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Detector name labels
Add label with unique detector name on each camera body
- agreed on unique detector names: 2M.0, 2M.1, 2M.2, ...
- if expected number of detectors more than 10 it is better to use 2M.00, 2M.01, 2M.02, ... (better for files sorting in catalogs).
Why it is important? We need to distinguish detectors in optical metrology and geometry constant files. It does not matter for intensity correction, where detector will be identified by the panels Id from data.
Optical metrology
Use the same measurement pattern for all epix10ka2m detectors
- orientation of all cameras in optical metrology should always be the same
- order of measured points should always be the same
Why? We have to unambiguously map panels in optical metrology and in data from DAQ. Different detector orientation or different order of measurement need in special treatment in the processing script, which is error-prone and always needs in verification.
Camera orientation in optical metrology
Preferred optical metrology pattern from 2018-11-18:
- orientation of camera should be consistent with its beam-view in hatch, quad Q0 in the top left corner.
- orientation of quad labels should be human readable (from left to right) in hatch position;
on current photo labels need to be rotated upside-down. Right photo shows how embarrassing labels look in the hatch. - add labels for vector of gravity or x-y for optical metrology in order to exclude wrong orientation
- microscope origin should stay the same during the measurements.
Origin location does not matter, but it can optionally be labeled somewhere for uniformity of metrology data.
- orientation of quad labels should be human readable (from left to right) in hatch position;
Measurement order
- measurement order of points per quad should be done in style of Chris Kenney, as shown on photo, clock-wise order for panels and corners, beginning from bottom-left.
- metrology data is saved in spreadsheets xlsx or text format.
- units - signed micrometers, without decimal dot.
- example of data:
Label on connectors and cables
- All labels on detector connectors and cables should show THE ONLY WAY to connect camera in hatch.
Summary
- Engrave detector name on camera body.
- Add labels for unambiguous detector orientation:
- vector of gravity,
- x-y (and optional origin) for optical metrology,
- all labels should be left-to-right readable in hatch (now for 2M.0 they are upside-down).
- Use the same detector orientation in optical metrology, Q0 is in upper left corner in microscope x-y Cartesian frame. Origin location does not matter.
- Use the same order of measuring points per quad, as numerated on photo.
- Plug-in properly labeled cables to the properly labeled camera connectors.
Overview
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