may be eligible for special consideration or special arrangements.

Special consideration applications will not be affected by a simple extension application.

Using AI responsibly

Co-created with students, AI in Education includes lots of helpful examples of how students use generative AI tools to support their learning. It explains how generative AI works, the different tools available and how to use them responsibly and productively.

WK Topic Learning activity Learning outcomes
Week 01 Lecture 1: Introduction Lecture (2 hr) LO1 LO2 LO4 LO7
Week 02 Lecture 2: Waves and EM Radiation Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 1: Basic Physics, Waves and Electromagnetic Radiation Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 1: Waves Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 03 Lecture 3: Light, Spectral lines and Atomic Structure Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 2: Atomic Structure Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 2: Atoms and spectrum 1 Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 04 Lecture 4: Better Atomic Models and Making X-rays Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 3: Atomic Theory and Spectra Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 3: Atoms and spectrum 2 Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 05 Lecture 5: Forces on Charges Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 4: Charges in Electric Fields Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 4: Charges in E and B-fields Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 06 Lecture 6: More on Magnetism, plus Currents and Electrical Power Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
NO LAB - MID-SEMESTER TEST Studio (1 hr)  
Week 08 Lecture 7: X-rays: from the tube to the body Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 5: Magnetic Fields and Circuits Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 5: Electric circuits Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 09 Lecture 8: X-rays: from the tube to the body Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 6: X-rays tubes and x-ray production Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 6: X-ray scattering Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 10 Lecture 9: X-rays: from the tube to the body Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 7: X-rays in the body – Absorption and scattering Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 7: X-ray attenuation Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 11 Lecture 10: X-ray imaging Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 8: X-ray attenuation Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 8: Imaging Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 12 Lecture 11: X-ray imaging Lecture (2 hr) LO1 LO2 LO4 LO5 LO7
Workshop 9: X-ray imaging Tutorial (1 hr) LO1 LO2 LO4 LO5 LO6 LO7
Studio Lab 9: Image Quality Studio (2 hr) LO1 LO3 LO5 LO6 LO7
Week 13 Lecture 12: X-ray imaging Lecture (2 hr) LO1 LO2 LO4 LO7

Attendance and class requirements

Due to the exceptional circumstances caused by the COVID-19 pandemic, attendance requirements for this unit of study have been amended. Where online tutorials/workshops/virtual laboratories have been scheduled, students should make every effort to attend and participate at the scheduled time. Penalties will not be applied if technical issues, etc. prevent attendance at a specific online class. In that case, students should discuss the problem with the coordinator, and attend another session, if available.

Study commitment

Typically, there is a minimum expectation of 1.5-2 hours of student effort per week per credit point for units of study offered over a full semester. For a 6 credit point unit, this equates to roughly 120-150 hours of student effort in total.

Required readings

All readings for this unit can be accessed on the Library eReserve link available in the Canvas site for this unit.

  • Textbook: Essential Physics for Radiographers, 4th Edition (2008), John Ball, Adrian D. Moore and Steve Turner, Blackwell Publishing.
  • Studio Lab Manual: MRTY1031 Medical Radiation Physics Studio Lab Manual, prepared by the School of Physics.  Laboratory Manuals can be purchased at the University Copy Centre/Publish Partner (https://www.publishpartner.com.au/students) for ~$12 and are also on the Canvas pages for this unit.
  • Recommended References: Radiological Science for Technologists, 10th edn, S C Boshung, Elsevier 2012 (or earlier editions).

For the first module of this unit, Where do X-rays come from?, you may also find it useful to consult current HSC Physics textbooks or one of the current Junior Physics textbooks:

  • College Physics: A Strategic Approach, 3rd edition, Knight, Jones and Field, Pearson Addison Wesley, 2015 (Global Edition).
  • University Physics (with Modern Physics), 14th edition, Hugh D Young and Roger A Freedman, Addison-Wesley, 2016 (International Edition).

Learning outcomes are what students know, understand and are able to do on completion of a unit of study. They are aligned with the University's graduate qualities and are assessed as part of the curriculum.

