28 June 2015 to 2 July 2015
JW Marriott Starr Pass Resort
Etc/GMT-7 timezone

Numerical investigation on the temperature control of a NIF cryogenic target

Not scheduled
2h
JW Marriott Starr Pass Resort

JW Marriott Starr Pass Resort

Tucson, Arizona USA
Poster Presentation CEC-15 - Instrumentation and Controls

Speaker

Dr gang zhou (Technical Institute of Physics and Chemistry, CAS)

Description

Numerical investigation was performed on the temperature control of NIF cryogenic target in order to get a temperature uniformity of 0.1mK on the surface of the target capsule. Heat transfer process was discussed to find out major factors in the temperature control, tamping gas heat transfer and natural convection of the tamping gas was calculated. Spherically symmetric temperature field is required due to energy released from the tritium decay within the capsule, auxiliary heating is set on the hohlraum to compensate the higher heat loss caused by the lower tamping gas thermal resistance on the mid plane. Natural convection effect of the tamping gas is reduced by separating the tamping gas with plastic films and independent temperature control of the cooling arms. This research may provide theoretical foundation and reference for temperature control on the cryogenic target.

Primary author

Ms Yu Sun (Technical Institute of Physics and Chemistry, CAS)

Co-author

Dr gang zhou (Technical Institute of Physics and Chemistry, CAS)

Presentation Materials