Abstract In this article, the ongoing development progress of polarized neutron technique developments at China Spallation Neutron Source (CSNS) is presented. The general goal establishing capability in parallel to CSNS beamline construction also explained. key instrument projects developing Spin-Exchange Optical Pumping (SEOP) 3 He systems, devices, and their application on beamlines are demon...

The U.S. Spallation Neutron Source (SNS) is an accelerator-based, pulsed neutron-scattering facility currently in the process of ramping up neutron production. To meet present and future beam current and reliability requirements we are developing an RF-driven, H ion source based on a ceramic aluminium nitride (AlN) plasma chamber surrounded by an external RF antenna. This report recounts the de...

The Low Energy Neutron Source (LENS) is an accelerator-based pulsed cold neutron facility under construction at the Indiana University Cyclotron Facility (IUCF). The idea behind LENS is to produce pulsed cold neutron beams starting with ∼MeV neutrons from (p,n) reactions in Be which are moderated to meV energies and extracted from a small solid angle for use in neutron instruments which can ope...