Reference_Lines@2.4GeV
Photoemission at 2.4 GeV, 150 mA in ring.
Guideline values for typical organic samples. Optimise the gap about once a week.
Grating |
Slits (micron) |
Gap | Photon energy (eV) | Kinetic energy (eV) | Step (eV) | Pass Energy | Typical photodiode current, microamp | Calibration (eV) | |
VB | G3 | 50/200 | 65.7 | 100 |
60-97, 80-98 |
0.1 or 0.05 |
5 | 120 | see Reference_line@2 GeV |
C 1s | G4 | 30/50 | 71.45 | 382 | 86-97 | 0.05 | 10 | " | |
N 1s | G5 | 30/50 | 78.9 | 495 | 88-95 | 0.05 | 10 | " | |
O 1s | G5 | 30/50 | 86.8 | 628 | 90-96 | 0.1 | 10 | " |
NEXAFS at 2.4 GeV, 310 mA in ring
Grating | Slits (micron) | Gap (mm) | Photon energy (eV) | Step (eV) | Comment | Typical lifetime widths of core holes. | Calibration (eV) | |
C 1s | G4 |
20/20 20/30 |
64.4 65.0 65.4 |
282-295 ( Hm@287) 292-300 (Hm@297) 295-315 |
0.025 0.050 0.1 |
Slit size depends on signal level. If vibrational structure is expected, 10/10 may also be used. |
80 meV | see Reference_line@2 GeV |
N 1s | G5 | 20/20 | 73.2 | 396-410 | 0.05 | 120 meV | " | |
O 1s | G5 |
20/20 30/50 |
81.5 81.8 |
525-542 534-547 |
0.05 0.10 |
150 meV | " |
Last Updated on Thursday, 06 December 2018 11:55