4 documents found, page 1 of 1
Effects of poor hygiene on cytokine phenotypes in children in the tropics.
Figueiredo, C. A.; Amorim, L. D.; Vaca-Martínez, Gioconda Maritza; Chico, Martha E.; Campos, A. C.; Barreto, Mauricio L.; et al.; Figueiredo, C. A.Submitted by Maria Creuza Silva (mariakreuza@yahoo.com.br) on 2017-06-05T14:34:47Z No. of bitstreams: 1 Mauricio Barreto. Effects of poor...2016.pdf: 345375 bytes, checksum: ae7cd9745f0af043857283580cc1ef35 (MD5); Made available in DSpace on 2017-06-05T14:34:47Z (GMT). No. of bitstreams: 1 Mauricio Barreto. Effects of poor...2016.pdf: 345375 bytes, checksum: ae7cd9745f0af043857283580cc1ef35 (MD5); We describe i...
Positron plasma wakefield acceleration in a self-driven hollow channel
Amorim, L. D.; Vieira, J.; Fonseca, R. A.; Silva, L. O.In this work we propose a novel positron driven plasma wakefield acceleration configuration in the non linear regime using tightly focused positron drive beams to create a hollow plasma channel with no background plasma ions, where positrons can accelerate to high energy. A simplified model for the background plasma ion motion in this scenario was analyzed. The proposed scheme was explored numerically resorting...
Electron trapping and acceleration by the plasma wakefield of a self-modulating...
Lotov, K.; Sosedkin, A.; Petrenko, A.; Amorim, L. D.; Vieira, J.; Fonseca, R. A.; Silva, L. O.; Gschwendtner, E.; Muggli, P.It is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam must co-propagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light velocity, which is necessary for efficient acceleration. If the witness beam is many wakefield periods long, then the tr...
AWAKE: A proton-driven plasma wakefield acceleration experiment at CERN
Bracco, C; Amorim, L. D.; Assmann, R.; Batsch, F.; Bingham, R.; Burt, G.; Buttenschön, B.; Butterworth, A.; Caldwell, A.; Chattopadhyay, S.The AWAKE Collaboration has been formed in order to demonstrate proton-driven plasma wakefield acceleration for the first time. This acceleration technique could lead to future colliders of high energy but of a much reduced length when compared to proposed linear accelerators. The CERN SPS proton beam in the CNGS facility will be injected into a 10 m plasma cell where the long proton bunches will be modulated i...