http://tech.groups.yahoo.com/group/particledetector/ Counting Cosmic Particles from Space Fri, 06 Mar 2009 02:34:11 GMT Rodney Howe http://tech.groups.yahoo.com/group/particledetector/message/683 http://tech.groups.yahoo.com/group/particledetector/message/683 I've posted a few new files in the Rodney_Howe folder: 090222 and 090220 where there seems to be an increase in the average muon count during the early morning Thu, 05 Mar 2009 13:40:40 GMT Ronald Fleshman http://tech.groups.yahoo.com/group/particledetector/message/682 http://tech.groups.yahoo.com/group/particledetector/message/682 Robert, Americanium 241 is a strong alpha emitter and a weak gamma emitter. The glass in your tubes will block the alphas.  Most Geiger counters have tube Thu, 05 Mar 2009 11:10:40 GMT robertatairstream http://tech.groups.yahoo.com/group/particledetector/message/681 http://tech.groups.yahoo.com/group/particledetector/message/681 That is excellent feedback Hannes, as I was very disappointed that I didn't get the same level reaction in the tube detector as I did with a Geiger counter. As Thu, 05 Mar 2009 09:05:31 GMT Ing. Hannes Mayer http://tech.groups.yahoo.com/group/particledetector/message/680 http://tech.groups.yahoo.com/group/particledetector/message/680 G'day Robert, ... this sounds a little strange to me, since alphas won't go thru the glass of the tube. Most likely your source also produces a good amount of Thu, 05 Mar 2009 06:50:21 GMT robertatairstream http://tech.groups.yahoo.com/group/particledetector/message/679 http://tech.groups.yahoo.com/group/particledetector/message/679 I went out on the weekend and bought a smoke detector for only $7AU which has a nice little alloy disk with americium 241 (according the package). It seems to Mon, 02 Mar 2009 21:18:28 GMT michael dowling http://tech.groups.yahoo.com/group/particledetector/message/678 http://tech.groups.yahoo.com/group/particledetector/message/678 The answer is yes. I arranged a visit for my college physics group. However we had to cancel due to unforseen circumstances. Educational visits are allowed Sat, 28 Feb 2009 21:06:49 GMT jacklusk3 http://tech.groups.yahoo.com/group/particledetector/message/677 http://tech.groups.yahoo.com/group/particledetector/message/677 Yes, all posts arrive by email. Jack3 Sat, 28 Feb 2009 08:24:50 GMT Marco IK1ODO -2 http://tech.groups.yahoo.com/group/particledetector/message/676 http://tech.groups.yahoo.com/group/particledetector/message/676 ... Loud and clear, Hannes. Marco Sat, 28 Feb 2009 07:16:34 GMT fanman http://tech.groups.yahoo.com/group/particledetector/message/675 http://tech.groups.yahoo.com/group/particledetector/message/675 Seems fine for me. Clay ... From: particledetector@yahoogroups.com [mailto:particledetector@yahoogroups.com] On Behalf Of Ing. Hannes Mayer Sent: Saturday, Sat, 28 Feb 2009 07:15:28 GMT Ing. Hannes Mayer http://tech.groups.yahoo.com/group/particledetector/message/674 http://tech.groups.yahoo.com/group/particledetector/message/674 ... Sorry for the noise ... provider issue on my side Sorry again. Cheers, Hannes. -- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ ... Sat, 28 Feb 2009 07:11:13 GMT Ing. Hannes Mayer http://tech.groups.yahoo.com/group/particledetector/message/673 http://tech.groups.yahoo.com/group/particledetector/message/673 Do you all get my posts delivered by email ? Thanks, Hannes. -- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+ ... Sat, 28 Feb 2009 07:05:33 GMT Ing. Hannes Mayer http://tech.groups.yahoo.com/group/particledetector/message/672 http://tech.groups.yahoo.com/group/particledetector/message/672 for some reason my posts are not delivered (at least to me) so here is a forward ... Subject: Latest from the LHC Date: Fri, 27 Feb 2009 18:02:41 +0100 From: Fri, 27 Feb 2009 20:42:54 GMT Ing. Hannes Mayer http://tech.groups.yahoo.com/group/particledetector/message/671 http://tech.groups.yahoo.com/group/particledetector/message/671 ... If you have the right connections ;-) I will probably have the chance to go down this year, but so far all is open.... Cheers, Hanness. ... -- Fri, 27 Feb 2009 20:38:57 GMT n8fgv http://tech.groups.yahoo.com/group/particledetector/message/670 http://tech.groups.yahoo.com/group/particledetector/message/670 Take your geiger counter to flea markets, yard sales or thrift stores, look for an older alarm clock with a radium dial. My dad's old alarm clock provides a Fri, 27 Feb 2009 20:38:53 GMT n8fgv http://tech.groups.yahoo.com/group/particledetector/message/669 http://tech.groups.yahoo.com/group/particledetector/message/669 Is there any way to visit the LHC underground areas? Or is it all sealed up and off limits to outsiders? I've been to the Microcosm museum but would like to