English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Bradbury Nielsen gates are well known devices used to switch ion beams andare typically applied in mass or mobility spectrometers for separating beamconstituents by their different flight or drift times. A Bradbury Nielsen gateconsists of two interleaved sets of electrodes. If two voltages of the sameamplitude but opposite polarity are applied the gate is closed, and foridentical (zero) potential the gate is open. Whereas former realizations of thedevice employ actual wires resulting in difficulties with winding, fixing andtensioning them, our approach is to use two grids photo-etched from a metallicfoil. This design allows for simplified construction of gates covering largebeam sizes up to at least 900\,mm$^2$ with variable wire spacing down to250\,\textmu m. By changing the grids the wire spacing can be varied easily. Agate of this design was installed and systematically tested at TRIUMF's iontrap facility, TITAN, for use with radioactive beams to separate ions withdifferent mass-to-charge ratios by their time-of-flight.

international journal of mass spectrometry

A large Bradbury Nielsen ion gate with flexible wire spacing based on  photo-etched stainless steel grids and its characterization applying  symmetric and asymmetric potentials