Cryostat Cryoplate (LSST)

Project Summary

The Cryostat Cryoplate was the first of its kind to ever be developed. This is because it was developed for the largest digital camera ever built, The Large Synoptic Survey Telescope (LSST). We took the engineering and design of the Cryoplate from the early stage 3D CAD models the customer provided all the way to the final product.  Our complete turnkey solution did not just include the engineering and design of the product, we developed the entire manufacturing process and the necessary tooling/fixturing to conform and braze a 40 foot array of SST tubing to a 27 inch x 27 inch copper plate.

  • Start Date 03/27/2018
  • Customer: SLAC
  • Product: ARG & Brazing Services
  • Altair Engineer: Adam Mitchell
Cryostat Cryoplate Braze Set-Up-1

The Challenge & Solution

The challenge was designing fixturing that would deliver the force required to conform the SST tubing to the Cu plate, making up for the inherent lack of precision with bent tubing. The development of the fixturing system to conform the SST tubes to the Copper plate was crucial to the success of the LSST Cryoplate project. The project was a long and very involved project that required a good working relationship between the Altair and SLAC teams over the course of 8 months.  During the project, custom tools and precision furnace profiles were developed to meet the customer’s requirements.

Braze Set-Up 1
Braze Set-Up 2
Braze Set-Up 3
Braze Set-Up 4

Why Choose Altair for This Project

Altair has the experience, equipment, and creativity to pull together a project of this scale and criticality. The LSST Cryoplate project was a long and very involved project that required a good working relationship between the Altair and SLAC teams, over the course of 8 months. During the project, custom tools and precision furnace profiles were developed to meet the requirements of project

Real-Time Expertise Saves

A risk assessment by the customer determined that 2 assemblies should be built to mitigate any risk of accidents or missteps. Altair was successful in brazing this assembly on the 1st pass.

Facilities & Equipment Used

In-House Engineering and Solidworks 3D CAD for fixture design, CNC Machine Shop to manufacture fixturing, and our largest vacuum furnace (Ø48” x 60” tall) for the brazing of the assembly.

The Process Employed

01
ARG (The Altari Research Group) Engineering and Design
02
Custom Tooling, Fixturing & Precision Furnace Profiles
03
Iterative process tuning to produce the desired results with the customer.
04
Cleaning, Vacuum Brazing and Testing of the Product

Want to Learn More About Us?