|
LHC Collimation Working Group |
Bookmarks: Recent summary talk(s) - Reports at CERN meetings - Conference talks
July 2008: Two status talks at the 51th meeting of the LHC Commissioning Working Group.
R.Assmann: System Status and Commissioning Plans without and with Beam (PPT)
S. Redaelli: Results from Collimator Remote Commissioning (PDF)
- - - -
November 2007: S. Redaelli: Cold checkout preparation for the collimation system (PDF)
(OP cold checkout workshop)
- - - -
November 2006: R. Assmann at the LHCCWG meeting: Collimator during betatron squeeze (PDF)
- - - -
May 2006: R. Assmann at the LHCCWG meeting: Collimator commissioning at 450 GeV (PDF)
- - - -
January 2006: Chamonix proceedings: paper.
August 2008: T. Weiler at HB2008 (PDF)
- - - -
November 2007: R. Assmann at the GSI: Beam losses and Collimation at the LHC (PPT)
(Seminar at GSI)
- - - -
October 2007: S. Redaelli: Overview of loss map simulations (PDF)
(Beam'07 workshop)
- - - -
September 2007: Proceedings of the Workshop on Materials for Collimators and Beam Absorbers
Sound and vibration measurements:
S. Redaelli: Accelerometer and microphone measurements of the LHC collimator during impacts of proton beams (PDF)
G. spiezia at the CWG meeting of May 2005: Collimator sound and
vibration measurements at the TT40 tests (PDF)
Paper presented at PAC05: Paper on preliminary results from 2004 measurements (PDF)
- - - -
June 2007: R. Assmann: Update on the LHC collimation system (PDF)
(LHC Machine advisory committee no. 21)
- - - -
November 2006: G. Robert-Demolaize: Design and performance optimization of the LHC collimation system (PDF)
(CERN AB Seminar)
- - - -
June 2006: S. Redaelli: The LHC beam collimation (PDF)
(HB2006)
June 2006: S. Redaelli: Commissioning of the LHC collimation system (PDF)
(HB2006)
- - - -
12/5/03 R. Assmann: Designing and Building a
Collimation System for the High-Intensity LHC Beams (PPT)
(PAC03)
8/4/03 R. Assmann: Status of the
LHC Collimation System (incl thoughts of 3-stage system) (PDF)
(LEMIC)
16.06.08 Minutes (PDF)
G. Bellodi: ICOSIM results for different computation of ion cross
sections in the collimator material (PDF)
S. Redaelli: Planning for the 2008 collimator MD's at the SPS (PDF)
S. Redaelli: Preliminary results of TI2 collimator beam commissioning (PDF)
M. Brugger: Simulations of beam pipe heating and BLM thresholds (PDF)
22.04.08 Minutes (PDF)
C. Bracco: Betatron cleaning in IR3 - I (PDF)
T. Weiler: Betatron cleaning in IR3 - II (PDF)
V. Previtali: Betatron cleaning in IR3 - III (PDF)
G. Bellodi: Betatron cleaning in IR3 for ions (PDF)
18.02.08 Minutes (PDF)
D. Kramer: Results of the 2007 BLM hardware tests in LSS5 (PDF)
T. Bohlen: Beam Loss Calibration Studies at the LHC Collimator in LSS5 (PDF)
04.02.08 Minutes (PDF)
E. Radermacher: TOTEM controls (PDF).
B. Salvant: Status of collimator impedance measurements (PDF)
P. Anton Letnes: Beam scraping at the SPS (PDF)
M. Mauri: Energy deposition from direct proton losses (PDF)
21.01.08 Minutes (PDF)
S. Redaelli: Review of open actions (web page)
M. Jonker: Final design of collimator FESA servers (PDF)
T. Weiler: Collimator hardware commissioning procedures (PDF)
10.12.07 Minutes (PDF)
R. Assmann: Status of collimator installation and commissioning plan (PDF)
(Talk of the 22nd LHC machine advisory committee)
M. Jonker: Status of collimator controls (PDF)
12.07.07 Minutes (PDF)
F. Caspers: Proposal for impedance measurements on the collimator prototype (PDF)
M. Brugger: LHC passive absorbers (PDF)
S.
