2024
1.
Voigt, Jörg; Lieutenant, Klaus
An Instrument Suite for the HBS Journal Article
In: EPJ Web Conf., vol. 298, pp. 01004, 2024.
Links | BibTeX | Tags: HBS, HiCANS, Instrumentation
@article{refId4,
title = {An Instrument Suite for the HBS},
author = {Jörg Voigt and Klaus Lieutenant},
url = {https://doi.org/10.1051/epjconf/202429801004},
doi = {10.1051/epjconf/202429801004},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
journal = {EPJ Web Conf.},
volume = {298},
pages = {01004},
keywords = {HBS, HiCANS, Instrumentation},
pubstate = {published},
tppubtype = {article}
}
2.
Ma, Z.; Lieutenant, K.; Voigt, J.; Schrader, T. E.; Gutberlet, T.
Conceptual design of a macromolecular diffractometer for the Jülich high brilliance source Journal Article
In: Review of Scientific Instruments, vol. 95, no. 6, pp. 065104, 2024, ISSN: 0034-6748.
Abstract | Links | BibTeX | Tags: Diffractometer, HBS, HiCANS, Instrumentation
@article{10.1063/5.0203509,
title = {Conceptual design of a macromolecular diffractometer for the Jülich high brilliance source},
author = {Z. Ma and K. Lieutenant and J. Voigt and T. E. Schrader and T. Gutberlet},
url = {https://doi.org/10.1063/5.0203509},
doi = {10.1063/5.0203509},
issn = {0034-6748},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
journal = {Review of Scientific Instruments},
volume = {95},
number = {6},
pages = {065104},
abstract = {In this work, a concept for a neutron diffractometer for high-resolution macromolecular structures has been developed within the Jülich High Brilliance Neutron Source (HBS) project. The SELENE optics are adapted to the requirements of the instrument to achieve a tunable low background neutron beam at mm2 scale sample area. With the optimized guide geometry, a low background neutron beam can be achieved at the small sample area with tunable divergence and size. For the 1 × 1 mm2 sample, a flux of 1.10 × 107 n/s/cm2 for 0.38° divergence is calculated in the 2–4 Å wavelength range, which is about 84.6% of the flux at MaNDi of the high-power spallation source SNS at ORNL. Virtual neutron scattering experiments have been performed to demonstrate the instrument’s capabilities for studies of mm scale samples with large unit cells. Results of Vitesse simulations indicate that unit cell sizes of up to 200 Å are possible to be resolved with the proposed instrument.},
keywords = {Diffractometer, HBS, HiCANS, Instrumentation},
pubstate = {published},
tppubtype = {article}
}
In this work, a concept for a neutron diffractometer for high-resolution macromolecular structures has been developed within the Jülich High Brilliance Neutron Source (HBS) project. The SELENE optics are adapted to the requirements of the instrument to achieve a tunable low background neutron beam at mm2 scale sample area. With the optimized guide geometry, a low background neutron beam can be achieved at the small sample area with tunable divergence and size. For the 1 × 1 mm2 sample, a flux of 1.10 × 107 n/s/cm2 for 0.38° divergence is calculated in the 2–4 Å wavelength range, which is about 84.6% of the flux at MaNDi of the high-power spallation source SNS at ORNL. Virtual neutron scattering experiments have been performed to demonstrate the instrument’s capabilities for studies of mm scale samples with large unit cells. Results of Vitesse simulations indicate that unit cell sizes of up to 200 Å are possible to be resolved with the proposed instrument.
3.
Paulin, Mariano Andrés; Pechenizkiy, Ivan; Zakalek, Paul; Lieutenant, Klaus; Kämmerling, Peter; Steffens, Alexander; Kleines, Harald; Rücker, Ulrich; Gutberlet, Thomas; Gautrot, Sébastien; Menelle, Alain; Ott, Frédéric
Development of neutron reflectometry for a HiCANS: The HERMES instrument at the JULIC Neutron Platform Journal Article
In: EPJ Web Conf., vol. 298, pp. 01001, 2024.
