KEKB Review 2010
Facility and Infrastructure
KEK; M. Ono
2010-02-16

Contents:(1) Stock Area for Removed and New components;
Magnet/Vacuum components.

(2) New Building of infrastructure and of stock area;
RF/Klystrons will be rearranged within the present galleries.

(3) Improve/Increase ; Cooling Water, Electricity…
Following Discussions depend on the not recent Machine parameters(~June-09). My talk’s results may not be depend on the details ofthe parameters.

(1-1) Area Requirement by Vacuum & Magnet group ; June-09.
Vacuum GroupNew Chamber Stock Area: 1000m2

Crane/ Air Conditioning

TiN Coating Plant: 300m2

Crane/ Air Conditioning

Ion Pump Stock Area: 120m2
Magnet Group
4 Power Supply stations: 150m2 x 4
B-field measurement Lab.: 870m2

Crane/ Air Conditioning

Reuse Mag. Stock area; 1500m2

Crane/ (Air Condition?)/ Partiallyremove from the ring.

New Mag. Stock area: 900m2

Crane/ (Air Condition?)

Abandon Mag. Cable area: 900m2

Total: ~6200m2

(1-2)Stock Area for Removed Vacuum Chamber & Magnets
Radio active of present KEB components are measured at 09-Aug. ~Sep. toclassify the components to tree levels; White(can abandon immediately)/Gray(store at less restricted manner)/ Yellow(store at restricted manner).

Vacuum Chamber : Not reuse but radio activated--> White: Abandon / Gray: Store at tents or out side restricted area withcovered by sheet?/ Yellow: Store at ruin Tunnel (ex. PS/neutrino-line).
(~300m2; pile up stock) 40-50% White, 50-60%Gray, <10%Yellow

Magnet(HER/LER) : Reuse except Long Bend(HER)
Long B; --> Abandon or store; same condition at vacuum chamber.
(~700m2) 341 (144White/189Gray/ 8Yellow)
Reuse(others) --> Store at good condition ; Air conditioning/ Crane…
(~5000m2 ? in total) 70%White, 30%Gray, 2-3%Yellow
Components(BT/DR) : Not yet considered (~500m2??)

(2) New Building for the Ring; 1st requirements; June- 09
Facility

Area (m2)Mag. Power Supply
Station150（10x15）�

4

For additional mag. (--> stockarea at construction)

B field measurementLab.

870（43.5x20）�

1

Measurement/ Stock newmag.

Vac. tube coating Lab.

400（40x10）�

1

TiN coating/ stock newchamber.

Stock area of Gray
radio activate

900

1Ware house? Stock reusemag.?

Compressor Plant forQCS

70（10x7）�

1

Add to present.

Water Plant

450 x2 (two floor

4Cooling water at arc.

building)

Comment

Plant & Station : must build.
Blue(Stock/Lab.) : seek existing area in KEK site; suggestion from upper level person(K).

TiN coating Lab.

Compressor Plant for QCS
4 Power Supply Stations for
Additional Mag.

May change to larger area because ofincreasing of new magnets ; figurereflect initial requirement(June-09).

Ware house for Gray radio activity

Don’t take the layout
seriously; only the sizeof area is important.

B-field measurement Lab.

The layouts are rather
realistic; for assumed
cooling power(June-09).

(2nd floor)

4 Water Plants: Coolingwater for arc section(1st floor)Seek Area
Candidate Area : for Stock and Area of B-field Lab. & of TiN-coating
Lab.; because New buildings are difficult to construct.

(1) East-Exp. Hall (1/3~1000m2) ; converted to cERL area : with Crane(2) North-Exp. Hall (1/3~800m2) ; (素核研 hold rule) : with Crane
素核研：Ins. Particle & Nuclear studies(3) Fuji-B4 (all~1000m2) ; (素核研 hold rule) : with Crane(4) (ruin of)PS-Infra. Plant (1/3~500m2) ; get area with flat floor, but
without Crane; available from FY2010.

Use period : ~4 years? Total Area : 3300m2

Current KEKB use area :(5) Nikko-B4 (~1000m2) ; Occupied by Mag. and SCC group : with Crane(6) Oho (~500m2 x3? ; 3 floor) ; Occupied by Vac. and Mag. Group : (with Crane)(7) 8 Klystron galleries; Occupied by RF /BT/Monitor, no space for others(8) 4 Power Supply Stations; Occupied by Mag., no space for others
Total ~500m2 ??? ; if sum up of small areas.

Consistency between requirement and candidate area :(new buildings for Plants/Stations are not included; -->must build if needed)(areas for not reuse rad. active components are not included; available? in KEKsite)

Requirement :Magnet;B-field Lab. (870m2)
Reuse Mag. Stock (1500m2)
New Mag. Stock (900m2)
Vacuum;New chamber Stock (1000m2)
TiN coating Lab. (300m2)
Ion Pump Stock (120m2)

Candidate :East-Exp. Hall (1000m2)
North-Exp. Hall (800m2)
Fuji-B4 (1000m2)
ruin of PS Plant (500m2)
sum up of small areas (500m2??)

