The Fermi National Accelerator Laboratory (Fermilab) is building an accumulator ring to store antiprotons for high energy physics proton-antiproton collisions in the Tevatron accelerator. The accumulator ring, approximately 474 m in circumference, consists of many quadrupole and dipole magnets connected with stainless steel vacuum chambers for beam circulation. The vacuum pressure required is in the low 10{sup -10} Torr range. To reach this pressure, the vacuum chambers are baked at 300 C each time they have been opened to atmospheric pressure. The critical problem is to bake the chambers in the magnets at high temperature without overheating the laminated magnets. Some of the magnets are 5 m long with very restrictive space for the heaters and insulation. An average space of only 7.5 mm around the chambers is available. In this space a heating system has been designed and tested to heat the chamber to 300 C and allow a maximum temperature of 65 C next to the magnet components. This was accomplished by using a heating blanket completely covered with water cooled copper heat sink jacket to protect the magnet from the high temperatures. The design of a final selected heating blanket is discussed. A prototype test results are …

There are new requirements emerging in the field of tomography: the need for spatial resolution in the micrometre range, atomic species specificity, and quantitative density discrimination.

"This report covers the two-year period of June 1983 through May 1985, and provides a brief overview of the activities and accomplishments of the Governor's Commission for Women" (p. i).

Monthly report providing tabular statistical information about motor vehicle accidents in rural areas of Texas during 1985, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.

Monthly report providing tabular statistical information about motor vehicle accidents in Texas during 1985, with data broken out by various criteria including number of persons, locations, types of accidents, time of day, and other factors.