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provide the capability of delivering beams of rare isotopes for use by researchers. TEC is $1,400,000.

(3) At Los Alamos National Laboratory, we will install
advanced beam current control and monitoring instruments
at the main LAMPF beam stop and replace 60 of the 104
quadrupole focusing magnets in the proton linac with
improved magnets. These improvements will correct opera-
tional problems and reduce down time as well as provide
new capability for research programs. TEC is $1,100,000.
(4) At the Massachusetts Institute of Technology, modification
of the radiofrequency power system at the Bates Linear
Accelerator Center is planned to increase the peak power
capability. This change will increase reliability for
running in the 600 to 840 million electron volt energy
range and provide the option of increasing the maximum
energy to approximately 1,000 million electron volts.
is $340,000.

Question:

Explain the need for $3.5 million in FY 85 allocated for GPP projects. How does this compare to FY 84?

TEC

Answer: Of the $3,500,000 requested in FY 1985 for GPP projects, $2,500,000 is needed at the Lawrence Berkeley Laboratory. The Nuclear Physics program has the responsibility of providing for the general plant needs of the entire laboratory. These needs include an ultra high vacuum processing facility, a storage yard for plant engineering and construction equipment, a PCB and radioactive materials storage area, and various building rehabilitation and small upgrade projects. At the Los Alamos National Laboratory, a $950,000 service building to house personnel associated with LAMPF day-to-day experimental area operations is needed to move people out of the present antiquated and inefficient house trailers now used for office space. At the MIT Bates Linear Accelerator Center, $50,000 is needed for minor building and roadway improvement projects.

In FY 1984, a total of $2,500,000 was appropriated and distributed as follows: $1,500,000 at Lawrence Berkeley Laboratory, $500,000 at Los Alamos National Laboratory for LAMPF plant projects, and $200,000 at Massachusetts Institute of Technology Bates Linear Accelerator Center. The main difference between FY 1984 and FY 1985 is that the request for Lawrence Berkeley Laboratory is $1,000,000 higher in FY 1985. This increase is necessary to maintain efficiency and safety standards at the physically oldest of the national laboratories.

CEBAF

Question: Explain your plans for the $2 million which is requested in FY 84? Provide a breakdown of the request and the need to proceed in FY 84 with each element of the request.

Answer: Our $2,000,000 reprogramming would provide for FY 1984 research and development (R&D) activities in support of the Continuous Electron Beam Accelerator Facility (CEBAF) project. These R&D activities include: (1) development of CEBAF's scientific and administrative infrastructure; (2) detailed design and optimization studies on the recirculated linear accelerator and pulse stretcher ring which are the technical heart of the CEBAF accelerator; and (3) prototype of key items of equipment such as the radiofrequency systems which will drive the linear accelerator, the resonant cavities which will accelerate the electron beam, the injection and extraction systems for the pulse stretcher storage ring which will smooth the linear accelerator's pulse into a continuous beam, and the bending and focusing magnets which will transport CEBAF's electron beam through the accelerator complex and into experimental research areas. While the technical feasibility of the CEBAF linear accelerator/pulse stretcher ring concept is established, R&D activities are essential to convert technical feasibility into detailed design. This is true of all major accelerator projects.

Of the $2,000,000, $915,000 is budgeted for development of CEBAF's scientific and administrative infrastructure. The key activity is recruitment and support of people who, in the near term, will carry out those detailed design and optimization studies necessary for a reliable project schedule and cost estimate and who, in the longer term, will be the nucleus of the team responsible for construction of CEBAF. The most urgent needs are for a permanent facility director and deputy director, an associate director of CEBAF's Technical Division, an associate director of CEBAF's Administrative Services Division, a project engineer, two engineers experienced in high power radiofrequency systems, four accelerator physicists, plus administrative personnel to support the scientists and engineers. Development of CEBAF's infrastructure also includes establishment of an integrated accounting system, lease of two minicomputers for design studies and administrative use, and acquisition of small items of test equipment.

The detailed design and optimization studies are necessary to establish a reliable project schedule and cost estimate for CEBAF and to establish criteria for construction and R&D activities in FY 1985. In addition to personnel costs cited above, $235,000 is needed in FY 1984 for advanced engineering studies and consultant services by non-CEBAF staff.

The most pressing need for prototype development is in the area of the high power systems which convert ordinary AC line power to the radiofrequency power required to drive an electron linear accelerator; $700,000 is budgeted for this purpose. Outcome of this prototype work will determine major cost and performance

components of the CEBAF linear accelerator.

An additional $150,000

is planned for prototype of beam transport and experimental area

systems.

Question: How much is requested in FY 85 for the Continuous Electron Beam Accelerator Facility (CEBAF) project?

Answer: The FY 1985 Budget Request is $5,000,000 in Operating Expenses to continue and extend research and development (R&D) activities and $2,000,000 in Construction funds to initiate the construction project itself.

Question: Why is it necessary to proceed with construction activity in FY 85? What is the proposed schedule?

Answer: To avoid delay of the overall project, some sitespecific work must be done in FY 1985. This work includes: modification and rehabilitation of parts of the existing, Governmentowned Space Radiation Effects Laboratory building to house Continuous Electron Beam Accelerator Facility (CEBAF) staff and research and development activities; architect/engineering work; detailed design beyond the conceptual level; detailed examination of geologic structures; and minor site modification such as possible relocation of utilities and roads. Construction funds are needed for these activities.

