Test of a 4x4x16"detector

[luuk]

Hi Guys,
I did a test with a 4x4x16"NaI(Tl) detector if interested ,
Please read the attachment.
Luuk

[iRad]

Wow, love those twin Co60 peaks! What energy is the large peak in the center of the background test?

[luuk]

Hi Tom,
That is the K-40 peak the peak on the right is the Th228.
Luuk

[iRad]

I figured it was.

[Sesselmann]

Luuk,

Those are impressive crystals, thanks for sharing. As you suggest very impractical for most amateurs, being so large, the BG count rate would saturate the average sound card system.

Steven

[Geoff]

Wow! That is an impressive background spectrum in only 50 seconds!

[luuk]

Hi Geoff,
Yes, a lot to see in a short time, but that is also the downside, it need lots and lots(tons) of lead to shield it.
Luuk

[Sesselmann]

I imagine these would be good for large area mineral mapping. Are they intended to be used together as an array?

[luuk]

Hi Steven,
Yes, they sometimes use them mounted under a small plane or a truck(4x4) for mineral mapping mostly not more than two detectors.
they are perfect for it ,real high efficient detectors.
Luuk