WBS 5 - Instrumentation & Controls (Jordan)

The beam instrumentation effort was focused on both the description of the required devices and on the mechanical design for the low impedance beam viewer assembly and beam position monitors. These designs are both 80 % complete.  Discussions are ongoing with the Argonne controls group about adapting the APS machine protection system for use with the FEL.

WBS 7 - Beam Transport (Biallas)

Activity this month consisted of starting contracts for all activities with the associated groups, laying out the machine and firming up concepts on powering, magnetic elements, vacuum pipe and interface to injector, cryomodule, optical cavity and diagnostics. Prototyping the main quadrupole started. Outstanding major issues are: (1) increasing the engineering and design personnel available in the Mechanical Engineering Group, (2) freezing the lattice, (3) fixing on a design energy and dynamic range for magnetic elements, (4) choosing the magnetic element strings to be powered by single supplies, (5) generating accelerator physics lattices for the dumps and (6) reducing the cost from the increases in scope.

BCWS 1622 k$

Real schedule slip estimated at 0 weeks for the major January '97 milestones of receipt of Quadrupoles and sextupoles and receipt of the 180° Dipoles.

WBS 8 - RF (Walker)

All three 50 KW klystrons were tested this month. Two of the klystrons are usable at full power and the 3rd is usable at a reduced power level. A workable solution was found for the klystronsí LCW leaks.

All internal contracts for the IR FEL have been signed off by all parties.

The software for the RF Module feeding the Divide by 40 Chassis is working at the prototype level.

The Divide by 40 Chassis is operating and is ready for testing with the laser.

EPROMís for the downloadable microcode have been installed in 2 RF Modules and they are operational.

Checkout of the 5 KW HPA for the Buncher was started this week.

The installation of the waveguides to the cave is in progress.

The 2nd CPS for the 50 KW klystron is nearly ready to be shipped to CEBAF.

WBS 9.2 - Injector move (Benson)

Developed conceptual design for the high voltage power supply to be used for the injector in the FEL facility. Got signed off work package for producing the high voltage power supply as well as other work necessary to prepare for the injector move.

Waiting for estimates from vendor for move of injector drive laser clean room to verify budget estimate for moving cost.

WBS 9.4 - Wiggler (Benson)

Technical specifications for IR Demo wiggler were completed and signed off. In addition, the instructions to offerors and evaluation factor for the bid package were completed. The bid package went out to four companies on April 16. Oxford Instruments declined to bid. STI Optronics requested and received an extension to May 23 for the bid deadline.

May have added one week of schedule slip to wiggler delivery but we will not know for sure until bids come in.

Signed off work package with Accelerator Engineering Group for construction of the wiggler stands and vacuum chamber.

WBS 9.6 - Optical System (Shinn)

Interacted with Accel. Div. managers to get commitments for staff support. Their input has required changes in schedule and thus, earned value. I also modified my budgets to bring them into line with increased costs for diagnostics. The bottom line did not change, by dropping allocations for subcontracts we don't need immediately.

Analyzed P. Kloeppel's calculations of the thermal deformation of the CaF2 mirror substrates. I've derived coefficients for the polynomials describing this deformation, so they may be used in the GLAD optics code to determine the effect on the laser.

Work continued to better define the drawings for the optical cavity and transport.

Interacted with LPC members (CNU and Armco).

Prepared and gave a presentation on FEL optics at the Kick-Off Meeting.

ITS

Installed remote mirror adjustment controls on the Optical Transport System (OTS), and cleaned and aligned optics.

Characterized beam expansion optics that will be used during commissioning of the ITS.

Characterized one EO modulator that will be used during commissioning of the ITS. Work began on characterization of the last EO modulator.