Engineering topics

Karl, Francis

Publications and source records attributed to Karl, Francis.

3 records

DOE OSTI2018

Non-contact Mirror Measurements by a Laser Tracker

In my previous experience, beam line optics measurement is directly or semi-directly done by moving SMR along its surface. The fact there is that the touchable part is not critical to the mirror’s future use. But now for NSLSII project, we have to deal with the no-touch-at- all-to-the-surface situation. The following is a general idea of how to measure a mirror without contact its precision surface, further test need to be done to verify it.

36 MATERIALS SCIENCE↗

DOE OSTI2013

Survey and Alignment Reference Data Generation and Deviation Reporting

The data used by survey group can be categorized into design data and measured data based on how it’s obtained. Design data is a simple term which refers to the ideal beam orbit which is given by physics group in the form of a series of coordinates in lattice frame. Comparatively, measured data is a complicated term which includes the fiducialization data of each component, girder integration data, girder profiling data and control network data etc. There are a lot of steps and techniques to make sure a precise and successful alignment. However, from pure data perspective, making up right reference data and reporting misalignment correctly are 2 keys of survey and alignment. The note will give an overview regarding how survey data will be generated and reported during key steps. More details should be checked in the referred documents or discussed specifically.

36 MATERIALS SCIENCE↗

DOE OSTI2013

Non-contact Mirror Measurement by a Laser Tracker

In my previous experience, beam line optics measurement is directly or semi-directly done by moving SMR along its surface. The fact there is that the touchable part is not critical to the mirror’s future use. But now for NSLSII project, we have to deal with the no-touch-at-all-to-the-surface situation. The following is a general idea of how to measure a mirror without contact its precision surface, further test need to be done to verify it.

36 MATERIALS SCIENCE↗