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Kainz A, Keplinger F, Hortschitz W, Kahr M, Steiner H, Stifter M, Hunt JR, Resta-Lopez J, Rodin V, Welsch CP, Borburgh J, Fraser MA, Bartmann W. Noninvasive 3D Field Mapping of Complex Static Electric Fields. Phys Rev Lett 2019; 122:244801. [PMID: 31322392 DOI: 10.1103/physrevlett.122.244801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Indexed: 06/10/2023]
Abstract
Many upcoming experiments in antimatter research require low-energy antiproton beams. With a kinetic energy in the order of 100 keV, the standard magnetic components to control and focus the beams become less effective. Therefore, electrostatic components are being developed and installed in transfer lines and storage rings. However, there is no equipment available to precisely map and check the electric field generated by these elements. Instead, one has to trust in simulations and, therefore, depend on tight fabrication tolerances. Here we present, for the first time, a noninvasive way to experimentally probe the electrostatic field in a 3D volume with a microsensor. Using the example of an electrostatic quadrupole focusing component, we find excellent agreement between a simulated and real field. Furthermore, it is shown that the spatial resolution of the probe is limited by the electric field curvature which is almost zero for the quadrupole. With a sensor resolution of 61 V/m/sqrt[Hz], the field deviation due to a noncompliance with the tolerances can be resolved. We anticipate that this compact and practical field strength probe will be relevant also for other scientific and technological disciplines such as atmospheric electricity or safeguarding near power infrastructure.
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Affiliation(s)
- Andreas Kainz
- Institute of Sensor and Actuator Systems, TU Wien, 1040 Vienna, Austria
| | - Franz Keplinger
- Institute of Sensor and Actuator Systems, TU Wien, 1040 Vienna, Austria
| | - Wilfried Hortschitz
- Department of Integrated Sensor Systems, Danube University Krems, 2700 Wiener Neustadt, Austria
| | - Matthias Kahr
- Department of Integrated Sensor Systems, Danube University Krems, 2700 Wiener Neustadt, Austria
| | - Harald Steiner
- Department of Integrated Sensor Systems, Danube University Krems, 2700 Wiener Neustadt, Austria
| | - Michael Stifter
- Department of Integrated Sensor Systems, Danube University Krems, 2700 Wiener Neustadt, Austria
| | - James R Hunt
- QUASAR Group, The Cockcroft Institute, Daresbury, WA4 4AD, United Kingdom
- Department of Physics, University of Liverpool, L69 3BX, United Kingdom
| | - Javier Resta-Lopez
- QUASAR Group, The Cockcroft Institute, Daresbury, WA4 4AD, United Kingdom
- Department of Physics, University of Liverpool, L69 3BX, United Kingdom
| | - Volodymyr Rodin
- QUASAR Group, The Cockcroft Institute, Daresbury, WA4 4AD, United Kingdom
- Department of Physics, University of Liverpool, L69 3BX, United Kingdom
| | - Carsten P Welsch
- QUASAR Group, The Cockcroft Institute, Daresbury, WA4 4AD, United Kingdom
- Department of Physics, University of Liverpool, L69 3BX, United Kingdom
| | - Jan Borburgh
- Accelerator Beam Transfer group, CERN, 1211 Geneva, Switzerland
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Barna D, Novák M, Brunner K, Kirby G, Goddard B, Borburgh J, Atanasov MG, Sanz Ull A, Renner E, Bartmann W, Szakály M. Conceptual design of a high-field septum magnet using a superconducting shield and a canted-cosine-theta magnet. Rev Sci Instrum 2019; 90:053302. [PMID: 31153287 DOI: 10.1063/1.5096020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
A zero-field cooled superconducting shield was previously proposed to realize a high-field (at least 3 T) septum magnet for the Future Circular Collider proton-proton ring. In this paper, we present the conceptual design of a complete septum magnet prototype including a shield with an optimized shape and a simple and cost-effective superconducting magnet using the canted cosine theta concept. 2D optimization of the coil geometry and a realistic 2D simulation of the fieldmap and field homogeneity are presented taking into account the nonlinear penetration of the magnetic field into the shield.
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Affiliation(s)
- Dániel Barna
- Wigner Research Centre for Physics, Institute for Particle and Nuclear Physics, Konkoly-Thege M. 29-33, H-1121 Budapest, Hungary
| | - Martin Novák
- Wigner Research Centre for Physics, Institute for Particle and Nuclear Physics, Konkoly-Thege M. 29-33, H-1121 Budapest, Hungary
| | - Kristóf Brunner
- CERN, TE-VSC-VSM, Esplanade des Particules 1, 1217 Meyrin, Switzerland
| | - Glyn Kirby
- CERN, TE-MSC-MDT, Esplanade des Particules 1, 1217 Meyrin, Switzerland
| | - Brennan Goddard
- CERN, TE-ABT, Esplanade des Particules 1, 1217 Meyrin, Switzerland
| | - Jan Borburgh
- CERN, TE-ABT-SE, Esplanade des Particules 1, 1217 Meyrin, Switzerland
| | | | | | - Elisabeth Renner
- CERN, TE-ABT-BTP, Esplanade des Particules 1, 1217 Meyrin, Switzerland
| | - Wolfgang Bartmann
- CERN, TE-ABT-BTP, Esplanade des Particules 1, 1217 Meyrin, Switzerland
| | - Marcell Szakály
- Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom
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Lutz H, Lux G, Heyder N, Borburgh J. Transgastric sonography in pancreatic diseases. Ultrasound Med Biol 1983; Suppl 2:465-467. [PMID: 6400266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The possibilities of a transgastric ultrasonic diagnosis of the pancreas and other organs are investigated in an initial series of 50 examinations using two different ultrasonic endoscopes.
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