DH, You are usually two or three steps ahead of me, but this time I am not so sure. I can't follow the simplifications in your statistical method. It does...
27365
Geo>K0FF
K0FF
Aug 2, 2008 5:08 pm
no way, unless his house is near Chernobyl. see: http://www.qsl.net/k0ff/What%20*IS*%20and%20What%20*IS%20NOT*%20A%20Geiger%20Counter/ Geo ... From:...
27364
officerseal
Aug 2, 2008 4:55 pm
He was in his house infront of his PC. He didn't mention any sources of radiation or anything. I even talked to him and he said it was background radiation....
27363
DH
revtkatt
Aug 2, 2008 3:39 pm
A great quote, no? http://www.bangkokpost.com/020808_Business/02Aug2008_biz35.php (An ex-soviet 'istan wants to keep running their uranium manufacturing..)...
27362
DH
revtkatt
Aug 2, 2008 3:20 pm
... tennessee was once covered by ocean, and the sedementary rocks are rich in sea life, dating back to before cambrian through the devonian period. that there...
27361
Geo>K0FF
K0FF
Aug 2, 2008 2:30 pm
"Unfortunately, this 'exercise' didn't do much to help 'sticky meters' reform and lead productive lives. Doc" No but it would make a cool video, especially if...
27360
Geo>K0FF
K0FF
Aug 2, 2008 2:23 pm
where was the guy standing? Geo ... From: officerseal To: CDV700CLUB@yahoogroups.com Sent: Saturday, August 02, 2008 12:39 AM Subject: [CDV700CLUB] Can a CD...
27359
robertdruecker@...
Aug 2, 2008 1:32 pm
I don't want to seem ignorant, but isn't it possible that much of tennessee was once covered by ocean, and the sedementary rocks are rich in sea life, dating...
27358
trilobitedoc
Aug 2, 2008 6:44 am
Tom and George have great ways of testing the 50 uA meters that are found on CDV-700s. My way is down dirty and cheap. I 'borrow' the 'D' cell holder from a...
27357
officerseal
Aug 2, 2008 5:39 am
Hello everybody! I am new to these forums and this is my first post :) I am pretty new to geiger counters and I have a quick question. -Can a CD V-715 detect...
27355
DH
revtkatt
Aug 2, 2008 4:50 am
Guys, in many cases, the lava/tuff layers are rinsed by freshwater which dissolves uranium salts in the lava and deposits it elsewhere. Often,...
27354
Geo>K0FF
K0FF
Aug 2, 2008 2:34 am
... From: Geo>K0FF To: GCE2 Sent: Friday, August 01, 2008 11:45 AM Subject: BIG Water clear sodium iodide crystal- $25.00 Cylindrical Bicron crystal, NOT...
27353
robertdruecker@...
Aug 2, 2008 1:04 am
good job steve. finally we have an explanation that even I can understand, and it makes sence. after I sent the e-mail, I realized that I had said lava. I...
27352
Steve Poterala
turtlesteve85
Aug 1, 2008 9:42 pm
It has to do with partitioning of different elements into the magma that formed the granite (not lava unless it's on the surface). When a magma forms from a...
27351
robertdruecker@...
Aug 1, 2008 7:48 pm
ron, I'm thinking that granite was enriched with uranium, in the same way that the chattanooga shale was. the shale was layers of volcanic ash, and the granite...
27350
Geo>K0FF
K0FF
Aug 1, 2008 6:32 pm
" The medium doesn't have to be in contact with the detector, just between it and the neutron source. " Having the moderator on the side of the probe away from...
27349
boomologist
Aug 1, 2008 5:22 pm
The Autunite in our mine is found on and in Granite Pegmatite. Thanks, Ron...
27348
DH
revtkatt
Aug 1, 2008 4:49 pm
... The liquid inside gradually escaped, so I stupidly assumed I could refill it with alcohol. Bad mistake! ... collection of radium paint particles. I can't...
27347
DH
revtkatt
Aug 1, 2008 4:42 pm
I think your analysis is more complex than necessary: http://www.aw-el.com/deviat.htm STANDARD DEVIATIONS ABOVE BACKGROUND Determine background CPM (Counts per...
27346
Geo>K0FF
K0FF
Aug 1, 2008 4:35 pm
proportional. Need 1700V, 2 mV. Geo ... From: keylimepie22000 To: CDV700CLUB@yahoogroups.com Sent: Friday, August 01, 2008 10:42 AM Subject: [CDV700CLUB] Re:...
27345
DH
revtkatt
Aug 1, 2008 4:31 pm
... use one ... heading ... So when you receive one, if you test it to see if its good, eg with balloon & paper electroscope, that's illegal? Do QA, do time? ...
27344
DH
revtkatt
Aug 1, 2008 4:28 pm
... internet. one company started in 1889, with gray structural granite, for monuments, buildings etc. our companies were undercut by italy and spain. ...
27343
Steve Schoner
steve_schoner
Aug 1, 2008 3:55 pm
These WWII switches make excellent check sources. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130237204397&_trksid=p3907.m32&_trkparms=tab%3DWatching ...
27342
keylimepie22000
Aug 1, 2008 3:42 pm
JJ I don't have a He-3 or Bf3 tube. would like to get one are these set up as proportional or geiger? ... thickness ... doesn't ... effect...
27341
keylimepie22000
Aug 1, 2008 3:37 pm
Thanks JJ That sounds like a good way with cd's. I was just reading that on fusor.net also. I don't have a He-3 tube handy at the moment is this able to...
27340
Geo>K0FF
K0FF
Aug 1, 2008 2:57 pm
a typical eBay 'auction' number for Cs-137 is 350072156906. Many other isotope sources also available from GEOelectronics , most but not all as listed in NRC...
27339
Miki Kanazawa
mikikanazawa
Aug 1, 2008 2:44 pm
... I think most people here use external check sources. I got mine from gothotrocks.com, and keep a thorium lantern mantle nearby too. The original CDV...
27338
John Jones
xyzbaub
Aug 1, 2008 2:42 pm
To slow down (moderate) fast Neutrons we use CD's (not the financial type). But then our detectors are He-3 based tubes. We coat a tube with CD's, for...
27337
robertdruecker@...
Aug 1, 2008 2:05 pm
sorry for creating a monster. I never realized that I would cause such a stir here, talking about granite. I know its been on the news quite a bit, with...
27336
robertdruecker@...
Aug 1, 2008 1:49 pm
while were still on granite, I looked up history of granite on internet. one company started in 1889, with gray structural granite, for monuments, buildings...
