Calibration and cross-laboratory implementation of scintillating screens for electron bunch charge determination

…, JM Krämer, H Ding, S Kuschel, A Köhler… - Review of Scientific …, 2018 - pubs.aip.org
We revise the calibration of scintillating screens commonly used to detect relativistic electron
beams with low average current, eg, from laser-plasma accelerators, based on new and …

Tomographic characterisation of gas-jet targets for laser wakefield acceleration

JP Couperus, A Köhler, TAW Wolterink… - Nuclear Instruments and …, 2016 - Elsevier
Laser wakefield acceleration (LWFA) has emerged as a promising concept for the next
generation of high energy electron accelerators. The acceleration medium is provided by a target …

[HTML][HTML] Progress in hybrid plasma wakefield acceleration

…, O Kononenko, A Knetsch, T Kurz, S Kuschel, A Köhler… - Photonics, 2023 - mdpi.com
Plasma wakefield accelerators can be driven either by intense laser pulses (LWFA) or by
intense particle beams (PWFA). A third approach that combines the complementary …

[PDF][PDF] Macrophytes as bioindicators

A Kohler, S Schneider - Large Rivers, 2003 - Citeseer
Submerged macrophytes respond to changes in the nutrient concentrations in their environment.
In contrast to diatoms eg, submerged macrophytes are capable of taking up nutrients …

Effect of driver charge on wakefield characteristics in a plasma accelerator probed by femtosecond shadowgraphy

…, B Hidding, S Karsch, A Köhler… - New Journal of …, 2022 - iopscience.iop.org
We report on experimental investigations of plasma wave structures in a plasma wakefield
acceleration (PWFA) stage which is driven by electron beams from a preceding laser plasma …

Multioctave high-dynamic range optical spectrometer for single-pulse, longitudinal characterization of ultrashort electron bunches

O Zarini, JC Cabadağ, YY Chang, A Köhler, T Kurz… - … Review Accelerators and …, 2022 - APS
We present design and realization of an ultrabroadband optical spectrometer capable of
measuring the spectral intensity of multioctave-spanning light sources on a single-pulse basis …

[HTML][HTML] Clinical Results of Transarterial Radioembolization (TARE) with Holmium-166 Microspheres in the Multidisciplinary Oncologic Treatment of Patients with …

R Drescher, A Köhler, P Seifert, R Aschenbach, T Ernst… - Biomedicines, 2023 - mdpi.com
Holmium-166 microspheres are used for the transarterial radioembolization (TARE) treatment
of primary and secondary liver cancers. In this study, its efficacy regarding local tumor …

Regeneration growth of the invasive clonal forb Rorippa austriaca (Brassicaceae) in relation to fertilization and interspecific competition

H Dietz, A Köhler, I Ullmann - Plant Ecology, 2002 - Springer
A special type of clonal growth, spread by lateral roots, ishypothesized to be a favourable
trait of invasive, opportunistic plant speciesof disturbed habitats. We tested this hypothesis for …

[HTML][HTML] Flowability, tear strength, and hydrophilicity of current elastomers for dental impressions

F Huettig, A Klink, A Kohler, M Mutschler, F Rupp - Materials, 2021 - mdpi.com
This study investigates 2 polyethers (PE), 2 polyvinylsiloxanethers (VXSE), and 10
polyvinylsiloxanes (PVS), seven of which had a corresponding light-body consistency and seven of …

Single-shot betatron source size measurement from a laser-wakefield accelerator

A Köhler, JP Couperus, O Zarini, A Jochmann… - Nuclear Instruments and …, 2016 - Elsevier
Betatron radiation emitted by accelerated electrons in laser-wakefield accelerators can be
used as a diagnostic tool to investigate electron dynamics during the acceleration process. …