30 June 2016 to 1 July 2016
Other Institutes
Europe/Zurich timezone

A cheap and highly-available source-based testbed for novel neutron detectors

Not scheduled
10m
Auditorium & Conference Room (Other Institutes)

Auditorium & Conference Room

Other Institutes

ESADE Business School, Avenida Pedralbes, 60-62, 08034 Barcelona, Spain.

Speaker

Hanno Perrey (Lund University)

Description

Neutrons are important probes of matter and are crucial for an
increasing number of applications in both scientific and industrial
fields. A key element for such studies is the ability to reliably
detect neutrons. One of the most common neutron detector technology in
neutron imaging today are He-3 gas-based detectors. However, due to
the increasing scarcity of He-3, alternative technologies are
desperately needed.

It is vital for each of these new technologies and the resulting
instrument prototypes to be tested at a dedicated facility offering
neutron irradiation. This is typically done using either standard
neutron-emitting radioactive sources or by going to a reactor beam
line. However, the latter is both highly limited in available beam time and
prohibitively cost intensive while the former typically only provides
functional tests.

This is where a technique called "tagging" comes in. Tagging neutrons
makes it possible to study the detector responses as function of
neutron energy even with standard radioactive sources. This data is
absolutely crucial to evaluate detector performance but is missing in "classical"
irradiations of detectors with radioactive sources.

The method of tagging high-energy or "fast" neutrons has already been
established and the corresponding setup is now located at the Source
Testing Facility (STF) at Lund University. By extending this method to
lower or "thermal" energies and by using different sources of
neutrons, the full energy range of neutrons could be made available
for in-depth tests of the neutron-response of detector prototypes --
cheap, safely and available around the clock.

Primary author

Hanno Perrey (Lund University)

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