Huginn: A Peltier-based sub-cryostat for neutron scattering

A helium-flow cryostat (3 to 300 K) for neutron four-circle spectrometry

2014 We describe a continuous-flow cryostat system with spherical geometry and full 360° freedom of motion for all three Euler angles. The cryostat does not increase the dead angular zones of the Euler-cradle itself. Any sample temperature between 3 K and 300 K can be set and kept gradient-free and constant by a computer controlled temperature regulation. The time constant of the device is in t...

Sub-pixel correlation length neutron imaging: Spatially resolved scattering information of microstructures on a macroscopic scale

Neutron imaging and scattering give data of significantly different nature and traditional methods leave a gap of accessible structure sizes at around 10 micrometers. Only in recent years overlap in the probed size ranges could be achieved by independent application of high resolution scattering and imaging methods, however without providing full structural information when microstructures vary...

Small angle neutron scattering

Small Angle Neutron Scattering (SANS) is a technique that enables to probe the 3-D structure of materials on a typical size range lying from ∼ 1 nm up to ∼ a few 100 nm, the obtained information being statistically averaged on a sample whose volume is ∼ 1 cm3. This very rich technique enables to make a full structural characterization of a given object of nanometric dimensions (radius of gyrati...

Neutron Scattering Technique

Neutron scattering technique is the most modern method of sampling the dynamics and structural properties of molecular systems. Neutrons interact with atoms via nuclear which has nuclear forces that are very short ranged. For this reason, neutrons can better penetrate into sample matter and obtain the information that would have been able to by other methods, such as x-rays. In this paper, we s...

Introduction to Neutron Scattering