... fast electron current, A, 1.39, 1.37. electron wavelength, a Å, 0.048733, 0.048638. nozzle temperature, K, 273, 274. sample pressure, b mbar, 1.5 × 10 –6, 1.6 × 10 –6. residual gas pressure c , mbar, 9.1 × 10 –8, 1.3 × 10 –7. exposure time, s, 10, 10. used s range, Å –1, 9.5–31.9, 2.9 ...