[Vo]:FYI: Theorem unifies superfluids and other weird materials...

2012-06-12 Thread MarkI-ZeroPoint
Theorem unifies superfluids and other weird materials

 

http://newscenter.berkeley.edu/2012/06/08/theorem-unifies-superfluids-and-ot
her-weird-materials/

 

Don't know if Storms' NAE qualifies for 'weird materials', but I'd bet it
does...

 

-mark

 

 

attachment: winmail.dat

Re: [Vo]: Nuclear Stability and Proton or Neutron Addition

2012-06-12 Thread pagnucco
Your question of whether Rossi or W-L are correct (if either is) made me
want to check whether a cascade of neutron captures suggested by W-L were
consistent with Rossi's reports.

Using the data from the wiki-page on masses and half-lives for Ni-isotopes
http://en.wikipedia.org/wiki/Isotopes_of_nickel
-- it appears that the sequence of neutron captures are all exothermic -
58Ni
  | (8.2 Mev)
59Ni
  | (10.5 Mev)
60Ni
  | (7.0 Mev)
61Ni   (energy released)
  | (9.8 Mev)
62Ni
  | (6.1 Mev)
63Ni
  | (8.9 Mev)
64Ni
  | (5.3 Mev)
65Ni -- 65Cu (stable)
  | (8.1 Mev)
66Ni -- 66Cu -- 66Zn (stable)

(The ~780 Kev cost of electron capture is subracted from energy figures.)
From 58Ni through 64Ni, half-lives are very long.
After 66Ni, half-lives become too short to provide much transmutation ash.

If we start with off-the-shelf Ni (normal isotopic mix), it looks like
very little Cu63 would result, but there could be significant amounts of
65Cu and some 66Zn.  The distribution of 58Ni-64Ni should show enhanced
concentrations of the heavier Ni-isotopes.

Rossi claims he use Ni enriched in 62Ni and 64Ni in the e-cat.  Unless
they have significantly larger cross-sections to capture low energy
neutrons, the enrichment would probably not help if W-L neutrons are
responsible.

(The Lattice Energy website on Nickel-Seed LENR Networks that may have a
more complete analysis than mine.)

Rossi claims the e-cat LENR results from Ni-proton capture.

-- Lou Pagnucco


Dave Roberson wrote:

 I have been reviewing a table of nuclides in an attempt to make sense of
 the process suggested by WL proponents and those of Rossi.  In the WL
 theory a neutron is formed by the combination of an electron and a proton
 with the .78 MeV of energy being supplied by their process.  This neutron
 then finds its way into a nucleus of nickel in this version of devices and
 energy is released.  The final result is the next heavier isotope of
 nickel plus a significant amount of energy.
 The Rossi process involves the insertion of a proton into the nucleus of
 the subject nickel atom forming a new copper atom along with release of
 energy.  Some of the copper isotopes formed by addition of a proton into
 their parent nickel isotopes decay by beta plus action into the next
 heavier nickel isotope along with a release of additional energy.
 The above two paragraphs offer an extremely brief description of the two
 theories.  They are not intended to get into details which can be located
 within many documents.
 My purpose for writing this document is to reveal an interesting
 observation that I have made concerning the two processes.  This may be
 well known to many of the people on the list, but it is new to me and I
 offer it as a refresher.
 If you take any stable isotope of an element, for example nickel 60 and
 either add a neutron as with the WL process or overcome the Coulomb
 barrier by forcing a proton into the nucleus you find an interesting
 result.  In virtually every case only one of these processes leads to a
 stable isotope in a single reaction.  There are only a couple of
 exceptions to this observation and that appears to be when neither process
 results in a single step stable new atom.   Of course the newly created
 atoms will all eventually decay in steps until a stable result is
 obtained.
 I further notice that the end result of the two processes is the same
 nuclide.  An example is as follows: Start with Ni60 and add a proton to it
 by forcing the particle against the Coulomb barrier and you obtain Cu61.
 Some immediate energy is released by the new element and at a half life
 later a Beta Plus decay process occurs which releases more energy.  The
 Beta Plus decay leaves us with Ni61.  The energy release is composed of
 two parts as we progress from Ni60 to Ni61.
 Now, instead of adding a proton, let’s allow a neutron to encounter the
 Ni60 nucleus.  In this case a stable isotope of nickel Ni61 is directly
 formed and a significant amount of energy is released.
 I followed both of these processes through several different elements and
 can state that the same total energy is released regardless of the path
 taken when I start with an isotope of an element and end at the same final
 product.   I consider this an important and useful observation.
 A second issue I would like to discuss is also interesting and leads to
 some neat results.  The above rule that I found makes it impossible to
 have two stable isotopes of elements with the same number of nucleons that
 are one level apart.  An example of this rule would be that since He3 is
 stable, then H3 cannot be.   Or, since Ni61 is stable, then Cu61 is
 unstable.  This appears to apply throughout the entire list of elements
 and I would appreciate it for others to verify this conclusion.
 I have a couple of additional concepts that I plan to present at a later
 time, so for now review what I have observed and please make relevant
 comments.
 Dave



