||LDX Project Status
January 23, 2003
Measurements of the lengths of all 24 laminated metal supports required to center the floating coil within the cyrostat were repeated at Ability Engineering Technology. New measurements were required in order to correct a procedural error in the assembly of the cyrostat support arms. Darren Garnier and Rick Lations made several trips to the South Holland, IL facility to supervise the new measurements, and these have now been completed.
The inlet helium transfer line has been received from Quality Cryogenics, where it was remade according to MIT requirements. Both inlet line and outlet transfer line (made previously by Technifab Products) were tested successfully using liquid nitrogen.
The upper shield has been adjusted and cut to the correct size, and the cryostat was successfully pre assembled. Then the cryostat was disassembled again. Cryostat parts were washed and cleaned before the final assembly.
Special railway tracks were installed to move the cryostat parts to the clean vacuum shop were the final assembly will be performed. All cryostat parts have now been moved to the vacuum shop.
The specially-prepared reflective shields are being installed into the cryostat vessels. All materials for the installation have been delivered to Sintez. Sintez has built two spot welding apparatuses required for this installation. The job is performed together with Vacris company (Russia), whose production and technology is being used in the C-coil project.
The Sintez stand is being prepared for installation of the C-coil for vacuum and acceptance tests. Alex Zhukovsky will arrive in St. Petersburg to witness coil testing on February 15.
Assembly the levitation-coil cryostat is proceeding well. The flexible foil thermal links have been attached. A frame has been fabricated to support the cryostat during assembly, and the top cover of the cryostat has been suspended from it. The first portion of the MLI blanket has been cut to size. The nitrogen reservoir and top plate of the radiation shield have been polished to improve the surface finish and reduce emissivity. We are now preparing for the final installation of the levitation coil into the cryostat. This will complete the assembly.
We have installed the mechanical drives for the launcher system, and we have begun testing the lifting system for the floating coil.