Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Schach von Wittenau"'
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, A 2011 652(1):901-904
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 652:901-904
Given the cost and lead-times involved in high-energy proton radiography, it is prudent to model proposed radiographic experiments to see if the images predicted would return useful information. We recently modified our raytracing transmission radiog
Publikováno v:
Nuclear Technology. 168:245-248
MERCURY is a modern, parallel, general-purpose Monte Carlo code being developed at the Lawrence Livermore National Laboratory. Recently, a radiographic capability has been added. MERCURY can create...
Autor:
Zhang, X. S., Terminello, L. J., Kim, S., Huang, Z. Q., Schach von Wittenau, A. E., Shirley, D. A.
Publikováno v:
Journal of Chemical Physics; 11/15/1988, Vol. 89 Issue 10, p6538, 9p
Publikováno v:
Medical Physics. 29:1797-1806
In photon teletherapy, the size and functional form of the photon source spot affect both the sharpness of the penumbra of treatment fields and the sharpness of portal images. Photon source spot parameters are also used in photon teletherapy dose cal
Autor:
A E, Schach von Wittenau, L J, Cox, P M, Bergstrom, W P, Chandler, C L, Hartmann Siantar, R, Mohan
Publikováno v:
Medical Physics. 26:1196-1211
We present a method for condensing the photon energy and angular distributions obtained from Monte Carlo simulations of medical accelerators. This method represents the output as a series of correlated histograms and as such is well-suited for inclus
Autor:
D.A. Shirley, S. A. Kellar, X. S. Zhang, Zhengqing Huang, S. Kim, W.R.A. Huff, Zahid Hussain, Louis J. Terminello, Yuebing Zheng, X. J. Zhou, F. M. Tao, Edward Moler, A. E. Schach von Wittenau, H. Wu, Y. K. Pan, Yongsheng Chen, Z. Z. Yang
Publikováno v:
Physical Review B. 55:10830-10840
This work was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. It was performed at the Stanford Synchrotron Radiat
Autor:
M. A. Briere, D. H. Schneider, A. V. Barnes, A.E. Schach von Wittenau, Thomas Schenkel, Alex V. Hamza
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 125:153-158
The emission of secondary electrons and ions from clean Au, CxHyAu and SiO2 surfaces at impact of slow (v ≈ 0.3 vBohr) ions has been measured as a function of incident ion charge for 1 + ≤ q ≤ 75 +. Electron yields from thermal silicon dioxi
Publikováno v:
Catalysis Reviews. 39:49-76
The combination of turnover rate measurements and surface science techniques allows a firm quantification of rates in heterogeneous catalysis by metals. There are many examples of reactions where the turnover rates from different laboratories are the
Publikováno v:
Physical Review B. 47:13626-13635
Angle-resolved photoemission extended fine structure (ARPEFS) from the potassium 1s core level was measured for the quantitative structural determination of the p(2\ifmmode\times\else\texttimes\fi{}2)K/Ni(111) overlayer at 130 K. Our analysis of the