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5 results on '"Vischer, Janna"'

1. Summary Report on the 2024 African School of Physics Program for Learners

Author

Assamagan, Kétévi A., Boskri, Abdelkarim, Cecire, Kenneth, Chabab, Mohamed, Darve, Christine, Fassi, Farida, Laassiri, Mounia, Samsam, Sanae, and Vischer, Janna

Subjects
Physics - Physics Education, Physics - Physics and Society
Abstract

On April 15-19, 2024, as a part of the eighth African School of Physics, ASP2024, we organized a program for learners from selected high schools in the vicinity of Marrakesh, Morocco. In this event, within a week, we reached out to over a thousand high school students, aka learners, from many high schools in the region of Marrakesh. We present a summary report on these outreach activities., Comment: 15 pages

Published
2024

2. Radiofrequency ice dielectric measurements at Summit Station, Greenland

Author

Aguilar, Juan Antonio, primary, Allison, Patrick, additional, Besson, Dave, additional, Bishop, Abby, additional, Botner, Olga, additional, Bouma, Sjoerd, additional, Buitink, Stijn, additional, Cataldo, Maddalena, additional, Clark, Brian A., additional, Couberly, Kenny, additional, Curtis-Ginsberg, Zach, additional, Dasgupta, Paramita, additional, de Kockere, Simon, additional, de Vries, Krijn D., additional, Deaconu, Cosmin, additional, DuVernois, Michael A., additional, Eimer, Anna, additional, Glaser, Christian, additional, Hallgren, Allan, additional, Hallmann, Steffen, additional, Hanson, Jordan Christian, additional, Hendricks, Bryan, additional, Henrichs, Jakob, additional, Heyer, Nils, additional, Hornhuber, Christian, additional, Hughes, Kaeli, additional, Karg, Timo, additional, Karle, Albrecht, additional, Kelley, John L., additional, Korntheuer, Michael, additional, Kowalski, Marek, additional, Kravchenko, Ilya, additional, Krebs, Ryan, additional, Lahmann, Robert, additional, Latif, Uzair, additional, Mammo, Joseph, additional, Marsee, Matthew J., additional, Meyers, Zachary S., additional, Michaels, Kelli, additional, Mulrey, Katharine, additional, Muzio, Marco, additional, Nelles, Anna, additional, Novikov, Alexander, additional, Nozdrina, Alisa, additional, Oberla, Eric, additional, Oeyen, Bob, additional, Plaisier, Ilse, additional, Punsuebsay, Noppadol, additional, Pyras, Lilly, additional, Ryckbosch, Dirk, additional, Scholten, Olaf, additional, Seckel, David, additional, Seikh, Mohammad Ful Hossain, additional, Smith, Daniel, additional, Stoffels, Jethro, additional, Southall, Daniel, additional, Terveer, Karen, additional, Toscano, Simona, additional, Tosi, Delia, additional, Van Den Broeck, Dieder J., additional, van Eijndhoven, Nick, additional, Vieregg, Abigail G., additional, Vischer, Janna Z., additional, Welling, Christoph, additional, Williams, Dawn R., additional, Wissel, Stephanie, additional, Young, Robert, additional, and Zink, Adrian, additional

Published
2023
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3. Illustrations for the Solvay Programme

Author

Durey, Guillaume, Woithe, Julia, Wiener, Jeff, Vischer, Janna Zoe, Olofsson, Simon, and Ordan, Julien Marius

Subjects
Open, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Abstract

Pictures that illustrate the three levels of the Solvay Programme: short videos, explainer videos, on-site camp.

Published
2022

4. Radiofrequency Ice Dielectric Measurements at Summit Station, Greenland

Author

Aguilar, Juan Antonio, Allison, Patrick, Besson, Dave, Bishop, Abby, Botner, Olga, Bouma, Sjoerd, Butink, Stijn, Cataldo, Maddalena, Clark, Brian, Couberly, Kenneth, Curtis-Ginsberg, Zachary, Dasgupta, Paramita, De Kickere, Simon, De Vries, Krijn, Deaconu. Cosmin, DuVernois, Michael, Eimer, Anna, Glaser, Christian, Hallgren, Allan, Hallmann, Steffen, Hanson, Jordan, Hendricks, Bryan, Hendrichs, Jakob, Heyer, Nils, Hornhuber, C, Hughes, Kaeli, Karg, Timo, Karle, Albrecht, Kelley, J. L., Korntheuer, Michael, Kowalski, Marek, Kravchenko, Ilja, Lahman, Robert, Latif, Uzair, Mammo, Joseph, Marsee, Matthew, Meyers, Zachary, Michaels, Kelli, Mulrey, Katharine, Muzio, Marco, Nelles, Anna, Novikov, A., Nozdrina, Alisa, Oberla, Eric, Oyen, Bob, Plaisier, Ilse, Punsuebsay, Noppadol, Pyras, Lilly, Ryckbosch, Dirk, Scholten, Olaf, Seckel, Dave, Seikh, Mohammad, Smith, Daniel, Stoffels, Jethro, Southal, Daniel, Terveer, Karen, Toscano, Simona, Tosi, Delia, Ven Den Broeck, Dieder, Van Eijndhoven, Nick, Vieregg, Abigail, Vischer, Janna, Welling, Christoph, Williams, Dawn, Wissel, Stephanie, Young, R, and Zink, Adrian

Abstract

We recently reported on the radio-frequency attenuation length of cold polar ice at Summit Station, Greenland, based on bistatic radar measurements of radio- frequency bedrock echo strengths taken during the summer of 2021. Those data also include echoes attributed to stratified impurities or dielectric discontinuities within the ice sheet (“lay-ers"), which allow studies of a) estimation of the relative contribution of coherent (discrete layers, e.g.) vs. incoherent (bulk volumetric, e.g.) scattering, b) the magnitude of internal layer reflection coefficients, c) limits on the azimuthal asymmetry of reflections (‘birefringence’), and d) limits on signal dispersion in-ice over a bandwidth of ∼100 MHz. We find that i) after averaging 10000 echo triggers, reflected signal observable over the thermal floor (to depths of approximately 1500 m) are consistent with being entirely coherent, ii) internal layer reflection coefficients are measured at approximately –60 to –70 dB, iii) birefringent effects for vertically propagating signals are smaller by an order of magnitude relative to comparable studies per- formed at South Pole, and iv) within our experimental limits, glacial ice is non-dispersive over the frequency band relevant for neutrino detection experiments.

Published
2022
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5. S'Cool LAB Summer CAMP 2018

Author

Vischer, Janna Zoe and Woithe, Julia

Subjects
Open
Abstract

2-week residential particle physics summer camp for 30 high-school students aged 16-19 https://indico.cern.ch/event/726779/

Published
2018

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