Roesler: RP aspects for the LHC passive absorbers (PDF)
04.07.07 Minutes (PDF)
I. Yazynin: Possibilities of using the crystalline targets for beam
collimation in the LHC (PDF)
16.06.07 Minutes (PDF)
D. Bocian: Update on quench limit measurements (PDF)
M. Sapinski: Losses from wire scanners (PDF)
07.05.07 Minutes (PDF)
F. Cerutti: FLUKA studies for the LHC beam scrapers (PDF)
J. Jowett: Status and plans for the LHC ion collimation (PDF)
23.04.07 Minutes (PDF)
S. Redaelli: Preliminary MD planning for the 2007 SPS run (PDF)
C. Bracco: Collimator settings during the energy ramping (PDF)
T. Weiler: Aperture validation for the 2-beam collimators (PDF)
T. Weiler: Triplet aperture at 7TeV during the betatron squeeze (PDF)
19.03.07 Minutes (PDF)
P. Bestmann: Survey of collimator alignment in high radiation environment (PDF)
F. Cerutti: FLUKA studies on passive absorbers (PDF)
D. Kramer: Results of 2006 BLM tests at the SPS and proposal for 2007 MD's (PDF)
05.03.07 Minutes (PDF)
L. Sarchiapone: Updates on FLUKA simulation of TCDQ halo loads at IR6 (PDF)
K. Kershaw: Collimator handling in the LHC tunnel (PDF no photos, PDF, PPT)
19.02.07 Minutes (PDF)
A. Ryazanov: Studies of Radiation Damage in Irradiated Graphite
Collimator Materials for LHC (PDF1, PDF2 - 24MB with images)
11.12.06 Minutes (PDF)
G. Bellodi: Update on cleaning inefficiency versus collimator length (PDF)
C. Bracco: Beam-based alignment and tail repopulation (PDF)
T. Weiler: Beam scraping studies (PDF)
D. Kramer: Fast beam loss transients (PDF)
04.12.06 Minutes (PDF)
S. Redaelli: Overview of MD measurements and available data (PDF, Fast BCT: Movie 1, Movie 2, Movie 3)
M. Jonker: Performance of collimator controls (PDF)
M. Sobczak: Timing issues (PDF)
S. Redaelli: Precision of collimator positioning and gap values (PDF)
E. Metral: First results of the 2006 collimator impedance measurements (PDF)
C. Bracco: Beam-based alignment and tail repopulation (PDF) - Postponed to next meeting
T. Weiler: Beam scraping studies (PDF) - Postponed to next meeting
27.11.06 Minutes (PDF)
L. Ponce: BLM installation layout (PDF)
G. Bellodi: BLM for ions in IR3 (PDF)
R. Steinhagen: LHC orbit stability during betatron squeeze (PDF)
23.10.06 Minutes (PDF)
C. Bracco : Planning for the SPS and TT40 collimator MD's (PDF)
09.10.06 Minutes (none)
R. Assmann: Dry-run of the talk at the LHC schedule and budget review
02.10.06 Minutes (PDF)
R. Assmann: Introduction (scope, priorities) (PDF)
M. Jonker: Status of controls (SPS + TT40) (PDF)
E. Metral: Impedance measurements (PDF)
S. Redaelli: SPS beam loss measurements (PDF)
V. Kain: TT40 test preparation issues (PDF)
A. Bertarelli: Jaw displacements vs. time after beam impacts (PDF)
18.09.06 Minutes (PDF)
R. Assmann: Priority list for FLUKA studies (PDF)
M. Brugger : Priority list for FLUKA studies (PDF)
R. Assmann: Brainstorming on collimator tests with beams (PDF)
17.07.06 Minutes (PDF)
D. Bocian: Latest estimates of quench limits
(PDF)
E. Metral: Latest estimates of collimator impedance effects
(PDF)
M. Santana: Status of IR7 energy deposition
studies (PDF)
07.07.06 Minutes (PDF)
A. Ferrari: Plans for future FLUKA studies (PDF)
19.06.06 Minutes (PDF)
L. Ponce: Locations of BLM based on proton loss maps
(PDF)
G. Robert-Demolaize: Systematics of differences between B1 and B2 losses
(PDF)
09.06.06 Dry-run of Ralph's presentation at the MAC (final version on the LHC MAC site)
22.05.06 Minutes (PDF)
G. Bellodi:
Updated ion simulations and final BLM location (PDF)
C. Bracco: Collimation
commissioning and error scenarios (PDF)
T. Weiler: B2 simulations and status of IR
loss maps studies (PDF)
08.05.06 Minutes (PDF)
G. Bellodi:
Locations of BLM at IR7 (PDF)
L. Sarchiapone: FLUKA simulations of TCDQ halo loads (PDF)
A. Ryazanov: Status of collimation material
radiation simulations (PDF no movies,
PPT with movies)
03.04.06 Minutes (PDF)
J. Jowett : The iLHC project (introduction, status, timeline) (PDF)
G.
