Presentation
BTEC Applied Science Level 3 Unit 21 Medical Physics Applications Learning Aim A & B
- Institution
- PEARSON (PEARSON)
BTEC Applied Science Level 3 Unit 21 Medical Physics Applications Learning Aim A & B
[Show more]
Content preview
Unit21: medicalphysics
applications
MAHDI NOORI
,Non ionising radiation
Non ionising radiation is a type of electromagnetic radiation that
does not have enough energy to remove any electron from an
atom or molecule.
Why – non-ionisng radiation us used extensively in health care in
applications to help health care professional to diagnose and
treatment the bad conditions of the body, for example,
ultrasound imaging, laser surgery, and UV light treatments;
magnetic resonance imaging and transcranial magnetic
stimulation for depression therapy.
TWO examples of non ionsing radiation that help with medical
diagnosis and treatment are ultrasound and MRI.
,Ultrasound
, Principle
Ultrasound works on two primary principles.
The piezoelectric effect, in which ultrasonic is generated by crystals
in the transducer, is the first principle. The crystals in the
transducer begin to vibrate and distort once an electric current
flows via a cable. The ultrasonic beam is created by the vibration of
these crystals. This means that the frequency of the ultrasonic
beam is predetermined by the crystals.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller MikasaAckerman. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £10.66. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52928 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now