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Combined display of all available logs of Citizendium. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).
- 10:00, 1 September 2024 David MacQuigg talk contribs uploaded File:Maxwell's Daemon.jpg ({{Image_Details |description = Maxwell, the daemon who separates isotopes of uranium |author = Students of Christian Hafner |copyright = GNU Free Documentation License |source = https://pymilter.org/ Stuart Gathman |date-created = 2020 |pub-country = USA |notes = Originally used to filter spam in email systems, recently used in uranium enrichment centrifuges. |versions = }})
- 10:00, 1 September 2024 David MacQuigg talk contribs created page File:Maxwell's Daemon.jpg ({{Image_Details |description = Maxwell, the daemon who separates isotopes of uranium |author = Students of Christian Hafner |copyright = GNU Free Documentation License |source = https://pymilter.org/ Stuart Gathman |date-created = 2020 |pub-country = USA |notes = Originally used to filter spam in email systems, recently used in uranium enrichment centrifuges. |versions = }})
- 10:53, 11 August 2024 David MacQuigg talk contribs uploaded File:Reactor Safety cartoon.jpeg ({{Image_Details |description = Early reactor safety features |author = Raymond Murray |copyright = |source = https://twitter.com/DAWargowski/status/1731517414389477604 |date-created = |pub-country = USA |notes = |versions = }})
- 10:53, 11 August 2024 David MacQuigg talk contribs created page File:Reactor Safety cartoon.jpeg ({{Image_Details |description = Early reactor safety features |author = Raymond Murray |copyright = |source = https://twitter.com/DAWargowski/status/1731517414389477604 |date-created = |pub-country = USA |notes = |versions = }})
- 12:13, 6 August 2024 David MacQuigg talk contribs uploaded a new version of File:Neutron Absorption vs. Energy (eV).jpg (better colors and line style)
- 05:12, 6 August 2024 David MacQuigg talk contribs uploaded File:Neutron Absorption vs. Energy (eV).jpg ({{Image_Details |description = Neutron absorption showing Doppler Broadening of absorption lines |author = David MacQuigg |copyright = CC-BY-SA |source = https://docs.google.com/spreadsheets/d/1Zg6oSowPP5HtRITqSkQw7GhVjKzcsaaChlSYJ1P6SRI/edit?usp=sharing |date-created = Aug 2024 |pub-country = USA |notes = simple idealized calculation |versions = }})
- 05:12, 6 August 2024 David MacQuigg talk contribs created page File:Neutron Absorption vs. Energy (eV).jpg ({{Image_Details |description = Neutron absorption showing Doppler Broadening of absorption lines |author = David MacQuigg |copyright = CC-BY-SA |source = https://docs.google.com/spreadsheets/d/1Zg6oSowPP5HtRITqSkQw7GhVjKzcsaaChlSYJ1P6SRI/edit?usp=sharing |date-created = Aug 2024 |pub-country = USA |notes = simple idealized calculation |versions = }})
- 22:06, 5 August 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Reactor Safety (Created page with "=Reactor Safety= ==Negative Temperature Feedback== ===Thermal Expansion=== ===Doppler Broadening of Absorption Lines=== '''from https://jackdevanney.substack.com/p/nuclear-magic-wheres-the-throttle''': Figure 1. A U-238 resonance at an energy level of 6.67 eV. Vertical scale is likelihood of absorption. At low temps only the few neutrons right around 6.67 eV can be absorbed. As the U-238 heats up, more and more neutrons are candidates for absorption There is a widespr...")
