panda:index
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| panda:index [2020/10/05 10:06] – Astrid Schneidewind | panda:index [2021/11/02 12:44] (current) – Astrid Schneidewind | ||
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| Hi and welcome on PANDA! We hope that you will like our instrument. | Hi and welcome on PANDA! We hope that you will like our instrument. | ||
| - | PANDA team - Astrid, | + | PANDA team - Astrid, |
| ---- | ---- | ||
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| {{ : | {{ : | ||
| + | * Preparing the upcoming cycle with thermal neutrons: Installing Cu-111-mono to reach higher energy transers, and Si-111-mono. | ||
| + | * We had a very successful I2NS workshop: https:// | ||
| + | * MLZ has a slogan: Neutrons for Research and Innovation | ||
| + | * Rajesh Dutta published his results on multiferroic Ba2CoGe2O7 under external magnetic fields. Thanks to Rajesh and the team: https:// | ||
| + | * Please find the extended abstract here: https:// | ||
| + | * Mario presented part of the PAND-AI work at CAMERA-workshop: | ||
| + | * We moved to the offices in building UYL. Please note our new phone numbers. | ||
| + | * The first 2021 paper was published by Anton, Dmytro and coworkers. Congratulations and many thanks! https:// | ||
| + | * Igor left the Pand group. All the best, Igor! | ||
| + | | ||
| - | * Mario Teixeira Parente started on 1.10.2020 - to work on optimizing search strategies with AI methods. Welcome Mario! | ||
| - | * Bambus is grwoing - aligment of analyzer crystals and detectors is under work. | ||
| - | * Anton moved to TU Dresden. The contact will be kept, he is still a part of the Panda team. | ||
| - | * Shang Gao's paper on antiferromagnetic skyrmions published in Nature. Congratulations! https:// | ||
| - | * Chris Franz joined the Panda group as a new member. | ||
| - | * Nature Communications Physics on Heavy fermion superconductor CeCoIn5 published by Yu Song, Rice University https:// | ||
| - | * PRB on Magnetic anisotropy in ferromagnetic CrI3 published by Lebing Chen, Rice University https:// | ||
| - | * PRX on Hidden-Order Symmetry in CeB6 published by P.Y. Portichenko, | ||
| - | * Proposal round 27: 100 beamdays requested. | ||
| - | * Nikolaos Biniskos joined the Panda team. | ||
| - | * Michal Stekiel joined the Panda team. | ||
| - | * Physical Review Research on Magnonic Weyl states in Cu2OSeO3 published by colleagues from Dresden and Jülich (L.-C. Zhang et al.) https:// | ||
| - | * PRL on Heavily Hole-Doped KFe2As2 Superconductor published by Shoudong Shen, Fudan University Shanghai. https:// | ||
| </ | </ | ||
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| * how to write a proposal | * how to write a proposal | ||
| * how to prepare sample and sample holder | * how to prepare sample and sample holder | ||
| + | * [[panda: | ||
| * [[panda: | * [[panda: | ||
| | | ||
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| </ | </ | ||
| + | <WRAP half column round box> | ||
| + | ===== What's happening at PANDA ===== | ||
| + | < | ||
| + | <a class=" | ||
| + | </ | ||
| + | </ | ||
| <WRAP group> | <WRAP group> | ||
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| + | * Igor Radelytskyi - Infineon Technologies | ||
| * Petr Cermak | * Petr Cermak | ||
| * Benqiong Liu | * Benqiong Liu | ||
| - | * Enrico Faulhaber | + | * Enrico Faulhaber |
| - | * Niels Pyka | + | * Niels Pyka - GSI, Subproject SIS100/ |
| * Roland Schedler - Experimental Physik, Siemens | * Roland Schedler - Experimental Physik, Siemens | ||
| * Martin Rotter - www.mcphase.de | * Martin Rotter - www.mcphase.de | ||
| - | * Peter Link MLZ - TU Munich, head of Neutron Optics | + | * Peter Link MLZ - TU München, head of Neutron Optics |
| - | * Michael Loewenhaupt - https:// | + | * Michael Loewenhaupt, TU Dresden |
