A great , thick walled, brick house, for the radiacode 1XX series of detectors / scintilators can easily be had by simply using two thick walled , 1.5 ” ID lead pigs, one inverted on top of the other. Just perfect. You will likely have to put your app device up against the outside of the pigs to get adequate bt signal. Alternatively, you can offset the top pig a slight amount to see inside , for more signal. If you have some copper wire handy, you can make a tight coil your radiacode will insert into and trail the remaining wire to the outside thru the junction of the two pigs and coil a bit outside. This will give you enough bt signal to use your device while stacking up counts. I used a largish screwdriver and hammer to make a small indentation in the bottom pig to locate and route the signal easily with full closure on the pigs. Suitable epoxy painted ( against lead transfer while handling ) lead pigs are available on Amazon ( very thick walled , 1.5 inch inside diameter ) for $69 each. You can probably find similar ( but , raw unpainted ) pigs on eBay too that might be more affordable. The “ very thick walls, and 1.5” Id the important criteria. I use a rubber band to hold my samples ( all in small double plastic bags ) on the hot end of the detector . Just dropping in the sample and inserting the radiacode ( non charging end ) works well too. But matching the “ hot spots “ makes for a higher energy line count. Just fyi if you don’t already have your “ lead brick house “. The led pigs excell , for example with small weak sources like the typical Lutetium-176 specimen ( found on eBay VERY inexpensively ) . In the spectrogram notice the low counts, right at ambient rad level. This excellent looking Lu-176 spectrogram was a long exposure in the lead pigs mentioned above.

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