Machines and apparatus for testing and measuring

Tender description

UKAEA wishes to procure a physical property measurement system (PPMS) offering a wide range of magnetic, thermal and electrical measurements. It has the following minimum requirements: — ‘cryogen free’, i.e. operated with a cryocooler, — sample environment controls including fields up to ±14 tesla, — variable temperature insert (VTI) with a calibrated Cernox resistive temperature sensor or direct equivalent, provided with a calibration from 1,4 K to room temperature, — measurement temperature range at least between 2 and 300 K, — time to sweep to 90 % of full field less than 10 min, with a thermal load on the insert, — field homogeneity ±0.01 % over 3 cm on axis, — capable of performing the following measurements: —— heat capacity, —— DC magnetic moment (magnetometry), —— AC susceptibility, —— DC and AC electrical properties. — a sample rotator to perform a measurement with the field at different angles. UKAEA wishes to procure a physical property measurement system (PPMS) offering a wide range of magnetic, thermal and electrical measurements. It has the following minimum requirements: — ‘cryogen free’, i.e. operated with a cryocooler, — sample environment controls including fields up to ±14 tesla, — variable temperature insert (VTI) with a calibrated Cernox resistive temperature sensor or direct equivalent, provided with a calibration from 1,4 K to room temperature, — measurement temperature range at least between 2 and 300 K, — time to sweep to 90 % of full field less than 10 min, with a thermal load on the insert, — field homogeneity ±0.01 % over 3 cm on axis, — capable of performing the following measurements: —— heat capacity, —— DCmagnetic moment (magnetometry), —— AC susceptibility, —— DC and AC electrical properties. — a sample rotator to perform a measurement with the field at different angles.