Goal
Reduce or eliminate radioactivity in nuclear waste and radioactive materials.
Problem
Radioactive contamination from isotopes such as Cobalt-60 and Americium, and the broader issue of nuclear waste disposal.
Concept Summary
Brown's Gas is a stoichiometric mixture of hydrogen and oxygen produced by electrolysis of water, kept under pressure and burned simultaneously. Exposure of radioactive material to the resulting flame is claimed to dramatically reduce its radioactivity within minutes.
Detailed Description
The process separates water into hydrogen and oxygen, mixes them in a 2:1 ratio, and compresses the mixture up to 100 psi. The resulting gas, containing ionic H^+ and O^- species, is ignited to produce a high-temperature flame. Demonstrations reported that treating Cobalt-60 or Americium with this flame for a few minutes lowered measured radiation levels by 50 % to over 99 %. Generators producing up to 10 000 L h^-^1 have been built, powered by 0.66 kW-13.2 kW DC electricity, and are marketed for welding as well as radioactive decontamination.
Principles
- Stoichiometric hydrogen-oxygen combustion
- Electrolysis of water
- Ionic hydrogen and oxygen species
- Thermal interaction of flame with radioactive material
Scientific Domains
Materials
- Water
- Hydrogen
- Oxygen
- Steel (iron)
- Aluminum
- Americium
- Cobalt-60
Mechanisms of Action
- Flame-induced de-activation of radionuclides
- Possible ion-mediated transmutation
- Thermal desorption of radioactive contaminants
Energy Sources
Applications
- Nuclear waste decontamination
- Radiation reduction for contaminated equipment
- Industrial cleaning of radioactive surfaces
Claimed Performance
Reductions of Cobalt-60 radiation to 0.04 % of original level (~=99 % decrease) in <10 min; Americium activity lowered from 16 000 cpm to <100 cpm (~=99.4 % reduction).
Experimental Evidence
1991 Baotou Nuclear Institute report showed Cobalt-60 intensity dropping from 580 mrad/h to 115-120 mrad/h after treatment; 1992 DOE observers recorded Geiger counts falling from 1 000 to 40 for Cobalt-60; Japanese scientists from Toshiba and Mitsui observed a halving of Cobalt-60 dose rate after a single treatment.
Replication Status
Multiple demonstrations reported (Chinese nuclear institute, US DOE observers, Japanese scientists), but no independent peer-reviewed replication documented.
Limitations
- Lack of peer-reviewed, reproducible data
- Unclear physical mechanism for radiation reduction
- Safety considerations for handling hydrogen-oxygen flames
Red Flags
- Extraordinary claims of near-complete de-activation without independent verification
- Potential misinterpretation of Geiger counter readings
- Hydrogen-oxygen flame poses fire and explosion hazards if not properly controlled
