Deflection and Extraction of Pb Ions up to 33 TeV/c by a Bent Silicon Crystal

Journal Article · Sat Nov 01 00:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.4182· OSTI ID:553134

Arduini, G; Biino, C; Clement, M; Cornelis, K; Doble, N; Elsener, K; Ferioli, G; Fidecaro, G; Gatignon, L; Grafstroem, P; Gyr, M; Herr, W; Klem, J; Mikkelsen, U; Weisse, E ^[1]; Taratin, A ^[2]; Freund, A ^[3]; Keppler, P; Major, J ^[4]

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1. SL Division, CERN, CH-1211 Geneva 23 (Switzerland)
2. JINR, Dubna (Russia)
3. ESRF, Grenoble (France)
4. MPI fuer Metallforschung, Stuttgart (Germany)

The first results from an experiment to deflect a beam of fully stripped, ultrarelativistic Pb{sup 82+} ions of 400 GeV/c per unit of charge, equivalent to 33 TeV/c , by means of a bent crystal are reported. Deflection efficiencies are as high as 14{percent}, in agreement with theoretical estimates. In a second experiment a bent crystal was used to extract 270 GeV/c -per-charge Pb{sup 82+} (22 TeV/c) ions from a coasting beam in the CERN-SPS, and a high extraction efficiency of up to 10{percent} was found. These represent the first measurements to demonstrate applications of bent crystals in high energy heavy ion beams. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 553134
• Journal Information: Physical Review Letters, Vol. 79, Issue 21; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
LEAD IONS
BEAM EXTRACTION
CRYSTALS
SILICON
ION BEAMS
BENDING
CHANNELING