11 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Neutron Beams"  
Results: 1 - 11
open access

Creep Rupture in the Presence of a Fast Neutron Flux

Description: Possible mechanisms for creep rupture during irradiation are examined. Evidence that the rupture occurs by grain boundary sliding alone, or by vacancy condensation, is compared. It is observed that vacancy condensation is the more probable mechanism, and that this mechanism predicts a reduction in creep rupture life for metals exposed to a fast neutron flux (neglecting effects of radiation annealing). (T.F.H.)
Date: January 14, 1959
Creator: Gregory, D. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of a Tunable Quasi-Monoenergetic Neutron Beamfrom Deuteron Breakup

Description: A neutron irradiation facility is being developed at the88-Inch Cyclotron at Lawrence Berkeley National Laboratory for thepurposes of measuring neutron reaction cross sections on radioactivetargets and for radiation effects testing. Applications are of benefit tostockpile stewardship, nuclear astrophysics, next generation advancedfuel reactors, and cosmic radiation biology and electronics in space. Thefacility will supply a tunable, quasi-monoenergetic neutron beam in therange of 10-30 MeV or a… more
Date: December 14, 2006
Creator: Bleuel, D. L.; McMahan, M. A.; Ahle, L.; Barquest, B. R.; Cerny, J.; Heilbronn, L. H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fast-Neutron Flux Measurements in the ORNL Graphite Reactor Shield

Description: In a study of the nuclear and physical properties of the concrete shield of the ORNL Graphite Reactor measurements were made of the fast-neutron fluxes in a hole through the shield. These fluxes were not incinded in the formal report of the study (ORNL-2195) since several uncertainties associated with the measurements made the absolute values unreliable. The attenuation curves at one energy may be reasonably accurate, however. (auth)
Date: August 14, 1958
Creator: Blosser, T. V.; Bond, G. W.; Lee, L. A.; Morgan, D. T.; Nichols, J. F.; Reid, R. C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Equipment and Methods for Automatic Track Analysis

Description: A comprehensive program has been initiated at the University of California Radiation Laboratory to give practical aid to the physicists and technicians carrying out track measurements. Attention has been given to stack alignment, coordinate read-out, grain-density measurement, multiple-scattering measurements, and data recording. (A. C.)
Date: August 14, 1958
Creator: Barkas, W.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In-Pile Loop Irradiation of Aqueous Thoria-Urania Slurry at Elevated Temperature. Design and in-Pile Operation of Loop L-2-27S

Description: An in-pile pump loop, designed to fit within horizontal beam hole HB-2 of the Low-Intensity Test Reactor (LlTR), was used to circulate an aqueous thoria- urania slurry while exposed to reactor irradiation. The total loop volume was about 1600 ml, including pump and pressurizer, but the slurry was confined to the 900-ml volume of the main loop stream by means of a sintered stainless steel filter. The filter was an important feature of the loop design in that it provided a thoria-free filtrate as… more
Date: February 14, 1962
Creator: Savage, H. C.; Compere, E. L.; Baker, J. M.; DeCarlo, V. A. & Shor, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High performance X-ray and neutron microfocusing optics. Phase II final report.

Description: The use of extremely small diameter x-ray beams at synchrotron radiation facilities has become an important experimental technique for investigators in many other scientific disciplines. While there have been several different optical elements developed for producing such microbeams, this SBIR project was concerned with one particular device: the tapered-monocapillary optic.
Date: January 14, 2000
Creator: Hirsch, Gregory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bnl Activities in Advanced Neutron Source Development: Past and Present

Description: Brookhaven National Laboratory has been involved in advanced neutron sources almost from its inception in 1947. These efforts have mainly focused on steady state reactors beginning with the construction of the first research reactor for neutron beams, the Brookhaven Graphite Research Reactor. This was followed by the High Flux Beam Reactor that has served as the design standard for all the subsequent high flux reactors constructed worldwide. In parallel with the reactor developments BNL has foc… more
Date: June 14, 1998
Creator: Hastings, J. B.; Ludewig, H.; Montanez, P.; Todosow, M.; Smith, G. C. & Larese, J. Z.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Prediction of in-phantom dose distribution using in-air neutron beam characteristics for BNCS

Description: A monoenergetic neutron beam simulation study is carried out to determine the optimal neutron energy range for treatment of rheumatoid arthritis using radiation synovectomy. The goal of the treatment is the ablation of diseased synovial membranes in joints, such as knees and fingers. This study focuses on human knee joints. Two figures-of-merit are used to measure the neutron beam quality, the ratio of the synovium absorbed dose to the skin absorbed dose, and the ratio of the synovium absorbed … more
Date: December 14, 1999
Creator: Verbeke, Jerome M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen