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Wienands U, Markiewicz TW, Nelson J, Noble RJ, Turner JL, Uggerhøj UI, Wistisen TN, Bagli E, Bandiera L, Germogli G, Guidi V, Mazzolari A, Holtzapple R, Miller M. Observation of deflection of a beam of multi-GeV electrons by a thin crystal. PHYSICAL REVIEW LETTERS 2015; 114:074801. [PMID: 25763959 DOI: 10.1103/physrevlett.114.074801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Indexed: 06/04/2023]
Abstract
We report on an experiment performing channeling and volume reflection of a high-energy electron beam using a quasimosaic, bent silicon (111) crystal at the End Station A Test Beam at SLAC. The experiment uses beams of 3.35 and 6.3 GeV. In the channeling orientation, deflections of the beam of 400 μrad for both energies with about 22% efficiency are observed, while in the volume-reflection orientation, deflection of the beam by 120 μrad at 3.35 GeV and by 80 μrad at 6.3 GeV is observed with 86%-95% efficiency. Quantitative measurements of the channeling efficiency, surface transmission, and dechanneling length are taken. These are the first quantitative measurements of channeling and volume reflection using a primary beam of multi-GeV electrons.
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Affiliation(s)
- U Wienands
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - T W Markiewicz
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - J Nelson
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - R J Noble
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - J L Turner
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - U I Uggerhøj
- Department of Physics and Astronomy, University of Aarhus, Ny Munkegade 120, DK-8000 Aarhus, Denmark
| | - T N Wistisen
- Department of Physics and Astronomy, University of Aarhus, Ny Munkegade 120, DK-8000 Aarhus, Denmark
| | - E Bagli
- Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy
| | - L Bandiera
- Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy
| | - G Germogli
- Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy
| | - V Guidi
- Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy
| | - A Mazzolari
- Department of Physics and Earth Sciences of the University of Ferrara, and INFN Section of Ferrara, Via Saragat 1/C, I-44122 Ferrara, Italy
| | - R Holtzapple
- California Polytechnic State University, San Luis Obispo, California 93407, USA
| | - M Miller
- California Polytechnic State University, San Luis Obispo, California 93407, USA
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Genz H, Groening L, Hoffmann-Stascheck P, Richter A, Höfer M, Hormes J, Nething U, Sellschop JP, Toepffer C, Weber M. Channeling radiation of electrons in natural diamond crystals and their coherence and occupation lengths. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:8922-8936. [PMID: 9982394 DOI: 10.1103/physrevb.53.8922] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Nething U, Galemann M, Genz H, Höfer M, Hoffmann-Stascheck P, Hormes J, Richter A, Sellschop JP. Intensity of electron channeling radiation, and occupation lengths in diamond crystals. PHYSICAL REVIEW LETTERS 1994; 72:2411-2413. [PMID: 10055873 DOI: 10.1103/physrevlett.72.2411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Dulman HD, Pantell RH, Kephart JO, Berman BL, Park H, Datz S, Klein RK, Swent RL, Bian Z. Electron and positron channeling radiation from beryllium oxide. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:5818-5831. [PMID: 10009114 DOI: 10.1103/physrevb.48.5818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kephart JO, Berman BL, Pantell RH, Datz S, Klein RK, Park H. Thermal-vibrational amplitudes of silicon determined by channeling-radiation measurements. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:1992-2002. [PMID: 9999749 DOI: 10.1103/physrevb.44.1992] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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