Applications

Temperature-controlled Environment for Neutron Scattering

Neutron scattering is a very versatile tool for a wide range of disciplines, including physics, chemistry, materials science and engineering.  A beam of neutrons will scatter off the nuclei inside the material, giving the researcher detailed information about the structure of the material.  Because neutrons are uncharged, they can penetrate deeply into the material without destroying it since they do not interact with the electrons surrounding the nucleus.

Janis Research cryostats for neutron scattering have the following design features:

  • All cryogenic systems for neutron scattering have a thin-walled neutron zone surrounding the sample area.  This neutron zone is most commonly made of aluminum, but occasionally can be vanadium.  It is an advantage to have these walls as far away from the sample as possible, in order to minimize interaction of the neutrons with the cryostat.
  • Some systems are self-supporting on a base plate that can be bolted to a gonionmeter, allowing the cryostat to be tilted by a few degrees.  Other systems have a long tail that reaches down into a well, the bottom of which opens to the neutron beam.
  • The sample environment can either be vacuum or static exchange gas.  Top loading static exchange gas systems are an advantage for a user facility becuase it is easy (and fast) to change samples.
  • Janis Research has built systems for operation as low as 300 mK or as high as 800 K. 
  • Systems can be designed with detachable tails (including cold tails with indium-sealed joints), allowing tail sets to be exchanged for different experimental configurations.

Existing designs include:

Contact Janis today for details of how our systems can be integrated into your laboratory.

A flyer of Janis Research's cryostats for neutron scattering applications is available to download. Please click on the link below. The downloaded file will be in PDF format which is viewable and printable with Acrobat Reader, a free plug-in utility from Adobe.

To download the free acrobat plug-in software click here.

Cryostats for Neutron Studies flyer (PDF, 131 KB) 
 

 

Janis

Cryogenic Research Equipment More>

Complete product list: