Protvino as a site for ILC detector test

Protvino as a site for ILC detector test beams Alexander Kozelov IHEP , Protvino, Russia Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 1

Outline 1. ILC requirements 2. IHEP accelerator parameters 3. General layout of beams 4. Proposed test beam zones 5. General questions 6. Conclusion Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 2

ILC requirements 1. Calorimetric response for individual particles ( to test options and tune the simulation ) - beams: h, e, - momentum range: (1 - 50) Ge. V/c - different incident angles - statistics: 106 per point, ~102 points 2. JET separation (to test/tune energy flow reconstruction) - different combinations of e, h, , with open angles 6 mrad Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 3

IHEP accelerator 70 Ge. V accelerator complex for protons = Exp hall – 1 BV Exp gallery Main ring Linac - URAL-30, 30 Me. V + Booster – 1. 5 Ge. V + Main ring – 70 Ge. V proton synchrotron Works two times per year March-April Nov-Dec For each run 1 month for physics Jan 17, 2007 Linac+Booster A. Kozelov - IDTB 07 Workshop at Fermilab 4

IHEP accelerator parameters - cycle time - 10 s - spill time - 1. 8 s -intensity ~ 1 1013 p/cycle -number of bunches - 30 - RF structure: bunch length – 40 ns, bunch spacing – 160 ns - beams are from extracted protons and internal targets Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 5

Beams In the 1 BV exp hall are from internal targets with limited intensity (<10**7 part/spill): -negative hadrons up to 55 Ge. V -positive hadrons up to 20 Ge. V -photons, electrons up to 30 Ge. V -70 Ge. V protons from crystals In the exp gallery are from extracted protons, have high intensity : -protons -intensive secondary hadrons -neutrino Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 6

Beams in the 1 BV hall 1 BV exp hall These beams are suitable for tests Negative beams (outside ring): Downstream view for beam line N 4 -Beam line N 2 -Beam line N 4 Both lines have a few branches Positive beams (inside ring): -beam line N 18 -beam line N 6 Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 7

Proposed test beam zones In main 1 BV hall: - Beam line N 2 B - Beam line N 4 V - Soft hadron beam For extracted proton beams : - beam line N 22 Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 8

Beam line N 2 B Tests with e and h beams can be done in one zone of beam line N 2 B. Heads of beams N 4 N 2 Muon halo over 1 m 2 with intensity ~ 10**6 can be used for monitoring purposes beam Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 9

Beam line N 2 B Electron beam - Beam tagging system allows to keep beam resolution ~10 times better than expected ECAL resolution - Beam spot, ~ 3 cm Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 10

Beam line N 2 B Electron beam from Pb. WO 4 array Admixtures of h- and - allow to measure calorimetric response simultaneously for e- , h- and - using Cherenkov counter Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 11

Beam line N 2 B Hadron beam • Momentum range (3355) Ge. V/c • Beam composition Intensity for p/p = 1% 70 Ge. V proton beam is also available Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 12

Beam line N 2 B Beam monitoring system / beam Set up S 1 S 4 , A 1 , A 2 - scintillation counters PC 1 , PC 2 - proportional chambers H 1 , H 2 - scintillation hodoscopes C 1 , C 2 - threshold cherenkov counters D 1 , D 2 - differential cherenkov counters STOF - time-of-flight scintillation counter Jan 17, 2007 Own DAQ system Trigger signals are available Beam experts are available A. Kozelov - IDTB 07 Workshop at Fermilab 13

Beam line N 2 B Part of test zone Beam axis is indicated by tube Zone sizes: - Beam height above flow - 5/40 ton crane hook height - Horizontal space - Longitudinal space 2. 15 m 8 m +/-3 m 10 m Antipov’s SIGMA magnet Two counting rooms (32 m 2 each) above zone are available with local net and internet connections Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 14

Beam line N 2 B for energy flow analysis Set up for EFLOW - full TESLA sector from Si to catcher - in magnetic field - expected acceptance tg xz 0. 07 tg yz 0. 20 -requires to reconsider ECAL, HCAL, ID lateral dimensions Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 15

Beam line N 2 B for energy flow analysis Magnet parameters Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 16

Beam line N 2 B for energy flow analysis Possible measurements - inelastic - N interactions at (40 -55) Ge. V/c with at least 2 particles within the set up acceptance - - p 0 n, - p n reactions ( ~(10 -3 -10 -4) of tot) to study the ECAL separation , min = 2 mm/Em Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 17

Beam line N 4 V Negative hadron beam - 20 - 40 Ge. V/c -intensity up to 107 pps (38 Ge. V/c at 1012 pot) Electron beam - 3 – 15 Ge. V/c -intensity up to 2 104 eps (10 Ge. V/c at 1012 pot) - Electron tagging system is also possible - Beam spot, ~ 3 cm Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 18

Beam line for soft hadrons Negative hadron beam Intensity for p/p = 3% Scattering angle 250 = 100 mrad = 10 mrad Same place as for beam line N 4 V Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 19

Universal beam line N 22 • Proton beam: up to 70 Ge. V/c , I = 106 – 1010 pps • Secondary hadron beam negative: 7 - 60 Ge. V/c, I 6 108 pps positive : 7 - 60 Ge. V/c, I 1010 pps • electron/positron beam: 7 – 40 Ge. V/c , I < 5 105 pps Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 20

General questions Protvino&IHEP Protvino is small town, ~40000 people Since 1963 ~100 km south from Moscow Connections by bus, ~1. 5 -2 hours IHEP was base of Protvino, ~0. 5 km from town Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 21

Protvino town Some views From Protva river Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 22

General questions One year multi entry visas exist for any country You are welcome !! Protva hotel - 200 places Costs Double lux 24 Euro Single lux 21 Euro Single room 13 Euro Double room 10 Euro All with WC, Shower, TV and refreegirator Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 23

Conclusion Protvino is ideal site for ILC beam tests 1. Suitable range of particle momentum e- : (1 -45) Ge. V/c h+/- : (1 -60) Ge. V/c - : (1 -55) Ge. V/c 2. Variety of test beam zones are available You are welcome ! Beam time is available ~2 months/year (April, Nov-Dec) Contact person: Dr. Vladimir Ammosov e-maill: ammosov@mail. ihep. ru Jan 17, 2007 A. Kozelov - IDTB 07 Workshop at Fermilab 24