Posted on 08/29/2021 7:44:40 AM PDT by Kevmo
Uchikoshi: Laser Condensed-Matter Fusion Experiments. Oral and Poster
Takeru Uchikoshi, Shunsuke Ono, Yuki Nakashima, Yuta Kitagawa, Katsuaki Tanabe* Department of Chemical Engineering, Kyoto University, Japan * Email: tanabe@cheme.kyoto-u.ac.jp
The intensity and density of the triggering energy supplied to activate the nuclear fusion reaction are key factors to produce a smooth and reproducible initiation of the reaction. We previously proposed and numerically analyzed a scheme to provide high-density optical or electromagnetic energy to fusion-fuel materials by lasers and plasmonic field-enhancement effects, to significantly increase the reaction probability [1,2].
In another project, we experimentally observed temporal behaviors of heat generation unable to be explained by known chemical processes, and neutron signal peaks at timings corresponding to the accelerated temperature increases, in current-injected PdDx [3].
In the present work, we have installed multiple kinds of lasers in the gas-phase D-Pd reaction system to irradiate the Pd samples, as an energetic stimulation support, potentially with a boosting plasmonic local fieldenhancement effect [4].
The lasers are 405-nm and 594-nm continuous-wave semiconductor lasers with powers of 50 and 30 mW, respectively, and a 1064-nm pulsed YAG laser with a peak power of 10 MW. Similarly to our previous work, we have simultaneously observed a sudden temperature increase with an overshoot and a neutron signal (Fig. 1).
Significantly, we have observed a clear signal of substantial-amount 4He generation from the Pd samples as a shoulder peak on the D2 peak (Fig. 2), and a possible 3He signal, via in-situ mass spectroscopy. We have also observed a sudden burst of these gas species out of the Pd sample (Fig. 3). Our results might indicate a certain anomalous nuclear-related reaction in the D-Pd system.
The experimental conditions and outcomes will be presented in detail at the conference.
Fig. 1 Temporal behavior. Fig. 2 Mass spectra for amu = 4. Fig. 3 Pressure evolution.
(Note: Data are not from a single experimental run, but from independent ones for each of Figs. 1-3.)
This work was financially supported, in part, by the Thermal & Electric Energy Technology Foundation and the Research Foundation for Opto-Science and Technology.
[1] K. Tanabe, “Plasmonic concepts for condensed-matter nuclear fusion,” ICCF-20, X-4, Sendai, 2016 / J. Cond. Matter Nucl. Sci. 24, 296, 2017. [2] K. Tanabe, “Plasmonic field enhancement on planar metal surfaces,” ICCF-21, N-3, Fort Collins, 2018 / J. Cond. Matter Nucl. Sci. 27, 152, 2018. [3] Y. Kitagawa, S. Ono, Y. Hayashi, E. Yamaguchi, K. Tanabe, “Direct Joule heating of D-loaded bulk Pd plates in vacuum,” ICCF-21, K-3, Fort Collins, 2018. [4] N. Fukuoka, K. Tanabe, “Large plasmonic field enhancement on hydrogen-absorbing transition metals at lower frequencies: Implications for hydrogen storage, sensing, and nuclear fusion,” J. Appl. Phys. 126, 023102, 2019.
for the cold fusion ping list
Supposedly would solve the climate change problem. We’ll see.
Bkmk
“Shining relatively low energy lasers ....”
Ten MW is not ‘low power’!
a 1064-nm pulsed YAG laser with a peak power of 10 MW.
The Cold Fusion/LENR Ping List
http://www.freerepublic.com/tag/coldfusion/index?tab=articles
Keywords: ColdFusion; LENR; lanr; CMNS
chat—science
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Vortex-L
http://tinyurl.com/pxtqx3y
Best book to get started on this subject:
EXCESS HEAT
Why Cold Fusion Research Prevailed by Charles Beaudette
https://www.abebooks.com/9780967854809/Excess-Heat-Why-Cold-Fusion-0967854806/plp
Updated No Internal Trolling Rules for FR per Jim Robinson
https://freerepublic.com/focus/f-news/3928396/posts
If someone says stop, then stop. Do not enter onto a thread on a topic you don’t like just to disrupt, rattle cages, poke sticks, insult the regulars, or engage in trolling activities, etc. ~Jim Robinson
Please refrain from posting anything that doesn’t legitimately address the issue.
Something is going on in this segment of science. There are a considerable number of research groups studying the matter. -Sidebar Moderator
Obtaining fusion would be a world changer.
Peak power, not continuous. The other lasers are in the milliwatt continuous range.
“The lasers are 405-nm and 594-nm continuous-wave semiconductor lasers with powers of 50 and 30 mW, respectively,”
Low power.
The key moving forward will be the low power results, not the high power results.
Mastromatteo used a 5mW laser.
https://freerepublic.com/focus/f-chat/3968011/posts
Oops, I just realized this guy was one of our more aggressive seagulls. Notice how he blithely goes over the POINT of what I wrote just to focus on some minor, easily-addressible factual issue. The anti-science attitude is just oozing out of him, he can’t help it. And in the past he goes out of his way to justify his actions rather than just leaving us alone like the moderator said to do.
He aint here to discuss science, he’s here to disrupt the discussion.
““The lasers are 405-nm and 594-nm continuous-wave semiconductor lasers with powers of 50 and 30 mW, respectively,”
Low power.”
You excerpted “ and a 1064-nm pulsed YAG laser with a peak power of 10 MW.”
HIGH POWER!
Lurkers will note that multiple times in the past, TexasGator has been asked to leave these threads. His interest is not in furthering scientific discussion, his interest is in causing trouble and simply being an @$$#0/e.
“Lurkers will note that multiple times in the past, TexasGator has been asked to leave these threads. His interest is not in furthering scientific discussion, his interest is in causing trouble and simply being an @$$#0/e.”
I only posted a quote from your article. ...
But note the multiple violations of FreeRepublic posting guidelines in your post.
He always follows up with a baldfaced justification for his harmful actions. He’s simply a jerk.
If he was REALLY interested in ‘multiple violations’ he would just open up a thread about that topic but his primary interest is in hijacking these threads. Simple @$$#0/e.
Thanks Kevmo.
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