The T9 beam line for tests

The T9 beam line for tests

Lau Gatignon, LHCb meeting, 10 March 2014

The T9 beam line 2Lau Gatignon, 10 March 2014

The T9 beam line 3

The East Area(PS)

Lau Gatignon, 10 March 2014

The T9 beam line 4

The East Area Beams (Schematic view - till 2012!)

EASTA

EASTB

EASTC

DIRAC

CLOUD

IRRAD

T7 beam (not used)

T9 beam12 (15) GeV/c

T10 beam 6 GeV/c, 60 mr T11: 3.6 GeV/c, 150 mrad

N-target

S-ta

rget


The T9 beam line 5

The East Area Beams (Schematic view – From 2014!)

EASTA

EASTBIRRAD

CLOUD

T9 beam12 (15) GeV/c

T10 beam 6 GeV/c, 60 mr T11: 3.6 GeV/c, 150 mrad

N-target



EXAMPLE OF A PS SUPER-CYCLE

Or e.g. :(part of s.c.) The super-cycle can now be

re-programmed ‘on the fly’


SOME TYPICAL PS CYCLES

User Momentum Flat top Intensity Duration Comments

SFTPRO 14 GeV/c – Up to 3 1013 1.2 s Need 2 to fill SPS *)

CNGS 14 GeV/c – Up to 3 1013 1.2 s Need 2 to fill SPS *)

LHC 26 GeV/c – 1.4 1011/bunch 1.2 s

EASTA 24 GeV/c 0.4 s 2-3 1011 2.4 s For T9+T10 tests + CLOUDEASTB 24 GeV/c 0.4 s 1.2 1011 2.4 s For new IRRAD facility

EASTC 24 GeV/c 0.4 s Up to 5 1011 2.4 s No longer needed

TOF 20 GeV/c – 8 1012 1.2 s

AD – 1.5 1013 1.2 s Only once per ~90 seconds

MD Variable parameters

The T9 beam line 8

The supercycles proposed for 2014+





East Area Test Beams

The T9 and T10 beam lines are mixed beams.Their maximum flux is 106 per EASTA cycle.Both beams are served from a common target,together also with the T11 beam for CLOUD.The flat top is 0.4 seconds.The number of EASTA cycles is defined by the physics coordinator, depending on the overall schedule, but is normally 2 per super-cycle. When CLOUD runs up to 3.

Each beam line is equipped with 1 (T10) or 2 (T9)threshold Cerenkov counters, a scintillator anda Delay wire chamber.

Parameter T9 T10

Maximum momentum (GeV/c) 12 6

Production angle (mrad) 0 61.6

Beam length to ref. focus (m) 55.8 34.9

Beam height above floor (m) 2.50 2.505

Ang.acceptance Horiz (mrad) Vertic (mrad)

±4.8±5.8

±5.4±13.9

Acc. Solid angle (msterad) 87 224

Theor. momentum resol. (%) 0.24 0.24

Max. momentum band (%) ±10 ±8

Magnification at ref. focus 1.0, 1.2 0.8, 0.6

Protons on North target ~2.5 1011

Max. flux (depending on p, Q) 106 106



Beam rates

p

p

For wide open collimators, i.e. Dp/p ≈ ±7.5%


Beam Composition

With electron enriched target (otherwise e± strongly reduced)

p

p






Monitoring the beam



A Delay WireChamber.

The upstream support houses a 10 cm ∅scintillator


The T9 beam line 23Lau Gatignon, 10 March 2014Threshold Cerenkov counter




Required preparation steps

• Contact me in time with all questions. Organise a visit in T9.We will then also fix details of the layout of your installation.

• All participants must have a dosimeter and the basic safety training• Submit ISIEC form• Let us know if you need X/Y tables. They need to be booked.• Contact us if you need gas and also your FGSO if you need flammable gas• Take appointment (well before run) for patrol right training,

2-3 persons will be authorised• When your installation is ready contact B.Pichler for a safety visit• Organise a beam training for the team at the start of your beam time• Look at the East Area web page where you will find lots of useful details:

http://gatignon.web.cern.ch/gatignon/EastArea



Documents

The T9 beam line for tests