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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Censorship Fail!
I'll probably get in deep merde for posting this, but I would like to see the relevant documents minus the censorship, just out of scientific curiosity.
No doubt submarine reactors are by nature much more likely to fail catastrophically due to the higher core density reducing the safety margins for coolant failure duration, need for longer endurance and more dangerous (i.e. HEU and plutonium) core materials.
It does raise an interesting point, according to some articles a submarine collision could under certain conditions lead to the failsafes not operating as designed, see
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
How hard would it be to incorporate a microminiature Geiger counter into mobile phones?
I can see this being a major selling feature, especially if it also records radiation dosage into the memory even when the phone is "off", with a wake-up feature if some preset threshold is exceeded.
The usefulness of this can be seen if say a few people walk past say a hidden nuclear device, exposed Co-60 source etc on their normal day and their phone counters log this, with the location of said source. Or someone sitting fishing in a boat has one of these and it records the activity of the weapons grade uranium hidden in that yacht on its way to wherever.
As you may or may not know, it is possible to make a device not much bigger than an accelerometer, which uses radio frequency techniques to achieve end window like sensitivity with a fraction of the footprint of a conventional GM tube and power supply. These could easily be made for around $0.50 each in bulk which would add a minimal amount to the cost of a phone. Perhaps even integrate them into microSD cards so your cheap phone can become a radiation counter?
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Conundrum wrote ...
How hard would it be to incorporate a microminiature Geiger counter into mobile phones?
I can see this being a major selling feature, especially if it also records radiation dosage into the memory even when the phone is "off", with a wake-up feature if some preset threshold is exceeded.
The usefulness of this can be seen if say a few people walk past say a hidden nuclear device, exposed Co-60 source etc on their normal day and their phone counters log this, with the location of said source. Or someone sitting fishing in a boat has one of these and it records the activity of the weapons grade uranium hidden in that yacht on its way to wherever.
As you may or may not know, it is possible to make a device not much bigger than an accelerometer, which uses radio frequency techniques to achieve end window like sensitivity with a fraction of the footprint of a conventional GM tube and power supply. These could easily be made for around $0.50 each in bulk which would add a minimal amount to the cost of a phone. Perhaps even integrate them into microSD cards so your cheap phone can become a radiation counter?
-A
Whoa! You have an idea there!!! "Distributed detection" throughout society, I demand a prototype!
This could be a better way to stop a pakistan's "loose nuke" problem, rather then just a single sophisticated border device. Even if each device is less capable then a true detector. And obviously accidental release like churnoble/fukushima.
Registered Member #3610
Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506
I don't see much point in that. You'd either have people freaking out left and right over background radiation, or it wouldn't be sensitive enough to be useful. Not only that, but GM tubes only count events, they do not tell you anything about the energy of the radiation, something that an ion chamber is much better for.
Instruments are only as useful as the skill of their operator allows. I don't think the vast majority of the population would know how to interpret the data presented by a geiger counter or ionization chamber.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
James wrote ...
Instruments are only as useful as the skill of their operator allows. I don't think the vast majority of the population would know how to interpret the data presented by a geiger counter or ionization chamber.
I do agree, and have been pondering this point. i guess a distributed system would have to be professionally deployed and operated.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
There was some debate as to whether the 2 of 3 exposed workers were "burned" from "Hot water" (temp) or "Hot water" (radiation), well look here :
From IAEA:
For two of the three workers, significant skin contamination over their legs was confirmed. The Japanese authorities have stated that during medical examinations carried out at the National Institute of Radiological Sciences in the Chiba Prefecture, the level of local exposure to the workers' legs was estimated to be between 2 and 6 sieverts.
While the patients did not require medical treatment, doctors decided to keep them in hospital and monitor their progress over coming days.
There were workers who spent less than a few minutes right in and next to the fully exploded and glowing reactor at chernobyl... Who are still alive today. But 6 Sieverts to the legs, yikes. There will be long term health consequences at the very least.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Nicko wrote ...
Long term health consequence likely to be an early death...
Well I think the benchmarks on wiki were meant for whole body exposure to photon radiation. But these workers were contaminated with physical elemental radiation, I would expect a shortened life none the less, yet nothing about that has been said... I guess its that stoic japanese thing.
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Nuclear events taking place in Japan.