Bellodi: Status of simulations for the ion collimation (PDF)
H.
Braun : Analysis of BLM signal for the 2004 tests at the SPS (PDF)
20.03.06 Minutes (PDF)
M. Santane-Leitner: Status
of IR7 FLUKA simulations (PDF)
06.03.05 Minutes (PDF)
Proposed tests with beam at SPS and TT40 (PDF)
V.
Kain
Tests for collimator setup in the transfer lines (PDF)
24.10.05 Minutes (PDF)
M.
Lamont Updated
estimates of loss loads in the LHC (PDF, PPT)
J.
Vollaire
Radiation issues for collimator cooling water (PDF)
10.10.05 Minutes (PDF)
B. Goddard Updated layout of IR2/8
at the TCT/TCLI locations
S. Ramberger Review of radiation limits of the
IR3/IR7 warm magnets (PDF)
M. Magistris Simulated radiation doses at
the MBW's of IR7 (PDF)
A. Presland Ozone production
at IR7 (PDF)
16.09.05 Minutes (PDF)
A. Ryazanov: Shock wave investigations for in collimator
materials
under 7 TeV proton impacts (PDF)
12.09.05 Minutes ()
Round table: Review of action
items (HTTP)
O. Aberle:
Measurements of collimator jaw deformation for the TT40
collimator (PDF)
A.
Presland: Simulated
energy deposition and temperature rise in
the assembled jaw (PDF)
A.
Bertarelli: Mechanical shock
calculations and proposed solution (PDF)
R. Assmann and S. Redaelli: Impact on the system performance (PDF)
08.07.05 Minutes (PDF)
W. Scandale Goals,
deliverables and timeline of crystal experiment (PDF)
W. Scandale Layout of crystal
experiment at the SPS (PDF)
C.
Biino
External contributions from Italy and Russia (PDF)
27.06.05 Minutes (PDF)
J. Wenninger Orbit
feedback for collimation - presented at LHC MAC of 06/2005 (PDF)
H.
Braun
LHC ion collimation - presented at LHC MAC of 06/2005 (PDF)
A. Presland
Energy deposition studies for accident case scenarios at 7 TeV (PDF)
S.
Redaelli
Web repository of the aperture model for beam loss studies (http)
13.06.05 Minutes (PDF)
R. Assmann
Brain-storming on possible collimation priorities for the LHC startup (PDF)
S.
Redaelli
Cleaning efficiency and beam losses with 0.6m long TCPs at IR7 (PDF)
M. Magistris Energy
deposition studies with passive absorbers at IR7 (PDF)
09.05.05 Minutes (PDF)
I. Kourotchkine Energy deposition in SC-link and
fibres at IR3 (PDF)
J.B. Jeanneret Quench limits of
superconducting links (PDF)
M. Magistris Update on
IR7 energy deposition studies (PDF)
C. Rathjen
Estimate of deposited energy in the vacuum chambers (PDF)
02.05.05 Minutes (PDF)
G. Robert-Demolaize Loss maps with all LHC collimators, diluters
and absorbers (PDF)
G. Spiezia Collimator sound and
vibration measurements at the TT40 tests (PDF)
R. Assmann Phase-II collimator studies at SLAC and
CERN - preliminary thoughts (PDF)
A. Masi Order of
cables for IR3 (PDF)
25.04.05 Minutes (PDF)
E. Metral
Collimator impedance: SPS measurements vs theory (PDF1,
PDF2,
PDF3)
A.
