SM Beamline Techical Information
| Energy range |
130 – 2500 eV |
| Source |
Apple II Elliptically Polarizing Undulator, 75 mm period, 1.6 m long |
| Polarization |
Linear inclined polarization (-90° to +90°) from 130 – 2500 eV; Circular right & left polarizations from 130 – 1000 eV; Elliptical polarizations from 1000 – 2500 eV. |
| Monochromator |
Entrance slit-less Plane Grating Monochromator |
| Endstations |
STXM, X-PEEM |
| Spectral resolving power (E/∆E) |
Normal operation = 3000; can reach > 10,000 |
| STXM |
108 ph/s in 50 nm spot, spatial resolution = 30 nm |
| X-PEEM |
1012 ph/s in 50 µm spot, spatial resolution = 50 nm |
SM beamline optics and gratings specifications
|
Mirror |
Type |
Substrate |
Coating |
|
M1 |
Cylindrical |
Brazed glidcop |
Au |
|
M2 |
Planar |
Brazed glidcop |
Pt |
|
M3PEEM |
Toroidal |
Silicon |
Au |
|
M3STXM |
Toroidal |
Silicon |
Au |
|
M4PEEM |
Ellipsoidal |
Silicon |
No coating |
|
Grating |
Energy range
(eV) |
Line spacing (l/mm) |
Substrate |
Coating |
|
LowEnergyGrating (LEG) |
130–400 |
250 |
Glidcop |
No coating |
|
MediumEnergyGrating (MEG) |
400–1500 |
500 |
Glidcop |
Au |
|
HighEnergyGrating (HEG) |
1500–2500 |
1250 |
Glidcop |
Au |
SM Beamline Related Articles:
- K.V. Kaznacheyev, I. Blomqvist, E. Hallin, S. Urquhart, D. Loken, T. Tylisczak, T. Warwick and A.P. Hitchcock, Principles of optical design of the SM beamline at the CLS, A.I.P. Conf. Proc. 705 (2004) 1303-1307.
- K.V. Kaznacheyev, Ch. Karunakaran, F. He, M. Sigrist, T. Summers, M. Obst and A.P. Hitchcock, CLS ID-10 Chicane Configuration: From "Simple Sharing" to Extended Performance with High Speed Polarization Switching, Nucl. Inst. Meth. A582 (2007) 103-106
- K.V. Kaznatcheev, Ch. Karunakaran, U.D. Lanke, S.G. Urquhart, M. Obst and A.P. Hitchcock, Soft X-ray Spectromicroscopy Beamline at the CLS: commissioning results, Nucl. Inst. Meth. A582 (2007) 96-99
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