To answer Mark's question, I believe that if you had a gamma sensor inside
the reactor, you would see gamma every time you see LENR (Bob's opinion).
 What would change is the spectrum of the gamma.  When the LENR starts or
runs un-optimized, the photon energy is higher - perhaps in the 50 keV to
200 keV range.  At this energy, the photons will statistically penetrate
most reactor housings and would be detectable.  Then when the reaction
becomes optimized for heat output, the gamma spectrum shifts to much lower
energy photons - in the 5 keV to 25 keV range.  Photons in this range would
be absorbed in the nickel powder and the stainless reactor vessel and would
be turned into heat; and, some, probably only a few, would make it out
statistically for detection as a low rate gamma in a sensitive detector.
 If you had the reactor vessel and the gamma scintillator detector (NaI)
surrounded by lead to block the environmental radiation, you might be able
to see some of this low energy gamma leak if you have a thin wall reactor
vessel.  This is what I am setting up now.  Then I will be able to
correlate the radiation peaks to events such as gas loading and thermal
outbursts.

The magnetic field has only been reported AFAIK by Defkalion.  Their
reactor is stimulated differently than anyone else's and it could be the HV
plasma pulses they setup that provide a magnetic field alignment and result
in a big field.  It is a fascinating phenomenon, that if it pans out, could
provide a means for direct LENR to electrical conversion.  I look forward
to hearing more about this.  I have some experiments regarding this planned
as well.  I can't say if the MFMP people are monitoring for magnetic
fields, but I am sure some them are seeing your question.

I would like to make sure that you are clear on the terms gamma and X-ray.
 Gamma rays are defined as photons being generated from a nucleus.  Gamma
ray photons usually have a really high energy, but not always.  X-rays are
also photons, usually generated by inner shell electrons of an atom.  X-ray
photons normally have an energy range from a few keV (just above EUV) to
about 100keV.  Gamma photons can be as high as 10's of MeV, and are
infrequently seen below 25keV.  But just to be clear, gamma and X-ray
photons at the same energy level are the same thing - photons.  Gamma just
refers to the provenance of having come from a nucleus.

Thank you, Jed, for trying to clear up what I was trying to say.  I meant
to say that gamma may occur with LENR every time, but few detect it, in
most cases for failure to detect with adequate sensitivity, and/or working
with a too thick of reactor vessel which attenuates the gamma rate to below
the environmental radiation level.  Focardi published a paper with
Piantelli in 2004, "Evidence of electromagnetic radiation from Ni-H
Systems", where he describes gamma photons (the electromagnetic radiation)
spectrum.  They detected 661keV gamma and reported it in that paper.  So,
this is far from new.  But, everyone became focused on heat, in part
because Rossi seemed to be getting heat while claiming no radiation.  In
his case, I think he was referring to no radiation leakage outside of his
reactor vessel.  I believe his reaction is well optimized and produces
prodigious gamma photons whose energy is below 20keV and almost all of it
is thermalized in his reactor shell.

Bob


On Thu, Nov 7, 2013 at 5:46 PM, Mark Gibbs <[email protected]> wrote:

> OK, so it seems that gamma rays may be an output from LENR systems but is
> it the case that experimenters have just simply failed to look for them or
> that they don't always occur. Likewise with the incredible magnetic field
> that has been claimed, has that been seen more than once? Do the MFMP
> people monitor for magnetic fields?
>
> [m]
>
>
>
>
> On Thu, Nov 7, 2013 at 2:17 PM, Jed Rothwell <[email protected]>wrote:
>
>> Mark Gibbs <[email protected]> wrote:
>>
>> Yes, I meant not significant ... that was what I took away from Bob
>>> Higgins' comment:
>>>
>>
>>> On Thu, Nov 7, 2013 at 9:53 AM, Bob Higgins <[email protected]>
>>>  wrote:
>>>
>>>>
>>>>
>>>> From a product perspective, don’t forget that CRT’s produce X-rays in
>>>> this energy range.  The CRTs were later designed to have leaded glass to
>>>> minimize the emissions, but they first shipped with the emissions.  Even
>>>> many of the older high voltage rectifier tubes produced X-rays.  So, there
>>>> is nothing about having a primary reaction channel yielding low energy
>>>> gamma that would prevent a shipping product.
>>>>
>>>
>> Not to put words in Bob's mouth . . . I think he meant that many devices
>> produce gamma rays, so this would not preclude the commercial use of a cold
>> fusion reactor that produces gammas. The reactor would not be dangerous, as
>> long as it is properly shielded.
>>
>> However, this does not imply that the gamma rays are not "significant"
>> from physics point of view. They are significant, meaning "important" or
>> "compelling, convincing." Coming from a cold fusion reactor, these gamma
>> rays definitely prove that a nuclear reaction is occurring. They could not
>> be produced by a mechanism similar to the one in a CRT or an x-ray machine.
>>
>> They are "significant" in the mathematical sense as well. Meaning well
>> above the noise.
>>
>> They are not surprising. Not to me, anyway.
>>
>> - Jed
>>
>>
>

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