- 10:26, 5 August 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Resonant Abosorption (copy of Jack Devanney's article)
- 04:21, 4 August 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Separative Work Units (draft section on SWU calculation)
- 10:14, 27 July 2024 David MacQuigg talk contribs uploaded File:SWUfunction.jpg (== Summary == {{Image_Details |description = Logarithmic function used in calculating Separative Work Units |author = David MacQuigg |copyright = Public Domain |source = https://drive.google.com/file/d/1-e1ZDXETMkXvFdWPW0mMdHWSKVa3YW5a/view?usp=sharing |date-created = 2024 |pub-country = USA |notes = A Separative Work Unit (SWU) is a measure of the "work" needed to enrich uranium. |versions = }} == Licensing == {{PD|author}})
- 10:14, 27 July 2024 David MacQuigg talk contribs created page File:SWUfunction.jpg (== Summary == {{Image_Details |description = Logarithmic function used in calculating Separative Work Units |author = David MacQuigg |copyright = Public Domain |source = https://drive.google.com/file/d/1-e1ZDXETMkXvFdWPW0mMdHWSKVa3YW5a/view?usp=sharing |date-created = 2024 |pub-country = USA |notes = A Separative Work Unit (SWU) is a measure of the "work" needed to enrich uranium. |versions = }} == Licensing == {{PD|author}})
- 10:56, 24 July 2024 David MacQuigg talk contribs uploaded File:V(x) = (2x-1) ln (x (1-x)).pdf ({{Image_Details |description = Logarithmic function used in calculating Separative Work Units |author = David MacQuigg |copyright = |source = https://docs.google.com/spreadsheets/d/1OyKPyjo6k1ckZVwAh8sfkDEtB5W22VUriBaelK3LWY4/edit?gid=0#gid=0 |date-created = 2024 |pub-country = USA |notes = A Separative Work Unit (SWU) is a measure of the "work" needed to enrich uranium. |versions = }})
- 10:56, 24 July 2024 David MacQuigg talk contribs created page File:V(x) = (2x-1) ln (x (1-x)).pdf ({{Image_Details |description = Logarithmic function used in calculating Separative Work Units |author = David MacQuigg |copyright = |source = https://docs.google.com/spreadsheets/d/1OyKPyjo6k1ckZVwAh8sfkDEtB5W22VUriBaelK3LWY4/edit?gid=0#gid=0 |date-created = 2024 |pub-country = USA |notes = A Separative Work Unit (SWU) is a measure of the "work" needed to enrich uranium. |versions = }})
- 13:39, 22 July 2024 David MacQuigg talk contribs created page Separative Work Units (SWUs) (copied from Wikipedia, so can add a spreadsheet with real-world examples, which was deleted by VQuakr on 18 July 2024 with the complaint that it was "Original Research". Cleanup later, I promise.)
- 04:54, 2 July 2024 David MacQuigg talk contribs uploaded File:Lung Cancer - Radon - European Code .png ({{Image_Details |description = Relative risk of lung cancer in relation to long-term residential radon concentrations |author = Neil Mccoll, et.al. |copyright = CC BY-NC-ND 3.0 |source = https://www.researchgate.net/publication/279636244_European_Code_against_Cancer_4th_Edition_Ionising_and_non-ionising_radiation_and_cancer |date-created = 2015 |pub-country = England |notes = |versions = }})
- 04:54, 2 July 2024 David MacQuigg talk contribs created page File:Lung Cancer - Radon - European Code .png ({{Image_Details |description = Relative risk of lung cancer in relation to long-term residential radon concentrations |author = Neil Mccoll, et.al. |copyright = CC BY-NC-ND 3.0 |source = https://www.researchgate.net/publication/279636244_European_Code_against_Cancer_4th_Edition_Ionising_and_non-ionising_radiation_and_cancer |date-created = 2015 |pub-country = England |notes = |versions = }})
- 18:33, 14 June 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/LNT (Created page with "{{Short description|Deprecated model predicting health effects of radiation}} {{Use dmy dates|date=October 2020}} 294px|thumb|right|Different assumptions on the extrapolation of the cancer risk vs. radiation dose to low-dose levels, given a known risk at a high dose:<BR />'''(A)''' supra-linearity, '''(B)''' linear<BR />'''(C)''' linear-quadratic, '''(D)''' hormesis The '''linear no-threshold model''' ('''LNT''') is a dose-response...")