Rossi
Update on vacuum pump functional specifications (PDF)
A. Presland Energy
deposition studies for failure scenarios at 7 TeV (PDF)
M. Santana Update on
energy deposition studies at IR7 (PDF)
O. Aberle
Availability of collimator prototypes (PDF)
15.04.05 Minutes (PDF)
D. Still (FNAL) Collimation experience at the Tevatron (PDF)
21.03.05 Minutes (PDF)
M. Magistris Status of energy
deposition studies at IR7 (PDF)
A. Ryazanov Effect of irradiation on
graphite materials (PDF,
References)
14.03.05 Minutes (PDF)
A. Rossi Overview of
collimator pumping modules (PDF)
C. Rathjen Integration issues of
collimator pumping modules (PDF)
A. Presland Performance analysis of IR6 TCDQ
system for different load cases (PDF)
M. Magistris Status of energy deposition studies at IR7 (PDF)
28.02.05 Minutes (PDF)
H. Braun Trip Report from RHIC
(PDF)
S. Redaelli FLUKA inputs for various
accident scenarios (HTTP)
S. Redaelli High resolution capacitive
gauge for measuring collimator jaw
positions - Results of TT40 test (PDF)
R. Losito Collimation
position control (PDF)
14.02.05 Minutes (PDF)
P. Collier
Infrastructure layout of IR7 (PDF)
K. Tsoulou Update on radiation simulations at
the RR's of IR7 with active absorbers (PDF)
M. Santana Update on energy deposition studies
at IR7 with new absorbers -
heating of RF fingers (PDF)
G. Robert-Demolaize Preliminary estimates of cleaning inefficiency and
loss maps with
the new absorbers at IR7 (PDF)
A. Grudiev Update on HOM mode simulations (PDF)
S. Calatroni RF fingers for secondary collimators (PDF)
31.01.05 Minutes (PDF)
M. Magisris Update on energy
deposition studies at IR7 - new absorber locations (PDF)
R.
Assmann Total number of collimators and absorbers
(V6.5) (PDF)
C.
Rathjen Results of tests on flange
for ultra high vacuum (PDF)
M.
Gasior Tunes measurements vs.
collimator gap at the SPS (PDF)
A.
Grudiev Simulations of trapped modes in the LHC
collimator (PDF)
S. Redaelli Measuring the beam size by
scraping the beam with the collimator (PDF)
10.12.04 Minutes (PDF)
K. Tsoulou Radiation studies
at RR75/77 with shieldingg (PDF)
A. Ryazanov Investigation of the effects of 7
TeV proton beams on the
LHC collimator materials (PDF)
03.12.04 Minutes (PDF)
R. Assmann MAC talk 1 - OPEN session (PDF)
R. Assmann MAC talk 2 - CLOSED session ()
26.11.04 Minutes (PDF)
B. Holzer
BLM data from the
collimator tests at SPS and TT40 (PDF)
M. Santana Status of energy
deposition studies at IR7 (PDF)
A. Bertarelli 2-D thermo-mechanical
analysis of injection accidental case (PDF)
G. Robert-Demolaize Measured temperature of the TT40 collimator (PDF)
H. Vincke
Remanent radiation at TT40 - simulations vs measured values (PDF)
19.11.04 K. Tsoulou: Update on the shielding studies for the regions UJ76, RR73 and RR77 (PDF)
12.11.04 Minutes (PDF)
K. Tsoulou
Shielding study for the regions UJ76, RR73 and RR77 (PDF)
29.10.04 Minutes (PDF)
M. Magistris
Status of energy deposition studies at IR7 (PDF)
I. Bayshev
Active absorbers at IR3 - a short summary (PDF)
I. Kurochkin
Passive absorbers at IR3 (PDF)
08.10.04 Minutes (PDF)
M.
Gasior
Some results from the Base-Band Q (BBQ) measurements (PDF)
20.09.04 Minutes (PDF)
K.
Tsoulou
Radiation levels in the regions UJ76, RR73, RR77 (PDF)
M.
Santana
Status of energy deposition studies at IR7 ()
O.
Aberle
Status of collimator tests at SPS/TT40 (PDF)
S.
Redaelli
Calibration of the collimator motors for the SPS and TT40 prototypes (PDF)
03.09.04 Minutes (PDF)
G.
Arduini
MD planning for the collimator tests at SPS and TT40 (PDF)
M.
Brugger
Status of radiation impact studies at IR7
27.08.04 Minutes (PDF)
R.
Assmann
Discussion on the report from the external collimation review (PDF)
M.
Santana
Status of energy deposition studies at IR7 (PDF)
23.07.04
Minutes (PDF)
B. Goddard: TCDI collimator specifications (PDF)
04.06.04 Minutes (PDF)
I.
