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#accelerators

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Stephen Brooks 🦆<p>Today I gave a talk on prospects for using ultra-low emittance beams in colliders, including this video of making a "long nucleus" at a nuclear-density focus. <br> <br>This and several other good talks on the page below: <br><a href="https://agenda.infn.it/event/47981/timetable/#20250730.detailed" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">agenda.infn.it/event/47981/tim</span><span class="invisible">etable/#20250730.detailed</span></a> </p><p><a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a></p>
Stephen Brooks 🦆<p>Today was the first day of a meeting on far future colliders at the Galileo Galilei Institute. Looks like it should be very interesting: <a href="https://ggi.infn.it/showevent.pl?id=509" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">ggi.infn.it/showevent.pl?id=509</span><span class="invisible"></span></a><br><a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>The ion trap experiment now has an electron beam and a camera. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>Using the "real" 4K USB camera rather than my smartphone gets a better image of the electron beam hitting the screen. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>Here's what some of our <a href="https://mstdn.io/tags/magnets" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>magnets</span></a> and fixed-field accelerator designs are being used for. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p><p><a href="https://www.bnl.gov/newsroom/news.php?a=222471" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bnl.gov/newsroom/news.php?a=22</span><span class="invisible">2471</span></a></p>
Stephen Brooks 🦆<p>The electrodes moving the 500eV electron beam. One is 2Hz and 3Hz (+/-10V on the electrodes), one is 2MHz and 2.000001MHz. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>Got a slightly more convincing beam spot by messing with the settings, maybe 0.5uA? (500eV e-) <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>It's small (70nA) but I got first beam out of the electron gun in my ion trap experiment. It's the dim green spot that shows up on the near screen, or the line on the far screen, where I steered it using the gun's built-in electrodes but it also changed the shape! There's also a photo with flash to show the screens. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p><p>They said to wait for better vacuum levels before increasing the current.</p>
OpenMP ARB<p>📍 Paris, France<br>🗓 OpenMP ARB Face-to-Face Meeting</p><p>The OpenMP Architecture Review Board (ARB) is meeting in Paris this week for an intensive 5-day session focused on OpenMP 6.1 development - the next evolution of the API for parallel programming across embedded systems, accelerators, and multicore platforms.</p><p>Grateful for the collaboration and commitment of participants in moving OpenMP forward!</p><p><a href="https://mast.hpc.social/tags/OpenMP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenMP</span></a> <a href="https://mast.hpc.social/tags/HPC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HPC</span></a> <a href="https://mast.hpc.social/tags/ParallelProgramming" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ParallelProgramming</span></a> <a href="https://mast.hpc.social/tags/OpenMP61" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OpenMP61</span></a> <a href="https://mast.hpc.social/tags/Embedded" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Embedded</span></a> <a href="https://mast.hpc.social/tags/Accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Accelerators</span></a></p>
Stephen Brooks 🦆<p>Today we put 70-250MeV protons through a non-scaling fixed-field beamline, the highest energy ever for this sort of beamline! It bends by 22.5° using 1.85 Tesla permanent magnets. Here is the 250MeV beam leaving at the largest radius (right of screen). <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a></p>
Blake Patterson<p>I am looking for an Amiga 2000 CPU accelerator that features a physical enable/disable switch.</p><p>Anyone have one sitting around they're looking to sell? I'm using a 68020 accelerator now, so anything would be faster.</p><p><a href="https://oldbytes.space/tags/Amiga" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Amiga</span></a> <a href="https://oldbytes.space/tags/Amiga2000" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Amiga2000</span></a> <a href="https://oldbytes.space/tags/hardware" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hardware</span></a> <a href="https://oldbytes.space/tags/vintagecomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>vintagecomputing</span></a> <a href="https://oldbytes.space/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputing</span></a> <a href="https://oldbytes.space/tags/retrocomputers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputers</span></a> <a href="https://oldbytes.space/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <a href="https://oldbytes.space/tags/CommodoreAmiga" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CommodoreAmiga</span></a> <a href="https://oldbytes.space/tags/MC68K" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MC68K</span></a> <a href="https://oldbytes.space/tags/Motorola" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Motorola</span></a></p>
Stephen Brooks 🦆<p>Article on another <a href="https://mstdn.io/tags/magnet" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>magnet</span></a> in the UK I've been involved with. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <br><a href="https://www.isis.stfc.ac.uk/Pages/TH25_FFA.aspx" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">isis.stfc.ac.uk/Pages/TH25_FFA</span><span class="invisible">.aspx</span></a></p>
Stephen Brooks 🦆<p>Article on Halbach <a href="https://mstdn.io/tags/magnets" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>magnets</span></a> that I've been involved in designing for the BNL light source upgrade. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <br><a href="https://www.bnl.gov/newsroom/news.php?a=222283" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bnl.gov/newsroom/news.php?a=22</span><span class="invisible">2283</span></a></p>
Aike<p>Started in March 2025 as Entrepreneur in Residence (EIR) at Exel Gaming Accelerator. Main focus on technical and production support for teams participating in the accelerator, project evaluation, and contributing to workflow improvements within the program.</p><p><a href="https://mastodon.gamedev.place/tags/gamedev" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gamedev</span></a> <a href="https://mastodon.gamedev.place/tags/exelbymerak" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>exelbymerak</span></a> <a href="https://mastodon.gamedev.place/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <a href="https://mastodon.gamedev.place/tags/gaming" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gaming</span></a></p>
Stephen Brooks 🦆<p>Here's the other big connector plugged in for the electron gun. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>My electron gun comes with a countdown timer, I think it's preparing the emission filament for use. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <br>(Side note: I don't know wtf I am doing, never turned one of these on before, just following the manual and pressing buttons.)</p>
Stephen Brooks 🦆<p>It's almost time to go on Friday but I can attach these thick cables. Grey is 32 channels of +/-150V, black is up to 2kV for the electron gun. <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
Stephen Brooks 🦆<p>Walking around the ion trap experiment (April 14, 2025). <a href="https://mstdn.io/tags/physics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>physics</span></a> <a href="https://mstdn.io/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a></p>
UK<p><a href="https://www.europesays.com/uk/34168/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">europesays.com/uk/34168/</span><span class="invisible"></span></a> Techstars increases startup funding to $220,000, mirroring YC structure <a href="https://pubeurope.com/tags/accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>accelerators</span></a> <a href="https://pubeurope.com/tags/Business" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Business</span></a> <a href="https://pubeurope.com/tags/Entrepreneurship" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Entrepreneurship</span></a> <a href="https://pubeurope.com/tags/TechStars" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TechStars</span></a> <a href="https://pubeurope.com/tags/terms" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>terms</span></a> <a href="https://pubeurope.com/tags/UK" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UK</span></a> <a href="https://pubeurope.com/tags/UnitedKingdom" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UnitedKingdom</span></a> <a href="https://pubeurope.com/tags/YCombinator" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>YCombinator</span></a></p>
Europe Says<p><a href="https://www.europesays.com/2008443/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">europesays.com/2008443/</span><span class="invisible"></span></a> Techstars increases startup funding to $220,000, mirroring YC structure <a href="https://pubeurope.com/tags/Accelerators" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Accelerators</span></a> <a href="https://pubeurope.com/tags/business" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>business</span></a> <a href="https://pubeurope.com/tags/Entrepreneurship" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Entrepreneurship</span></a> <a href="https://pubeurope.com/tags/TechStars" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TechStars</span></a> <a href="https://pubeurope.com/tags/terms" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>terms</span></a> <a href="https://pubeurope.com/tags/YCombinator" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>YCombinator</span></a></p>