- 01:42, 7 June 2024 David MacQuigg talk contribs uploaded a new version of File:Uranium.png (update June 2024)
- 05:52, 31 May 2024 David MacQuigg talk contribs uploaded File:Conley Fig 7 radon cancer.png ({{Image_Details |description = Lung cancer mortality vs radon exposure. |author = Mike Conley, simplification of Cohen's Figure 1. |copyright = CC-BY-SA |source = Fig.7 in ''Earth is a Nuclear Planet'', Mike Conley. |date-created = 2024 |pub-country = USA |notes = |versions = }})
- 05:52, 31 May 2024 David MacQuigg talk contribs created page File:Conley Fig 7 radon cancer.png ({{Image_Details |description = Lung cancer mortality vs radon exposure. |author = Mike Conley, simplification of Cohen's Figure 1. |copyright = CC-BY-SA |source = Fig.7 in ''Earth is a Nuclear Planet'', Mike Conley. |date-created = 2024 |pub-country = USA |notes = |versions = }})
- 09:37, 20 May 2024 David MacQuigg talk contribs uploaded a new version of File:What-is-the-safest-form-of-energy.png (updated with latest data March 2024)
- 13:36, 12 May 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Laser Fusion (Created page with "{{subpages}} =Nuclear fusion fundamentals= =Magnetic confinement= =Inertial confinement= = Critiques of nuclear fusion as a solution to the CO2 problem = {{Image|Laser Fusion Gain.png|right|350px|Net energy gain from laser fusion.}} [https://www.youtube.com/watch?v=DZb-P5C_08g ''Ignition Omission: Understanding the National Ignition Facility Milestone''] Steven Krivit, [https://news.newenergytimes.net/nif/ New Energy Times] (Dec 21, 2022).<br> "This video explains: 1. Th...")
- 13:39, 6 April 2024 David MacQuigg talk contribs created page File:Proliferation Threats and Barriers IAEA.jpg ({{Image_Details |description = IAEA's table of proliferation threats and barriers |author = Nuclear Fuel Cycle and Materials Section, International Atomic Energy Agency |copyright = © IAEA, 2005 |source = Table 12 in IAEA-TECDOC-1450, 2005, Thorium fuel cycle — Potential benefits and challenges, https://www-pub.iaea.org/mtcd/publications/pdf/te_1450_web.pdf |date-created = 2005 |pub-country = Austria |notes = |versions = }})
- 13:39, 6 April 2024 David MacQuigg talk contribs uploaded File:Proliferation Threats and Barriers IAEA.jpg ({{Image_Details |description = IAEA's table of proliferation threats and barriers |author = Nuclear Fuel Cycle and Materials Section, International Atomic Energy Agency |copyright = © IAEA, 2005 |source = Table 12 in IAEA-TECDOC-1450, 2005, Thorium fuel cycle — Potential benefits and challenges, https://www-pub.iaea.org/mtcd/publications/pdf/te_1450_web.pdf |date-created = 2005 |pub-country = Austria |notes = |versions = }})
- 13:29, 14 March 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear fuel cycle/External Links (copy of old article)
- 13:22, 14 March 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear fuel cycle/Related articles (Created page with "{{subpages}} *Deep geological repository *Enrico Fermi *Global Nuclear Energy Partnership announced February, 2006 *Manhattan Project *Nuclear fission *Nuclear fuel *Nuclear reactor *Nuclear physics *Nuclear power plant *Nuclear proliferation *Spent nuclear fuel shipping cask *United States Naval reactor")
- 13:10, 14 March 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear fuel cycle/Discussion (Created page with "{{subpages}} * A sankey diagram showing mass flows from mine to metal would be instructive * The thorium cycle should have a similar diagram to the U.cycle. * A comma must be missing ad low enriched fuel grade U: 3,5%, not 35% * Costs, waste flows and the interrelationship with timing should be mentioned in more detail * With frequent links there is no need to go into great detail, but since wastes and risks are quite different at different points the reader might find...")
- 13:03, 14 March 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear fuel cycle (copy of old article)
- 12:53, 14 March 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear fuel/links (copy of old article)
- 12:51, 14 March 2024 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear fuel (copy of old article)
- 13:04, 18 February 2024 David MacQuigg talk contribs uploaded File:Electricity Sources.jpeg ({{Image_Details |description = Electricity Sources for the Next 300 Years |author = Ed Francis |copyright = 2022 |source = https://www.quora.com/I-saw-that-storing-CO2-pulled-from-the-atmosphere-is-pretty-difficult-why-couldnt-we-break-it-down-into-O2-and-Carbon-with-a-chemical-reaction-That-would-surely-make-the-carbon-easier-to-store-right/answer/Frank-Zucco?comment_id=350832239&comment_type=2 |date-created = 2022 |pub-country = USA |notes = Answer to a question on Q...)