Baichev:
Energy deposition at IR3, proposal for local absorbers (PDF)
D.
Macina:
Discussion on available space at IR5 (PDF)
28.5.04 Minutes (PDF)
R. Assmann: Impressions on
RHIC Collimation System (PDF)
23.4.04 Minutes (PDF)
V.
Kain:
Proposed location for tertiary collimators (PDF)
H. Braun:
Collimation of ions: locations of additional spoilers (PDF)
G. Robert-Demolaize: Status of SixTrack simulations with collimators (PDF)
19.03.04
Minutes (PDF)
(CWG) A.
Ferrari: Survival
of thin coatings with beam impact
(PDF)
O. Aberle:
Surface resistance on collimator jaw material (PDF)
F.
Caspers: Information:
Panasonic Super Graphite (PDF)
S. Redaelli: Discussion
of detailed aperture model (PDF)
E.B. Holzer: Beam loss
distribution in arc downstream of IR7 (PDF)
06.02.04
Minutes (PDF)
(CWG) J.B.
Jeanneret: Power deposition in the vacuum chambers of
the MQW magnets
of IR3 and IR7 (AB-Note-2003-085, PDF)
V. Vlachoudis: Energy deposition on secodary
collimators at IR7 (PDF)
M. Magistris: Radiation issues for the
LHC collimator test in TT40 (PDF)
28.11.03
Minutes
(PDF)
(CWG) H.
Braun: Collimation of Lead Ions
(PDF)
E.B. Holzer: BLMs for the LHC collimator tests
(PDF)
B. Goddard: TDI setting and protection
(PDF)
V. Kain: Study of loss distribution with detailed aperture model
(PDF)
E. Metral: Automatic Collimator Impedance Computations
(PDF)
20.10.03
Minutes
(CWG) H.
Vincke: Radiological Issues for Tests in TT40 (PDF)
R. Assmann: Final Discussion: Collimator and Material Test in SPS Ring
and TT40
(PDF)
10.10.03
Minutes
(PDF)
(CWG)
R. Assmann: Proposal for an LHC Collimator Test in the SPS (PDF)
R. Schmidt: Proposal for a Model Validation Material Test in TT40
(PDF)
5.9.03
Minutes
(PDF)
(CWG)
R. Assmann: Organigramm CWG-CP-EST
(PDF)
11.7.03
Minutes
(PDF)
(CWG)
B. Goddard: Present Status of the TCDQ
(PDF)
W. Weterings: TCDS Diluter to protect MSD Septum Magnets
(PDF)
B. Goddard: Failures not covered by the TCDI collimators
(PDF)
R. Assmann: Studies on a Different Optics and Low Impedance Solution
for IR7
(PDF)
V. Kain: Optics Solution for IR7 (PDF)
13.6.03
Minutes
(PDF)
(CWG)
M. Jimenez: Graphite and C-C materials for UHV applications (PDF)
C. Rathjen: 3D studies of collimators between MQWs
(PDF)
R. Assmann: News on Radiation Studies from M. Brugger
(PDF)
R. Assmann: News on Phase 1 and Phase 2 of LHC collimation
(PDF)
H. Burkhardt: TCDI (Transfer Line Collimator) Concept
(PDF)
JB. Jeanneret: Collimation, materials, failure modes - II
(PDF)
B. Dehning: Request for Beam Loss Simulations
(PDF)
30.5.03 Minutes
(PDF)
(CWG) H. Braun: Ion Fragmentation
(PDF)
R. Assmann: Towards a Proposal for the LTC on June 25th
(PDF), Shadow Study
(PDF)
JB. Jeanneret: Collimation, Materials, Failure Modes
(PDF)
02.5.03 Minutes
(PDF)
(CWG) JB. Jeanneret: List of foreseen
Collimators and Absorbers in the LHC (PDF)
JB. Jeanneret: Ongoing and Future Studies with IHEP
(PDF)
M. Brugger: Status of Radiation Studies in IR7
(PDF)
24.4.03 Talks
on Crystal Collimation for the LHC
(ABPF) V. Viryukov, V. Guidi, W.
