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On April 24, 1990, Dr. James F. Decker, Acting Director, Office of Energy Research, gave testimony before your subcommittee on Superconducting Super Collider programs.
Prior to that hearing, you submitted written questions for
Jacqueline Knox Bron
200 adquel ille Knox Brown Assistant Secretary leongressional and Intergovernmental Affairs
PRE-HEARING QUESTIONS AND ANSWERS
APRIL 24, 1990, HEARING
SUBCOMMITTEE ON ENERGY RESEARCH AND DEVELOPMENT
COMMITTEE ON ENERGY AND NATURAL RESOURCES
UNITED STATES SENATE
WITNESS: JAMES F. DECKER
ACTING DIRECTOR OF ENERGY RESEARCH
QUESTIONS FROM SENATOR FORD
1. Cost Estimate
The sum of as-spent dollars for the ssc project from FY 1988
The Department is in the process of refining the cost estimates for the SSC project and is conducting a number of independent
reviews of the SSC Laboratory's estimate. These reviews will be
completed in the June time frame. The Department plans to have
validated a cost estimate, along with a baseline design and
schedule, in August of this year. A report on this new cost
estimate will be provided to the Congress at that time.
In the meantime, it is fair to say that the estimated cost
increase is expected to be closer to the $2 billion number.
The details will be provided to the Congress when the final cost
How did the need for this cost increase become apparent?
The need for this cost increase is related to two major factors:
better estimates of schedule, updated funding profiles, labor,
material, and tooling costs; and technical changes.
The technical changes arise from two technical factors related
to so-called persistent currents in the magnets that were unknown at the time of the 1986 conceptual design and beam stability requirements to reduce the number of particles lost
from the beam as it makes the 10 million turns necessary at
injection. These two factors result in the need to increase the
injection energy from 1 to 2 Tev, to increase the magnet bore diameter from 4 to 5 centimeters, and a slight increase in the
circumference from 52 to 54 miles.