Beam Delivery System( ILC ) and MDI

Contents: Machine Parameters, Beam Delivery System ( Overview : Layout, Collimation, Final Focus, Extraction) , Interaction Region ( IR engineer, Task force, Layout, Background ) , MDI, ATF2 , Software tool , Link

1. Machine Parameters and Beam-beam simulations

Suggested ILC Beam Parameter Range (v2/28/05): Link to the ILC - SLAC; and new high luminosity parameter set (Ecm=1TeV) suggested by A.Seryi (High Lum 1 and 2 in the table).
Beam and IP parameter : 500GeV (pdf, htm ) , and 1TeV ( pdf , htm )

Simulation with headon collisions by CAIN (v21e)

Brief results: Ecm = 500 and 1000 GeV

Parameter Sets	Nominal	Low Q	Large Y	Low P	High luminosity	High Lum-1	High Lum-2
input	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
jobout	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
PDF(results)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
Incoherent pairs (6-90MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
e^- beam (5MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
e⁺ beam (5MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
beamstrahlung photons (13-17MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
	two beams with horizontal offset of ±100nm
Incoherent pairs (6-90MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
e^- beam (5MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
e⁺ beam (5MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000
beamstrahlung photons (13-17MB)	500, 1000	500, 1000	500, 1000	500, 1000	500, 1000	500 , 1000	500 , 1000

,where 500 and 1000 are the center-of-mass energies in GeV.
Note: Data format :example.txt and cain2bnk.f (for JIM) and Lorentz transformation for crossing angle implementation in the pairs generated with headon collisions.　
High statistics files are stored in jlclogin2.kek.jp:/data4/jlc/tauchi/cain/500GeV/.

Data of 14mr crab crossing, Ecm=500GeV, nominal: pairs, e^-beam, e⁺beam, beamstrahlung photons

ILC-TRC

parameter list at E_beam=250GeV and 400GeV, pdf
Layout,jpg
parameters for gamma gamma option,pdf

US study: Accelerator Technology Options Report

parameter list at E_beam=250 and 500GeV,pdf
Layout,jpg

2. Beam Delivery System

EDR

EDMS for the ILC-BDS document server

ILC RDR Area Systems

the RDR-BDS , where optics and technical issues can be found in details.

BCD homepage

BDS-BCD/ACD, Draft & evoiving document, by ILC WG4.
BDS-BCD, prepared by A.Seryi for SNOWMASS 2005.

Overview of BDS for ILC

talk (pdf, 16.9MB) by S. Kuroda, 7 Jan.2005, MDI workshop, SLAC

Layout

STRAW-MAN Layout
- Deck files : link to SLAC-site
  - 20mrad crossing and L*=4.5m: BDS ( SAD, geometry, pdf ) and extraction ( SAD, geometry, pdf )
  - 14mrad crossing: BDS ( SAD, MAD, geometry, pdf ) and extraction ( SAD, MAD, geometry, pdf )
  - 2mrad crossing and L*=4.5m : BDS ( SAD, geometry, SAD, beam profile, pdf )
- Design of ILC@SLAC; 2006a ( memo ) and extraction line
Crossing angle: MDI workshop, 7 Jan.2005 and talk(pdf) by T. Tauchi at the first ILC workshop
- head-on
  - RF kicker study :
    - pdf ( 2005.3.21 , 2005.1.7 , 2005.1.19 ) by Y.Iwashita, and pdf ( 2005.2.2 ) by H.Souda.
    - pdf ( 2005.3.21 ) and 2005.2.8 by L.Keller (SLAC)
- small angle: < 2 mrad
  - UK/France design (1.6mrad crossing scheme) : latest short and long doublet designs
  - Previous studies
    - 2mrad, recent meeting, LAL 21-22 April 2005, and pdf ( 2005.3.20 by R.Appleby, 2005.3.19 by Y. Nosochkov )
    - 7mrad (GLC)
- large angle: 20-30mrad
  - latest discussions at SLAC
    - 7th June 2005
    - 31st May 2005
  - pdf ( 2005.3.19 ) by Yuri Nosochkov ,SLAC
  - Brief review of detector solenoid effect (pdf) by S.Kuroda.

Collimation System

Final Focus System

Overview by A. Seryi, talk ( pdf ) at the ATF2 mini-workshop, 5 January 2005, SLAC.

Extraction Line (Dump Line)

previuos study, optics design, tracking results etc. and minutes.
"disrupted" beam parameters at IP, in talk(pdf ) by Y. Nosochkov at MDI workshop, 6-8 January 2005, SLAC.