- 13:04, 18 February 2024 David MacQuigg talk contribs created page File:Electricity Sources.jpeg ({{Image_Details |description = Electricity Sources for the Next 300 Years |author = Ed Francis |copyright = 2022 |source = https://www.quora.com/I-saw-that-storing-CO2-pulled-from-the-atmosphere-is-pretty-difficult-why-couldnt-we-break-it-down-into-O2-and-Carbon-with-a-chemical-reaction-That-would-surely-make-the-carbon-easier-to-store-right/answer/Frank-Zucco?comment_id=350832239&comment_type=2 |date-created = 2022 |pub-country = USA |notes = Answer to a question on Q...)
- 04:44, 12 January 2024 David MacQuigg talk contribs uploaded File:Kerala Cancer Risk.png ({{Image_Details |description = Cancer Risk from living in Kerala India 1990 - 2017 |author = Jack Devanney |copyright = CC-BY-SA |source = Figure 2 in https://jackdevanney.substack.com/p/kerala-cancer-data-2021-update |date-created = 2024 |pub-country = USA |notes = |versions = }})
- 04:44, 12 January 2024 David MacQuigg talk contribs created page File:Kerala Cancer Risk.png ({{Image_Details |description = Cancer Risk from living in Kerala India 1990 - 2017 |author = Jack Devanney |copyright = CC-BY-SA |source = Figure 2 in https://jackdevanney.substack.com/p/kerala-cancer-data-2021-update |date-created = 2024 |pub-country = USA |notes = |versions = }})
- 15:14, 21 December 2023 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/The protactinium problem (Created page with "{{Image|Isotopes from Thorium.png|right|350px|Add image caption here.}}")
- 09:19, 21 December 2023 David MacQuigg talk contribs created page File:Isotopes from Thorium.png ({{Image_Details |description = Isotopes produced by irradiation of thorium |author = David MacQuigg |copyright = CC-BY-SA |source = self |date-created = 2023 |pub-country = USA |notes = data from Live Chart of the Nuclides www-nds.iaea.org |versions = }})
- 09:19, 21 December 2023 David MacQuigg talk contribs uploaded File:Isotopes from Thorium.png ({{Image_Details |description = Isotopes produced by irradiation of thorium |author = David MacQuigg |copyright = CC-BY-SA |source = self |date-created = 2023 |pub-country = USA |notes = data from Live Chart of the Nuclides www-nds.iaea.org |versions = }})
- 13:40, 20 November 2023 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Nuclear Powered Shipping (Created page with "https://news.cision.com/american-bureau-of-shipping/r/groundbreaking-abs-study-explores-potential-of-commercial-nuclear-propulsion,c3810211 {{Image|Nuclear Container Ship 893a014b05e75dcf org.jpg|right|350px|Add image caption here.}} (HOUSTON) The transformational impact of nuclear propulsion on the design, operation and emissions of a 14k TEU container vessel and a 157k DWT Suezmax tanker have been modeled by ABS and Herbert Engineering Corp. (HEC) in a groundbreaking s...")
