sources and beam lines of canadian light source emil hallin canadian light source (material...

Sources and Beam Lines of Canadian Light Source

Emil Hallin

Canadian Light Source

(material organized and presented by D.T. Jiang)

First Phase CLS Beamlines

7 beam lines are funded and approved by the CLS Facility Advisory Committee

• (Facility Diagnostic Line #1: BM, visible light)

• Far IR (BM)• Mid IR Spectromicroscopy (BM)• Soft X-ray Spectromicroscopy (Elliptical

Undulator)• SGM (Undulator)• VLS-PGM (Undulator)• Protein Crystallography (Small Gap in-

vacuum U)• Hard X-ray microXAFS (Wiggler,

Ec=10.7keV)

Main Hall Floor plan

Mezzanine Level

Canadian Light SourceMezzanine Floor Elevation106.00 (+6.000m)

Shielding RoofFloor Elevation103.650 (+3.650m)

Expansion Zone - Beamlines

Lab Reserve

Office Reserve

Offices & Labs

High Resolution Far IR Spectroscopy

• PI: Bob McKellar: Robert.Mckellar@nrc.ca

• Wavelength range: 10-200 m, 0.006-0.13 eV, 50-1000 cm-1

• Resolution: < 0.001 cm-1

• Endstation:

– High resolution Fourier Transform spectrometer

– Sensitive FIR detectors; liquid He cooled

– Gas Phase work:• Coolable long-path cell

• Multi-pass electric discharge cell

• High temperature absorption cell

• Supersonic jet expansion chamber

– High pressure: diamond anvil cell, focusing optics, bench & alignment tools

– Surface & interface studies: UHV chamber, sample preparation and manipulation, 100 m spot size

Mid IR Spectromicroscopy

• Mike Jackson: mike.jackson@nrc.ca

• Wavelength: 1.5-15 m, 0.08-0.8 eV, 700-6000 cm-1

• Spatial resolution: < 5 m

IR Beamlines

First Mirror Concept

02B1.1 Mid IR Schematic

02B1.1 Mid IR Floor Layout

01B1.1 Far IR Schematic

01B1.1 Far IR Floor Layout

Brightness 100 mA

1011

1012

1013

1014

1015

1016

1017

Bri

ghtn

ess

P

hoto

n/s-

0.1%

bw-1

00m

A-m

m2 -sr

1 10 100 1000

Wavelength (micrometer)

BB 1475'K CLS 58 mrad ALS 10 mrad NSLS 40 mrad SRC 15 mrad

Soft X-ray Spectromicroscopy

• PI Adam Hitchcock: aph@mcmaster.ca

• Wavelength: 6-60 Angstrom, 250-1900 eV

• Insertion device: EPU (AppleII, ESRF termination)

• Infinity corrected entrance slitless PGM with vertical dispersion plane

• Optics: grating (SX700 style) & zone plate

• Resolution: 3000 or better

• Endstation: STXM + PEEM

04ID-104B1-1

02B2-1

01B2-1

02B1-1

02B2-2

02ID-102B1-2

03ID-103B1-1

03B2-1

04B2-1

05B1-1

05B2-1

06ID-1

06B1-1

06B2-1

07ID-1

07B1-1

07B2-1

08ID-108B1-1

08B2-109ID-109B1-1

09B2-1

10ID-110B1-1

10B2-1

11ID-111B1-1

12B2-1

11ID-2

05ID-1

/ 07ID-2

/ 08ID-2

/ 09ID-2

/ 10ID-2

/ 06ID-2

/ 05ID-2

12m~22.7m~131 deg

*16.2 (15.0)

177o

177o

5

1.5

6

M1

M2 G(1-3)PGM

6o

STXM3

exit slit

3

3 M4 PEEM

1PEEM

177o

6o

exit slit

1.5M3 STXM

M3 PEEM

EPU

Feature XES

SM Optical Layout

Variable polarization: arbitrary linear 150-2000eV, circular- 100-1000eV

Infinity corrected PGM: STXM at long arm branch (preserved brightness),

PEEM (exchangeable) on short (preserve flux)

Nominal energy resolving power 3000, may be increased till 7000

Intensity on sample: STXM-108ph/s at 40nm, PEEM-1012ph/s in 40

Stable operation even for CLS 2005 e-beam parameters

SM Optical Description

SGM and VLS PGM

• PI T.K. Sham: sham@uwo.ca

• SGM Wavelengths: 200 – 1900 eV

• PGM Wavelengths: 5.5 – 250 eV

• SGM Resolution: 3000

• PGM Resolution: 10000

• Optics: grating monochromator

• Endstations: UHV

• Capabilities: photoemission, XAFS

• Both preliminary design reports are complete

Insertion Devices

•SGM- 44 mm PPM device ~1.2 m long•PGM- 185 mm PPM device ~1.8 m long •1.25 mrad total canting between devices •Preliminary designs for both devices complete

Protein Crystallography

• PI Louis Delbaere: Louis.Delbaere@usask.ca

• Wavelengths: 1.9 – 0.68 Angstrom, 6.5 – 18 keV

• Resolution: 1.6 x 104 using Si(220)

• Typical Crystal size: 20 – 50 m

• Design goal: flux of 1013 photons/sec into a 50 x 100 m area

• Design will be modeled after beamlines at SBC-CAT and SER-CAT (APS). Preliminary design is almost complete.

Protein Crystallography Beamline Layout

(Based on the Design of SER-CAT/APS)

Small Gap Undulator Brilliance

Per =4.5 cm, N=26 (L=1.19m), B0=0.843T, Kmax=3.54

Micro-XAFS

Superconducting Wiggler Parameters:= 0.033 m Magnet Period Length

N = 35.5 Number of PeriodsB = 1.9 T Magnetic FieldK = 5.91 K Parameter

 Front End Aperture: 1 mrad (H) x 0.24 mrad (V) Ray-tracing shows that the XAFS focus is ~1050 horizontal (FWHM) x ~257 vertical (FWHM) in size. The Kirkpatrick-Baez mirror pair reduces this down to ~[14-19]horizontal (FWHM) x [6-9] vertical (FWHM), using bent elliptical cylinders. 

PI De-Tong Jiang: jiang@usask.ca

Wiggler Brilliance

DTJ Note: This is from the first hybrid design concept, total powerSR there would have been 23 kW. Gave up and switched toSuperconducting design. The new design is at least another factorof 2 better yet half the total SR power. Smaller SR horizontal fan ofcourse.

Flux at Sample (Shadow tracing)

Photon Energy (keV)

Photon Flux (photons/second) @ -probe Focus:[14-19]horizontal (FWHM) x [6-9] vertical (FWHM)

5 1.21 x 1013

10 1.94 x 1013

15 1.61 x 1013

20 9.12 x 1012

30 2.36 x 1011

40 1.02 x 107

Micro-XAFS photon flux

-probe photon flux into 5 x 5 spot at focus

1.E+05

1.E+06

1.E+07

1.E+08

1.E+09

1.E+10

1.E+11

1.E+12

1.E+13

0 10000 20000 30000 40000

Photon Energy (eV)

Ph

oto

n F

lux

(p

ho

ton

s/s

ec

on

d)

Summary of CLS BL Status

•First 7 lines scheduled operation time: Jan. 2004 •Preliminary designs for most of the first 7 lines are complete

•Tendering process has been started on beamline and endstationInstrumentation

•Phase I Insertion device preliminary designs are completed

•Front ends conceptual design completed