ssrf light source complex zhao zhentang for the ssrf project team shanghai symposium on intermediate...

58
SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001 Introduction Design Overview Accelerator Systems Summary

Upload: jeremy-henry

Post on 16-Dec-2015

235 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

SSRF Light Source Complex

Zhao Zhentang for the SSRF Project Team

Shanghai Symposium on Intermediate Energy Light SourcesShanghai China, September 24-26,2001

Introduction

Design Overview

Accelerator Systems

Summary

Page 2: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Introduction

SSRF: Shanghai Synchrotron Radiation Facility

An intermediate energy 3rd SR light source

A joint proposal of CAS and SMG in 1995

Constructing a third generation SR light source in Shanghai by CAS

SMG’s commitment: one third of estimated budget

Concept Design phase from 1995 to 1998

Approval of the 80M Yuan R&D Program in 1998

Page 3: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Introduction

Two year’s R&D from Jan. 1999 to March 2001

41 accelerator and beamline components

The SSRF technical design

Site selection for the SSRF in 1999

5 candidates in Shanghai

Zhang-Jiang High-Teche Park

Page 4: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Beijing

Shanghai

Page 5: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

The SSRF Site in Shanghai

Page 6: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

SSRF Main Building Layout

Page 7: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

The Design Goals of the SSRF

A state of the art synchrotron radiation light source with high performance and cost-effectiveness

High brightness and high flux X-ray in the energy range from 0.1~40keV

High stable and high reliable as well as high flexible operation

Consideration on future upgrades and development (Top-up injection, Photo-cathode gun to enhance the Linac for FEL…)

Page 8: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

The Main Design Specification of the SSRF

Beam energy: 3.5 GeV

Beam Current: 200 ~ 300 mA

Emittance: ~10 nmrad

Circumference: <400 m

Linac also for driving DUV FEL

Page 9: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

The SSRF Layout

300MeV Electron Linac

A 1Hz full energy booster

A 3.5GeV Storage Ring with 396m in circumference

Beam Lines and experimental stations

Page 10: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

0. 6 300 MeV LinacDUV FEL

3.5 GeV Storage Ring

Beam Lines and Experimental Stations

Booster

Page 11: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Machine Overview

Photon Brightness and Flux

0.01 0.1 1 10 10010

12

1014

1016

1018

1020 Low-emittance mode with =0.01U34

W136

Bend

Normal mode with =0.1

U28 U90

W75

Brig

htne

ss [P

hoto

ns/(s-

mm

2 -mra

d2 -0

.1%

BW

)]

Photon energy (keV)

0.01 0.1 1 10 10010

11

1012

1013

1014

1015

1016

U34

W136Bend

U28

U90

W75

Spe

ctra

l Flu

x [P

hoto

ns/(

s-0.

1%

BW

)]

Photon energy (keV)

Page 12: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

The SSRF Storage Ring

Magnetic Lattice

20 cells DBA structure with 10 of 5m and 10 of 7.24m straight sections.

Each DBA cell containing 2 dipole magnets, 10 quadrupoles and 7 sextupoles

High Flexibility in operation

High x and hybrid x configurations

Dispersion free and finite dispersion modes

Emittance: 4.8~12.1nmrad

Page 13: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Energy (GeV) 3.5Circumference (m) 396Harmonic Number 660Nature Emittance (nmrad) 4.8~12.1Beam Current, Multi-Bunch (mA) Single-Bunch (mA)

200~300>5

Straight Lengths (m) 107.24, 105Betatron tunes, Qx/Qy 18.81/8.77,

22.19/8.23Momentum Compaction 6.910-4

RF Frequency (MHz) 499.654RF Voltage (MV) 4Dipole Radiation per Turn (MeV) 1.256Bunch Length (mm) 4.59Beam Lifetime (hrs) >20

Main Parameters of the SSRF Storage Ring

Page 14: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

0 5 10 15 200

8

16

24

32

x

y

10x

La

ttic

e F

un

ctio

ns

Path Length (m)

