COMPACT PLUGPLAY MONITORS FOR PRECISE LOW TEMPERATURE MEASUREMENTS

摘要

During the last years, temperature monitors from Lake Shore are mostly known in many cryogenicrnlaboratories and organizations. For example the “LS 218” monitor is the main instrument for the FAIRrnSIS100 magnet prototype testing at the GSI in Darmstadt. The demands for the SIS100 accelerator systemrninclude immunity against harsh electromagnetic radiation and low radiation dose for long life time. Usuallyrninstrumentation modules for low temperatures regimes are very expensive and require high skill specialistsrnfor implementation of calibration curves for temperature sensors.rnFor satellite helium refrigerators the ILK developed reliable instrumentation modules for low temperaturernmeasurements with cold multiplexers. Based on these instruments a new temperature monitor has beenrndesigned which fulfils the GSI specifications.rnBeside this, the universal “plug & play“ temperature monitor from ILK brings new features like: SD card forrnreading of calibration curves and recording of data, long time offline battery operation, efficient suppressingrnof electromagnetic noise and high channel count with optional cold multiplexer.rnFirst metrology comparison tests of both LS 218 and monitors of ILK, performed by the GSI, showed arnbetter performance of the ILK design. Specialists at the GSI are testing and evaluating the ILK units for thernopen market. This new developed ILK temperature monitors, their test results and specifications will bernpresented and discussed in this paper.