Lu-177 Gamma Spectrum 1.32mCi sample

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Expired & diluted source Lu-177 from cancer radiotherapy. Activity of the bottle is 1.32mCi at the moment of test.
Spectrum with 63x63 NaI(Tl) probe @distance ~30cm

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video of the test

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the bottle

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xml file

[NoLi]

Und so wird`s hergestellt:

Lutetium - So entsteht ein hoch wirksames Medikament für Krebspatienten

Gruß
Norbert

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Lu-177 spectrum. Calibration is little bit shifted in the device but auto-detection works and all typical peaks of the isotope are here.

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The sample of Lu-177 decayed for sure, but it has some tiny contamination of Lu-177m.
Here is the Gamma spectrum of meta-stable Lu-177m. RIID software detect it as Lu-177 because 177 is the product of the 177m decay.

for injection the contamination of 177m has no meaning because major part of the isotope is cleaned from the body very fast, but in the bottle it can be still detected. Half-life ~160 days.

[rhelectronics]

Followed since 13/04/22 post to 29/11/22, still has some activity of Lu-177m
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