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	"