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Re: Survey Meter Response Time
I recommend using an integrating device, such as an integrating ion chamber or
a TLD.
The opinions expressed are strictly mine.
It's not about dose, it's about trust.
Bill Lipton
liptonw@dteenergy.com
radbuster wrote:
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> I'm using an ion chamber (Ludlum9) to measure x-ray scatter. The beam =
> is only on for 2 secs, and the meter response time (to 90% final =
> reading) is about 3 secs. So, I'm reading low, but how low? Does =
> anyone have a plot of response vs. time? Are we looking at a hysteresis =
> curve here? I figure I can calculate a correction factor for my survey, =
> from such a plot.
>
> Joel I. Cehn
> cehn@aol.com
>
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> <DIV><FONT size=3D2>I'm using an ion chamber (Ludlum9) to measure x-ray=20
> scatter. The beam is only on for 2 secs, and the meter =
> response time=20
> (to 90% final reading) is about 3 secs. So, I'm reading low, but =
> how=20
> low? Does anyone have a plot of response vs. time? Are we =
> looking at=20
> a hysteresis curve here? I figure I can calculate a correction =
> factor for=20
> my survey, from such a plot.</FONT></DIV>
> <DIV> </DIV>
> <DIV><FONT size=3D2>Joel I. Cehn</FONT></DIV>
> <DIV><FONT size=3D2><A =
> href=3D"mailto:cehn@aol.com";>cehn@aol.com</A></FONT></DIV>
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