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particledetector · Counting Cosmic Particles from Space
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Messages 203 - 232 of 689   Oldest  |  < Older  |  Newer >  |  Newest
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203
http://en.wikipedia.org/wiki/Oh-My-God_particle...
starfire_003001
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Aug 10, 2004
10:57 pm
204
In the 70's I visited FermiLab ('twas the National Accelerator Laboratory then, I think) and in the lobby they had a cosmic ray detector that was (based on 30...
Gary Liming
g_liming
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Aug 11, 2004
1:17 am
205
Had an interesting bicycle ride over the weekend. I rode the "Route of the Hiawatha" rails-to-trails path in the Idaho panhandle (info at: ...
John W Samouce
samouce2
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Aug 16, 2004
8:22 pm
206
... Hi Gary! I've not seen any reference to this type of detector so far... But I'll google for it tomorrow. Just a thought for now: Since there is a heavy...
Hannes Mayer
al_birdie_2000
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Aug 16, 2004
8:30 pm
207
... Hi Dusty! Pretty cool! A portable muon detector :-) What did you use as power source ? As for the rocks: Since muons degrade quite fast in athmosphere, but...
Hannes Mayer
al_birdie_2000
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Aug 16, 2004
8:33 pm
208
My detectors were Aware Electronics RM-70s which run off the computer serial port. My laptop battery lasts only about two hours (test ended when I got the...
John W Samouce
samouce2
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Aug 16, 2004
8:45 pm
209
When I was a tennager, I interened with a group that was hanging cosmic ray detectors off of "Skyhook" Balloons flown out of Palestine Texas. They had a...
Eric Vogel
evogel99
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Aug 16, 2004
8:58 pm
210
Hi All, I wrote to a friend who works at Fermilab, sounds like the big detector was still there fairly recently. Here is his response: ...snip " I last saw...
Ned Lewis
ned2lewis
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Aug 24, 2004
11:47 pm
211
Hi all! Just came back from my vacation in Italy: 1st week: European Cosmic Ray Symposium in Florence 2nd week: Toscana and Liguria It was fantastic - met many...
Hannes Mayer
al_birdie_2000
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Sep 10, 2004
5:51 pm
212
[CC to the particledetector group] Hi Lloyd! Welcome aboard :-) ... Pretty cool! Could you describe your system a bit more ? Which tubes ? Coincidence circuit...
Hannes Mayer
al_birdie_2000
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Sep 12, 2004
8:31 am
213
Hannes That was a very interesting link to strangelets that you put on this page. I went to the FAQ's, hoping that somebody had explored the obvious question ...
John Murray
johnramurray
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Sep 12, 2004
9:10 am
214
http://kryon.org/1004/gamma.html http://kryon.org/1004/gammab.html http://kryon.org/1004/moregamm.htm [Non-text portions of this message have been removed]...
edmeasure@...
edmeasure
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Sep 12, 2004
12:07 pm
215
... Hi John! I did not have time to read the whole strangelet-poster at the ECRS, but I will do as soon as I get it via email. Maybe it covers that. The...
Hannes Mayer
al_birdie_2000
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Sep 12, 2004
2:54 pm
216
Hello, I am new to your group here... Lloyd ______________________________________________________________________ Post your free ad now!...
Island Roamer
island_roame...
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Sep 12, 2004
5:37 pm
217
... Hi Lloyd! Welcome aboard! :-) ... I also thought about this type, but the price is a bit high. If I may ask, where did you buy it and what did it cost ? ...
Hannes Mayer
al_birdie_2000
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Sep 12, 2004
5:51 pm
218
I forget off hand just where I bought it, I will have look to see where I got it from. But I recall the unit cost me some $600.00 but the was the counter and...
Island Roamer
island_roame...
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Sep 12, 2004
5:55 pm
219
______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca...
Island Roamer
island_roame...
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Sep 12, 2004
5:58 pm
220
I got mine from, I just looked from www.seintl.com I bought the Inspector EXP. When I bought this, it was not for just seeing what is coming in, in the form of...
Island Roamer
island_roame...
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Sep 12, 2004
6:11 pm
221
Now here is a mind bender question for you. A GM tube will pick up and show a hit from Alpha particals and show hits from X-Ray and Gamma Rays, but here is the...
Island Roamer
island_roame...
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Sep 12, 2004
6:35 pm
222
... Hi Robert! I've asked one particle physicist at the ECRS about this and he said that it should be possible when the detector is not in the Geiger region...
Hannes Mayer
al_birdie_2000
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Sep 13, 2004
6:51 pm
223
... Hi Lloyd, I don't think that is possible. In order to detect only xrays you need a specific xray detector, which only detects xrays. It's not that easy to...
Hannes Mayer
al_birdie_2000
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Sep 13, 2004
6:59 pm
224
... Hi Ned! Did your friend already find some additional information about the Fermilab detector ? Thank you, Hannes. -- ...
Hannes Mayer
al_birdie_2000
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Sep 13, 2004
7:02 pm
225
Hi Guys My understanding is that gamma and x-rays are identical in as much as they are both electromagnetic waves, and there is an overlap in frequency range. ...
John Murray
johnramurray
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Sep 13, 2004
7:27 pm
226
What I have done is this. I have placed a 1/4 lead plate in front of the GM pan-cake to block X-rays. This has worked as a have a X-ray emitter and I do not ...
Island Roamer
island_roame...
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Sep 13, 2004
7:32 pm
227
I am no expert by a long shot...BUT! This is what I know of the two. X-rays are a lower power and can be blocked with even as little as 1/16 of a inch of lead....
Island Roamer
island_roame...
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Sep 13, 2004
7:41 pm
228
... Hi Lloyd! Indeed! The energy (frequency) is the difference. ... That would be most muons and all other sort of high energetic particles. Speaking of other...
Hannes Mayer
al_birdie_2000
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Sep 13, 2004
7:49 pm
229
The danger of a Alpha emitter is that when it comes to power it is rated as high " Q " like that of 10 or so. While say U-237 is not all that bad. Gamma, I ...
Island Roamer
island_roame...
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Sep 13, 2004
7:49 pm
230
I recall this from when I was a kid from old hospital stuff. There was some type of screen that when X-rays would hit it, it would give off a glow. What was...
Island Roamer
island_roame...
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Sep 13, 2004
7:55 pm
231
... That would be most muons and all other sort of high energetic particles. Speaking of other particles: Anyone owns a deep cave ? Ever thought of a Neutrino...
Island Roamer
island_roame...
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Sep 13, 2004
8:03 pm
232
Hi: Some time ago I read all the info on the Berkeley Lab web page http://www.lbl.gov/abc/cosmic/ This unit uses two photo multiplier tubes that see the light...
Brooke Clarke
brookeclarke...
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Sep 13, 2004
8:04 pm
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