Page 15: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

Dynamic Aperture

-50 -40 -30 -20 -10 0 10 20 30 400

8

16

24

32

with errors

Without errors

dp/p=-3% dp/p=0.0 dp/p= 3%

Tracking for 1000 Turns

Y (

mm

)

x (mm)

Dynamic Aperture of the Low Emittance Hybrid x mode

Page 16: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

Orbit Stability Issues (10% of Beam Dimensions)

Temperature control and slow dynamic orbit correction ( 0.2~0.5 0C, 1~2 s )

Fast global orbit feedback including 40 BPMs and 38 correctors

Beam Lifetime and Collective Effects

Beam lifetime >20 hours

Vertical beam feedback for damping the resistive wall induced instability

Page 17: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

The SSRF Injector

300 MeV Electron Linac

Beam energy(MeV) 300Beam pulse length(ns):

Single bunch 1 Multibunch 300

Repetition rate(Hz) 1Current at exit(mA):

Single bunch 1200 Multibunch,(average in macropulse) 180

Energy spread ± 1%Beam emittance(mmmrad) 1.0Accelerating section number 11Klystron number 3Klystron output power(MW) 45Total length(m) 50

Page 18: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

Page 19: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

Full Energy Booster

Injection Energy ( MeV) 300Output Energy (GeV) 3.5Circumference (m) 158.40Natural Emitance (nmrad) 203 (@3.5 GeV)

Single Bunch 0.5Beam Current (mA) Multi Bunch 20Repetition Rate (Hz) 1RF Frequency (MHz) 499.654RF Voltage (MV) 2.0Energy Loss per Turn (MeV) 1.159Super period Number 3FODO Cell Number 24Cell Length (m) 6.600Betatron Tunes 7.253/4.214Synchrotron Tune 0.0219Momentum Compaction 0.02443Bunch Length (cm) 2.46

Page 20: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

BB

QD

QD

QFS

F

SD

6703

6600

150

130

420

360

Pump ST

ZSTX

BPM

BPM

1900

3300

Page 21: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

上海光源加速器装置

Page 22: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Design Overview

Beam Lines in First Phase

1. Macromolecular Crystallography

2. High-Resolution Diffraction and Scattering

3. X-ray Absorption Fine Structure Spectroscopy

4. X-ray Micro-focus and Application

5. Medical Application

6. Soft X-ray Coherent Microscopy

7. LIGA

8. Infrared

Page 23: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Accelerator Systems

Magnet System

40 C-Shape Straight Bending Magnets

200 Colin-Type Quadrupols

140 C-Shape Sextupols

Design and Construction of 3 Prototypes

Magnetic Field Measurement Systems

Page 24: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Bending Magnet (made in IHEP, Beijing)

- 30

- 25

- 20

- 15

- 10

- 5

0

5

- 60 - 50 - 40 - 30 - 20 - 10 0 10 20 30 40 50 60X(mm)

ΔBL/BL(1.E-4)

Page 25: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Quadrupole Magnet Sextupole Magnet

(Made in Kelin, Shanghai) Made in CUSTC, Hefei

Page 26: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Quadrupole Magnet Sextupole Magnet

Harmonic Contents of Integral Field Error

1. 2E-04

1. 0E+00

1. 7E-042. 0E-042. 2E-04

1. 0E-06

1. 0E-05

1. 0E-04

1. 0E-03

1. 0E-02

1. 0E-01

1. 0E+00

1. 0E+01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Harmonic number n

Bn/B

2@R=

30mm

1. 3E-036. 6E-041. 1E-03

1. 0E+00

1. 0E-06

1. 0E-05

1. 0E-04

1. 0E-03

1. 0E-02

1. 0E-01

1. 0E+00

1. 0E+01

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Harmonic number n

Bn/B

3@R=

30mm

Page 27: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Rotating Coil Magnetic Measurement System

Page 28: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Magnetic Field Mapping System

