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Also on the cheap side.. and great for hobby-type projects (computer interfacing, etc...) is the RM-60 geiger counter. (we use them for high-alititude balloon experiments)
http://www.aw-el.com/index.htm
Three wire interface: 5V, Gnd, and output (pulses) of tens of usec. I think the dead time is around 90 usec.
Current price is $180 or so.
No buttons or display... it's just a box. ;-)
-steve
On Mar 28, 2011, at 8:16 PM, phys-l-request@carnot.physics.buffalo.edu wrote:
_______________________________________________Message: 5
Date: Mon, 28 Mar 2011 08:20:24 -0700
From: "M. Horton"<scitch@verizon.net>
Subject: Re: [Phys-l] Geiger counter
To: "Forum for Physics Educators"<phys-l@carnot.physics.buffalo.edu>
Message-ID:<FE554C4DF41D4BCDA6A1C5BEEF104FBB@mike2>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
It's even cheaper on the Vernier website:
http://www.vernier.com/probes/drm-btd.html
Mike
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l