  The Multi-Blade is a Boron-10-based gaseous detector introduced to face the
challenge arising in neutron reflectometry at pulsed neutron sources. Neutron
reflectometers are the most challenging instruments in terms of instantaneous
counting rate and spatial resolution. This detector has been designed to cope
with the requirements set for the reflectometers at the upcoming European
Spallation Source (ESS) in Sweden. Based on previous results obtained at the
Institut Laue-Langevin (ILL) in France, an improved demonstrator has been built
at ESS and tested at the Budapest Neutron Centre (BNC) in Hungary and at the
Source Testing Facility (STF) at the Lund University in Sweden. A detailed
description of the detector and the results of the tests are discussed in this
manuscript.
