| dc.description.abstract | The S-DAM front-end board (S-DAM-FEB) is a photomultiplier readout module for charged particles detection. This board has been designed for the readout of sensors in radiation monitors by the company, Integrated Detector Electronics AS (IDEAS). A large amount of S-DAM-FEB will be used in the neutron detector in the ESS (European Spallation Source) in Sweden for scientific research. Thus, hundreds of these modules are planned to be manufactured by third party of EMS (Electronic Manufacturing Service) and each board has to be validated after production. To be able to validate the DUTs efficiently, it has been decided to create a test system.
In this thesis, the main focus was on the implementation of the test system to validate the functionality of the S-DAM-FEB. The project work included specifying the test requirements, conceptualization of the test system, schematic design and PCB design of needed hardware as well as implementing firmware and software for the test system. The needed Python scripts were created to run the test and log the test results into a test report. The mechanics of the test system was modelled by drawing a 3D-model, and the mechanical components were chosen according to the drawings.
After implementing all the modules to be used for the test system, these modules were assembled together. The S-DAM-FEB was tested using the implemented test system. All functionality of the DUT was tested, including power consumption and temperature as well as gain, threshold and baseline for all channels. Minor fault in the DUT were found by the test, indicating that some failure has occurred during the production process. All the test results were logged into a test report for tracking the modules for future use and determine the condition of DUTs after production.
The test system is in a working condition. Performing the validation test simple and easy. The runtime of the test is decreased, and most of the manual work is replaced by automatized process to get more reliable data and minimize possible human errors. The implementation of the test system was successful, and a large amount of S-DAM-FEB are ready to be validated. | |
