To detect conditions and to forestall events in which an electron or positron beam might otherwise melt a hole in its SLC arc vacuum chamber, and to provide information on the magnitude and location of these and other, less harmful, beam losses, it is planned to install two PLIC cables along each arc, one on each side of the magnet string. A similar system (but with one long ion chamber) has been in use at SLAC for 20 years. Electromagnetic shower calculations have been made to estimate the ion chamber signals which will be produced in the new system, making use of data from the old system. It is estimated that a potentially damaging beam loss in an SLC arc will give rise to an ion chamber signal pulse with an amplitude on the order of 2 to 5 volts. Depending upon the location of a beam loss, sensitivity may vary from its average value by as much as 40%. Most of this signal is due to charged particles in the electromagnetic shower that are able to escape the magnetic field and reach PLIC.

Effects of Linac transverse wakefields are combined with residual eta and partially compressed bunches (presently the SLC design) to place much tighter, current dependent limits on residual eta and eta'. The limits are comparable to or exceed those needed at the SLC final focus. These limits will be difficult to maintain due to present experimental resolution.

Weekly report of the Texas Crop and Livestock Reporting Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending March 8 to the week ending April 12, during 1985 and 1986 broiler eggs set, chicks hatched, and chicks placed.

Weekly report of the Texas Crop and Livestock Reporting Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending June 7 to the week ending July 12, during 1985 and 1986 for broiler eggs set, chicks hatched, and chicks placed.

This report discusses the progress made on laser particle acceleration. First a brief discussion of the collaboration with the University of California at Santa Barbara to examine the technical trade-offs involved in the choice of an inverse Cerenkov (IC) demonstration experiment. The goals of the IC demonstration experiment are to show the applicability of the IC mechanism to electron beam focusing and acceleration. The second part of this report covers glancing incidence measurements of mirrors. The work being performed centers around the issue of dielectric overcoats on metal mirrors. In any type of laser particle accelerator careful consideration of the timing, phasing, and alignment between laser and particle beams must be incorporated in a complete system study. Analysis of these problems has been initiated and a survey of preliminary results are covered in the last part of this report. During this year, Spectra Technology Inc. (STI) has collaborated with Prof. Jorge Fontana, of the University of California, Santa Barbara (UCSB), to examine the technical trade-offs involved in the choice of an inverse Cerenkov (IC) demonstration experiment. Prof. Fontana`s responsibilities have been to address the rationale and requirements for the demonstration experiment, including an evaluation and selection of the most attractive …

A summary report of Eugene School District's Getty Planning Grant Project prepared for the National Invitational Conference, "Discipline-Based Art Education - What Forms Will It Take?"