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1.
Development of hollow electron beams for proton and ion collimation / Stancari, G. (Fermilab) ; Drozhdin, A.I. (Fermilab) ; Kuznetsov, G. (Fermilab) ; Shiltsev, V. (Fermilab) ; Still, D.A. (Fermilab) ; Valishev, A. (Fermilab) ; Vorobiev, L.G. (Fermilab) ; Assmann, R. (CERN) ; Kabantsev, A. (UC, San Diego)
Magnetically confined hollow electron beams for controlled halo removal in high-energy colliders such as the Tevatron or the LHC may extend traditional collimation systems beyond the intensity limits imposed by tolerable material damage. They may also improve collimation performance by suppressing loss spikes due to beam jitter and by increasing capture efficiency. [...]
arXiv:1202.0252; IPAC-2010-TUPEB076; FERMILAB-CONF-10-182-AD-APC.- 2012 - 3 p. - Published in : Conf. Proc. C: 100523 (2010) , pp. TUPEB076
Fulltext: PDF; Preprint: PDF; External links: Fermilab Library Server (fulltext available); Full-text at JACoW Server
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPEB076
2.
Crystal Collimation Studies at the Tevatron (T-980) / Mokhov, N V (Fermilab) ; Annala, G E (Fermilab) ; Apyan, A (Fermilab) ; Carrigan, R A (Fermilab) ; Drozhdin, A I (Fermilab) ; Johnson, T R (Fermilab) ; Legan, A M (Fermilab) ; Reilly, R E (Fermilab) ; Shiltsev, V (Fermilab) ; Still, D A (Fermilab) et al.
Bent-crys­tal chan­nel­ing is a tech­nique with a po­ten­tial to in­crease the beam-ha­lo col­li­ma­tion ef­fi­cien­cy at high-en­er­gy col­lid­ers. First mea­sure­ments at the Teva­tron in 2005 have shown that using a 5-mm sil­i­con crys­tal to de­flect the pro­ton beam halo onto a sec­ondary col­li­ma­tor im­proves the sys­tem per­for­mance by re­duc­ing the ma­chine impedance, beam loss­es in the col­lid­er de­tec­tors and ir­ra­di­a­tion of the su­per­con­duct­ing mag­nets, all in agree­ment with sim­u­la­tions. [...]
FERMILAB-CONF-09-173-APC.- 2010 Published version from PAC09: PDF;
In : Particle Accelerator Conference 2009, Vancouver, Canada, 04 - 08 May 2009, pp.WE1GRC05
3.
Development of hollow electron beams for proton and ion collimation / Stancari, G. (Fermilab) ; Drozhdin, A.I. (Fermilab) ; Kuznetsov, G. (Fermilab) ; Shiltsev, V. (Fermilab) ; Still, D.A. (Fermilab) ; Valishev, A. (Fermilab) ; Vorobiev, L.G. (Fermilab) ; Assmann, R. (CERN) ; Kabantsev, A. (UC, San Diego)
Magnetically confined hollow electron beams for controlled halo removal in high-energy colliders such as the Tevatron or the LHC may extend traditional collimation systems beyond the intensity limits imposed by tolerable material damage. They may also improve collimation performance by suppressing loss spikes due to beam jitter and by increasing capture efficiency [...]
2010 External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPEB076
4.
High-Efficiency Volume Reflection of an Ultrarelativistic Proton Beam with a Bent Silicon Crystal / Scandale, Walter (CERN) ; Still, Dean A ; Carnera, Alberto ; Della Mea, Gianantonio ; De Salvador, Davide ; Milan, Riccardo ; Vomiero, Alberto ; Baricordi, Stefano ; Dalpiaz, Pietro ; Fiorini, Massimiliano et al.
The volume reflection phenomenon was detected while investigating 400 GeV proton interactions with bent silicon crystals in the external beam H8 of the CERN Super Proton Synchrotron. Such a process was observed for a wide interval of crystal orientations relative to the beam axis, and its efficiency exceeds 95%, thereby surpassing any previously observed value. [...]
CARE-Pub-07-001; CARE-Pub-2007-001.- CARE, 2007 - Published in : Phys. Rev. Lett. 98 (2007) 154801 APS Published version, local copy: PDF;

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