How Were Nuclear Detonation Triggers Designed to Prevent Accidental Explosions?

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Discussion Overview

The discussion revolves around the design and functionality of nuclear detonation triggers, specifically focusing on how these systems were engineered to prevent accidental explosions during the numerous tests conducted between 1945 and 1970. The conversation touches on the technical aspects of triggering devices and their operational safety mechanisms.

Discussion Character

  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant notes the importance of simultaneous detonation in implosion designs, suggesting that if detonators do not activate at the same time, the nuclear reaction may fail.
  • Another participant mentions the use of cables in the Trinity device to ensure concurrent power delivery to each detonator, highlighting the role of a switch called a krytron in this process.
  • Concerns are raised about accidental detonations, with one participant drawing parallels to complex systems like rocket launching systems that utilize interlocks to prevent unintended activation.
  • Requests for illustrations or schematics of the interlock systems are made, indicating a desire for visual aids to better understand the mechanisms involved.
  • A participant responds that while no illustrations are available, they draw comparisons to practices in mining and demolition, where charges are not connected to firing devices until safety is ensured.

Areas of Agreement / Disagreement

The discussion does not reach a consensus on the specifics of the interlock systems used in nuclear detonations, and multiple viewpoints regarding safety mechanisms and their applications in other fields remain present.

Contextual Notes

Participants express uncertainty regarding the availability of detailed schematics and the specific workings of interlock systems, indicating a lack of accessible information on these technical aspects.

fanieh
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I just watched the documentary Trinity and Beyond where it showed footages of nuclear detonations. There were over 300 such tests between 1945 and 1970. Why didn't any accidental nuclear detonations occur in those tests. What kind of triggering device did they use to make the nukes explode? I don't think it is simply touching two wires together. But in those times.. there were no computer codes either. So how did the triggering button or signal work?
 
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The challenge in any implosion design is to get all elements to go off simultaneously. If they don't, things fizzle.
If you look further, there are photos of the Trinity device festooned in cables prior to detonation. Those cables were to provide power to each detonator concurrently. There is an essential switch, called a krytron, which ensures simultaneous power to all.
 
fanieh said:
Why didn't any accidental nuclear detonations occur in those tests.
Such complex systems, including rocket launching systems, have sets of interlocks to prevent accidental activation.
 
any illustration or schematics of this interlock? this can also be applied to dynamites in mountains...
 
fanieh said:
any illustration or schematics of this interlock?
No.
fanieh said:
this can also be applied to dynamites in mountains...
In mining or excavation, charges are set, but are not attached to firing device until everyone is safely clear of the area. Same in demolition. The devices are well-known to the practitioners in their respective industries.
 

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