On 06/01/2018 15:31, The Natural Philosopher wrote:
IIRC they were originally designed to be suitable for landfill, your
local tip *might* prefer them to go into the "electronics" bin.
They contain just under a microcurie of Americium 241. That gives over
30,000 decays per second, but being alpha particles won't set off an
ordinary geiger counter because of the way it is packaged.
Wouldn't recommend swallowing one, but you would need 70,000 to do a
Litvinenko. Not actually any real threat in "dirty bombs" but I bet GCHQ
On Sat, 6 Jan 2018 07:24:16 -0800 (PST), George Miles
I took some to our local recycling centre and threw them into the
general rubbish bin. A few minutes later I saw one of the staff
hauling them out again. I assumed it was because of the radioactive
source in them and they would be dealt with specially, but apparently
they come under WEEE regulations, so chuck them in the 'small
electrical items' skip.
If they are the ones based on radioactive isotopes I believe you need to be
careful to make sure they get given to the right place.
If they use some other technology then its normally the council electrical
folk who send them for recycling.
I remember there was a bit of a stink when people dumped their old dial
trimfones. as the back lit figures were based on a beta lite ie a
radioactive gas in a sealed tube with a phosphor which the beta particles
stimulated and as the electron changed charge a pulse or photon was
emitted giving that eerie light. Brian
This newsgroup posting comes to you directly from...
Quite a lot of old Trimphones were dumped in a skip on the Harwell site,
which got them a fine.
An audio specialist once claimed that the distinctive "Warble tone" was
perfectly optimised to make it difficult to locate.
On Saturday, 6 January 2018 17:35:46 UTC, newshound wrote:
it sounded exactly the same as a certain bird. Predictable results.
David Hahn had a use for smoke alarms, but I wouldn't recommend that. free.uk.diy.nuclear-device may have more info, this group doesn't really extend to nuclear diy. AFAIK!
The authorities make an exception for home radioactive smoke alarms, otherwise you need nuclear certification even to move one across the room.
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