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Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
mattrg2 wrote ...
you would need an awful lot of am241 to get any neutrons from Be. Much more than 1uC...we are talking 100,000 times that and Be powdered...If you crunch the numbers, youll see. matt
Registered Member #1630
Joined: Sat Aug 09 2008, 11:36AM
Location: Seoul Korea
Posts: 115
DaJJHman wrote ...
mattrg2 wrote ...
you would need an awful lot of am241 to get any neutrons from Be. Much more than 1uC...we are talking 100,000 times that and Be powdered...If you crunch the numbers, youll see. matt
my mistake then...
The patent is online for the alpha voltaic cell. 1uCi of Am241 ~ 1v .. you can make neutrons easily with 1uCi and Be or BeCu alloy.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
this is interesting, using quantum dots to convert some of the alphas into photon bursts, a bit like the way white LED's downconvert blue light into green and red.
Registered Member #1630
Joined: Sat Aug 09 2008, 11:36AM
Location: Seoul Korea
Posts: 115
The cell I was referring to is called the Nucell. It can also be see as a AlphaBeta voltaic cell. it involves an isolated collector (Be) and the bottom is grounded. The differential in the plates cases current flow.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
wow, quantum dot seems pretty cool... though about something like that, but I figured that there would not be enough light to make it work... on the note of the NuCell that seoul provided reference to, it seems to be pretty similar to the concept I have in design (and somewhat in theory)... however, I refuse to use Be (not only for the chance of neutrons, but also it is highly toxic, and I want the most danger in this project to be from the radiation, which is only Alpha and Beta so not too much)...
but when the sites I see reference the potential difference between the electrodes, it means the same difference between, say, copper and zinc in a potato battery, right?
Registered Member #1630
Joined: Sat Aug 09 2008, 11:36AM
Location: Seoul Korea
Posts: 115
DaJJHman wrote ...
wow, quantum dot seems pretty cool... though about something like that, but I figured that there would not be enough light to make it work... on the note of the NuCell that seoul provided reference to, it seems to be pretty similar to the concept I have in design (and somewhat in theory)... however, I refuse to use Be (not only for the chance of neutrons, but also it is highly toxic, and I want the most danger in this project to be from the radiation, which is only Alpha and Beta so not too much)...
but when the sites I see reference the potential difference between the electrodes, it means the same difference between, say, copper and zinc in a potato battery, right?
You'll be suprised what contains Beryllium. Just go golfing. That's right, those driver golf clubs are made of CuBe alloy. In reality the amount of Neutrons from a 1uCi source of Am241 is miniscule, still I would surround the battery in water for safety as any neutron will get slowed down by the hydrogen.
Anyways.. right, neutrons are highly penetrating and they have a tendancy of producing isotopes. Beryllium , Boron and Lithium are all capable of producing Neutrons when in interatction with high energy alpha particles.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
well, this project is supposed to make a SMALL battery (having to use water, which IIRC has to be heavy water, would be most cumbersome due to the design considerations) also, remember that I am not using Am-241... I am using uranium (and possibly other, more active sources) also, Aluminum produces neutrons with alpha radiation... and a golf club would need a warning label on it if it had Be in it for its toxicity (and I have not seen any ever on a club before, and they have to have them because people adjust their clubs...)
Registered Member #1630
Joined: Sat Aug 09 2008, 11:36AM
Location: Seoul Korea
Posts: 115
DaJJHman wrote ...
well, this project is supposed to make a SMALL battery (having to use water, which IIRC has to be heavy water, would be most cumbersome due to the design considerations) also, remember that I am not using Am-241... I am using uranium (and possibly other, more active sources) also, Aluminum produces neutrons with alpha radiation... and a golf club would need a warning label on it if it had Be in it for its toxicity (and I have not seen any ever on a club before, and they have to have them because people adjust their clubs...)
-- not exactly I didn't know you were using Uranium, Golf clubs did not need warnings on them as they were coated .. but you can read up on this on bay and Golf stores. EPA has now banned them for sale as the potential for poisioning is very real. There is quite a story on them online. We have quite a few in Victoria BC beacuse golfing is 365day sport here.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
usaman65 wrote ...
I would use a sample of pitchblende uranium ore. It is a LOT hotter than DU and cheaper and eisier to get.
do you have any details you are willing to share? output, size, electrodes, etc? currently time has been an issue (and you don't want to rush things with radiation)... but soon I should have more time to spare for my more research based projects...
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nuclear battery - no fission, fusion, or betavoltaics.
