Causality 39: Therac-25

23 March, 2021

CURRENT

The successor to the Therac-6 and Therac-20 RadioTherapy machines would integrate the powerful DEC PDP-11 mini-computer to control all of the Therac-25s functions, including the safety interlocks, for the first time. In two years the 11 machines in service would overdose six people across two countries, killing three of them before they figured out why.
Duration 53 minutes and 10 seconds Direct Download

Show Notes

This show is Podcasting 2.0 Enhanced

Reports into the Incidents:

Links of Potential Interest:


Episode Gold Producers: 'r' and Chip Salzenberg.
Episode Silver Producers: Mitch Biegler, John Whitlow, Kevin Koch, Oliver Steele, Lesley Law Chan, Hafthor and Shane O'Neill.
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People


John Chidgey

John Chidgey

John is an Electrical, Instrumentation and Control Systems Engineer, software developer, podcaster, vocal actor and runs TechDistortion and the Engineered Network. John is a Chartered Professional Engineer in both Electrical Engineering and Information, Telecommunications and Electronics Engineering (ITEE) and a semi-regular conference speaker.

John has produced and appeared on many podcasts including Pragmatic and Causality and is available for hire for Vocal Acting or advertising. He has experience and interest in HMI Design, Alarm Management, Cyber-security and Root Cause Analysis.

Described as the David Attenborough of disasters, and a Dreamy Narrator with Great Pipes by the Podfather Adam Curry.

You can find him on the Fediverse and on Twitter.