HERA Beam Dynamics Meeting

usually on Thursdays at 10:00 in 30b/459

Visit the homepage of the HERA Low Proton Energy Run Working Group Visit the homepage for the HERA Machine Studies ! Visit the DESY Accelerator Physics Seminar Homepage !

THE HERA-II ESSENTIALS

MEETINGS :

GOTO top, 2006, 2005, 2004, 2003, earlier meetings, IMPORTANT MESSAGE, bottom.

26.04.07 MINUTES
25.01.07 MINUTES

2006 : ( up )
31.08.06 MINUTES
03.07.06 (Kuemmerer meeting) MINUTES
22.06.06 MINUTES
15.06.06 MINUTES
23.03.06
1. MINUTES
2. [F.Willeke] : Low (proton-) Energy Running / revision 2
16.03.06
1. MINUTES
2. [F.Willeke] : Low (proton-) Energy Running
19.01.06
1. MINUTES
2. [B.Holzer] : A new proton lumi optics with β_x=2.20m and β_y=0.16m
12.01.06 MINUTES (including tentative recommisioning schedule)
05.01.06 MINUTES

2005 : ( up )

22.12.05
1. MINUTES
2. [B.Nagorny] : Dipole Synchrotron Radiation at the Belows of the Spin Rotators
15.12.05
1. MINUTES
2. [S.Brinker] : Der p-TuneController
07.07.05
1. MINUTES
2. [A.Kling] : Dust Trapping in HERA-e
19.05.05
1. MINUTES
2. [E.Kot] : The Head-Tail Instability at HERA-p
24.03.05 MINUTES
03.03.05 MINUTES
24.02.05 MINUTES
10.03.05 MINUTES
02.03.05 MINUTES
27.01.05 MINUTES
20.01.05 MINUTES
13.01.05 MINUTES
06.01.05 MINUTES

2004 : ( up )

16.12.04 MINUTES
09.12.04 MINUTES
25.11.04 MINUTES
18.11.04 MINUTES
11.11.04 MINUTES
05.11.04 MINUTES
04.11.04
1. MINUTES
2. [C.Muhl (ZEUS)] : Simulation of mechanical stress & temperature distributions on the GI R07 chamber
28.10.04
1. MINUTES
2. [M.Bieler]: Schedule until 09.11.04
3. [B.Holzer] : Magnet files for e^--p operation
21.10.04 MINUTES
14.10.04 MINUTES
07.10.04
1. MINUTES
2. [M.Vogt] Evaluation of the coherent beam--beam studies before the shutdown file missing
30.09.04
1. MINUTES
2. [E.Gianfelice-Wendt] A new optic for the EL-Weg ? (ps)
15.09.04 : special meeting on shifted e^- IPs
1. MINUTES
2. [J.Keil] : Alternative Elektron Design-Trajektorien für HERA (pdf)
  alternative orbit (data directory) :
  t1_env.txt , t1_inp.txt , t1_opt.txt , t1_surv.txt , t1_magn.txt ;
09.09.04
1. [E.Kot] : Studies on longitudinal multibunch instabilities in HERA-p (file missing)
19.08.04
1. MINUTES
2. [M.Minty] : Beam-Beam Studies with Alternative e-Tunes (pdf)
12.08.04 no meeting
05.08.04 MINUTES
29.07.04 MINUTES
08.07.04 no meeting
01.07.04 no meeting
24.06.04 no meeting
17.06.04 MINUTES
Meeting on HERA improvements 16.06.04 : Diagnosis and Instrumentation (pdf)
10.06.04 MINUTES
03.06.04 MINUTES
28.05.04
1. MINUTES
2. R.Wagner : Recent measurements with PhaseLoop-1
  block diagram (pdf), p-inj : transf.1, transf.2 (pdf), transf.3, 820GeV (pdf)
21.05.04 MINUTES
Meeting on HERA improvements 18.05.04 : p-HF (pdf)
Meeting on HERA improvements 13.05.04 : Diagnosis and Instrumentation (pdf)
13.05.04 no meeting
06.05.04 MINUTES
29.04.04
1. MINUTES
2. [M.Hoffmann] : The Low Level RF Generation Device ( transparencies )
22.04.04 MINUTES
15.04.04 MINUTES
08.04.04
1. MINUTES
2. [M.Vogt] : Recent Observation of Longitudinal MultiBunch Modes in HERA-p (ps)
3. [E.Gianfelice-Wendt] : New Instructions for Polarsation Tuning (ps)
01.04.04 MINUTES
25.03.04 MINUTES
18.03.04
1. MINUTES
2. [J.Keil] : the ORM at e-lumi from 07.03.04 (compared to 12.09.2003 and 26.02.2004) (ps)
11.03.04 MINUTES
04.03.04 MINUTES
26.02.04 MINUTES
19.02.04 MINUTES
12.02.04 MINUTES
05.02.04 no meeting
29.01.04 MINUTES
26.01.04 / 16:00 / Extra meeting on Experiments on luminosity
1. MINUTES
2. [F.Willeke] : Evaluation of the lumi runs since January 1-st file still missing
3. [M.Vogt] : Evaluation of the Longitudinal Lumi Scan at H1 (08.01.04-night) (pdf)
4. ZEUS: [U.Schneekloth] Offline analysis of the lumi data & emittance measurement using the γ-spot in the spectrometer (pdf)
5. Machine Studies homepage
22.01.04
1. MINUTES
2. [F.Willeke] : Evaluation of the first 25 lumi runs at (H1) (ps) , (mathcad)
15.01.04
1. MINUTES
2. Evaluation of long. lumi scan [M.Vogt] : Figures & Files :
  - Emittances (wirescanner) :
    p/x/prelumi , p/y/prelumi ; p/x/earlylumi , p/y/earlylumi ; p/x/postmeasure. , p/y/postmeasure. ; e⁺/x/atlumi , e⁺/y/atlumi .
  - Peak L_spec and theoretical expectation :
    ε^e,y=2.9 nm , ε^e,y=3.4 nm , ε^e,y=3.9 nm .
  - Evaluation : s-dependence of lumi (normalized to one) [pdf from maple worksheet]
08.01.04
1. MINUTES
2. K.Wittenburg : (on beam-current limits for the HERA-e wire scanner) (pdf)

