QS QS B QS QS
QF
SF SD
B QD B
QS QS
QS
QD B
SD
QF
QD QD
QF QS
0 5 10 15 20 25
0 10 20 30 40 50
βx βy 10*ηx
s [m]
0 5 10 15 20 25
0 10 20 30 40 50
βx βy 10*ηx
s [m] βx,y, 10*ηx [m]βx,y, 10*ηx [m]
0 5 10 15 20 25 30
-60 -40 -20 0 20 40 60
dp/p = 0% dp/p = +1% dp/p = –1% dp/p = +2% dp/p = –2%
x [mm]
y [mm]
0 5 10 15 20
0 1 2
20 40 60 80 100 120 140 160
τwithout HCV τwith HC V
RF Bucket Height
RF Voltage [kV]
Ib=200mA(in 12 bunches), XY Coupling=10%
Touschek Lifetime [hr] RF Bucket Height [%]
Present Upgraded
Circumference 53.2 m
Lattice Type DBA extended DBA
Number of Cells 4 4
Straight Sections 3 m ×4 4 m × 4, 1.5 m × 4
Beam Energy 750 MeV
Emittance 165 nm-rad 27.4 nm-rad
Energy Spread 4.2 × 10-4
Betatron Tunes (3.16, 1.44) (3.75, 3.20) Nat. Chromaticity (–3.4, –2.5) (–8.1, –7.3)
XY Coupling ~10%
Mom. Comp. Fac. 0.026 0.028
RF Frequency 90.115 MHz
Harmonic Number 16
RF Voltage 46 kV ~80 kV
RF Bucket Height 0.74 % 1.03 %
Max. Beam Current 250 mA > 250 mA
Beam Lifetime(200mA) ~6 hr > 6 hr
1011 1012 1013 1014 1015 1016 1017 1018
10 100 1000
Photon Energy [eV] Helical U.
(L=2.4m,λu=110mm) Linear U. (L=2m,λu=84mm)
Short Period U. (L=1m,λu=32mm)
Bending
1 3 1
3 5
7 9
Brilliance [photons/sec/mm2/mrad2/0.1%b.w.]
110 mm × 39 mm
SR
B
Kicker 3
Septum Q
Kicker 1 Q
B
B B
QD QF
QF QD
Q
DCCT Q
Helical Optical Klystron
Planar Undulator Short Undulator
Q
Beam Transport
Short Undulator Main Cavity FEL Optical Cavity
Short Undulator
Kicker 2
Multipole Wiggler
750MeV Electron Storage Ring
3rd Harmonic Cavity Transverse Resonance kicker
QD QFSF QD
ZS QS QD QF B
SR
Transver se Resonance kicker
Kicker 2DCCT B QDQF
ZS QD QS
Q Q
SR
SD
B
SD Helical Optical Klystron
Planar Undulator
Beam Transport
Main Cavity
Superconducting 4T Wiggler FEL Optical Cavity
3rd Harmonic Cavity
Kicker 3 ZS
Kicker 1
QF 750MeV
Electron Storage Ring
Septum
0 1 1015 2 1015 3 1015
40 60 80 100 300 500 700
UVSOR Short Period Undulator (L=1m, λu=3.6cm)
ENERGY(eV)
1st
3rd 5th
7th 9th K=1.13(g=20mm)
K=2.5(g=10mm)
K=1.0
BRILLIANCE
