. "APPENDIX C REPRESENTATIVE SYNCHROTRON RADIATION SOURCES." Free Electron Lasers and Other Advanced Sources of Light: Scientific Research Opportunities. Washington, DC: The National Academies Press, 1994.
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FREE ELECTRON LASERS AND OTHER ADVANCED SOURCES OF LIGHT: Scientific Research Opportunities
APPENDIX C
REPRESENTATIVE SYNCHROTRON RADIATION SOURCES
Note that data are presented for 0.1% bandwidth from the source. Realizing this level of resolution at the experiment would generally require an optical system (monochromators, filters, etc.) that would reduce the power at the sample by a factor of ten or more.
Lawrence Berkeley Laboratory, Advanced Light Source (ALS)
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FREE ELECTRON LASERS AND OTHER ADVANCED SOURCES OF LIGHT: Scientific Research Opportunities
APPENDIX C
REPRESENTATIVE SYNCHROTRON RADIATION SOURCES
Note that data are presented for 0.1% bandwidth from the source. Realizing this level of resolution at the experiment would generally require an optical system (monochromators, filters, etc.) that would reduce the power at the sample by a factor of ten or more.
Lawrence Berkeley Laboratory, Advanced Light Source (ALS)
Reference
LBL PUB-643 rev. 2, 1989 “An ALS Handbook”
Energy
1.5 GeV Electron beam
Current
400 mA Average 1.6 mA per bunch
Timing Characteristics
RF system is 500 MHz tµ = 35 ps
328 RF buckets/turn, 250 nominally filled τµ = 2 ns - 0.66 µs
Emittance Characteristics
εh = 10 nm-rad εv = 1 nm-rad
Source:
U5 undulator
Argonne National Laboratory, Advanced Photon Source (APS)
Reference
ANL-88-9, 1988 “Characteristics of the 7-GeV APS”
ANL/APS/TB-3, 1993 “Undulator A Char. & Specs.”
Energy
7 GeV Positron beam
Current
100 mA Average 5 mA per bunch
Timing Characteristics
RF system is 352.96 MHz tµ = 119 ps
1248 RF buckets/turn, 1-60 nominally filled τµ = 2.8 ns - 3.54 µs
Emittance Characteristics
εh = 7 nm-rad εv = 0.7 nm-rad
Source:
UA undulator
Note: Material for this appendix was supplied courtesy of Erik Johnson, Brookhaven National Laboratory.
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FREE ELECTRON LASERS AND OTHER ADVANCED SOURCES OF LIGHT: Scientific Research Opportunities
Brookhaven National Laboratory, National Synchrotron Light Source (NSLS)
VUV Ring
Reference
BNL-47034, 1991 “Flux and Brightness Calculations for Various Synchrotron Radiation Sources”
Energy
0.75 GeV Electron beam
Current
800 mA Average 114.3 mA per bunch
Timing Characteristics
RF system is 52.88 MHz tµ = 588 ps
9 RF buckets/turn, 1-7 nominally filled τµ = 18.9 −170.2 ns
Emittance Characteristics
εh = 138 nm-rad εv = 4 nm-rad
Source:
UV bending magnet; U5 undulator; U 13/UA undulator
Brookhaven National Laboratory, National Synchrotron Light Source (NSLS)
X-ray Ring
Reference
BNL-47034, 1991 “Flux and Brightness Calculations for Various Synchrotron Radiation Sources”
Energy
2.5 GeV Electron beam
Current
250 mA Average 10 mA per bunch
Timing Characteristics
RF system is 52.88 MHz tµ = 588 ps
30 RF buckets/turn, 1-25 nominally filled τµ = 18.9 − 567 ns
Emittance Characteristics
εh = 138 nm-rad εv = 4 nm-rad
Source:
X-ray bending magnet; X21/25 wigglers; X1 undulator;
X17 superconducting wiggler