Links | BibTeX | Tags: CANS, HBS, HiCANS, Instrumentation, Reflectometer
@article{refId1,
title = {Development of neutron reflectometry for a HiCANS: The HERMES instrument at the JULIC Neutron Platform},
author = {Mariano Andrés Paulin and Ivan Pechenizkiy and Paul Zakalek and Klaus Lieutenant and Peter Kämmerling and Alexander Steffens and Harald Kleines and Ulrich Rücker and Thomas Gutberlet and Sébastien Gautrot and Alain Menelle and Frédéric Ott},
url = {https://doi.org/10.1051/epjconf/202429801001},
doi = {10.1051/epjconf/202429801001},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
journal = {EPJ Web Conf.},
volume = {298},
pages = {01001},
keywords = {CANS, HBS, HiCANS, Instrumentation, Reflectometer},
pubstate = {published},
tppubtype = {article}
}
2023
4.
Jaksch, Sebastian; Lieutenant, Klaus; Babcock, Earl; Frielinghaus, Henrich
The GISANS instrument at the HBS Journal Article
In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1048, pp. 167919, 2023, ISSN: 0168-9002.
Abstract | Links | BibTeX | Tags: Grazing incidence small-angle neutron scattering, Instrumentation, Neutron reflectometry, Pulsed source, Ray-tracing computer simulations
@article{2023-Jaksch,
title = {The GISANS instrument at the HBS},
author = {Sebastian Jaksch and Klaus Lieutenant and Earl Babcock and Henrich Frielinghaus},
url = {https://www.sciencedirect.com/science/article/pii/S0168900222012116},
doi = {https://doi.org/10.1016/j.nima.2022.167919},
issn = {0168-9002},
year = {2023},
date = {2023-01-01},
journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
volume = {1048},
pages = {167919},
abstract = {This manuscript describes a concept of a grazing incidence small-angle neutron scattering (GISANS) instrument for the high brilliance source (HBS). The HBS being a compact pulsed neutron source using a moderate energy proton accelerator which allows for very compact moderators and shielding, and flexible pulse repetition rates. Similar to many other instrument concepts for this source, the lowest proposed HBS pulse frequency of 24 Hz with a relatively large detector distance is the optimal choice for the instrument described here in terms of obtained intensity and Q-range (i.e. scattering vector range). Such a configuration has the added advantage of good Q-resolution, which is important when scattering depths need to be resolved well. This is especially the case for GISANS when the incident angle is close to the critical angle of total reflection. The performance obtained from detailed ray-tracing computer simulations predict a high performance instrument that will be comparable to reflectometers and small angle neutron scattering (SANS) instruments at high-flux reactor sources such as the Forschungsreaktor Munich (FRM-2) and others.},
keywords = {Grazing incidence small-angle neutron scattering, Instrumentation, Neutron reflectometry, Pulsed source, Ray-tracing computer simulations},
pubstate = {published},
tppubtype = {article}
}
This manuscript describes a concept of a grazing incidence small-angle neutron scattering (GISANS) instrument for the high brilliance source (HBS). The HBS being a compact pulsed neutron source using a moderate energy proton accelerator which allows for very compact moderators and shielding, and flexible pulse repetition rates. Similar to many other instrument concepts for this source, the lowest proposed HBS pulse frequency of 24 Hz with a relatively large detector distance is the optimal choice for the instrument described here in terms of obtained intensity and Q-range (i.e. scattering vector range). Such a configuration has the added advantage of good Q-resolution, which is important when scattering depths need to be resolved well. This is especially the case for GISANS when the incident angle is close to the critical angle of total reflection. The performance obtained from detailed ray-tracing computer simulations predict a high performance instrument that will be comparable to reflectometers and small angle neutron scattering (SANS) instruments at high-flux reactor sources such as the Forschungsreaktor Munich (FRM-2) and others.