Novel boron-10-based detectors for neutron scattering science
- 364 Downloads
Nowadays neutron scattering science is increasing its instrumental power. Most of the neutron sources in the world are pushing the development of their technologies to be more performing. The neutron scattering development is also pushed by the European Spallation Source (ESS) in Sweden, a neutron facility which has just started construction. Concerning small-area detectors (∼ 1 m2), the 3He technology, which is today cutting edge, is reaching fundamental limits in its development. Counting rate capability, spatial resolution and cost effectiveness, are only a few examples of the features that must be improved to fulfill the new requirements. On the other hand, 3He technology could still satisfy the detector requirements for large-area applications (∼50 m2), however, because of the present 3He shortage that the world is experiencing, this is not practical anymore. The recent detector advances (the Multi-Grid and the Multi-Blade prototypes) developed in the framework of the collaboration between the Institut Laue-Langevin (ILL) and ESS are presented in this paper. In particular two novel 10B-based detectors are described; one for large-area applications (the Multi-Grid prototype) and one for application in neutron reflectometry (small-area applications, the Multi-Blade prototype).
KeywordsNeutron Detection Anode Wire Neutron Facility Counting Rate Capability Instrumental Power
- 1.S. Peggs, ESS Technical Design Report, ESS-doc-274 (2013).Google Scholar
- 3.R. Cooper, A program for neutron detector research and development, in Proceedings of the Workshop Held at Oak Ridge National Laboratory July 12-13, 2002 (2003).Google Scholar
- 4.R. Hall-Wilton, Detectors for the European Spallation Source, in Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Anaheim, IEEE TNS (2012) pp. 4283--4289.Google Scholar
- 5.D.A. Shea, D. Morgan, The Helium-3 Shortage: Supply, Demand, and Options for Congress, Congressional Research Service, 22 December 2010.Google Scholar
- 6.R.T. Kouzes, The 3He Supply Problem, Technical Report 11-753, US Government Accountability Office 2011.Google Scholar
- 11.T-REX Proposal, submitted for consideration, ESS instrument proposal round 2013-4.Google Scholar
- 12.FREIA - ESS Instrument Construction Proposal 2013.Google Scholar
- 14.Patent no. 20110215251.Google Scholar
- 15.J.C. Buffet, Study of a 10B-based Multi-Blade detector for Neutron Scattering Science, in Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Anaheim, IEEE TNS (2012) pp. 171-175.Google Scholar
- 23.A. Khaplanov, Multi-Grid Boron-10 detector for large area applications in neutron scattering science, arXiv:1209.0566 (2012).
- 26.J. Hofmann, Natural Radionuclide Concentrations in Materials Processed in the Chemical Industry and the Related Radiological Impact, European Commission Report EUR 19264 (2000).Google Scholar
- 27.K. Zeitelhack, Investigation of 3He Proportional Counters for Neutron Detection made from Ni-coated Aluminium tubes, Internal Report Detectorlab FRM-II (2001).Google Scholar
- 28.Praxair - Surface technologies, http://www.praxairsurfacetechnologies.com/.
- 29.Norsk Hydro ASA - Aluminium metal and aluminium products, http://www.hydro.com/.
- 30.Y. Blanc, Le Spectrometre a temps de vol IN6, ILL report 83BL21G (1983).Google Scholar
- 33.Reflectometry instruments. ESS Instrument Construction Proposal round 2013.Google Scholar