Temporary warm line for sector test

Temporary warm line for sector test / V. Mertens / LHC-TCC / 21. 9. 2001

Temporary warm line for sector test

Volker Mertens, LHC-TCC, 21. 9. 2001

Outline:

Situation

Assumptions / constraints

Status of injection elements (MSI, MKI, TDI/TCDD)

Temporary optics

Magnets

Other components + services

Planning

Summary

Thanks to:S. AkhtarP. BonnalP. BurlaI. CollinsL. DucimetièreC. FischerR. GenandJ. C. GuillaumeC. HauvillerJ. M. JimenezG. KoubaJ. Kühnl-KinelD. LacarrèreM. MeddahiG. PeonB. PirolletP. ProudlockM. SassowskyK. SchirmD. SmekensR. TrantR. ValbuenaR. VenessA. VerdierE. Weisse...


Situation

IP8

UX85 centre

~ 215 m to substitute

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150

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480 530 580 630 680 730 780

-0.5

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1.5

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2.5

x y Dx


Assumptions / constraints

• Substitute definitive LHC part between MSIs and triplet left of IP8

• Install definitive injection elements(MSI, MKI, TDI/TCDD - as far as available)

• Reproduce basic geometry and optics around MSI - MKI - TDI to set up + test injection under real conditions

• Match to TI 8 and 8-7 arc optics

• Do not require triplet powering

• Install definitive vacuum elements and instrumentation (where reasonable + available)

• Use elements foreseen for TI 2 (+ SPS spares) to fill the holes(magnets, vacuum, instrumentation, p.

converters)

• Find (keep) space in UA87 (+ UA83 ?) to locate power converters

• Pull short cables (e.g. through holes between UA87 and RA87)

• LHCb magnet in place, remainder of UX85 covered by solid platform

• Avoid unnecessary costs


Injection septa (MSIA/B)

MSIB pre-series magnet at CERN

IHEP / Protvino

• 2/3 of series produced


MSIA/B status (vacuum chambers + interconnects)

side view

J. M. Fraigne / EST


Injection kicker (MKI) layout

UA87

RA87 MKIs

MKI

PFNs

PFN

Beam

J. Grieger / EST


MKI prototype magnet

mounting of matching capacitors

magnet inside LEP separator tank


MKI prototype magnet

• prototype assembly + tests 10/01• series construction 12/02• series tests 04/03• finished 10/03


Injection stopper (TDI) design

absorber

beam view

• design ~12/01• finished ~06/03

side views

V. Maire / EST


D1 shielding (TCDD) early design

beam viewside view

V. Maire / EST

• design ~06/02• finished ~09/03


Overall substitution scenario (+ VAC + BI details)

IP8

UX85 centre

~ 215 m to substitute

definitive BI equip’t

temporary BI equip’t

BPM

BTV (OTR)

BLM

definitive VAC chambers

temporary VAC chambers


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100

150

200

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-0.5

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Insertion optics for sector test

A. Verdier / SL

V 6.2

x y Dx

TI 8 >D.S. IP8


Temporary magnets

IP8

UX85 centre

MQI

B280

QTL


UA87 cross sections (normal injection elements)

MKI

MSI


UA87 cross sections (temporary elements)

QTL B280

No obvious problems, but this does not replace a detailed integration study MIWG / ICL


Area around RA87 / UA87 (principle)

UA87

RA87 MKIPFN

details (placement of converters + cabling paths) to be studied PIWG

CDD LHCEY___8004 source: J. C. Guillaume / ST

MSI

transformer + switchboard

power converters ?


Area around UX85 (principle)

power converters ?

only LHCb magnet in place


UX85 with LHCb magnet and “half” platform

R. Valbuena + D. Parchet / EST

principle shown; details to be checked: e.g.

behaviour of platform under emergency breaking with load

maquette KR082007PL


UX85 with LHCb magnet and “half” platform

principle shown, details to be worked out, e.g. vacuum supports, in part. at magnet crossing R. Valbuena + D. Parchet / EST


Connectivity to triplet on left side of IP8

source: R. Veness / LHC

preliminary

sector 8-7 >

< IP8

detailed hand-over point to be agreed as function of availability of components

maquette BP502066PL


Some more info on equipment (prelim.) + open points

Vacuum:• Install definitive part for and around MSI - MKI - TDI/TCDD.• Fill up straight sections with TI 2 material (60/63 mm) (check for supports).• Increase pumping to 1 VPIA / ~ 15 m (TI 8: 1 VPIA / ~ 60 m).• Put 1 - 2 400 l pumps before entry of cold section.• Put temporary power supplies + controls in UA87.• Part bridging LHCb magnet only to be put up shortly before the sector test.

Power converters / AC supply / cabling:• Baseline assumption: install converters in UA87 (+ UA83 ?) (SR8 pretty full)• Clarify rating + availability of transformer + switchboard (ERD1/87).

Cooling:• Baseline assumption: draw from the available pipeline, using flexible hoses.• Clarify availability of IP8 water station (normally ok by that time).

This is the starting point … detailed layouts to be studied ...


Overall planning: 20042003 2004

LHC side

SPS side

sector 8-7

TI 8

installation of warm line

dismantling of warm line


model A: 22 t

Further provisions for sector test: temporary beam dump

• have temporary beam dump at end of arc• choose model / dump performance according integrated + instantaneous

intensities (to be specified)• mind INB regulations: containment, zoning, intensities logging, ...

model B: 2 t


Summary

Substitute for sector test LHC part between MSIs and triplet left of IP8.

Baseline assumptions:• Install definitive injection elements (MSI, MKI, TDI/TCDD with their associated

vacuum + instrumentation; certain surrogates are possible).

• Reproduce basic geometry and optics around MSI - MKI - TDI to set up + test definitive injection choice of elements.

• Holes mainly to be filled up “à la TI 8” (material mainly to be “borrowed” from TI 2) (magnets, vacuum, instrumentation).

• Candidates for active components found (magnets, power converters).

• Many details need still to be worked out (proper integration study, exact location of power converters, cabling paths, location of controls equipment, pumping scheme, BI + vacuum integration, vacuum across LHCb magnet, …).

• Specify performance of temporary beam dump at the end of the arc (INB !).

• Planning should not pose particular problems (once TI 8 is (success)fully installed).

Documents

Temporary warm line for sector test