HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

1KEK

Crab Cavity
Peripheral devices
KEKB Crab Cavity Group- presented by NAKAI Hirotaka

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

2Overview

KEK

Peripheral devices of crab cavities
Vacuum system
RF components
HOM absorber (damper)
Notch filter
Input coupler
Coaxial coupler

Frequency tuner
Cryogenic transfer lines
KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

3

KEK

Vacuum System

KEKB Review Committee/20060321NAKAI Hirotaka

4

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

Vacuum System Schematic

KEK

Crab Cavity Vacuum System
Input Coupler
VaccumSafetyValve

Cryostat
LIquid Helium
JacketHOM
DamperHOM
Damper Bellows

RF Shield
Gate
Valve

Gate
Valve
CavityVacuumSeal-off Valve
Coaxial Coupler
VacuumIon Pump

Ion Pump
Vac. Vessel
VacuunVac. Vessel
Evac. Port

Cold Cathode Gauge
Cold Cathode Gauge
Pirani Gauge (or Convectron Gauge)

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK5Cryostat Vacuum Setup

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEKKEKB Review Committee/20060321

6Vacuum Setup

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK7RF Shield of Beam TubeKEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

8RF Shield of Beam TubeKEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

9KEK

RF Components

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

10Crab Cavity Assembly

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

11Notch Filter & HOM Absorber

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEKKEKB Review Committee/20060321

12

Notch Filter

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEKKEKB Review Committee/20060321

13

HOM Absorber

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEKKEKB Review Committee/20060321

14Input Coupler

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEKKEKB Review Committee/20060321

15

Coaxial Coupler

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

16

KEK

Frequency Tuner

KEKB Review Committee/20060321

NAKAI Hirotaka

17

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

Frequency Tuner Schematic

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HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

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18Frequency Tuner
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NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

19

Inner Structure of Tuner

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK20Copper Bellows for Tuning

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

21Outer Structure of Tuner

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEKKEKB Review Committee/20060321

22

Tuner Test StandNAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

23

KEK

Cryogenic Transfer Lines

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

24Transfer Line Schematic

KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

25Manufacturing Transfer LineKEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK26

Transfer Lines in KEKB tunnel

KEKB Review Committee/20060321

NAKAI Hirotaka

27

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK

D10 Test Stand Schematic
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KEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK28Transfer Lines at D10 Test StandKEKB Review Committee/20060321

NAKAI Hirotaka

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONKEK29

Transfer Lines at D10 Test StandKEKB Review Committee/20060321

NAKAI Hirotaka

30

HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION

Current Status …

KEK

Vacuum system ready for assembly tocryostat
RF components already prepared
Frequency tuner under electricalfunction test
Manufacture of cryogenic transfer lines
for crab cavities in progress

KEKB Review Committee/20060321

NAKAI Hirotaka