Moderator Demonstration Facility Design And Optimization PDF Download
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Total Pages | : 59 |
Release | : 2017 |
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Download Moderator Demonstration Facility Design and Optimization Book in PDF, ePub and Kindle
The Spallation Neutron Source (SNS) facility at Oak Ridge National Laboratory (ORNL) is implementing a Moderator Demonstration Facility (MDF) to demonstrate the performance characteristics of advanced moderators central to the Second Target Station (STS) for SNS. The MDF will use the "spare" front-end installation within the SNS accelerator support complex - an ion source, radio-frequency quadrupole (RFQ) accelerator, and medium-energy beam transport (MEBT) chopper - to provide a 2.5 MeV proton beam of peak current 50 mA and maximum pulse length of less than 10 s at a repetition rate of no more than 60 Hz to a suitable neutron-producing target to demonstrate those aspects of moderator performance necessary to meet the goals of the STS design e ort. The accelerator beam parameters are not open to variation beyond that described above - they are fixed by the nature of the spare front-end installation (the Integrated Test Stand Facility; ITSF). Accordingly, there are some neutronic challenges in developing prototypic moderator illumination from a very non-prototypic primary neutron source; the spallation source we are attempting to mimic has an extended neutron source volume approximately 40 cm long (in the direction of the proton beam), approximately 10 cm wide (horizontally transverse to the proton beam) and approximately 5 cm high (vertically transverse to the proton beam), and an isotropic evaporation energy spectrum with mean energy above 1 MeV. In contrast, the primary neutron source available from the 7Li(p, n) reaction (the most prolific at 2.5 MeV proton energy by more than an order of magnitude) is strongly anisotropic, with an energy spectrum that is both strongly dependent on emission angle and kinematically limited to less than 700 keV, and the interaction zone between the incident protons and any target material (neutron-producing or not) is intrinsically limited to a few tens of microns. The MDF will be unique and innovative amongst the world's moderator test facilities in that it will be intended to be very prototypic in terms of "moderator illumination"--The spatial variation of the neutron flux entering the moderator itself - as well as capable of testing so-called high-brightness moderators in a wing configuration.
Author | : T. Ma |
Publisher | : |
Total Pages | : 90 |
Release | : 1989 |
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Download The Construction of a Demonstration Facility for Function Optimization Techniques Book in PDF, ePub and Kindle
Author | : P. E. Bindner |
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Total Pages | : 0 |
Release | : 1999 |
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Download Design description : moderator test facility Book in PDF, ePub and Kindle
Author | : Thomas Brückel |
Publisher | : Forschungszentrum Jülich |
Total Pages | : 197 |
Release | : 2012 |
Genre | : |
ISBN | : 3893368078 |
Download Programme and Abstracts Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 1756 |
Release | : 1974 |
Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, ePub and Kindle
Author | : Donna Tedesco |
Publisher | : Morgan Kaufmann |
Total Pages | : 0 |
Release | : 2013-11-19 |
Genre | : Computers |
ISBN | : 9780124047006 |
Download The Moderator's Survival Guide Book in PDF, ePub and Kindle
The Moderator's Survival Guide is your indispensable resource for navigating the rocky shoals of your one-on-one user research sessions. Inside, you'll find guidance for nearly 100 diverse situations (ranging from business-as-usual to tricky and sticky) that might occur during usability studies, contextual inquiries, or user interviews. As a moderator, you are responsible for the well-being of the participant, your study, and your organization. You must be prepared for anything that may happen, from your technology failing to the participant quailing. Use this guide to identify your best next steps, react appropriately, and survive any challenges that comes your way.
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Total Pages | : 782 |
Release | : 1995 |
Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, ePub and Kindle
Author | : Frank T Avignone Iii |
Publisher | : World Scientific |
Total Pages | : 214 |
Release | : 1998-02-24 |
Genre | : |
ISBN | : 9814545546 |
Download The Savannah River Accelerator Project And Complementary Spallation Neutron Sources Book in PDF, ePub and Kindle
This proceedings volume is a collection of papers dealing with the applications of spallation neutron sources to pure science, applied science and defense programs. The topics, ranging from accelerator technology to applications in materials science and neutrino physics, are covered by experts in their respective fields.
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Total Pages | : 92 |
Release | : 1960 |
Genre | : Energy development |
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Download TID. Book in PDF, ePub and Kindle
Author | : Argonne National Laboratory |
Publisher | : |
Total Pages | : 256 |
Release | : 1968 |
Genre | : Breeder reactors |
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Download LMFBR: Overall plan.- v. 2. Plant design.- v. 3. Components.- v. 4. Inst. & control.- v. 5. Sodium technology.- v. 6. Core design.- v. 7. Fuels & materials.- v. 8. Fuel recycle.- v. 9. Physics.- v. 10. Safety Book in PDF, ePub and Kindle