At the completion of this unit, you should be able to:

  • LO1. understand the key physics concepts related to ionising radiation - the origins and properties of ionising radiation, the production of radiation, particularly in x-ray tubes, the effects of x-rays on tissue, and the use of x-rays in diagnostic imaging
  • LO2. apply these concepts to develop models, and solve qualitative and quantitative problems in the radiographic context
  • LO3. understand the nature of scientific measurement and basic experimental skills in the measurement of physical quantities and the analysis of experimental data
  • LO4. find and analyse information and judge its reliability and significance
  • LO5. communicate scientific information appropriately, both orally and through written work
  • LO6. engage in team and group work for scientific investigations and for the process of learning
  • LO7. demonstrate a sense of responsibility, ethical behaviour and independence as a learner and as a scientist.

Graduate qualities

The graduate qualities are the qualities and skills that all University of Sydney graduates must demonstrate on successful completion of an award course. As a future Sydney graduate, the set of qualities have been designed to equip you for the contemporary world.

GQ1 Depth of disciplinary expertise

Deep disciplinary expertise is the ability to integrate and rigorously apply knowledge, understanding and skills of a recognised discipline defined by scholarly activity, as well as familiarity with evolving practice of the discipline.

GQ2 Critical thinking and problem solving

Critical thinking and problem solving are the questioning of ideas, evidence and assumptions in order to propose and evaluate hypotheses or alternative arguments before formulating a conclusion or a solution to an identified problem.

GQ3 Oral and written communication

Effective communication, in both oral and written form, is the clear exchange of meaning in a manner that is appropriate to audience and context.

GQ4 Information and digital literacy

Information and digital literacy is the ability to locate, interpret, evaluate, manage, adapt, integrate, create and convey information using appropriate resources, tools and strategies.

GQ5 Inventiveness

Generating novel ideas and solutions.

GQ6 Cultural competence

Cultural Competence is the ability to actively, ethically, respectfully, and successfully engage across and between cultures. In the Australian context, this includes and celebrates Aboriginal and Torres Strait Islander cultures, knowledge systems, and a mature understanding of contemporary issues.

GQ7 Interdisciplinary effectiveness

Interdisciplinary effectiveness is the integration and synthesis of multiple viewpoints and practices, working effectively across disciplinary boundaries.

GQ8 Integrated professional, ethical, and personal identity

An integrated professional, ethical and personal identity is understanding the interaction between one’s personal and professional selves in an ethical context.

GQ9 Influence

Engaging others in a process, idea or vision.

Outcome map

Learning outcomes Graduate qualities
GQ1 GQ2 GQ3 GQ4 GQ5 GQ6 GQ7 GQ8 GQ9

This section outlines changes made to this unit following staff and student reviews.

We welcome comments on all aspects of this unit. You should feel free to talk to your lecturers, tutors or the Unit Coordinator A/Prof. John O’Byrne at any time. There is also a formal opportunity for feedback via the USS questionnaire for this unit, available online towards the end of semester. As a result of student feedback and other initiatives there have been a number of changes in this unit recent years. The 'capstone' assessment has been introduced to look at an aspect of the studio labs in the context of the entire unit, in place of a regular assignment. This was accompanied by a reduction in the weighting of the final exam. This year we have also adjusted the balance of assignment marks slightly and changed the way in which engagement in Pre-lecture Quizzes, Workshop Tutorials and Studio Labs is counted towards your final mark, with the aim of making it easier to understand.

Equity Access and Diversity statement

The School of Physics recognises that biases and discrimination, including but not limited to those based on gender, race, sexual orientation, gender identity, religion and age, continue to impact parts of our community disproportionately. Consequently, the School is strongly committed to taking effective steps to make our environment supportive and inclusive and one that provides equity of access and opportunity for everyone.

The School has three Equity Officers as a point of contact for students and staff who may have a query or concern about any issues relating to equity, access and diversity.  If you feel you have been treated unfairly, discriminated against, bullied or disadvantaged in any way, you are encouraged to talk to one of the Equity Officers or any member of the Physics staff. 

More information can be found at https://sydney.edu.au/science/schools/school-of-physics/equity-access-diversity.html

Any student who feels they may need a special accommodation based on the impact of a disability should contact Disability Services: https://sydney.edu.au/study/why-choose-sydney/student-support/disability-support.html who can help arrange support.

Disclaimer

The University reserves the right to amend units of study or no longer offer certain units, including where there are low enrolment numbers.

To help you understand common terms that we use at the University, we offer an online glossary.