Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

Loading…
Transcript

Debrief

Benefits of Radiation

  • Safety precautions undermined
  • Cutbacks on proper equipment
  • Reliance on new technology
  • Radiation has many benefits
  • Radiation should be used safely

RADIATION = HAZARD

USE WITH CAUTION

  • Medical Imaging
  • Cancer Treatment
  • Research and Industrial Applications
  • Food Sterilization
  • Consumer Products
  • Safety and Security
  • Spacecraft Power Supply
  • Electric Power Generation

The Therac-25 Incidents

What Happened?

  • Therac-25 released in 1983 by AECL
  • Katy Yarbrough overdosed with 20,000 rads
  • AECL identifies turntable faulty, adds coding
  • Overdose incidents persist despite fix
  • Physicist Dr. Fritz Hager recreates error message
  • FDA declares Therac-25 defective, demands action plan
  • Multiple lawsuits lead to closure of medical department

HUMAN ERROR

Radiation Therapy

Radiation Saved My Grandpa

  • Diagnosed at 26
  • Hodgkin's Lymphoma Cancer
  • Surgery + Radiotherapy
  • Full remission

Radiation Therapy Benefits

  • Cancer treatment that targets the tumor
  • Radiation kills cancer cells more than normal cells
  • Can be standalone or paired with other treatments
  • Cost-effective
  • Painless treatment option

HUMAN ERROR

  • Therac-25 software coded by one person
  • Absence of hardware fail-safes
  • AECL reluctant to investigate early complaints
  • Too late testing for software errors

Why

fear

JCO Nuclear Criticality Accident

Unraveling the Myths

HUMAN ERROR

  • Stainless steel buckets used instead of safety-designed vessels
  • JCO neglects safety due to financial troubles
  • Illegal procedures since at least 1996
  • Workers unable to recognize meaning of the blue light
  • Lack of education contributed to severity of situation

What Happened?

  • September 30, 1999
  • Enriched uranium overdose causes critical mass
  • Two workers suffer acute radiation sickness
  • Paramedics unaware, receive radiation exposure

RADIATION ?

X-Ray Benefits

  • Uses radiation for medical imaging
  • Invented by William Conrad Röntgen in 1895
  • Less invasive than previous methods
  • Offers reliable and accurate examinations
  • Was cost efficient
  • Became widely used and accepted

Why Can Radiation Seem Scary?

X-Ray

Machine

The Fukushima Daiichi Nuclear Powerplant Accident

What Is Radiation?

  • "Deadly Force" (Lee)
  • Atomic Bomb
  • Radiation Poisoning
  • Disasters

X RAYS -

Medical Imaging, Nanotech, and Industrial Testing

GAMMA RAYS -

Radiotherapy, PET, and Sterilization

Lee, Bill.

“We’re All Radioactive – so Let’s Stop Being Afraid of It.” Bangor University, 11 Feb. 2022, www.bangor.ac.uk/news/2022-02-11-were-all-radioactive-so-lets-stop-being-afraid-of-it. Accessed 7 Apr. 2024.

ELECTRON BEAMS -

Radiotherapy, Environmental Clean-up, and Power Generation

What Happened?

  • March 11, 2011
  • Triggered by earthquake and tsunami
  • Three reactors meltdown
  • Contaminated environment, ocean, and coastal areas

HUMAN ERROR

  • Lacked protection from disasters
  • No contingency plan
  • Collapse of chain of command
  • No leadership or responsibility
  • Delayed crisis management
Learn more about creating dynamic, engaging presentations with Prezi