Re: [Vo]: Nuclear Stability and Proton or Neutron Addition

2012-06-12 Thread Alain Sepeda
I won't be surprised if he use raw nickel, and pretend it enriched just as
he say COP is limited to 6, that gamma heat the lead...
to fool the pursuers...

by the way the idea that only the beginning and end of the reaction account
for energy release is normal.
We just have to remind about the neutrino kinetic energy, but it is small
(linked to conservation of momentum, and thus initial and final momentum of
other particles, that we should notice if huge).


one hypothesis about normal isotopic ratio in transmuted copper, is that
the result is the same as nature, because the process is the same...
Larsen talk about R and S nucleosynthetis process, not so different from WL
(or similar neutron or hydrino absorption)

another hypothesis is manipulation or mistake. With Rossi this is not to
exclude.

about guessing the theory, the results of Iwamura give strong data.
in fact not the results (which just show nucleon+nucleus reaction), but the
initial condition which are very controlled and simpler compared to SPAWAR,
FP, Celani, Piantelli...

Some should analyse if they match ES crack theory, WL surface theory,
Brillouin bulk Q-wave theory, Takahashi bulk TSC theory, Kim zubarev theory.

if we can divide by 2 the number of theories it should be good.
This experiment was very controlled, so it should eliminate some hypothesis.

2012/6/12 pagnu...@htdconnect.com

 Your question of whether Rossi or W-L are correct (if either is) made me
 want to check whether a cascade of neutron captures suggested by W-L were
 consistent with Rossi's reports.

 Using the data from the wiki-page on masses and half-lives for Ni-isotopes
 http://en.wikipedia.org/wiki/Isotopes_of_nickel
 -- it appears that the sequence of neutron captures are all exothermic -
 58Ni
  | (8.2 Mev)
 59Ni
  | (10.5 Mev)
 60Ni
  | (7.0 Mev)
 61Ni   (energy released)
  | (9.8 Mev)
 62Ni
  | (6.1 Mev)
 63Ni
  | (8.9 Mev)
 64Ni
  | (5.3 Mev)
 65Ni -- 65Cu (stable)
  | (8.1 Mev)
 66Ni -- 66Cu -- 66Zn (stable)

 (The ~780 Kev cost of electron capture is subracted from energy figures.)
 From 58Ni through 64Ni, half-lives are very long.
 After 66Ni, half-lives become too short to provide much transmutation
 ash.

 If we start with off-the-shelf Ni (normal isotopic mix), it looks like
 very little Cu63 would result, but there could be significant amounts of
 65Cu and some 66Zn.  The distribution of 58Ni-64Ni should show enhanced
 concentrations of the heavier Ni-isotopes.

 Rossi claims he use Ni enriched in 62Ni and 64Ni in the e-cat.  Unless
 they have significantly larger cross-sections to capture low energy
 neutrons, the enrichment would probably not help if W-L neutrons are
 responsible.

 (The Lattice Energy website on Nickel-Seed LENR Networks that may have a
 more complete analysis than mine.)

 Rossi claims the e-cat LENR results from Ni-proton capture.

