Inicio  /  Instruments  /  Vol: 5 Par: 1 (2021)  /  Artículo
ARTÍCULO
TITULO

A New High-Throughput Focused MeV Ion-Beam Analysis Setup

Sören Möller    
Daniel Höschen    
Sina Kurth    
Gerwin Esser    
Albert Hiller    
Christian Scholtysik    
Christian Dellen and Christian Linsmeier    

Resumen

The analysis of material composition by ion-beam analysis (IBA) is becoming a standard method, similar to electron microscopy. A pool of IBA methods exists, from which the combination of particle-induced-X-ray emission (PIXE), particle induced gamma-ray analysis (PIGE), nuclear-reaction-analysis (NRA), and Rutherford-backscattering-spectrometry (RBS) provides the most complete analysis over the whole periodic table in a single measurement. Yet, for a highly resolved and accurate IBA analysis, a sophisticated technical setup is required integrating the detectors, beam optics, and sample arrangement. A new end-station developed and installed in Forschungszentrum Jülich provides these capabilities in combination with high sample throughput and result accuracy. Mechanical tolerances limit the device accuracy to 3% for RBS. Continuous pumping enables 5 × 10-8 mbar base pressure with vibration amplitudes < 0.1 µm. The beam optics achieves a demagnification of 24?34, suitable for µ-beam analysis. An in-vacuum manipulator enables scanning 50 × 50 mm² sample areas with 10 nm accuracy. The setup features the above-mentioned IBA detectors, enabling a broad range of analysis applications such as the operando analysis of batteries or the post-mortem analysis of plasma-exposed samples with up to 3000 discrete points per day. Custom apertures and energy resolutions down to 11 keV enable separation of Fe and Cr in RBS. This work presents the technical solutions together with the quantification of these challenges and their success in the form of a technical reference.

 Artículos similares

       
 
Zhaoxu Peng, Minghui Liu, Tingmei Li, Wangcheng Zhang, Yanpeng Wang, Luji Yu and Jiantao Ji    
Given increasingly prominent environmental issues, there is a pressing need to satisfy more stringent emission standards for wastewater treatment plants (WWTP) while concurrently prioritizing energy conservation; a new up-flow layered nitrogen removal fi... ver más
Revista: Water

 
Wenxun Dong, Zhengguo Cui, Mengjuan Zhao and Junfeng Li    
Planktonic cells are a vital part of biogeochemical nutrient cycling and play an extremely important role in maintaining the balance of water ecosystems. In this study, surface water samples were collected in three seasons (spring, summer, and winter) 10... ver más

 
Oceanne E. Himmighofen, Maria Holzmann, Inés Barrenechea-Angeles, Jan Pawlowski and Andrew J. Gooday    
The abyssal Pacific Clarion Clipperton Zone (CCZ) hosts vast, commercially valuable seafloor deposits of polymetallic nodules. Foraminifera (testate protists) dominate benthic communities in this region. Here, we present a taxonomic survey, combining mor... ver más

 
Laura Madrid-Márquez, Cristina Rubio-Escudero, Beatriz Pontes, Antonio González-Pérez, José C. Riquelme and Maria E. Sáez    
Background and Objectives: The burst of high-throughput omics technologies has given rise to a new era in systems biology, offering an unprecedented scenario for deriving meaningful biological knowledge through the integration of different layers of info... ver más
Revista: Applied Sciences

 
Alessandra Betti    
The Liquid Argon Calorimeters are employed by ATLAS for all electromagnetic calorimetry in the pseudo-rapidity region |&#x3B7;|&lt;3.2" role="presentation" style="position: relative;">|?|<3.2|?|<3.2 | ? | < 3.2 , and for hadronic and forward calo... ver más
Revista: Instruments