1990 Activity report for 1986-1992

Technical Report · Mon Jan 01 04:00:00 EST 1996

DOI:https://doi.org/10.2172/167181· OSTI ID:167181

Cantwell, K ^[1]

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1. ed.

As discussed in last year`s Activity Report, a fairly complete analysis of SPEAR problems was performed in concert with SLAC, and a major maintenance/improvement process was initiated in the spring of 1989. This run made it apparent that SPEAR will remain a very useful and impressive synchrotron radiation storage ring for at least a decade, given a steady maintenance and improvement program. More details about SPEAR functioning during the run, as well as SPEAR improvements, are contained in Chapter I. The formal SPEAR injector construction project was completed in November, 1990, on-time and on-budget. Although DOE was not able to provide anticipated FY90 commissioning funds, preliminary commissioning was performed and 2.3 GeV injection to SPEAR was demonstrated. A discussion of the Injector project is contained in Chapter II. Commissioning of the injector and the injector/SPEAR complex is continuing in 1991 with Users participating during the May-September period. This user participation allowed normal experimentation, so that systems could be tested critically, but with the commissioning process having higher priority than data acquisition. Another major event in 1990 was the full dedication of SPEAR to the synchrotron radiation program. Previously SPEAR was considered a high energy physics machine that was partially dedicated to synchrotron radiation. The full dedication means that the accelerator can be modified and improved for synchrotron radiation research. Despite the heavy emphasis on completing the Injector, many beam line improvements were achieved, as described in Chapter IV. Among these was the optimization of stations 6-2 and 10-2, the provision of a considerably larger hutch for Station 1-5, which contains the area detector diffractometer, and the introduction of white light capability on 10-2. The provision of good beam during the month of April made an appreciable amount of experimentation possible. These and other runs are described in Chapter VI.

• Research Organization: Stanford Univ., CA (United States). Stanford Synchrotron Radiation Lab.
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-82ER13000
• OSTI ID: 167181
• Report Number(s): DOE/ER/13000--T7; ON: DE96003880
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
ATOMIC PHYSICS
BEAM INJECTION
OPERATION
RESEARCH PROGRAMS
SOLID STATE PHYSICS
SYNCHROTRON RADIATION SOURCES