 -- Lou Pagnucco


 Dave Roberson wrote:
 
  I have been reviewing a table of nuclides in an attempt to make sense of
  the process suggested by WL proponents and those of Rossi.  In the WL
  theory a neutron is formed by the combination of an electron and a proton
  with the .78 MeV of energy being supplied by their process.  This neutron
  then finds its way into a nucleus of nickel in this version of devices
 and
  energy is released.  The final result is the next heavier isotope of
  nickel plus a significant amount of energy.
  The Rossi process involves the insertion of a proton into the nucleus of
  the subject nickel atom forming a new copper atom along with release of
  energy.  Some of the copper isotopes formed by addition of a proton into
  their parent nickel isotopes decay by beta plus action into the next
  heavier nickel isotope along with a release of additional energy.
  The above two paragraphs offer an extremely brief description of the two
  theories.  They are not intended to get into details which can be located
  within many documents.
  My purpose for writing this document is to reveal an interesting
  observation that I have made concerning the two processes.  This may be
  well known to many of the people on the list, but it is new to me and I
  offer it as a refresher.
  If you take any stable isotope of an element, for example nickel 60 and
  either add a neutron as with the WL process or overcome the Coulomb
  barrier by forcing a proton into the nucleus you find an interesting
  result.  In virtually every case only one of these processes leads to a
  stable isotope in a single reaction.  There are only a couple of
  exceptions to this observation and that appears to be when neither
 process
  results in a single step stable new atom.   Of course the newly created
  atoms will all eventually decay in steps until a stable result is
  obtained.
  I further notice that the end result of the two processes is the same
  nuclide.  An example is as follows: Start with Ni60 and add a proton to
 it
  by forcing the particle against the Coulomb 

[Vo]:Detecting a transmutation - bismuth - polonium

2012-06-12 Thread Robert McKay

Hi Vortex,

I was wondering what might be the best way to try transmuting bismuth 
into radioactive polonium. I was thinking something along the lines of 
taking some bismuth powder, loading it with pressurised deuterium or 
hydrogen gas that had been sparked with a spark plug for a while.. any 
chance that some of it might turn into polonium? Maybe mix some carbon 
dust in there too in case that helps.


Basically my thinking is that while calorimetry is tricky when dealing 
with low amounts of excess heat, it might be much easier to measure the 
presence of even tiny amounts of radioactivity. What do you think?


Cheers,
Rob



RE: [Vo]:Detecting a transmutation - bismuth - polonium

2012-06-12 Thread Jones Beene
You should probably contact Horace Heffner on this. He is not active on Vortex 
currently, but he may respond to direct email.

Horace apparently thinks Bismuth is a good candidate for LENR, whereas 'on 
paper' it would seem to be poor, due to extremely low cross-section for thermal 
neutrons and large nuclear Coulomb charge.

http://www.mtaonline.net/~hheffner/dfRpt


-Original Message-
From: Robert McKay 
Subject: [Vo]:Detecting a transmutation - bismuth - polonium

Hi Vortex,

I was wondering what might be the best way to try transmuting bismuth 
into radioactive polonium. I was thinking something along the lines of 
taking some bismuth powder, loading it with pressurised deuterium or 
hydrogen gas that had been sparked with a spark plug for a while.. any 
chance that some of it might turn into polonium? Maybe mix some carbon 
dust in there too in case that helps.

Basically my thinking is that while calorimetry is tricky when dealing 
with low amounts of excess heat, it might be much easier to measure the 
presence of even tiny amounts of radioactivity. What do you think?

Cheers,
Rob





Re: [Vo]:Criticism of piezonuclear experiments

2012-06-12 Thread Harry Veeder
If you read between the lines, they are accusing Cardone and
Carpinteri of either incompetency or fraud.

harry

On Mon, Jun 11, 2012 at 11:20 PM,  pagnu...@htdconnect.com wrote:
 Remarks on Piezonuclear neutrons from fracturing of inert solids

 http://arxiv.org/abs/1206.1863






Re: [Vo]:Criticism of piezonuclear experiments

2012-06-12 Thread Harry Veeder
Carpinteri responds to some of hic critics on Passerini's Blog
(google provides a pretty good translation)
http://22passi.blogspot.ca/2012/06/risposta-del-prof-carpinteri-gerardo.html


Here Passerini catalogues and examines more of the virtrol and
criticism levelled against piezonucleare.
http://22passi.blogspot.ca/2012/06/dal-processo-sommario-frutto-di_12.html
(I like Passerini's expression che energia dalle pietre which google
translates as energy from the stones)


harry

On Tue, Jun 12, 2012 at 11:51 AM, Harry Veeder hveeder...@gmail.com wrote:
 If you read between the lines, they are accusing Cardone and
 Carpinteri of either incompetency or fraud.

 harry

 On Mon, Jun 11, 2012 at 11:20 PM,  pagnu...@htdconnect.com wrote:
 Remarks on Piezonuclear neutrons from fracturing of inert solids

 http://arxiv.org/abs/1206.1863






[Vo]:Lattice Energy's latest paper

2012-06-12 Thread pagnucco
Lewis Larsen has very recently posted a new paper --

Electroweak Neutron Production via e+p---n+v and Capture during Lightning
Discharges
http://www.slideshare.net/fullscreen/lewisglarsen/lattice-energy-llc-electroweak-neutron-production-and-capture-during-lightning-dischargesjune-7-2012/1

Larsen is making testable predictions.