- 13:12, 20 November 2023 David MacQuigg talk contribs uploaded File:Nuclear Container Ship 893a014b05e75dcf org.jpg ({{Image_Details |description = Drawing of a proposed nuclear-powered container ship |author = American Bureau of Shipping |copyright = ©Cision |source = https://mb.cision.com/Public/19137/3808515/893a014b05e75dcf_org.jpg https://news.cision.com/american-bureau-of-shipping/i/nuclear-propulsion-bow,c3202080 |date-created = MON, JUL 24, 2023 15:00 CET |pub-country = USA |notes = |versions = }})
- 13:12, 20 November 2023 David MacQuigg talk contribs created page File:Nuclear Container Ship 893a014b05e75dcf org.jpg ({{Image_Details |description = Drawing of a proposed nuclear-powered container ship |author = American Bureau of Shipping |copyright = ©Cision |source = https://mb.cision.com/Public/19137/3808515/893a014b05e75dcf_org.jpg https://news.cision.com/american-bureau-of-shipping/i/nuclear-propulsion-bow,c3202080 |date-created = MON, JUL 24, 2023 15:00 CET |pub-country = USA |notes = |versions = }})
- 12:57, 12 November 2023 David MacQuigg talk contribs uploaded File:Natrium fuel.png ({{Image_Details |description = Natrium nuclear fuel rod |author = Mark Werner |copyright = TerraPower |source = https://www.youtube.com/watch?v=41omHk9cVR0 |date-created = 2022 |pub-country = USA |notes = Annular configuration of metal fuel allows close thermal contact with cladding and expansion inward for maximum burnup, 200 MWd per kg. |versions = }})
- 12:57, 12 November 2023 David MacQuigg talk contribs created page File:Natrium fuel.png ({{Image_Details |description = Natrium nuclear fuel rod |author = Mark Werner |copyright = TerraPower |source = https://www.youtube.com/watch?v=41omHk9cVR0 |date-created = 2022 |pub-country = USA |notes = Annular configuration of metal fuel allows close thermal contact with cladding and expansion inward for maximum burnup, 200 MWd per kg. |versions = }})
- 10:38, 5 November 2023 David MacQuigg talk contribs created page Molten chloride fast reactor/Debate Guide (create Debate Guide subpage)
- 04:21, 1 October 2023 David MacQuigg talk contribs created page User:David MacQuigg/Sandbox/Jack Devanney (Created page with " = Articles on Nuclear Power = == Spent Fuel == A : [https://jackdevanney.substack.com/p/600-year-old-spent-nuclear-fuel-is 600 year old spent nuclear fuel is just another poison]<br> C : [https://jackdevanney.substack.com/p/deep-geologic-hubris Deep Geologic Hubris]<br> == LNT == A : [https://jackdevanney.substack.com/p/lnt-is-nonsense LNT is nonsense] == The Two Lies == A : [https://jackdevanney.substack.com/p/the-two-lies-that-killed-nuclear The Two Lies that Killed...")
- 03:50, 26 September 2023 David MacQuigg talk contribs uploaded File:GeoThermal Well.png ({{Image_Details |description = GeoThermal Well using horizontal drilling and fracking |author = Jack H. Norbeck and Timothy M. Latimer, White Paper |copyright = Fervo Energy |source = https://eartharxiv.org/repository/object/5704/download/11142/ |date-created = 2023 |pub-country = USA |notes = |versions = }})
- 03:50, 26 September 2023 David MacQuigg talk contribs created page File:GeoThermal Well.png ({{Image_Details |description = GeoThermal Well using horizontal drilling and fracking |author = Jack H. Norbeck and Timothy M. Latimer, White Paper |copyright = Fervo Energy |source = https://eartharxiv.org/repository/object/5704/download/11142/ |date-created = 2023 |pub-country = USA |notes = |versions = }})
- 04:32, 17 September 2023 David MacQuigg talk contribs moved page Geothermal power to Geothermal energy (new title is more common in literature and discussions)
- 04:32, 17 September 2023 David MacQuigg talk contribs moved page Geothermal power/Definition to Geothermal energy/Definition (new title is more common in literature and discussions)
- 17:48, 16 September 2023 David MacQuigg talk contribs uploaded File:Geothermal Resources USA.png ({{Image_Details |description = Deep EGS resource favorability and identified hydrothermal sites |author = Billy Roberts, NREL |copyright = |source = https://www.nrel.gov/docs/fy23osti/84822.pdf |date-created = 2018 |pub-country = USA |notes = Figure 1 from the technical report Augustine, Chad, Sarah Fisher, Jonathan Ho, Ian Warren, and Erik Witter. 2023. Enhanced Geothermal Shot Analysis for the Geothermal Technologies Office. Golden, CO: National Renewable Energy La...)