Scandale: Crystal collimation for LHC (PPT)
V. Guidi: The Sensors and Semiconductors Laboratory (PPT)
11.4.03 Minutes
(PDF)
(CWG) H. Burkhardt: Optics of
TI8+LHCbeam2
(PDF)
J. Uythoven: MKD re-trigger delays (PDF)
R. Assmann: Proton Impact for New Dump Re-triggering Time,
specifications of BLM system (PDF)
D. Kaltchev: Trial Moves of IR7 Quadrupoles to provide Space for longer
Collimators (PDF)
8/4/03 R. Assmann: Status of the
LHC Collimation System (incl thoughts of 3-stage system) (PDF)
(LEMIC)
28.3.03 Minutes
(PDF)
(CWG) B. Goddard: Impact of Injection
Kicker Failures (PDF)
R. Assmann: Status of the LHC Collimation System
(PDF)
R. Schmidt: Space-Reservation for Additional Collimators at the
Triplets
(PDF)
P. Sievers: Temperatures in Short Collimators with Transient and
Continuous Proton Losses (PDF)
26/2/03 R. Assmann: Status of the LHC
Collimation System - Towards a Low-Z System (PDF)
(LHC TB)
14.3.03 Minutes
(PDF)
(CWG) R. Assmann: Collimation with Ions -
Collaborative Study with RHIC (PDF)
R. Assmann: A Three-Stage Cleaning System with Improved Robustness and
Impedance (PDF)
13/3/03 R. Assmann: Status of the LHC
Collimation System - Towards a Low-Z System (PDF)
(LHC Machine Advisory Committee)
5/3/03 R. Assmann: Can
Collimation Limit the LHC Performance (PDF)
(Chamonix XII)
14.2.03 Minutes
(CWG) H. Burkhardt: Review of Transfer
Line Collimation (PDF)
R. Assmann: First Look at Slow Case (PDF)
R. Assmann: Required Lengths of Collimator Jaws for Different Materials
(PDF)
31.1.03 Minutes (PDF,
WORD)
(CWG) R. Assmann: The Collimation WG and
the Collimation Project
F. Ruggiero: Impedance Constraints for Collimation (PDF)
J.B. Jeanneret: Need for TCL-type collimators
H. Burkhardt: Transfer Line Collimation and Protection at Injection
Round-table: First discussion on local electron cloud
6.12.02 Minutes
from Meeting on Status of
Collimation Insertions (Word,
PDF)
R. Assmann: The Project on LHC Collimation (PDF)
M. Brugger: Constraints to Handling of Collimators, Shielding and
Vacuum
Installations (PDF)
4.12.02 I.
Kouroutchkine:
Preliminary simulation of beam loss Monitor signals in IR3 (PDF)
(BCSG) B. Jeanneret: Multi-turn tracking with
graphite
jaws (PDF)
20.11.02 M. Brugger:
STRUCT/K2/FLUKA
- Code Comparison (PDF)
(BCSG) D. Kaltchev: Results with
DIMAD/STRUCT (PDF)
15.11.02 R. Assmann: The Project on LHC
Collimation (PDF)
(meeting with Benvenuti's group)
23.10.02 R. Assmann:
Maximum Orbit
at Dump with Collimators (PDF)
(BCSG) R. Schmidt: Principle of a Step
Collimator
J.B. Jeanneret: Input for INB Radiation Studies
9.10.02 R.
Assmann:
Preliminary work flow for collimation project (PDF)
and tasks (PDF)
(BCSG) Roundtable: Discussion on pre-selection
of
materials
R. Assmann: Principle of a more robust and operationally simpler
collimation
system
13/9/02 R.
Assmann: The
LHC Collimation System (PDF)
(MAC - cancelled)
28.8.02 M.
Brugger:
Recent experimental tests for various materials (PDF)
(BCSG) M. Brugger: Scattering angles and
momentum loss
from FLUKA
3.7.02
R.
Schmidt, J.B. Jeanneret: Plans for abort gap cleaning
(BCSG) R. Assmann, D. Kaltchev: Status of
comparison for
simulation codes (PDF)
R. Assmann: First efficiency results with SixTrack and full error model
(PDF)
19.6.02 R.
Assmann: LHC Quench Limit with
Adjusted Collimator Jaws (PDF)
(LCC)
