The next Inside Diamond open day will feature stalls and activities, a short introduction to Diamond and a tour of the machine. We expect the visit will last around two and a half hours. Booking for open days opens 6-8 weeks in advance of the event. Click here for more details.
A very common requirement in Diamond is to combine several components or instruments into a more sophisticated one. Often simple communication between these components is needed in order e.g. to synchronize events, and currently the solution we adopt is to control each element separately. This results in interfaces that are more difficult to use than they should, as well as increased complexity and cost due to the number of cables needed. On top of this, USB connections have mostly replaced the legacy serial ports for remote control, which represents a problem in Diamond due to the cable length limitation of USB.
At I14 we have designed and built a custom microscope for in-line sample inspection. It features a laser for illumination as well as a network-enabled camera to provide images to the sample. The laser can be operated in continuous mode as well as modulated with an external signal, for example to reduce laser-induced damage on the sample. We also have plans to extend the system to carry out spectroscopic measurements on the sample and to use other wavelengths for illumination. The aim of this project is to use a Raspberry Pi to integrate the components of the microscope and provide an interface to control it remotely.
The Pi will abstract the hardware of the system by offering an EPICS interface to the beamline network. Internally the Pi will control the laser, provide the modulation signal, and allow advanced synchronization with the camera through hardware triggers. The project combines aspects of hardware as well as software. It will require the student to install the Pi with a standard Linux distribution, configure it to run securely and reliably on the beamline, compile and install EPICS support on it, and create the necessary Python scripts to provide specific functionality (i.e. controlled signal output for modulation and input/output for synchronization).
Suitable Subjects: Engineering, Computing, Physics, Mathematics
Project duration: 10 weeks
TO APPLY PLEASE FOLLOW THE LINK BELOW
Diamond Light Source is the UK's national synchrotron science facility, located at the Harwell Science and Innovation Campus in Oxfordshire.
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