Transcript Storage Ring (SR1) - Canadian Light Source

Canadian Light Source
Commissioning Progress
CLS Annual Users Meeting – 2003-11-15
Facility Layout
2003 November 15
2
Booster Commissioning
• Blue: Dipole Field
• Yellow: PCT average current – 8 mA
• Green: FCTpeak current – 40 mA injected, 20 mA
extracted
2003 November 15
3
CLS Storage Ring
• 2.9 GeV DBA lattice with 12-fold period
• 170.88 m circumference
• Nominal Tune:
x = 10.22
y = 3.26
• Eloss per turn: > 0.876 MeV
• Bend magnet radiation:
c = 1.6 Å
Ec = 7.6 keV
• x (natural damped) = 18.1 nm•rad
• Damping times:
• x = 2.4 ms, y = 3.8 ms, E = 2.7 ms
• ~10 mm bunch length
2003 November 15
4
Typical Storage Ring Sector
TO
GHT
N LI TIONS
O
R
TA
OT
AL S
C HR
SYN RIMENT
E
EXP
ON
CTR
ELE AM
E
B
PLAN VIEW
(1 of 12 CELLS)
0
0.5
1 meter
SCALE
2003 November 15
5
Split Sector Magnets
2003 November 15
6
Sector Vacuum Chamber
2003 November 15
7
Vacuum Bake-out
2003 November 15
8
Superconducting RF Cavity
2003 November 15
9
Storage Ring Injection & RF
2003 November 15
10
Storage Ring Sector
2003 November 15
11
Storage Ring
2003 November 15
12
Storage Ring Straight
2003 November 15
13
Commissioning Plan
• 4-week Runs: 2 installation + 2 run
– Started 2003 September
– Initial sequence:
• First turn
• Stored beam
• Stacked beam
• Vacuum conditioning
• Radiation survey for licensing
– Goal:
• 100 mA
• > 6 hour lifetime
• Good reliability and stability
2003 November 15
14
Storage Ring Commissioning – Run 1
• Yellow: Storage Ring current at injection septum
Measured on 2003-09-26
2003 November 15
15
Storage Ring Commissioning – Run 2
• Green: Storage ring current
2003 November 15
Measured 2003-10-25
16
Storage Ring Commissioning – Run 3
• Green: Booster beam
• Pink: SR1 beam loss measured by CBLM
2003 November 15
Measured 2003-11-14
17
Plan for 2004
• Q1:
– SGM/PGM front-ends, POE and IDs
– Optical chicanes for IR lines
– Start of day-time operation
• Q2:
– SM and PX front-ends, POEs and IDs
– XAFS front-end and POE
• Q3:
– XAFS wiggler
– Tentative start of 24-hour operation
• Q4:
– Increase current to 200 mA and lifetime to ~10 h
2003 November 15
18
Future Projects
•
•
•
•
Modifications for top-up operation
Fast transverse feedback
Linac modifications/upgrade
Come to Sunday session to discuss other
long range possibilities
2003 November 15
19