Fusor Forums

Thanks. I’m going request to return the item.

The one I received seems to have locked thresholds and doesn't adjust per the manual. Does anyone know how to restore factory defaults? (at the moment it constantly alarms on power-up)

Nice work Mark.

Here is my first gamma spec measurement.

- Indium Foil (100x100x0.1mm) sandwiched with 100x100x50mm LDPE blocks.
- 120sec exposure
- 1in^2 NaI Detector, 900V, 1000sec count

New Record @ 4:46pm PST-

Cathode Voltage: 97932V (Ballast Resitor 100k Drop Subtracted)
Cathode Current: 14.38 mA
Pressure (D2): 1.865 Pa (Base Pressure Before Run: 9.866E-5 Pa)
Calibrated TIER: 4.217 E+7 n/sec
Q: 3.50 e-8

I believe n/sec and Q are amateur records.

Jon Rosenstiel's posts about his cube fusor seem to be missing ...

This search helps: https://webbook.nist.gov/chemistry/mw-ser/

The strong presence (2.86E-7 Torr) of 5 amu correlated with high fusion rate runs temps me to believe this is DT.

@Dan - I’m trying to complete the following list of possible detected species that’s relevant for fusors

AMU: Possible Species
1: H+
2: H2, D+
3: H3, HD, 3He, T+
4: D2, 4He, TH
5: D2H+(?), TH2+(?), DT
6: D3+, T2, C+

19: DHO, H2OH+, NHD2, CH3D
20: D2O, ND3, CD4
21: D2OH+, DTO
22: D2OD+, T2O

I find it interesting that even after an hour it’s still there and it didn’t show up in lower fusion rate runs

What’s an alternate explanation for mass 5 if tritium isn’t present ?

More interesting data ... any guesses for amu 21 (DTO ?)