Zobrazeno 1 - 10
of 229
pro vyhledávání: '"W S Graves"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 1, p 014401 (2018)
We present a new method for generation of relativistic electron beams with current modulation on the nanometer scale and below. The current modulation is produced by diffracting relativistic electrons in single crystal Si, accelerating the diffracted
Externí odkaz:
https://doaj.org/article/6f47676a875541efbed1bac0f3089edb
Autor:
E. A. Nanni, W. S. Graves
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 8, p 084401 (2015)
Full exploitation of emittance exchange (EEX) requires aberration-free performance of a complex imaging system including active radio-frequency (rf) elements which can add temporal distortions. We investigate the performance of an EEX line where the
Externí odkaz:
https://doaj.org/article/3ba14561bf584004a1711dbe0cd16cfe
Autor:
W. S. Graves, J. Bessuille, P. Brown, S. Carbajo, V. Dolgashev, K.-H. Hong, E. Ihloff, B. Khaykovich, H. Lin, K. Murari, E. A. Nanni, G. Resta, S. Tantawi, L. E. Zapata, F. X. Kärtner, D. E. Moncton
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 12, p 120701 (2014)
A design for a compact x-ray light source (CXLS) with flux and brilliance orders of magnitude beyond existing laboratory scale sources is presented. The source is based on inverse Compton scattering of a high brightness electron bunch on a picosecond
Externí odkaz:
https://doaj.org/article/bbf9f33e7e40403c9bafa07a409ac0b5
Autor:
J. R. Harris, K. L. Ferguson, J. W. Lewellen, S. P. Niles, B. Rusnak, R. L. Swent, W. B. Colson, T. I. Smith, C. H. Boulware, T. L. Grimm, P. R. Cunningham, M. S. Curtin, D. C. Miccolis, D. J. Sox, W. S. Graves
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 5, p 053501 (2011)
Superconducting radio-frequency electron guns are viewed by many as the preferred technology for generating the high-quality, high-current beams needed for future high power free-electron lasers and energy recovery linacs. All previous guns of this t
Externí odkaz:
https://doaj.org/article/c96cd6aef32e4682bfd6ba3551296508
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 6, Iss 3, p 033503 (2003)
We present an experimental evidence of a bunch compression scheme that uses a traveling wave accelerating structure as a compressor. The bunch length issued from a laser-driven radio-frequency electron source was compressed by a factor >3 using an S-
Externí odkaz:
https://doaj.org/article/7983f6a6458c4e8baa33b979d3a6a87a
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 3, Iss 3, p 030701 (2000)
The nature of off-axis undulator radiation is discussed. Of particular interest is coherent off-axis radiation, where the wavelengths of emission are longer than the electron bunch length. We show how this off-axis radiation may be used to measure re
Externí odkaz:
https://doaj.org/article/42406546903a42b69297ed58de1fd505
Publikováno v:
Physical review letters. 111(1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5140f69aab759d4044f4256e21b5eca5
https://pubmed.ncbi.nlm.nih.gov/23863030
https://pubmed.ncbi.nlm.nih.gov/23863030
Autor:
W. S. Graves, J. V. Remsen
Publikováno v:
The Auk. 112:210-224
We attempted to determine why the distribution of Atlapetes rufinucha (Rufous- naped Brush-finch; Emberizinae) is so patchy. This common, sedentary species is found in several discrete areas of the humid Andes separated by distances of hundreds of ki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d452b2e708456e3728a240cd4a36e52
https://doi.org/10.2307/4088780
https://doi.org/10.2307/4088780
Autor:
W. S. Graves, J. V. Remsen
Publikováno v:
The Auk. 112:225-236
AI•STRACT.--Two species of Andean brush-finches, Buarremon (formerly Atlapetes) torquatus and B. brunneinuchu$, show an interdigitating pattern of distribution in the Andes that we interpret as the result of competition between them. Plotting 590 s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e7b5f98a8e84af163b8b165f45b36b7
https://doi.org/10.2307/4088781
https://doi.org/10.2307/4088781
Autor:
W S, Graves
Publikováno v:
LDA journal. 58(3)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::cf90b3fc236f4fb27b4fcab91e699084
https://pubmed.ncbi.nlm.nih.gov/19205104
https://pubmed.ncbi.nlm.nih.gov/19205104