1 / 13

Welcome from the American Physical Society’s Division of Physics of Beams

Welcome to the Participants in the High Current Protons Workshop for Discovery-class Science and Applications to Society Swapan Chattopadhyay Chair Division of Physics of Beams American Physical Society October 19, 2009.

gedmondson
Télécharger la présentation

Welcome from the American Physical Society’s Division of Physics of Beams

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Welcome to the Participants in the High Current Protons Workshop for Discovery-class Science and Applications to Society SwapanChattopadhyay Chair Division of Physics of Beams American Physical Society October 19, 2009

  2. Welcome from the American Physical Society’s Division of Physics of Beams Good Morning! The organizers of this wonderful workshop at Fermilab have kindly asked me to say few words about the significance and intrinsic value of high current protons to science and society and hence the relevance of this workshop from the perspective of the American Physical Society’s Division of Physics of Beams. In my capacity as the Chair of the APS/DPB in 2009-2010, it is my distinct privilege to encourage you to think about not only the great “discovery-class” science that high current proton accelerators enable but also the various societal applications that we could benefit from.

  3. Ultra-bright and Ultra-short pulses of photons and neutrons motivate Ultra-fast and Ultra- small femto- and nano-sciences and their applications (LCLS, XFEL, NSLSII, NLS, ISIS, SNS, ESS,....) Accelerators drive and enable Particle, Nuclear, Photon and Neutron Sciences Particle colliders and accelerators with increasing energies and luminosities probe deeper into the origin of the universe (LHC/SLHC, LHeC, ILC, CLIC, NF/MC, Project-X, Super-B, HIE-ISIOLDE, FRIB, FAIR)

  4. Accelerators also provide Societal Applications Energy, Health, Security Energy: particle-beam assisted fission Lubrication in Nano-Slits Health: Cancer therapy, radio-isotopes, Microwave surgical ablation Security: nano-fabrication for sensors and monitors From Micro- to Nano-Gears Chemistry Lab of Tomorrow: On a Chip Blood Flow in Capillaries

  5. This workshop deals with High Current Protons Science applications: Neutrino Beams and Muon Collider Origin of Neutrino Mass, Flavour and Universe

  6. Proton beams can also enable: cleaner nuclear fission for Energy and Cancer Therapy Assisted Fission on demand: A high current proton accelerator can act as an “on/off” switch for an efficient, clean, proliferation-free, safe nuclear fission reactor using Thorium as fuel. Hadron Therapy: Proton/heavy ion Bragg peak favors selective tumor treatment. Needs higher statistics of cell dosimetry to validate proton/hadron deposition as method for killing tumor cells.

  7. Let’s just look at the Energy issues…..

  8. ENERGY: ACCELERATORS CAN speed up “Nuclear” and “Solar” options for emission-free and environmentally clean minimal waste solutions PV ≡ Photo Voltaics: High efficiency, low cost solar cells: R&D at light sources ADSR: Accelerator-Driven Sub-critical Reactor  High current proton accelerators

  9. CSP ≡ Concentrating Solar Power

  10. sample fs UV pulse Developing Next Generation Solar Cells and THz-responsive materials The facts: 120 Petawatts of solar energy falls on earth. Our current energy consumption is approx. 15 Terawatts. By 2050, the consumption is expected to double to 30 Terawatts. The problem: we need a step change in the cost of photo-voltaics: volts/$ The Solution: New materials; New approaches Investigate Visible to THz transient absorption via light sources, lasers and particle beams DIAGNOSTICS AREA Multiple Exciton Generation: Step change Mechanism? Funding: EPSRC, Nanoco, STFC, NWSF R. D. Schaller et al., Nano Lett. 6, 424, (2006)

  11. ENERGYAccelerator Driven Sub-critical Reactors(ADSR) Possibility of clean safe nuclear power using Thorium, which is abundant in nature. Thorium, a poor low-grade nuclear fuel, produces 1 neutron per reaction, short of 2.6 neutrons per reaction needed for sustained fission. The extra 1.6 neutrons can be provided by “switching on” a proton accelerator producing “spallated” neutrons. The driving accelerator is critical, requiring moderate energy (1 GeV), high current (mA), high power (MW) and high reliability proton beams. FFAGs and/or Superconducting RF Accelerators could be the answer • Higher energy than a cyclotron • Higher current than a synchrotron • Cost vs. High Current and robust performance will select the proper technology. • “On/Off” switch • No long lived wastes • Can consume Actinides • Can’t make nuclear bombs

  12. SUSTAINABILITY Recommended essential reading: “Sustainable Energy – without the hot air” by David JC MacKay, Cambridge • 6 Million Tons of Mined Thorium in ADSR at 40% energy conversion efficiency • 24 kWh / d / p for 1,000 years • But 300 times more Thorium can be mined  480 kWh / d / p for 15,000 years • >> CONSUMPTION ! Sustainability at last !!!

  13. Closing Remarks The APS/DPB is proud to represent the skills base nationally in USA as well as internationally, necessary to make a difference to the world via particle-beam driven enablers in Energy, Health and Security as we simultaneously explore Discovery-class Science! On behalf of the APS Division of Physics of Beams, I wish you a most productive workshop.

More Related