Activation of Rhenium (Re-188m)

This area is for discussions involving any fusion related radiation metrology issues. Neutrons are the key signature of fusion, but other radiations are of interest to the amateur fusioneer as well.
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Joe Gayo
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Activation of Rhenium (Re-188m)

Post by Joe Gayo »

20g Rhenium
New Cube Moderator (optimized with foil experiment and simulations - viewtopic.php?f=13&t=14087&p=92182)
Activated for 1 minute @ >1E+8 n/sec TIER

Dual Pancake Probe Test Setup
DualPancakeProbeSetupSmall.png
2x Ludlum Model 3 with 44-9 Probes
2x Canberra 814A PAD
Ortec 874 Quad Counter

Time (s)....Rhenium.....Background
300..........475...........212
1800.........2793.........1366

The gamma spec shows one distinct peak above the background at 64KeV, meaning it's Re-188m (1.3 barns). There might be a small peak at 155KeV (Re-188), but I would need to activate the sample more.

NaI 1x1 Detector
1000sec Count
Canberra 35+
Re188m_20210718T230018.png
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Richard Hull
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Re: Activation of Rhenium (Re-188m)

Post by Richard Hull »

Great activation. A tough one for sure.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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