RE: Floor monitors: Model 239-1F

[7pe@ornl.gov (Phil V. Egidi)]

Bicron NE also has floor monitors now.  I use the Ludlum, and it has been a
workhorse.
Phil Egidi
ornl/gj
7pe@ornl.gov


At 11:12 AM 9/10/99 -0500, you wrote:
>Mr. Pierson is correct - the Ludlum Model 239-1F can be readily operated in
>dual mode.  We run ours with a Ludlum Model 2360 data logger, which
>simultaneously logs alpha, beta, and crosstalk components.  It has a 500+
>cm2 active window area.  BUT, like most gas flow proportional counters, it
>has a relatively low efficiency for detecting gammas, and no standard
>method for distinguishing gammas from betas.  Additionally, the system
>doesn't come equipped with any self-propelled drive system, i.e., someone's
>gotta push it.

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