To some considerable extent, our FY 1985 construction schedule will be determined by the availability of the $2,000,000 of FY 1984 reprogrammed funds. Orderly buildup of CEBAF's technical and administrative staff and other infrastructure is essential to conduct of FY 1985 construction work. Our FY 1985 construction objective is completion of architect/engineering work, detailed design work, and minor site work to the point that bid packages for critical path items of conventional construction and long lead-time accelerator components can be released as soon as FY 1986 construction funds are available. We believe that this objective can be met with the $2,000,000 in FY 1984 reprogrammed funds.

Question: What is the total cost of the project anticipated to be at this time? What is the basis for this cost estimate?

Answer: Exact construction costs and project schedule are presently under review. At this time, we estimate that construction costs for the Continuous Electron Beam Accelerator Facility (CEBAF) will not exceed $225 million. This estimate is based upon our review of a draft Conceptual Design Report submitted to us by Southeastern Universities Research Association and a formal review of the CEBAF construction project. This review was conducted on February 27 and 28, 1984 by Department of Energy Headquarters and Oak Ridge Operations Office staff.

Question: What would be your estimate of the annual operating expenses for the project? What would be the total number of years of operation?

Answer: Upon completion, we expect the Continuous Electron Beam Accelerator Facility (CEBAF) to require an annual operating

budget of approximately $15 million in FY 1984 dollars for facility operations. Facility operations includes all costs of operation and maintenance of the accelerator complex, permanently installed equipment, and the physical plant--that is, all costs of delivering beam for use by research scientists. In addition, an annual budget of about $5 million will be required for research by CEBAF staff and for plant and instrumentation improvements.

Because accelerator facilities are continuously upgraded to meet evolving scientific challenges, their useful life is basically determined by their ability to respond to these evolving challenges. The technical design concept for CE BAF's accelerator and experimental facilities is sound and flexible. In its examination of competing accelerator designs, the DOE/NSF Nuclear Science Advisory Committee specifically cited this capability for future expansion as an asset of the CEBAF proposal. Thus, we expect CEBAF to have a long and productive life. Based upon our experience with basic nuclear research facilities, we expect CEBAF to have a useful life of at least 20 to 25 years.

Question: Explain your statement on page 22, that $2 million in construction funding is to be used . . . . "in order to establish a reliable cost estimate for the CEBAF project."

Answer: Construction activities in FY 1985 will include architect/engineering work on the buildings to house the Continuous Electron Beam Accelerator Facility (CEBAF) accelerator complex and experimental areas, detailed design work beyond the conceptual level on key accelerator components such as accelerating structures and radiofrequency power systems, and detailed examination of site geology. Thus, these construction activities will refine our knowledge of major cost components of the CEBAF project and enable us to establish a more reliable cost estimate for the CEBAF project.

Question: Provide a breakdown of the $2 million construction request, including the amount for site work and a description of this work.

Answer: The $2,000,000 in Construction funds will be used as

follows:

Engineering and Design of the Accelerator
Technical Components

$1,100,000

Detailed design of long-lead time accelerator components will be performed to the point that a set of drawings exist that can be used in competitive bid packages. This requires that alternative designs be developed in enough detail so that the best one is selected. Equipment used at other accelerator laboratories will be compared to make sure the best technical principles and design techniques are utilized.

For the linear accelerator (linac), a careful study of all aspects of the accelerator structure is very critical. The radiofrequency cavity structure will be studied from many aspects, energy gain, heat dissipation, transient beam loading, beam break-up modes,

dimensional stability, ease of manufacture, quality assurance, and life time. Detailed design of the cavity structure for the

linac will be done. The klystron radiofrequency power tubes and pulse switching devices will be selected and optimized for high power use in the CEBAF environment.

The optics of the beam recirculator will be examined to select the best overall geometry, number, and size of bending magnets and choice of focusing elements. Shop drawings will be prepared.

The layout of the beam switchyard will be determined. This requires studies of various alternatives, including the design and engineering of the magnets which will rapidly switch the beam to the three target areas on a pulse to pulse basis.

The Pulse Stretcher Ring will be engineered for the high power beams it must carry. Careful study is needed to select the right choice for radiofrequency cavities in the stretcher ring.

The control systems for the accelerator will receive detailed attention. The high power of the beam requires instantaneous response to corrective signals in order to prevent damage to components. A sophisticated computer control system will be designed to monitor every function in the accelerator and to enable switching of the beam among the three target areas at a rate of 1,000 pulses per second.

Architectural/Engineering Work on Conventional

Construction

$ 750,000

The design of the accelerator tunnels is the first priority. Various alternative approaches will be investigated to find the most satisfactory solution. The need for thick radiation shielding is of paramount importance. The choice of tunnel depth depends on many factors: the availability of fill, ground water, long term stability for the purpose of preserving accelerator alignment, and cost. Optimum tunnel depth will be determined. Ventilation procedures will be determined for control the activated air which will be generated near accelerator components.

The design for the experimental area will be developed to provide the maximum flexibility for the future experimental program. The above-surface structures for the radiofrequency power equipment, magnet control devices, cooling systems, and power substations will be designed.

Support structures to house the accelerator control activities, preparation of experiments, and offices for the operations staff will be designed.

Initial rehabilitation of the Space Radiation Effects
Laboratory building

$ 100,000

In order to have space available to test the prototype high powered klystrons and modulators for the radiofrequency power system of the linac, some rehabilitation of the SREL building will be

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