Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Justin R Carmichael"'
Autor:
M. Frost, Yarom Polsky, Ke An, Philip R. Bingham, K. Ekici, L. Dessieux, Lawrence M. Anovitz, S. Pemberton, Justin R Carmichael
Publikováno v:
Review of Scientific Instruments. 91:084502
Neutron scattering and neutron imaging have emerged as powerful methods for experimentally investigating material deformation and fluid flow in the interior of otherwise inaccessible or opaque structures. This paper describes the design and provides
Autor:
Jitendra Bahadur, Cristian I. Contescu, Nidia C. Gallego, Yuri B. Melnichenko, Lilin He, Justin R Carmichael
Publikováno v:
Carbon. 95:535-544
The high pressure adsorption behavior of CO2 at T = 296 K in microporous carbon was investigated by small-angle neutron scattering (SANS) technique. A strong densification of CO2 in micropores accompanied by non-monotonic adsorption-induced pore defo
Autor:
D. Jacobsen, Hassina Z. Bilheux, Philip R. Bingham, Daniel S. Hussey, Lawrence M. Anovitz, Yarom Polsky, Justin R Carmichael
Publikováno v:
Physics Procedia. 69:464-471
Enhanced geothermal systems seek to expand the potential for geothermal energy by engineering heat exchange systems within the earth. A neutron radiography imaging method has been developed for the study of fluid flow through rock under environmental
Publikováno v:
Journal of Applied Crystallography. 45:1219-1227
Time-of-flight (TOF) neutron diffraction experiments on aligned stacks of lipid bilayers using the horizontal Liquids Reflectometer at the Spallation Neutron Source are reported. Specific details are given regarding the instrumental setup, data colle
Autor:
Justin R Carmichael, Souleymane Diallo
Publikováno v:
The Review of scientific instruments. 84(1)
We present our new development of a high pressure cell for inelastic neutron scattering measurements of helium at ultra-low temperatures. The cell has a large sample volume of ~140 cm(3) and a working pressure of ~7 MPa, with a relatively thin wall-t
Autor:
John F. Ankner, David R. Cole, David J. Wesolowski, Lawrence M. Anovitz, Gernot Rother, Jim Browning, Jose Banuelos, Justin R Carmichael
Publikováno v:
The Review of scientific instruments. 83(4)
A new high-pressure cell design for use in neutron reflectometry (NR) for pressures up to 50 MPa and a temperature range of 300-473 K is described. The cell design guides the neutron beam through the working crystal without passing through additional
Autor:
Martin P. Stockli, Danny W Crisp, Yoon W. Kang, Baoxi Han, D. O. Sparks, Terry R Pennisi, Richard Goulding, Robert F Welton, Nicholas P. Luciano, Jerry Carr Jr., S. N. Murray, Justin R Carmichael
Publikováno v:
The Review of scientific instruments. 79(2 Pt 2)
The U.S. Spallation Neutron Source (SNS) will require substantially higher average and pulse H(-) beam currents than can be produced from conventional ion sources such as the base line SNS source. H(-) currents of 40-50 mA (SNS operations) and 70-100
Publikováno v:
The Review of scientific instruments. 79(2 Pt 2)
Beam simulation codes PBGUNS, SIMION, and LORENTZ-3D were evaluated by modeling the well-diagnosed SNS base line ion source and low energy beam transport (LEBT) system. Then, an investigation was conducted using these codes to assist our ion source a
Autor:
Terry R Pennisi, Yoon W. Kang, Baoxi Han, Justin R Carmichael, Nicholas P. Luciano, Jerry Carr Jr., Richard Goulding, Syd Murray, Martin P. Stockli, D. W. Crisp, Robert F Welton
Publikováno v:
2007 IEEE Particle Accelerator Conference (PAC).
The US spallation neutron source* (SNS), will require substantially higher average and pulse H" beam current than can be produced from conventional H- ion sources such as the baseline LBNL-SNS source. H- currents of 70-100 mA with an RMS emittance of
Autor:
R. H. Goulding, R. F. Welton, S. N. Murray, M. P. Stockli, F. W. Baity, Justin R Carmichael, Jerry Carr Jr.
Publikováno v:
AIP Conference Proceedings.
The US Spallation Neutron Source (SNS) has recently begun producing neutrons and is currently on track to becoming a world‐leading facility for material science based on neutron scattering. The facility is comprised of an H− ion source, a linear