2003 : ( up )

18.12.03
1. MINUTES
2. M.Vogt : preliminary evaluation of ep-lumi-TuneStep4vs1
3. M.Hoffmann : transparencies to be filled in after New-Year
11.12.03 MINUTES
04.12.03
1. MINUTES
2. BHolzer : Estimates on Proton Beam Survival Timw in Case of Mini-Beta Powersupply Failures (pdf)
3. F.Willeke : Tracking simulation about p-beam survival times after a mini-beta PS-fast-dump (pdf)
27.11.03
1. MINUTES
2. R.Wagner : Block Diagram of single 208 MHz system (pdf)
3. W.Decking : status of e⁺ dispersion correction facility (pdf)
20.11.03 MINUTES
13.11.03
1. MINUTES
2. M.Hoffmann : The HERA lumi pilot (pdf)
3. M.Vogt : The HERA file system (ps)
06.11.03 MINUTES
30.10.03 no meeting
23.10.03 no meeting
16.10.03
1. MINUTES
2. F.Willeke : Orbit Effects on Synchrobetatron Resonances
3. F. Brinker : Analyse des Orbits vom 26.12.2003 00:16
09.10.03 MINUTES
02.10.03 no meeting
25.09.03
1. MINUTES
2. Polarization Optimization Guide (21.09.03, ps)
3. Current Status (regularly updated) of Polarization Optimization
18.09.03
1. MINUTES
2. Schedule for next studies : Machine Studies Homepage
3. Preliminary reults of IR-BBA (pdf)
4. ORM/e⁺ : helum72
  x (eps) , y (eps)
5. Dispersion/e⁺ : helum72
  Disp. (eps) , ΔD (eps) , ΔD/sqrt(β) (eps)
11.09.2003
1. MINUTES
2. Bake out summary (pdf)
3. Summary on HERA-e MB-FB procedures (no file yet)
04.09.2003 MINUTES
29.08.2003 MINUTES
21.08.2003 MINUTES
14.08.2003
1. MINUTES
2. new (again) recommissioning schedule and updated run schedule
3. ORM and dispersion measurement for HERA-e at injection :
  ORM/hori. , ORM/vert. , dispersion , ΔD , ΔD/sqrt(β)
4. ORM and dispersion measurement for HERA-p at injection :
  ORM/hori. , ORM/vert. , dispersion ,
07.08.2003 : no meeting
31.07.2003
1. MINUTES
2. new DETAILED recommissioning schedule
3. Preliminary evaluation of proton geometric apperture scan (automatically scanned bumps only) :
  envelope x , norm. env. x , envelope y , norm. env. y ;
  manually scanned bumps to be included later !
25.07.2003
1. MINUTES
2. new recommissioning schedule
17.07.2003
1. MINUTES
2. old (02.2003) but updated list of (accelerator physics) projetcs
3. new (07.2003) list of projetcs : (.xls) or (.ps reformatted!)
10.07.2003
1. J.Keil : Orbit Response Matrix Analysis for PETRA-e

EARLIER : ( up )

Tentative schedules of earlier meetings (thanks to M.Hoffmann)

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