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

Bo Jakobsen, Alexander Holmes, Torben Steen Rasmussen, Harald Schneider, Anders Pettersson, Arno Hiess, Kristine Niss

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


Abstract. A longstanding problem in facility based experiments is the time one must wait whilst changing sample temperature. This issue is
most often confronted at cryogenic temperatures above 100 K, where thermal response times can be very slow. These can be drastically reduced
by minimising the amount of material being controlled to as little as possible beyond the sample itself. Peltier elements provide an effective
way to achieve this, but are mostly used to regulate with respect to room temperature. We report on the Huginn sub-cryostat, a cryostat insert
with dual Peltier regulation, useable down to 100 K, that enables large and rapid temperature jumps of up of 10 K to 20 K in minutes or less.
Moreover, temperature stability is improved by an order of magnitude in the presence of a variable background temperature.
TidsskriftJournal of Neutron Research
Udgave nummer1-2
Sider (fra-til)47-57
Antal sider11
StatusUdgivet - 2019

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