19.6.02 V.
Kain: Magnet Failure Impact (PDF)
(BCSG) E. Gschwendtner: BLM Longitudinal Loss
Profile
for Tertiary Halo (PDF)
F. Schmidt and F. Zimmermann: Model for Halo Diffusion Speed/Amplitude
Growth (PDF)
M. Lamont: Operational Requirements on Emittance Measurement from
Collimation
4/6/02 R. Assmann:
Requirements and Design Criteria for the LHC Collimation System (PDF)
(EPAC02)
8.5.02 Round-table: Progress reports on ongoing activities
24.4.02 L.
Bruno: Test case on LHC collimators
(PDF)
(BCSG) I. Baishev: Informal discussion of
scattering
processes (PDF)
10.4.02
Roundtable discussion
(BCSG)
10.4.02 J.B. Jeanneret: Definition of
the LHC
Aperture (PDF)
(LCC)
13.3.02 V. Kain:
Update on Studies for Magnet
Failures (PDF)
(BCSG) R. Assmann: Erratic beam dump with
detailed
kicker pulse (PDF)
R. Assmann: Single and multi-turn cleaning properties (PDF)
D. Kaltchev: Preliminary tracking results for the momentum cleaning (PDF)
6.3.02 J.B. Jeanneret: Why
change
something to the LHC collimation system? (PDF)
(MARIC)
20.2.02 E.
Gschwendtner: Showering Studies for
BLM's (PDF)
(BCSG) M. Brugger: Plans for Dose Studies (PDF)
J.B. Jeanneret: Input definition for EST damage studies
30.1.02 R.
Assmann: CERN
Meeting on Absorbers and Collimators for the
LHC
(LCC) Beam on 25.1.02 Preliminary
Summary (PDF)
22.1.02
Preparation meeting for LHC collimation
day
(BCSG)
12.12.02 T. Kurtyka: Plans
for
detailed damage studies
(BCSG) Round-table: Brainstorming session on
expected
beam deposition at collimators
5.12.01 R. Assmann, G. Burtin, J.B.
Jeanneret,
R. Schmidt: Announcement CERN Meeting (PDF)
(LCC)
28.11.01 R. Assmann and
J.B. Jeanneret: Input from the BI
Review for LHC Collimation (PDF)
(BCSG) R. Assmann: Preliminary working plan (PDF)
19.11.01 J.B. Jeanneret: A Preliminary
Specification for
the Collimation System of the LHC (PDF)
(BIREV) G. Burtin: LHC Collimators - Mechanical Point
of View
(PDF)
R. Assmann: Status of the LHC Beam Cleaning Study Group (PDF)
7.11.01 R. Assmann: Report from the
LHC Beam
Cleaning Study Group (PDF)
(LCC) J.B. Jeanneret: Safe
beams
without collimation (PDF)
7.11.01 J. Wenninger: LHC orbit
feedback (PDF)
(BCSG) V. Kain: Preliminary beam loss studies (PDF)
J.B. Jeanneret: Survey, Collective Effects and Thermal Studies (PDF)
5.11.01 R. Assmann: Collimation
efficiency
versus collimation depth (PDF)
(OTM)
24.10.01 R. Assmann: Collimation efficiency versus
length (PDF)
(BCSG) D. Kaltchev: Move of Q7 in cleaning
insertion
B. Dehning: Collimation counting rates (PDF,
PPT)
10.10.01 G. Burtin: Present collimator design (technical
drawings, list)
(BCSG) M. Lamont: Views on LHC operation with
collimators (PDF,
PPT)
26.09.01 R. Assmann: Simulations for LHC
collimation robustness (PDF)
(BCSG)
Abbreviations:
| BCSG | = | Beam Cleaning Study Group (until 12/2002) |
| CWG | = | Collimation Working Group (former BCSG) |
| LCC | = | LHC Commissioning Committee (until 12/2002) |
| LTC | = | AB LHC Technical Committee |
| OTM | = | Optics Team Meeting |
| BIREV | = | Beam Instrumentation Review 2001 |
| ABPF | = | Accelerator Beam Physics Forum |
| TB | = | Technical Board LHC |
| LEMIC | = | LHC Experiments Machine Interface Committee |
4.6.02 R. Assmann:
Requirements and
Design Criteria for the LHC Collimation System (PDF)
(EPAC02)
April 02 J.B. Jeanneret: Beam Loss and
Collimation at
LHC (PDF)
(ICFA-HB2002)
Sep 01 R. Assmann: Simulations for LHC
collimation robustness (PDF)
(APAC01)
R. Assmann, SL-AP,17 Oct 2008