Survey and Alighment for the ALS Project at LBL Berkeley
Abstract
The Advanced Light Source (ALS), now under construction at Lawrence Berkeley Laboratory, is a synchrotron radiation source of the third generation designed to produce extremely bright photon beams in the UV and soft X-ray regions. Its main accelerator components are a 1-1.9 GeV electron storage ring with 196.8 m circumference and 12 super-periods, a 1.5 GeV booster synchrotron with 75.0 m circumference and 4 super-periods, and a 50 MeV linac, as shown in Fig. 1. The storage ring has particularly tight positioning tolerances for lattice magnets and other components to assure the required operational characteristics. The general survey and alignment concept for the ALS is based on a network of fixed monuments installed in the building floor, to which all component positions are referred. Measurements include electronic distance measurements and separate sightings for horizontal and vertical directions, partially with automated electronic data capture. Most of the data processing is accomplished by running a customized version of PC-GEONET. It provides raw data storage, data reduction, and the calculation of adjusted coordinates, as well as an option for error analysis. PC-GEONET has also been used to establish an observation plan for the monuments and calculate their expected position accuracies, based on approximatemore »
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 878792
- Report Number(s):
- SLAC-PUB-11416
TRN: US0602588
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Conference
- Resource Relation:
- Conference: Presented at 2nd International Workshop on Accelerator Alignment (IWAA 90), Hamburg, Germany, 10-12 Sep 1990
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ACCELERATORS; ADVANCED LIGHT SOURCE; ALIGNMENT; CONSTRUCTION; DATA PROCESSING; ELECTRONS; LINEAR ACCELERATORS; MAGNETS; PHOTON BEAMS; POSITIONING; STORAGE; STORAGE RINGS; SYNCHROTRON RADIATION SOURCES; SYNCHROTRONS; Accelerators,ACCSYS
Citation Formats
Keller, R, Lauritzen, T, /LBL, Berkeley, Friedsam, H, and /SLAC. Survey and Alighment for the ALS Project at LBL Berkeley. United States: N. p., 2005.
Web.
Keller, R, Lauritzen, T, /LBL, Berkeley, Friedsam, H, & /SLAC. Survey and Alighment for the ALS Project at LBL Berkeley. United States.
Keller, R, Lauritzen, T, /LBL, Berkeley, Friedsam, H, and /SLAC. 2005.
"Survey and Alighment for the ALS Project at LBL Berkeley". United States. https://www.osti.gov/servlets/purl/878792.
@article{osti_878792,
title = {Survey and Alighment for the ALS Project at LBL Berkeley},
author = {Keller, R and Lauritzen, T and /LBL, Berkeley and Friedsam, H and /SLAC},
abstractNote = {The Advanced Light Source (ALS), now under construction at Lawrence Berkeley Laboratory, is a synchrotron radiation source of the third generation designed to produce extremely bright photon beams in the UV and soft X-ray regions. Its main accelerator components are a 1-1.9 GeV electron storage ring with 196.8 m circumference and 12 super-periods, a 1.5 GeV booster synchrotron with 75.0 m circumference and 4 super-periods, and a 50 MeV linac, as shown in Fig. 1. The storage ring has particularly tight positioning tolerances for lattice magnets and other components to assure the required operational characteristics. The general survey and alignment concept for the ALS is based on a network of fixed monuments installed in the building floor, to which all component positions are referred. Measurements include electronic distance measurements and separate sightings for horizontal and vertical directions, partially with automated electronic data capture. Most of the data processing is accomplished by running a customized version of PC-GEONET. It provides raw data storage, data reduction, and the calculation of adjusted coordinates, as well as an option for error analysis. PC-GEONET has also been used to establish an observation plan for the monuments and calculate their expected position accuracies, based on approximate coordinates. Additionally, for local survey tasks, the commercial software package ECDS is used. In this paper, the ALS survey and alignment strategy and techniques are presented and critically discussed. First experiences with the alignment of the linac and booster components are described.},
doi = {},
url = {https://www.osti.gov/biblio/878792},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Aug 12 00:00:00 EDT 2005},
month = {Fri Aug 12 00:00:00 EDT 2005}
}