**Mechanical Support Department** **[PHG Markup -- need to
insert]{.mark}**

**19.d. [Background]{.underline}**

The Mechanical Support Department provides all mechanical maintenance
and engineering support for the Accelerator complex other than cryogenic
needs and conventional plant utilities.

Although the Department is also tasked with maintaining and upgrading
complex-wide systems (primarily low conductivity water (LCW) and vacuum
systems), a large majority of its work consists of providing mechanical
engineering, drafting, and technician support for the Machine
Departments and Accelerator Division Projects.

**19. f. [Accomplishments in FY05]{.underline}**

The Mechanical Support Department continued its ongoing role of
maintaining and upgrading the systems and devices that make up the
accelerator complex. These tasks include change-out of failed
accelerator components, repair/construction of spare components, LCW and
vacuum system repair and maintenance, and upgrades to improve machine
performance. A few highlights are listed below:

-   Tevatron vacuum pipe upgrades in E-0 and D-0 with addition of

non-evaporative getter materials.

-   MiniBooNE Horn was change-out and began construction of spare horn.

-   Continued critical device spare production (Lithium lenses) for the
    P-bar Target Hall.

-   Cleaned the Tevatron LCW heat exchangers.

-   Water Quality Analysis Skids were completed and brought online at
    the Central Utilities Building.

-   AP-2 Beam stop was changed-out and re-design started.

The Department also participated in many of the Accelerator Division's
Projects and R&D efforts. Some highlights of these activities included:

-   Completed installation and commissioning of Electron Cooling into
    the Recycler Ring including ancillary water and SF6 gas systems.

-   Stacktail stochastic cooling upgrade in P-Bar Source.

-   P-Bar Source acceptance improvements, including production of
    diffusion bonded High Gradient Lithium Lenses (8 mm and Prototype
    2).

-   Construction of superconducting RF cavities and cryomodules in
    support of the Linear Collider and Proton Driver efforts (and
    SM&TF).

-   Installation, commissioning and operation of the NuMI beam line and
    Target Hall including production of spare horns and target.

**19.g.1. [Accomplishments Expected in FY06]{.underline}**

The Mechanical Support Department will continue to provide engineering
and technical support to the operation of the accelerator complex and
target halls. Maintenance and upgrades to systems under Mechanical
Support Department's control (primarily vacuum and low conductivity
water systems) will include the following:

-   Continue to repair and replace failed or obsolete vacuum equipment
    needed to maintain reliability of beam-tube vacuum for the
    accelerator complex.

-   Replace obsolete Tevatron vacuum pumping stations including
    shielding controls from beam radiation.

-   Purchase replacement filaments for two-sectors worth of titanium
    sublimation pumps (TSPs) for the Main Injector.

-   Install and commission the new pump room at MI-8.

-   Improve the Booster LCW system.

-   Add de-oxygenation systems at CUB for the Tevatron and Main Injector
    LCW systems.

-   Clean Main Injector LCW heat exchangers.

Mechanical Support Department will continue providing support to efforts
by the Machine Departments and Projects such as described in the
previous section.

1**9.g.2. [Future Accomplishments Expected in FY07 and
Beyond]{.underline}**

The Mechanical Support Department will continue to provide engineering
and technical support to the operation of the accelerator complex and
target halls similar to our FY06 efforts. The most notable of these are:

-   Continue vacuum reliability upgrades for the accelerator complex.

-   Continue operations support including spare device construction and
    change-out activities for MiniBooNE, NuMI, and AP-0 Target Halls.

-   Continue support for Proton Improvement Plan

-   Add an electro-deionization system to CUB.

-   Provide significant engineering, drafting and technician support to
    Linear Collider and Proton Driver efforts.