2023 CAP Congress / Congrès de l'ACP 2023

The liquid deuterium system for the TUCAN source

19 Jun 2023, 16:45

15m

UNB Tilley Hall (Rm. 205 (max. 85))

Oral (Non-Student) / Orale (non-étudiant(e)) Nuclear Physics / Physique nucléaire (DNP-DPN) (DNP) M3-4 Testing the Standard Model at low and intermediate energies | Tester le modèle standard à des énergies faibles et intermédiaires (DPN)

Speaker

Prof. Jeffery Martin (The University of Winnipeg)

Description

The TRIUMF Ultracold Advanced Neutron (TUCAN) source, when completed, will be a world-leading source of ultracold neutrons. The source is a unique combination of a spallation target coupled to a superfluid helium converter. A key component of the source is the liquid deuterium moderator, which surrounds the superfluid helium converter. The goal of the LD${}_2$ moderator is to provide a high flux of cold neutrons into the superfluid, where they are then downscattered to become UCN. The liquid deuterium moderator has a 125 L volume, and experiences a heat load of 60 W for the design proton beam current of 40 $\mu$A. Cooling is provided by a distant cryocooler at higher elevation, in a thermosyphon loop with the moderator volume. The thermosyphon solution is unique in featuring no moving parts and single-phase (liquid) operation. This presentation will focus on the design of the liquid deuterium system, and the status and plans for this important component of the UCN source.

Presentation materials

jmartin-ld2-cap-2023.pdf

jmartin-ld2-cap-2023.pptx