Overview of On-going Cryogenic Work At the MTA Barry Norris AD/Cryo February 14, 2005

The MuCool Test Area (MTA) Compressor Refrigerator Helium gas buffer Nitrogen dewar Experimental Hall Hydrogen Vacuum buffer Xfmer Location Gas Room

Cryogenic Effort Is On-going within Three Different Areas Support of Solenoid Move to MTA Overall Refrigerator and Compressor Complex Support of Continued Future Testing of KEK and Forced Flow Absorber Work

Cryogenic Effort #1 Support of Solenoid Move to MTA Mechanical effort underway… Piping installed for helium and nitrogen vents Helium transfer line taken from Lab G and modified to make more optimal use of helium Working with Al Moretti to understand transfer line positioning and shielding requirements

Electrical effort underway… Layout of cable runs, instrumentation on- going Implementing Class 1, Division 2 requirements into installation Relay rack installed and wired at MTA Using PLC and Internet Rack Monitor …ability to monitor all solenoid cryogenics from ACNET

Top View of Experimental Hall Top View of Open Air Pit Solenoid

Cryogenic Effort # 2 Overall Refrigerator and Compressor Complex

400 Hp Screw Compressors in Original Fermilab PS4 Site

Present Status Completed Mechanical Piping Drawing Mid-December 2004 Fermilab Contracts sending out Bid Requests This Week Bids Required Back by February 28 th, 2005

Bottom Line on Refrigerator Complex In March or Early April we anticipate the beginning of piping install…90 day contract anticipated Following contractor work: 3-4 month controls installation Refrigerators and Compressors could be fully operational by Oct 2005

Transfer Line Connection from Refrigerator Hall Farmed out to Fermilab Particle Physics Divison (PPD) Goal for completion for installation stage is Oct 2005 Until this connection becomes fully functional, we will operate with dewar fed system

Cryogenic Effort #3 KEK and Forced Flow In regards to KEK… 79 foot long transfer line for hydrogen test caused excess usage of helium as well as instabilities…we will shorten transfer line and validate instrumentation…hope to incorporate this into mechanical efforts of Solenoid Need to consider KEK cryostat itself and desire to re-instrument…KEK needs to take lead in this as well as resolve heater questions

In regards to Forced Flow Cryostat… Original 3D model exists for Cryostat Bates “Sample” Hydrogen Loop Project Completion On-Hold … Lack of Engineering Priority (Refer Details to Christine Darve talk)