He proposes that since lighting discharges involve dense, coherent, intense
electron currents, they should create thermal neutrons (via W-L theory
electron capture e+p -- n+v) that result (after ~ 4 billion years) in the
nitrogen and oxygen isotopic mixtures that exist today. He also cites the
transmutations seen in exploding tungsten wire experiments.

Can Larsen's theory be tested by placing several devices such as ---


  |  +-- INSULATING BOX
 LIGHTNING ROD ---|  |
  |  V
  |_
 ||---+||
 ||   |||
 ||   |||  W = Tungsten wires
 ||   |W   ||  (variable sizes)
 ||W  |  W ||
 ||  +--+-+- ...+  ||  NNN = N-rich molecules
 ||  |  | | |  ||  OOO = O-rich molecules
 ||  |  | | |  ||
 ||  |  | |spark|  ||
 ||  =  = =  -- gaps--  =  ||
 ||  |  | | |  ||  Spark gaps with varying
 ||  |  | | |  ||  sizes and geometries
 ||  +--+-+- ...+  ||
 ||W  |  W ||
 ||   |||
 ||  NNN  |  OOO   ||
 ||---+||
 -|--
  |
-
 \ / GND
  V

--- at points where lightning strikes are very common, e.g.,
forest park watch towers, radio towers, sky scrapers, ...?

This would only require access to a machine shop, and a fee to a mass
spectrometry lab.

If design and theory are correct, W, N, O transmutations could occur.

Possibly, just a few free-standing gapped W-lightning rods would suffice.

Does anyone know if the Proton-21 results presented in --
A Review of Transmutation and Clustering in Low Energy Nuclear Reactions
- Prelas, Miley, et al,   research.missouri.edu/vcr_seminar/Prelas.ppt
-- could be checked this way?

While a negative result would not be completely definitive, a positive one
would certainly be.

--- Lou Pagnucco




Re: [Vo]:FYI: Theorem unifies superfluids and other weird materials...

2012-06-12 Thread Michael Foster
One presumes they mean hypothesis or perhaps theory. The term theorem does 
not apply this idea. An attempt at such pedantic erroneous usage usually 
qualifies the proponent as a fool.

--- On Mon, 6/11/12, MarkI-ZeroPoint zeropo...@charter.net wrote:

 From: MarkI-ZeroPoint zeropo...@charter.net
 Subject: [Vo]:FYI: Theorem unifies superfluids and other weird materials...
 To: vortex-l@eskimo.com
 Date: Monday, June 11, 2012, 11:43 PM
 Theorem unifies superfluids and
 other weird materials
 
  
 
 http://newscenter.berkeley.edu/2012/06/08/theorem-unifies-superfluids-and-ot
 her-weird-materials/
 
  
 
 Don't know if Storms' NAE qualifies for 'weird materials',
 but I'd bet it
 does...
 
  
 
 -mark
 
  
 
  
 
 



Re: [Vo]:Lattice Energy's latest paper

2012-06-12 Thread Axil Axil
 Regarding:

research.missouri.edu/vcr_seminar/Prelas.ppt


I find it revealing that many if not all of the experiments showing signs
of cold fusion activity include compounds which demonstrate a very low work
function.



This is significant because these compounds can generate positive
electrostatic charge accumulation on their own accord without any external
electric potential applied. These thermionic materials will expel electrons
from their surface leaving positive charge accumulation behind.



A good example is calcium oxide: a potent and possibly the best thermionic
material around. Its work function varies from about a minuscule 2.0 to as
little as .7 based on conditions and temperature.



My opinion is that this coherent positive charge accumulation is one of the
important underlying causes of cold fusion.



