Preparing crystals for channeling experiments at high energies

Baublis, V.; Khanzadeev, A.; Kuryatkov, V.; Lapin, E. G.; Miftakhov, N.; Novikov, S. V.; Prokofieva, T.; Samsonov, V.; Solodov, G.; Loginov, B.B.; Strickhanov, M.N.; Carrigan, R. A.; Chen, D.; Murphy, C.T.

doi:10.1016/0168-583x(96)00328-x

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Crystals were prepared at the Petersburg Nuclear Physics Institute [6]. One crystal was mounted in a goniometer with 4 degrees of freedom so that it could be translated and rotated with small step sizes.…”

Section: Methodsmentioning

confidence: 99%

First observation of luminosity-driven extraction using channeling with a bent crystal

Carrigan¹,

Chen²,

Jackson³

et al. 1998

Phys. Rev. ST Accel. Beams

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Luminosity-driven channeling extraction has been observed for the first time using a 900 GeV circulating proton beam at the superconducting Fermilab Tevatron. The extraction efficiency was found to be about 30%. A 150 kHz beam was obtained during luminosity-driven extraction with a tolerable background rate at the collider experiments. A 900 kHz beam was obtained when the background limits were doubled. This is the highest energy at which channeling has been observed.

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Section: Methodsmentioning

confidence: 99%

First observation of luminosity-driven extraction using channeling with a bent crystal

Carrigan¹,

Chen²,

Jackson³

et al. 1998

Phys. Rev. ST Accel. Beams

Self Cite

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Optically polished surfaces parallel to the (220) lattice planes of silicon monocrystals

Bergamin

Cavagnero

Mana

et al. 1999

Meas. Sci. Technol.

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Beam extraction studies at 900 GeV using a channeling crystal

Carrigan¹,

Chen²,

Jackson³

et al. 2002

Phys. Rev. ST Accel. Beams

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Luminosity-driven channeling extraction has been observed for the first time in a 900 GeV study at the Fermilab Tevatron. This experiment, Fermilab E853, demonstrated that useful TeV level beams can be extracted from a superconducting accelerator during high luminosity collider operations without unduly affecting the background at the collider detectors. Multi-turn extraction was found to increase significantly the efficiency of the process. The beam extraction efficiency was about 25%. Studies of time dependent effects found that the turn-to-turn structure was governed mainly by accelerator beam dynamics. An investigation of a pre-scatterer using the accelerator flying wire system showed that a fiber could produce a significant extracted flux, consistent with expectations. Based on these results, it is feasible to construct a parasitic 5-10 MHz proton beam from the Tevatron collider.Comment: 55 page

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Preparing crystals for channeling experiments at high energies

Cited by 3 publications

References 5 publications

First observation of luminosity-driven extraction using channeling with a bent crystal

First observation of luminosity-driven extraction using channeling with a bent crystal

Optically polished surfaces parallel to the (220) lattice planes of silicon monocrystals

Beam extraction studies at 900 GeV using a channeling crystal

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