3. Interaction Region

3.1) IR Engineering Study

3.2) Task force in GLD

Task Force Homepage

3.3) Layout

Three detector concepts, pdf
SiD, LDC, GLD

3.4) Background Estimation

Comparison between 0-7 and 20mrad crossing angles
pdf ( 2004.4.20, 2005.3.19 )
Muons
Synchrotron Radiations
Pairs and Neutrons
Loss in the extraction line
- 2mrad ; htm and A.Seryi's results (pdf )
- 2mrad : estimation of radiative Bhabha by T. Maruyama and L. Keller, 27 July 2005 pdf, 8pages, 466KB

4. MDI ( Machine Detector Interface )

Presentations at LCWS2006, 10 March 2006, Bangolore, India
- GLD by T.Tauchi, SiD by P.Burrows and LCD by K.Busser
- Overview by A.Seryi
MDI task list for GLD; htm and pdf
Urgent questions from WWS: htm and replies : GLD, SiD, LDC

5. ATF2

Test facility of the ATF2 at KEK , at ILC-Asia WG4
The ATF2 Proposal (access control)
- The PAC05 paper and the poster (pdf)
- Proposal, talk (pdf) by T.Sanuki, First ILC workshop, 13-15 November,2004, KEK;
- FFIR Test facility : talk and proceeding paper, T. Tauchi. LCWS04,19-23 April 2004, Paris
- A plan of KEK-ATF Final Focus Test Beam Line (ATF2) proceedings paper, J.Urakawa et. al., Nanobeam2002, Lausanne, 2-6 September, 2002.
- Final Focus Test Facility for the ATF, proceedings paper, S.Kuroda, APPI 2002, 13-16 February, 2002, Iwate, Japan
Overview
- Talk at Orsay, T.Tauchi, 17 June 2005.
- Talk at LCWS05, A.Seryi, 20 March 2005, Stanford university.
- Talk of "ATF2 project plan" at LCPAC2005, T.Tauchi, KEK, 25 February 2005.
- Talk (pdf, 7.3MB) by T. Tauchi, ATF2 mini-workshop, 5 January 2005, SLAC
Beam energy at the ATF2, by K.Kubo and S.Kuroda
Andrei's ATF2 site
Layout and Optics ; version 4.0 ( June 2008)
- Layout ; (pdf, June 2007)
- Optics v4.0 ;
  - SAD input file (commands: dr;disp g;beam gauss;disp b ) and MAD files
  - Geometrical data; excel file and text file , where explanation of parameters can be found in the SAD online manual .
  - Beam size along the beam line (linear optics): excel file and text file
  - Plot of optics; pdf
  - Device list; excel file
- M.Woodley's optics with all versions
- M.Woodley's ATF information
- previous studies
  - Layout; Both of Baseline and Optimal ones
  - Optics; Both of Baseline and Optimal ones
    - Baseline optics: SAD deck, figure, Q-magnets (E=1.3GeV)
    - Optimal optics: SAD deck, figure , geometrical data (excel, txt files) and beam size data (excel, txt files)
    - Kuroda Optics, talk,pdf, by S. Kuroda, ATF2 mini-workshop, 5 January 2005, SLAC
ATF2 Flight Simulator at SLAC
Note : to request an account from the root wiki page, click here for registration.
ATF2 Low Betas at LAL
Mailing lists with subscription form and archive of previous mails
- BDS mailing list on the ILC-WG4 including the ATF2
- ATF2-magnet mailing list for designing all the magnets in the ATF2
- ATF2-commissioning mailing list for the ATF2 commissioning team

6. Software tools

CAIN for simulation of beam-beam interaction at LC :
- latest version of 2.35 (fortran90) released on 30 April 2003. The latest version can be downloaded from this webpage.
- version 2.1e based on fortran77 and the linux version (tar.gz file ,5.4MB, including the manual)
SAD: beam optics design (Ring design by SAD; S.Kuroda, lecture notes for OHO99, pdf-Japanese)
SLEPT project:LINAC simulation ( paper (pdf) )
LCBDS:BDSIM (access control), University of Tokyo; simulation of BDS based on GEANT4 (previous web-site).

7. Link

ILC-Asia WG4 and JLC-BDS
BDS by ILC-SLAC, and slides at the ILC-SLAC meetings, and BD and IR
EuroTeV WP2: Beam Delivery System and LC-ABD in UK:(Linear Collider: Accelerator and Beam Delivery);
talk on Ongoing & Planned BDS work,pdf, by Deepa Angal-Kalinin, at SLAC, 11 January 2005.
MDI at Orsay