Cheers:  Axil










On Tue, Jun 12, 2012 at 4:16 PM, pagnu...@htdconnect.com wrote:

 Lewis Larsen has very recently posted a new paper --

 Electroweak Neutron Production via e+p---n+v and Capture during Lightning
 Discharges

 http://www.slideshare.net/fullscreen/lewisglarsen/lattice-energy-llc-electroweak-neutron-production-and-capture-during-lightning-dischargesjune-7-2012/1

 Larsen is making testable predictions.

 He proposes that since lighting discharges involve dense, coherent, intense
 electron currents, they should create thermal neutrons (via W-L theory
 electron capture e+p -- n+v) that result (after ~ 4 billion years) in the
 nitrogen and oxygen isotopic mixtures that exist today. He also cites the
 transmutations seen in exploding tungsten wire experiments.

 Can Larsen's theory be tested by placing several devices such as ---


  |  +-- INSULATING BOX
 LIGHTNING ROD ---|  |
  |  V
  |_
  ||---+||
  ||   |||
  ||   |||  W = Tungsten wires
  ||   |W   ||  (variable sizes)
  ||W  |  W ||
  ||  +--+-+- ...+  ||  NNN = N-rich molecules
  ||  |  | | |  ||  OOO = O-rich molecules
  ||  |  | | |  ||
  ||  |  | |spark|  ||
  ||  =  = =  -- gaps--  =  ||
  ||  |  | | |  ||  Spark gaps with varying
  ||  |  | | |  ||  sizes and geometries
  ||  +--+-+- ...+  ||
  ||W  |  W ||
  ||   |||
  ||  NNN  |  OOO   ||
  ||---+||
  -|--
  |
-
 \ / GND
  V

 --- at points where lightning strikes are very common, e.g.,
forest park watch towers, radio towers, sky scrapers, ...?

 This would only require access to a machine shop, and a fee to a mass
 spectrometry lab.

 If design and theory are correct, W, N, O transmutations could occur.

 Possibly, just a few free-standing gapped W-lightning rods would suffice.

 Does anyone know if the Proton-21 results presented in --
 A Review of Transmutation and Clustering in Low Energy Nuclear Reactions
 - Prelas, Miley, et al,   research.missouri.edu/vcr_seminar/Prelas.ppt
 -- could be checked this way?

 While a negative result would not be completely definitive, a positive one
 would certainly be.

 --- Lou Pagnucco





RE: [Vo]:FYI: Theorem unifies superfluids and other weird materials...

2012-06-12 Thread MarkI-ZeroPoint
Sorry Michael, but judging someone simply based on their choice of words,
especially with the global connectivity of the internet where the person's
English might be limited, is a very poor way to determine validity of the
person's ideas... you certainly can do so, but I prefer not to.

Perhaps you don't have the scientific/mathematical expertise to judge them
on the merits of the published paper??? Have you at least read it?

-Mark

-Original Message-
From: Michael Foster [mailto:mf...@yahoo.com] 
Sent: Tuesday, June 12, 2012 3:32 PM
To: vortex-l@eskimo.com
Subject: Re: [Vo]:FYI: Theorem unifies superfluids and other weird
materials...

One presumes they mean hypothesis or perhaps theory. The term theorem does
not apply this idea. An attempt at such pedantic erroneous usage usually
qualifies the proponent as a fool.

--- On Mon, 6/11/12, MarkI-ZeroPoint zeropo...@charter.net wrote:

 From: MarkI-ZeroPoint zeropo...@charter.net
 Subject: [Vo]:FYI: Theorem unifies superfluids and other weird
materials...
 To: vortex-l@eskimo.com
 Date: Monday, June 11, 2012, 11:43 PM
 Theorem unifies superfluids and
 other weird materials
 
  
 
 http://newscenter.berkeley.edu/2012/06/08/theorem-unifies-superfluids-
 and-ot
 her-weird-materials/
 
  
 
 Don't know if Storms' NAE qualifies for 'weird materials', but I'd bet 
 it does...
 
  
 
 -mark
 
  
 
  
 
 




Re: [Vo]:FYI: Theorem unifies superfluids and other weird materials...

2012-06-12 Thread Axil Axil
The use of the term theorm is appropreate because the work was done in the
framework of mathematical physics.