| - | * | + | |
| - | * | + | |
| - | * | + | |
| - | * | + | |
| - | * | + | |
| - | * | ||
| | | ||
| </ | </ | ||
| + | |||
| <WRAP half column round box> | <WRAP half column round box> | ||
| - | ===== Typical inelastic (TAS) neutron experiment | + | ===== Long-term guests on Panda |
| - | {{ :panda:attach_1_.svg? | + | {{ :panda:welcome.svg? |
| - | Before coming to the instrument: | + | List of long-term guests on Panda (when) and their current affiliation: |
| - | Decide about the sample orientation | + | * Anton Kulbakov (2019-2020), TU Dresden, |
| + | * Ben-Qiong Liu (2016-2018), | ||
| + | * Iwan Sumirat (2014), now Leader of Neutron Triple Axis Spectroscopy Group, Neutron Beam Technology Division, Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency of Indonesia - BATAN, Indonesia | ||
| + | * Peng Cheng (2013/14), now Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China | ||
| + | * Shiliang Li, now Professor at Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China | ||
| - | Create hkl-intensity-list (reflection list). --> info about forbidden reflections and the (relative) intensities of the allowed. - Have it available for starting the experiment. | + | |
| + | </WRAP> | ||
| - | Mark the crystal direction on the sample holder | ||
| - | Mount the sample properly. Think about covering the glue or holder and about either fixing the sample by Al wire or mounting an Al foil bag around. | ||
| - | |||
| - | Mark the crystal direction outside on the cryostat | ||
| - | |||
| - | For magnets, sample mounting needs to be better than within 1°. Depending on the instrument, care that one crystal direction is parallel to the goniometer axis. | ||
| - | |||
| - | Start experiment. Experiment name, sample name, give sample metadata to system | ||
| - | |||
| - | Align the sample | ||
| - | |||
| - | * move instrument to elastic position | ||
| - | * calculate (hkl) of a strong allowed refelction in your scattering plane for your kf | ||
| - | * if there is no allowed reflection within the available q-range, think about removing the filter and orient at | ||
| - | * move stt/a4 to scattering angle | ||
| - | * rotate sample for 181° minimum (sometimes SE will hinder you, then take what you get) | ||
| - | * you should find at least one reflection, and the angles between refelctions should represent the symmetry of the crystal | ||
| - | * if there are more reflections than expected or the angles are wrong: filter forgotten? more than one grain? - think and decide | ||
| - | * if ok - move sth/a3 to maximum of the reflection. Take the one better suited for SE/other constraints | ||
| - | * go to maximum of the peak, define sth/a3 for the reflection [panda: setalign((h, | ||
| - | * gonio-scan in the related direction, go to max. | ||
| - | * check height | ||
| - | * repeat gonio-scan, until there is no relevant change | ||
| - | * check the lattice parameter. Care that horizontal focus is flat for this scan. | ||
| - | * adjust lattice parameter | ||
| - | * check gonio, height, lattice parameter iteratively up to no relevant changes occur. care about foci | ||
| - | * after last lattice parameter scan, define sth/a3 | ||
| - | * claculate orthogonal reflection | ||
| - | * go there, you should find it immediately | ||
| - | * gonio-scan, lattice parameter iteratively (remember foci. height should be ok) | ||
| - | * adjust lattice patametr, fix gonios | ||
| - | * in case sth/a3 does not fit perfectly for both reflections, | ||
| - | * check lattice parameters at the temperature you want to measure | ||
| - | * start first inelastic scans | ||
| - | |||
| - | Good luck!!!! | ||
| - | |||
| - | </ | ||
| </ | </ | ||
panda/index.txt · Last modified: 2021/11/02 12:44 by Astrid Schneidewind
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