The TDS 40A1 is designed for Temperature Programmed Desorption (TPD) applications, also known as Thermal Desorption Spectroscopy (TDS). TPD involves heating a sample under UHV conditions and simultaneously measuring a number of desorbing gas species as a function of sample temperature. A custom designed conical sampling end piece ensures the best possible response to desorbing species
Mounting flange DN 40CF (non-rotatable)
Bakeout temperature up to 150 °C
Insertion length 190 mm (other on request)
OD: 36.8 mm
Mass range 1 to 300 amu
Mass filter quadrupole
Detector type electron multiplier (EM)
Resolution better than 0.5 amu
Sensitivity 2×10-4 A/Torr (FC), <200 A/Torr (EM)
Minimum detectable 5×10-11 Torr (FC), 5×10-14 Torr (EM)
partial pressure
Working pressure < 10-4 Torr to UHV (FC)
< 10-6 Torr to UHV (EM)
