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A system for UHV temperature programmed desorption studies
- Partner:UK Atomic Energy Authority
- Facility:Materials Research Facility (MRF)
Or call us now on 0161 275 8382
Detailed Description
The Thermal Desorption Spectroscopy workstation at UKAEA-MRF consists of a ultra-high vacuum furnace setup coupled to a high-accuracy mass spectroscopy system. This allows for studies of the rate of desorption of gases contained in a sample. The system at UKAEA-MRF has been extensively used for exhaustive Deuterium and Tritium retention studies of samples from the first wall of the Joint European Torus fusion reactor at Culham. Furthermore, the Thermal Desorption Spectroscopy setup has been successfully used for H isotopes and He retention and permeation study, in both the study of H diffusivity related to corrosion of materials and on coatings for fission applications.
Uses/Applications
The system at UKAEA-MRF has been extensively used for exhaustive Deuterium and Tritium retention studies of samples from the first wall of the Joint European Torus fusion reactor at Culham. Furthermore, the Thermal Desorption Spectroscopy setup has been successfully used for H isotopes and He retention and permeation study, in both the study of H diffusivity related to corrosion of materials and on coatings for fission applications.
Hiden Analytical Ltd - TPD Workstation type 640100
Hiden Analytical HAL/3F RC 1051-9 PIC mass spectrometer
Burle 4871H channeltron electron multiplier mounted at line-of-sight orientation
The system is tuned to allow mass separation of the He and D2
Mass scans in the range 1-50 amu
Values can be individually optimised for each selected mass
Maximum sample size: 10x10x3 mm
Heating from room temperature to 1000°C
Heater temperatures fully programmed for ramp rates, hold patterns etc
A linear ramp rate 1-20K/min
Surface temperature measured using a thermocouple and a pyrometer (RAYTEK model RAYMM2MLSF1L) turbo-pump backed by a dry pump UHV ~10-9 mbar