IR Task Force in the GLD group
1. Minutes of meetings
Links and references :
- 8th September 2006, optimization of anti-DID (presentation, pdf, 3pages, 93kB) .
- 1st September 2006, solenoid magnetic field with Bz, Br and anti-DID (presentation, pdf, 4pages, 107kB) .
- 28th August 2006, solenoid magnetic field with Bz only and anti-DID (presentation, pdf, 2pages, 112kB) .
- 17th August 2006, 3D solenoid magnetic field and QD0 field? .
- 4th August 2006, Updates of DID and anti-DID fields in Jupiter, and two photon process veto efficiency.
- 28th July 2006, TPC background hits by Jupiter,
- 14th July 2006, TPC and VTX background hits by Jupiter,
- 6th July 2006, CAIN pairs, background simulation by Jupiter,
- 29th June 2006, background simulation by Jupiter,
- 23rd June 2006, gamma gamma option and background simulation by Jupiter,
- 16th June 2006, background simulation by Jupiter,
- 9th June 2006, background simulation and improvements of Jupiter (pre-hits, HISTORY KEEPER and test detector).
- Fifth: after SNOWMASS,2005 will be.
- Fifth: 10th August,2005
- Forth: 3rd August,2005
- Third: 27th July,2005
- Second: 20th July,2005
- First: 6th July,2005
to design the interaction region (IR) of GLD for both cases of 2 and 20mrad crossing schemes
, where definition of the IR is a region within the final doublets at upstream and downstream.
3. Detector: study items in the GLD
- based on the GLC detector (Aso's studies)
- beampipe within the IR - the innermost radius of the vertex detector
- solenoid magnetic field, and anti-solenoid, DID
- pair monitor; distance from IP and innermost radius
- minimum veto angle by very forward calorimeter; efficiency and acceptance of e-ID
- background estimation (VTX and TPC, CAL for muons? ); LCBDS and Jupiter
- studies with L*=3.5, 4.1m (UK/France and SLAC designs), and 4.5m ?
- choice of "crossing angle" - comparison with two schemes at least
- SUSY - stau pair production, impact of the minimum veto angle
- Physics with charm tagging with small beam pipe
5. Machine: study items in the ILC-BDS
- [crossing angle] - 0 crossing angle with RF kicker , if experimenters request?
- L*=4.5m - design of BDS optics
- final quadrupole magnet ; design/type and stabilization, location of the anti-solenoid
- design of extraction line from IP to the beam dump ; L*_ext, apertures and diagnostic section
- collimation depth and muon spoiler/attenuators
- feedback system in IR ( BPMs and kicker )
- It uses the beam deflection in two beam collisions with a finite vertical offset. The deflected orbit is measured by BPM at the downstream of IP, while the orbit is corrected by a kicker at the upstream. For simplicity and faster feedback, it is preferable to have no magnet between the BPM and the kicker. Therefore, the feedback system will be installed in the IR. However, in principle, they can be installed at more downstream/upstream if the feedback time is within the bunch separation.