Page 29: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Long Coil Magnetic Measurement System

Page 30: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Accelerator Systems

Magnet Power Supply System

A SCR-Type Bending Magnet Power Supply 850A/900V (500A/100V, 1105/24hrs )

10 Chopper Type Power Supplies for Quadrupoles (360A/385V, 1104/24hrs )

14 Full PWM Bridge Converters with ZVS Mode for Sextupoles (140A/210V, 6104/24hrs )

Design and Construction of the Prototypes

Page 31: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Bending Magnet Power Supply

500A/100V, 1105/24hrs

Page 32: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

0 200 400 600 8009.00310

9.00315

9.00320

9.00325

9.00330

9.00335

DC

CT

Êä³

öµçÑ

¹ £¨

10V

/500

A£©

¼ÆÊý

8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

14

16

18

20Êä³öµçÁ÷450A

ÊÒα仯ÇúÏß

Êä³öµçÁ÷ÇúÏß ÊÒ

ÎÂ £

¨ÉãÊ

϶È

£©

ʱ¼ä £¨4ÔÂ14ÈÕ10:00-15ÈÕ10:00)

Power Supply Stability (450A@ 2oC: < 1x10–5/24hrs)

Page 33: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

储存环六极磁铁电源Sextupole Power Supply

140A/210V, 6104/24hrs

Page 34: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Accelerator Systems

Vacuum System

Machined Antechamber made of Aluminium alloy

RF Shielded Bellows

Horizontal and Vertical Photon Absorbers

Combined TSP and SIP Pumps

A In-Situ Bake Out System

Dynamic Pressure of 1ntorr, Gas Load of 1104torrl/s

Page 35: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

6m Antechamber Section

Page 36: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Photon Absorber

Page 37: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

RF Shielded Bellow

Page 38: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Accelerator Systems

Injection System

An Eddy Current Septum and a DC Septum

4 Ferrite Kickers With Ceramic Chambers

Design and Construction of the Prototypes

An eddy current Septum with its pulser: 60s half-sine-wave, 0.62T peak field with stability of 0.1%, 0.02%stray field on the bump orbit

A kicker magnet with its pulser: 4s half-sine-wave, 0.12T peak field, jitter < 6.5ns

Page 39: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Eddy Current Septum and Its Pulser

60s half-sine-wave 0.62T peak field, stability of 0.1% stray field to main field <0.02%

Page 40: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Kicker Magnet and Its Pulser

4s half-sine-wave 0.12T peak field jitter time < 6.5ns

Page 41: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Accelerator Systems

RF System

Beam Instrumentation

Control and Timing System: (EPICS-Based)

Storage Ring Girder

Electron Gun and Bunchers

Booster magnets and Stainless Steel Chamber

Beam Line Components

Page 42: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Low Level RF Control System

Page 43: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

High Power RF System

500MHz, 150kW CW

Page 44: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

BPM And Its Mapping System

2m resolution

Page 45: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Storage Ring Girder

Page 46: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

100kV Electron Gun

Page 47: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

上海光源加速器装置

Page 48: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Bunchers

RF Power>10MW

Page 49: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Booster Magnets

Page 50: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

ID Front End

Page 51: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Metal Gate Valve and Fast Vacuum Interlock

Page 52: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

CVD BPM at ID Front End

Page 53: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Long Trace Profiler

Page 54: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Double Crystal Monochromator

Page 55: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Water Cooled 4 Blade Slits

Page 56: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Summary

The SSRF specifications have been detailed with completion of the technical design.

The prototypes made under the R&D are qualified for formal construction by minor modification.

Detailed Design and System Integration as well as new technology development

We will start to integrate the existing components into an electron linac from this autumn.

Page 57: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Shanghai Synchrotron Radiation Facility

Page 58: SSRF Light Source Complex Zhao Zhentang for the SSRF Project Team Shanghai Symposium on Intermediate Energy Light Sources Shanghai China, September 24-26,2001

Thank you for your attention !

谢谢!