Understanding Attenuation of Potential Ionising Radiation in a Parkhomov Style Reactor (MFMP)

Understanding attenuation of potential ionising radiation in a Parkhomov style reactor.

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A concerned follower and very generous British donor called Stephen has made it possible for the project to acquire a full turn-key UCS30 spectrometer system which arrived yesterday at Alan’s in California and was set up by him and MFMP volunteer Skip who has driven all the way down from Canada to help in a series of tests.


The system comes complete with a set of check sources – detailed as

“A set of 8 sources including one each of Co-57, Na-22, Cs-137, Co-60, Mn-54, Cd-109, Ba-133 and an unknown mixture of two nuclides.”

and between us and the donor, we came up with the idea to do research that would add valuable data to all those working on replications. For a start we want to see

1. how far these samples emissions would be attenuated by the kind of reactor materials we are using

2. if they can get through, would they trigger a reaction?

The first would help people understand the reality of what should be being seen outside a reactor should there be high energy photons being generated inside.

The second is worth considering because, as Bob Greenyer just remembered – Alexander Parkhomov has at least 2 Strontium 90 sources in his neutrino experiment that is under 1 meter away from the Ni+LiAlH4 experiments he is conducting. 90 Sr is a know beta emitter, beta emission has been claimed as one way to form Rydberg state Hydrogen. It is likely though that none of these emissions reach the reactor.

Bob Higgins has his own personal UCS20 system which is part of his {GarbageCan} apparatus and has already started the research, with interesting results, see the attached graph. Here is what Bob says:

“Here are some outputs from the measurement of the alumina substrates using the two primary gamma lines of the 241Am source. The source is a point emitter from a smoke detector. The two lines are at 26 keV and 59 keV. The measurements were made as the sum of counts within a ~10% bandwidth for each line. Using a band of channels gave a lot more counts and reduced the uncertainty in each measurement over what it would have been for just a single channel. The integration time was 100 seconds for each sample.

The substrates used are 99.8% alumina that are 2.5″ square and ~0.025″ thick. 0 to 8 substrates were placed in a stack between the source and the detector. The mass density of each substrate was measured and the plot is attenuation vs. mass density. However, the greatest mass density data point corresponds to 8 substrates which is 0.2″ of alumina (a lot of alumina).

As can be seen in the plot, even the 26 keV photons penetrate the 0.2″ thick alumina with relatively high efficiency (~68%). That’s good news. It means that 1) substantial low energy (26 keV) photons can make it through the alumina, and 2) the NaI detector can detect them pretty well even at 26 keV.

A linear trend-line was used in this plot, which is not the correct curve for such a transmission analysis. However, the actual curve will differ little from the linear curve over this small attenuation.”


  • Sanjeev
  • Observer

    Yes, but how much radiation gets past the heating coil?

    It may be that the heating coil is being heated both by the applied current and ionizing radiation from the reaction.

  • Mike Henderson

    Is Stephen’s last name Hawking, by chance? 😉

    • Stephen

      Wow! Nowhere near as amazing as him I’m afraid. I’m just an ordinary guy. SH is the most amazing guy on the planet. MFMP are also pretty amazing though and inspire me.

      • Ivan Idso

        Thank you very much Stephen!

        • Agaricus


          • GreenWin

            Wonderful day Stephan!

      • artefact

        Makes me think of the first Bologna presentation when Celani measured the gamma spike at the beginning. Maybe Rossi started the reaction with some gamma emitting material.

        • Obvious

          From my experience, there isn’t any container that isn’t giant that Rossi could keep such a powerful radioactive source in. This would have had to have been an initiated source, similar to an X-Ray machine to suddenly turn on and off such a huge spike of radioactivity.

  • Gerard McEk

    Not bad at all to investigate the influence of radioactive materials/radiation on the LENR. I think it can be considerable. I believe Rossi has always denied the usage of these materials and I am sure they would have been detected/found in the Lugano experiment.

    • Ted-X

      Investigating ULTRASOUND effect could also bring potential results. There is a LENR US-patent (application, but published) by Cook, who “speculated” that the ultrasound might be the missing component in the Pd-D2 system of Fleischman and Pons. There is another group which noticed radiation from water exposed to ultrasound (they even got radiation sickness; cavitation is suspected to cause nuclear reactions and even emission of neutrons). Under the “hot-cat conditions” the nickel metal is melted. CAVITATION EFFECT IS NOT LIMITED TO WATER. Under the low-temp-cat, lithium is liquid (m.p. 180 deg.C; lithium metal will co-exist with its own hydrides and LiAlH4 in a thermodynamic equilibrium).

      NOTE: This information is provided “pro publico bono” and to avoid another ultrasound-related patent for the Ni-H system.

  • Bob Greenyer

    The UCS30 had its first outing yesterday


    Interesting. However, it is very likely that any emissions are extremely short lived. This is what me356 had to say about his experiment yesterday

    “I have a Geiger Counter. It is device that is placed near the pressure meter.In each experiment I am able to measure gamma blasts with peaks of 0.6uSv/h.
    After each experiment there is little bit increased radiation around 0.2 – 0.3uSv/h for few days.
    Normal background radiation in the room is around 0.1 – 0.2.
    But it could be just coincidence, difference is marginal.”

    • Andreas Moraitis

      He could use a lead shield in order to determine if the supposed additional radiation comes from the reactor. If so, a blank run might be suitable to gain further information.