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    Development and validation of a CFD-enabled digital twin of a portable HPGe gamma spectrometer
    (IOP Publishing, 2020-01-22) Jeltsov, Marti; Priimägi, Priit; Malgin, Vladislav; Takovlev, Oleg; Tkaczyk, Alan H.
    This paper presents the design of an easily portable spectrometer using high purity germanium (HPGe) detector – HandSpec. The key challenge in the design of a lightweight spectrometer is to minimize its heat losses so that efficient electric cooling could be used instead of bulky dewars. The design process has been largely based on experimental investigations. In this study, a digital twin of the HandSpec cryostat using computational fluid dynamics (CFD) method is developed to support the design and optimization of the physical prototype.