3200m2 / 1500m2 (radio act.) <---> 2000m2 / 1800m2 (radio act.)Comments on Consistency:
3200m2 / 1500m2 (radio act.) <---> 2000m2 / 1800m2 (radio act.)(1) Consistent ; because usually requirements are exaggerated, and precise
estimation can not be expected at this moment.

(2) But, the stock area of reuse magnets(1500) are estimatedbased on the assumptions; only the magnets at the construction areaof the Ring move to the stock area (KEKB ring is major stock area).
(3) Also, candidate areas are really available? ; tough negotiations
are expected between other projects people (cERL/ 素核研, etc) and us.
(4) Construction schedules of the infrastructure (piping of water & floor
preparation at tunnel/ new buildings, etc.) and of the machinecomponents (magnets/chambers, etc.) may affect the present scenario,
greatly; accordance between the two schedule is important.
(5) Damping Ring and BT must be included; not included at this moment,even though the construction of DR will start next FY.

Map of New Building and Seeking Area

New 5 Plants& 4 Stations
Ruin of PS Plant

New 2 Lab.
Ware house(initial plan)
East-Exp HallNorth-Exp Hall

Fuji B4(move)

East Exp. Hall
North Exp.Hall
Fuji B4PS Plant; renewing(for ILC/KEKB/..)(3-1) Improve/Increase ; Cooling Water
First estimations of Cooling Water Plant;(June-09)(1) RF; 24 klystrons for ARES, 8 Klystrons for SCC(2) Magnet & Vacuum; System configuration/
present 4 Cooling water plants are for 4 Straight/Arc sections
new 4 Cooling water plants are for 4 Arc sections

No precise estimations reflecting the recent parameters are carriedout; just twice the present Water Plant for Mag. & Vac.
No significant increasing for RF from the original Water Plant at
TRISTAN; add 2 ARES units at D11(Nikko) in Recent Design.

KEK-Bの高度化

Increase Water Plant

２００９．５．２５

Magnet Cooling Water

Existing Facility

New Facility

Current Plant

New Plant

Flow(l/min) Δｔ(30-52.4)

Flow(l/min) Δｔ(30-52.4)

Tsukuba

3,660

22.4

3,660

22.4

Oho

3,660

22.4

3,660

22.4

Fuji

4,020

22.4

4,020

22.4

Nikko

3,860

22.4

3,860

22.4

North

3,500

22.4

East

3,500

22.4

South

3,500

22.4

West3,500

22.4

Total

15,20029,200Vac. Chamber Cooling Water
Current Plant

Existing FacilityNew Facility

Total

New Plant

Flow(l/min)

Δｔ(15-25)

Flow(l/min)

Δｔ(15-25)

Tsukuba

1,800

10.0

1,800

10.0

Oho

1,800

10.0

1,800

10.0

Fuji

1,800

10.0

1,800

10.0

Nikko

1,800

10.0

1,800

10.0

North

1,700

10.0

East

1,700

10.0

South

1,700

10.0

West

1,700

10.0

7,200

14,000

Add 400 l/min Water
Plant at North Facility
for two ARES units.
Machine design will
decide the water
distribution from newand old plants.

(3-1) Improve/Increase ; Electricity
First estimation of Electricity Consumption;(1) 24 klystrons for ARES, 8 Klystrons for SCC(2) Add 500kW at each New Power supply station;
total 2MW increasing for Magnet.
(3) Add 500kW at new QCS compressor plant.
(4) Add ~1MW at each 4 Plant Facility(old +new);total 4MW increasing for Infrastructure;(~2 --> 3MW at each Facility).
Above assumptions does not reflect the Recentdesign.

Electricity Consumption: June-09
KEKB/KEK total(Design option)

KEKB:MWΔMW

KEK:MW

ΔMW

Present(Average)

45

Nano Beam: June-09

70.7

24.3

96

32

Upgrade: Feb.-09

94.8

49.8

120

56

Super: ‘07-July

102.6

57.6

128

6464

Recent Design(Feb.-10): Add 2 ARES units--> +(3~4)MWSummary/ Comment/(1) Building, Area; (can) build only inevitable houses, effortof seeking area is not avoidable.
(2) Construction schedule of Infrastructures and of Machine
Components should be consistent each other.
(3) Electricity consumption reduced to TRISTAN level;acceptable(?).
(4) Many components are old enough; Cooling Water Plants,
Air Condition Plants, He Refrigerator, Klystron Power
Supply.
(5) Keep “good/ sustainable” relationship with
Administration/ Facility peoples of the KEK; severalveterans will retire(d).