R H Siemann
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Explore the profile of R H Siemann including associated specialties, affiliations and a list of published articles.
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10
Citations
35
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Recent Articles
1.
Muggli P, Blue B, Clayton C, Decker F, Hogan M, Huang C, et al.
Phys Rev Lett
. 2008 Sep;
101(5):055001.
PMID: 18764398
An ultrarelativistic 28.5 GeV, 700-microm-long positron bunch is focused near the entrance of a 1.4-m-long plasma with a density n(e) between approximately equal to 10(13) and approximately equal to 5...
2.
Oz E, Deng S, Katsouleas T, Muggli P, Barnes C, BLUMENFELD I, et al.
Phys Rev Lett
. 2007 Mar;
98(8):084801.
PMID: 17359103
The onset of trapping of electrons born inside a highly relativistic, 3D beam-driven plasma wake is investigated. Trapping occurs in the transition regions of a Li plasma confined by He...
3.
Johnson D, Auerbach D, BLUMENFELD I, Barnes C, Clayton C, Decker F, et al.
Phys Rev Lett
. 2006 Dec;
97(17):175003.
PMID: 17155479
Positrons in the energy range of 3-30 MeV, produced by x rays emitted by betatron motion in a plasma wiggler of 28.5 GeV electrons from the SLAC accelerator, have been...
4.
Plettner T, Byer R, Colby E, Cowan B, Sears C, Spencer J, et al.
Phys Rev Lett
. 2005 Oct;
95(13):134801.
PMID: 16197142
We demonstrate a new particle acceleration mechanism using 800 nm laser radiation to accelerate relativistic electrons in a semi-infinite vacuum. The experimental demonstration is the first of its kind and...
5.
Hogan M, Barnes C, Clayton C, Decker F, Deng S, Emma P, et al.
Phys Rev Lett
. 2005 Aug;
95(5):054802.
PMID: 16090883
A plasma-wakefield accelerator has accelerated particles by over 2.7 GeV in a 10 cm long plasma module. A 28.5 GeV electron beam with 1.8 x 10(10) electrons is compressed to...
6.
Hogan M, Clayton C, Huang C, Muggli P, Wang S, Blue B, et al.
Phys Rev Lett
. 2003 Jun;
90(20):205002.
PMID: 12785902
We report on the first study of the dynamic transverse forces imparted to an ultrarelativistic positron beam by a long plasma in the underdense regime. Focusing of the 28.5 GeV...
7.
Clayton C, Blue B, Dodd E, Joshi C, Marsh K, Mori W, et al.
Phys Rev Lett
. 2002 Apr;
88(15):154801.
PMID: 11955201
The transverse dynamics of a 28.5-GeV electron beam propagating in a 1.4 m long, (0-2)x10(14) cm(-3) plasma are studied experimentally in the underdense or blowout regime. The transverse component of...
8.
Catravas P, Chattopadhyay S, Esarey E, Leemans W, Assmann R, Decker F, et al.
Phys Rev E Stat Nonlin Soft Matter Phys
. 2001 Nov;
64(4 Pt 2):046502.
PMID: 11690160
Emissions produced or initiated by a 30-GeV electron beam propagating through a approximately 1-m long heat pipe oven containing neutral and partially ionized vapor have been measured near atomic spectral...
9.
Schachter L, Colby E, Siemann R
Phys Rev Lett
. 2001 Oct;
87(13):134802.
PMID: 11580595
We determine the set of equations which describe the dynamics of electrons in the presence of a wave propagating in an active medium. Simulation results indicate that, even when virtually...
10.
Muggli P, Lee S, Katsouleas T, Assmann R, Decker F, Hogan M, et al.
Nature
. 2001 May;
411(6833):43.
PMID: 11333969
No abstract available.