Not radiation related, but I thought of possible interest to the electronic and computer oriented: Colossus Mk2, a wartime code-breaker hailed as one of the...
... produce ... A lot of that is probably the ability to withstand major problems (slam into mountain at N m.p.h while on fire) without leaking. The...
Hummmm, will the next iteration be designed to survive, unbreached, a direct hit from a 5kg shaped charge armor penetrator? Yes, I understand the "worst case"...
Handbook of Radioactivity Analysis big book, full of good info. Goes for 2 dollars. Don't bid it up, he has hundreds or thousands of them Good one for your...
... Clever. You can deliver that from a distance by RPG. But the railcar metal wall will detonate it prematurely unless you've twiddled with the fuzing and...
how about a Geiger Counter that works from a HV generator used to spark the flame in a BBQ grill. The spark can be rectified and regulated using diodes and...
My mobile gamma monitor/alarm would have let me down in Oak Ridge / Knoxville last month. I did miss the Sr-90 spill by a week, but did travel right over that...
One of the lead shields that I acquired as part of that system , made by Ludlum is made for 2" scintillators, especially the 2" by 1/2" NaI that is LED...
... FYI, you can buy energy compensated GM tubes from LND/etc that use similar techniques to get a flat response (to within 10% or so) over a fairly wide...
In a message dated 6/8/04 6:42:02 PM Central Daylight Time, K0FF@... writes: how about a Geiger Counter that works from a HV generator used to spark the...
The shake flashlights are a good idea but still expensive.The pump ones are now coming in from Russia and are very reasonable. 3V source of power, just right...
Bought a sealed source off eBay, was supposed to originally be a 1200 uCi Pm-147 gauge. The legal limit for Pm-147 is 10 uCi. Based on the age, this one should...
In a message dated 6/9/04 10:39:51 AM Central Daylight Time, K0FF@... writes: The shake flashlights are a good idea but still expensive.The pump ones are...
Geiger's run anywhere from10 mA for a really well designed unit like my homemade pocket unit to over 80 mA for a CDV 700. Geo ... From: <troglodite@...> ...
... ones are ... power, just ... I have a solar geiger counter (part of my case-mod of a vic v-700), but because the sun is only availible 50% of the time, the...
cool, I have one too, but the panels are 1 meter long each ( part of a trailer mounted outfit I built a few years back, radio tower, deep cycle batteries,...
... of a ... cycle ... moonbounce ... I just want to say, that thing sounds cool :) Would it look out of place in a Mad-Max post apocalypse world? Got any...
Hi, You can also get little wind-up mobile phone chargers that might run a counter. they look like a minature version of an old fashoned desk pencil sharpener....
Further to this discussion: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=14023&item=3249361306 Forgive me if this has already been mentioned. ...
very nice Robert, I really like those pneumatic masts. Have only seen one here on ham vehicle. I'll put a few snaps of my trailer in the same album in PHOTOS...
Sorry, Doug, but to the best of my knowledge you are wrong about the unipolar nature of the piezo-generator output. The device is designed to generate a fast...
In a message dated 6/10/04 10:21:21 AM Central Daylight Time, siliconhillbilly@... writes: Sorry, Doug, but to the best of my knowledge you are wrong...
If you want a no-battery high voltage supply, go to your local sporting goods store, or survivalist shop, or haunt the local pawn shops, and look at the night...
... wrote: Any ideas considering the rain and snow and slop we get in the ... A plastic sheet that can be scrolled so fresh material is the only thing between...
Doug, The "equal area" concept is correct. A spark gap would work, but you still need a way of replacing the charge without arcing the gap again. I used one...
The wind-up Geiger is allready invented. I put some photos of the so called "Geigermaster" in the archives (file: No battery geiger). You use a coin to wind it...
Tried Teflon tonight, to see if it passes radiation well or not. Gammas go right through but Betas and X-Rays are blocked by the sheet of Teflon I have. While...
If you want to pass betas and low energy gammas (x-rays) you want to consider mylar. For betas, experimentation is unnecessary. If you know the energy of the...
... I think you can get a 350 Farad 3V cell in the shape of a regular D cell now. Probably more efficient than a chem battery. look up supercapacitor...
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