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U.S. Department of Energy
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The Shape of the Target Mark for Measurements in Desy; DIE FORM DER ZIELMARKEN FUR DIE VERMESSUNGSARBEITEN BEI DESY

Technical Report ·
OSTI ID:4212318
The measurements in DESY at gaps and lines of sight between 2.5 and 50 m should be guaranteed positional accuracy up to plus or minus 0.1 mm. A principle problem in the attainment of this tolerance is the accurate centering of the theodolite, the target mark and the index line for invarband measurements. The target marks investigated, the experimental set-up, and the results obtained for DESY are reported. (J.S.R.)
Research Organization:
Deutsches Elektronen-Synchrotron, Hamburg
NSA Number:
NSA-13-022520
OSTI ID:
4212318
Report Number(s):
DESY-A2.49
Country of Publication:
Germany
Language:
English