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Publications - Thales Cryogenics

SPIE Paper – Lifetime Validation of High Reliability Rotary Cryocoolers for specific customer profiles

The cooler reliability is a major performance requested by the customers, especially for 24h/24h applications, which are
a growing market. Thales has built a reliability policy based on accelerate ageing and tests to establish a robust
knowledge on acceleration factors. The current trend seems to prove that the RM2 mean time to failure is now higher
than 30,000hr. Even with accelerate ageing; the reliability growth becomes hardly manageable for such large figures.
The paper focuses on these figures and comments the robustness of such a method when projections over 30,000hr of
MTTF are needed.
Keywords: Cryogenics, MTTF, reliability, Weibull, Weibayes, Stirling, Cooler, IR detector.


Jean-Marc Cauquila, Cédric Seguineaua, Christophe Vassea, Gaetan Raynala, Tonny Benschopb
aThales LAS France S.A.S., 4 Rue Marcel Doret, CS70022, F-31701 Blagnac France;
bThales Cryogenics B.V., Hooge Zijde 14, 5626 DC Eindhoven, Netherlands

OPTRO Paper – New developments in the definition of Cryocoolers

The needs and developments in Optronic sensing define new demands for the cryocoolers used. This

is especially true for high quality IR sensing in either defence, homeland security or space applications. Thales Cryogenics, a leading supplier in this field, is continuously updating its product

portfolio to address these market needs in the civil, military or space domain. In this paper Thales Cryogenics will present its latest developments already available to the market today or under development for the future.

Principal Tonny Benschop (1), Garmt de JONGE (2), Cedric Sequineau (3)…

2nd IWC-HTS Applications – Thales presenting latest cooler developments

The 2nd International Workshop on Cooling Systems for HTS Applications was organised in conjunction with the European Cryogenics Days 2017 in Karlsruhe, Germany, on September 13-15, 2017. The workshop is a follow-up of the 1st IWC-HTS held in October 2015 in Matsue, Japan. Its purpose is the effective exchange of up-to-date information on cryocooler and cryoplant developments for High-Temperature Superconductivity (HTS) applications, as well as state-of-the-art methods for the optimal integration of HTS applications and cooling systems.

For this event Thales was invited to update the audience on recent cryocooler developments. Miniature cryocoolers are traditionally being used for cooling spectroscopy sensors for defense, civil and space instruments. Lately, cooling solutions for zero-boil-off systems are being successfully developed, thereby removing the burden for our customers in the liquid nitrogen cooling business to constantly refill their cryostat systems.

The stringent cooling requirements of compact HTS applications can also be ideally fulfilled by clever engineering of Thales’ proven technology of the Stirling and Pulse-Tube principles. The attached presentation gives an insight into the latest developments with respect to cooler performance and reliability, enabling the advance of HTS in modern technology.