Reference:: “It is a wonderful piece of work in mathematical physics”


Exampe: Theorems in mathematical physics  C

   - Chasles' theorem http://en.wikipedia.org/wiki/Chasles%27_theorem

E

   - Edge-of-the-wedge
theoremhttp://en.wikipedia.org/wiki/Edge-of-the-wedge_theorem

G

   - Gell-Mann and Low
theoremhttp://en.wikipedia.org/wiki/Gell-Mann_and_Low_theorem
   - Generalized Helmholtz
theoremhttp://en.wikipedia.org/wiki/Generalized_Helmholtz_theorem

 G cont.

   - Geroch's splitting
theoremhttp://en.wikipedia.org/wiki/Geroch%27s_splitting_theorem
   - Goldstone boson http://en.wikipedia.org/wiki/Goldstone_boson

H

   - Helmholtz's theoremshttp://en.wikipedia.org/wiki/Helmholtz%27s_theorems

P

   - Peeling theorem http://en.wikipedia.org/wiki/Peeling_theorem

 S

   - Stone–von Neumann
theoremhttp://en.wikipedia.org/wiki/Stone%E2%80%93von_Neumann_theorem

W

   - Wigner–Eckart
theoremhttp://en.wikipedia.org/wiki/Wigner%E2%80%93Eckart_theorem


Cheers:  Axil


On Tue, Jun 12, 2012 at 6:31 PM, Michael Foster mf...@yahoo.com wrote:

 One presumes they mean hypothesis or perhaps theory. The term theorem
 does not apply this idea. An attempt at such pedantic erroneous usage
 usually qualifies the proponent as a fool.

 --- On Mon, 6/11/12, MarkI-ZeroPoint zeropo...@charter.net wrote:

  From: MarkI-ZeroPoint zeropo...@charter.net
  Subject: [Vo]:FYI: Theorem unifies superfluids and other weird
 materials...
  To: vortex-l@eskimo.com
  Date: Monday, June 11, 2012, 11:43 PM
  Theorem unifies superfluids and
  other weird materials
 
 
 
 
 http://newscenter.berkeley.edu/2012/06/08/theorem-unifies-superfluids-and-ot
  her-weird-materials/
 
 
 
  Don't know if Storms' NAE qualifies for 'weird materials',
  but I'd bet it
  does...
 
 
 
  -mark
 
 
 
 
 
 




[Vo]:coal down gas up

2012-06-12 Thread fznidarsic
http://tribune-democrat.com/local/x1318685928/US-coal-use-falling-fast-utilities-switch-to-gas

[Vo]:cracks

2012-06-12 Thread Axil Axil
Reference:



http://phys.org/news/2012-06-rutgers-granular-slip-documents-voltage-video.html



The following work shows a connection between micro cracks and voltage
generation.



This fits in with Ed storms cold fusion crack theory, and my belief that
voids produce one- dimensional electrical flow due to the long thin
topological nature of the void.



If you remember how X-rays are produced by tape



http://www.nature.com/news/2008/012345/full/news.2008.1185.html



It is basically the same topological materials principle at work.


Re: [Vo]:cracks

2012-06-12 Thread Terry Blanton
http://www.nytimes.com/2007/06/19/science/19winto.html



Re: [Vo]: Nuclear Stability and Proton or Neutron Addition

2012-06-12 Thread Eric Walker
On Tue, Jun 12, 2012 at 2:12 AM, Alain Sepeda alain.sep...@gmail.comwrote:


 one hypothesis about normal isotopic ratio in transmuted copper, is that
 the result is the same as nature, because the process is the same...
 Larsen talk about R and S nucleosynthetis process, not so different from
 WL (or similar neutron or hydrino absorption)


I think the rate of flux is an important variable.  With a high flux, the
isotope ratios that result after everything has settled will be different
than with those after an anemic flux.  It is possible that you would need a
similar flux to what occurs during r-process nucleosynthesis in supernovae
to get similar ratios.  Such a flux is generally very high.  But another
variable here is the speed of the neutrons.  I suppose those emanating from
a supernova will be traveling very fast, and if you had much slower ones,
the flux might not need to be high to get comparable ratios.

Ed Storms brings up an excellent point about neutron-based explanations.
 Here is my elaboration:  it is true that the neutron-capture cross section
goes way down when the neutrons are very slow.  But that's a relative
change of what is normally measured at higher energies, and even with a
hypothesized momentum near or at zero, the cross section will not be
infinite.  So there will be some elastic collisions with atoms in the
environment, and some of the neutrons can be expected to thermalize and
exit the system.  You would then expect to see a substantial number of
these be picked up in a detector, but this is not seen.

Eric