Damping  Ring Physics

April 22, 2002

NLC Technical Page   •  Meeting Schedule   •   SLAC Home Page 

Link to all meeting notes (ordered by date, filenames are a bit arbitrary)

Topics:

Technical and Cost reviews - 2000

• Summary of cost reduction - Fall 1999

CD-1 Reviews and related planning - 3/18/98, 6/25-26/98, 11/4-5/98, 5/24-28/99

• 3/18/98 DR related presentations
• 6/25/98 DR ... (Tor and M. Ross presentations)
• 11/4 and 11/5/98  (M. Ross and J. Sheppard) -   Agenda (4th 5th)
• 3/4/99 AFRD Program Review (J. Corlett)
• 5/24 - 5/28/99 DoE NLC CDR Review (Lehman) Agenda (Monday, Tuesday)
  • Damping Ring talk (for 5/25/99) (M. Ross)
  • Collective effects talk (5/26/99 J. Corlett)
  • Wiggler talk (5/26/99 S. Marks)
  • Kicker talk (5/26/99 K. Jobe)
• 2/17/00 Cost and Contingency recommendations (from John Cornuelle and managers group)

DR papers - PAC99:

• The Next Linear Collider Damping Ring Complex
• The Next Linear Collider Damping Ring RF System
• Damping Ring Kickers for the Next Linear Collider

Ring Optics Design:

• Dynamic Aperture (talk) (Note) - H. Nishimura  4-5-00 - ZDR figure from Tor/Yunhai
• Main damping ring optics - document by P. Emma 12-23-98 (rev. 2, 4-23-99)
• Pre-damping ring optics - document by P. Emma 3-24-99
• Main Damping Ring design talk - P. Emma

Ring Impedance Estimates 

• Main Ring Impedance estimate talk by Cho Ng 9-22-99

Collective Effects

• Intra-beam scattering - paper by T. Raubenheimer 1994
• Estimate of the ATF Vertical Emittance - paper by T. Raubenheimer and ATF group 1993
• T. Raubenheimer Thesis 1991 (Chapter 2 is about Damping Rings)

Requirements, specifications, and R&D:

• CDR0.4 Requirements/specifications (McKee) 4-00
• Injector Complex Instrumentation - CD-1 document by M. Ross 2-22-99
• drrf_mm.pdf - M. Minty, 6/3/98, study of tolerances for the proposed high duty-cycle using feed-forward, energy aperature for coherent beam oscillations, etc.
• Tor's ZDR meeting notes.html
• 4-22-98 DR R&D Topics.pdf - P. Krejcik 4/22/98, discussion of prototype and r&d items for the NLC damping ring, working backwards from 2004.
• March_11_1998_Notes.pdf - McKee 3/11/98, review of modeling process and component count methods, lists of items and an early pass at component costing.
• Tor_Review_030498.pdf - Tor 3/4/98, review of the ZDR damping ring effort (with names), list of expected changes, and an annotated/updated set of parameter sheets and sketches.

System Engineering design reviews - McKee

• System Engineering Kick-off - 2/17/99 B. McKee

Technical Systems Engineering Team Reports

• Magnet / Power Supply Systems (C. Spencer) July 14, 1999 (see also below 2-00)
• Installation TSET presentation (K. Fant - 2-00)
• Vacuum Systems (J. Weinberg) July 14, 1999
• Dump/Stopper/Collimators (E. Doyle) July 14, 1999

RF controls and cavity design:

• 2-16-00 RF report - LANL window - R. Rimmer
• RF Cavity reports - January 2000 (LCC-0032 and LCC-0033)
• 5-12-99 Transient behaviour / Novel Cavity shapes - R. Rimmer
• 9-16-98 RF- Schwarz - Cavity RD plan
• 9-16-98 LLRF-Corredoura - Baseline description and cost estimate
• 3-18-98 RF-Schwarz.pdf - H. Schwarz, 3/18/98, review of rf power systems including estamates of manpower and funding requirements.  A comparison between frequencies is included.
• 3-18-98 RF-Corredoura.pdf - P. Corredoura, 3/18/98, proposal and costing for low-level rf controls.

Vacuum systems

• Aluminum vacuum chamber processing -papers from JV ST,  machining coolant
• 2-16-00 Proposals (2) for testing outgassing of Al - T. Saleh/ K. Kennedy and L. Eriksson (paper from Dafne EPAC 96)
• 2-16-00 Wiggler photon stop design - G. Koehler
• 2-16-00 Wiggler photon stop power loads - near the end (curved / faceted / 20 / 13 cm long) N. Hartmann
• 9-15-99 Wiggler thermal gas/ TSP design - K. Kennedy
• 5-5-99 Wiggler vacuum photon stop concept - G. Koehler (color version!)
• 2-24-99 Wiggler vacuum chamber design concept - K. Kennedy
• 4-1-98 ZDR DR Vac Chamber.pdf
• SPEAR-3 Vacuum chamber Cu vs. Al tradeoff study May 1999 (N. Kurita)

Topic list

Magnets

• PM / EM list 4-00 (Cherrill Spencer)
• TSET report from Cherrill Spencer - 2-9-00
• 11-11-99 Permanent magnets FNAL mtg - A. Ringwall/W. Fowler (notes 11-29) (see also the PM web page)
• 3-25-98 Magnet-C. Spencer - Cherrill Spencer, review of magnet design (not including the combined function bend).

Wiggler

• Transverse Profile report (4-00)
• 2-16-00 Field comparison between SPEAR BL11 wiggler (Safranek) and NLC DR EM design (Marks)
• Wiggler system report - January 2000 (LCC-031)
• 2-24-99 Electromagnet wiggler design - S. Marks
• 9-16-98 Wiggler - R. Schlueter - Wiggler parameters and costs
• Papers about Wiggler radiation damage

• Old papers (LeDuff and Winick) about PM synchrotron light sources (1983)
• Note from Halbach about variable magnets with fixed stored energy (2000)
• Experience with permanent magnets in SLC DR's (1994)

Power Conversion

• 10-98 Personnel Protection - P. Bellomo

Kickers

• IGBT Schmatic (10/15/99) Jobe
• IGBT detailed pictures (10/15/99) Jobe
• 9-30-98 Kicker Cassel/Pappas - Magnet simulation (C. Pappas) and prototype pulser test results (D. Cassel)
• Kicker talk (color) (ppt) (5/26/99) K. Jobe
• Kicker - (11/5/98) C. Pappas / R. Cassel
• Kicker Design - Pappas
• 5-27-98 K. Wille Delta-Dortmund Kickers
• 4-8-98 Kicker - Mattison.pdf - Tom Mattison, 4/8/98
• PEP Abort system papers (29-93 and 40-93) Heifets

Controls

• 2-10-99 Controls Interface - Costing guidelines - R. Humphrey
• Controls Requirements - CD-1 document by M. Ross 2-9-99

Beam Position Monitors and other diagnostics

• 9-98 M. Ross Instrumentation overview
• bpm_ss.pdf - Steve Smith 5/13/1998

Conventional Facilities

• RF Water requirements for SPEAR3 and PEP (J. Judkins) - received 4-00
• ALS Thermal Stabilization - from Bob Miller of ALS/LBNL
• Short presentation on enclosure temperature stability 11-99 M. Ross

Radiation

• 2-00 J. Liu - Activation of Sm Co vs ferrite
• 9-98 S. Mao - Dumps, bypass and a copy of 4-98 presentation
• 4-98 S. Mao LTR Radiation Protection

Topic list

Links to: the NLC Home Page,  the SLAC and KEK Institutional Home Pages.

Page credits and comments.