The effectiveness of the SS can at stopping any high energy electrons that 
cause Bremsstrahlung would depend upon the thickness of the can (or alumina) 
and the energy of the incident electrons.  I think the loss of energy per 
scattering event is proportional to Z ^2 for the nucleus that is doing the 
scattering.  Al at Z=13 and with  Fe at Z=26 the intensity of the 
Bremsstrahlung signal would be about a factor of 4 different.  The mean length 
of the path of an electron is a good parameter to know for any given substance 
(basically its density) vs the incident energy of the electron.  Shielding 
engineering curves provide this information I believe.   Iron being 
significantly more dense than Al2O3 would be much better at slowing electrons 
and thus producing Bremsstrahlung IMHO. 

At high electron energies the change of direction of the electron going through 
SS can would be less than for a low energy electron.  For slow electrons 
scattering can significantly change the direction of an incident electron such 
that all Bremsstrahlung would be emitted from the material that stopped the 
electron. 

I think with a SS can present in the system vs no can and only Alumina stopping 
the electrons, one would expect to see a more intense signal at high energy  
compared to the spectrum from the Alumina reactor chamber.  The absorption of 
the EM Bremsstrahlung by the respective media would also have to be considered. 
 Neither Alumina nor SS may transmit some of the Bremsstrahlung spectrum very 
well.  Thus the effective shielding of the EM radiation considering a 
distributed source would have to be evaluated for the resulting high energy EM 
and the signal intensity corrected accordingly.  The cut off at the high energy 
spectrum will be a useful value to know to understand the maximum energy of the 
electron source.  This may provide information about the reaction producing the 
electrons.   The change of the intensity of the Bremsstrahlung signal as a 
function of the magnetic field would also provide information as to whether or 
not the lattice orientation of the nano fuel was important.   One might expect 
that the electrons being produced by the respective LENR reaction would 
produced in some preferred direction.  

Bob Cook
From: Bob Higgins
Sent: Friday, March 11, 2016 6:09 AM
To: vortex-l@eskimo.com 
Subject: [Vo]: Bremsstrahlung experimental note

I don't know if other Vorts thought of this already... but I had a minor 
epiphany regarding the radiation that MFMP measured in GS5.2.  We identified 
this radiation tentatively as bremsstrahlung.  This has certain implications.  
Bremsstrahlung requires that the high speed electrons impact on a high atomic 
mass element so as to be accelerated/decelerated quickly to produce the 
radiation.  It could be that the stainless steel can that contained the fuel 
was an important component in seeing the bremsstrahlung.  Without the can, 
there would still be the Ni for the electrons to hit, but the Ni is covered 
with light atomic mass Li.  If the electrons were to strike alumina (no fuel 
can present), I don't think there would be nearly as much bremsstrahlung 
because alumina is comprised of light elements.  

Thus, the stainless steel can for the fuel may be an important component for 
seeing the bremsstrahlung.


Bob Higgins

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