LHC QPS Review Committee

from Tuesday, February 24, 2009 (8:00 AM) to Thursday, February 26, 2009 (6:00 PM)
CERN

        : Sessions
    /     : Talks
        : Breaks
Feb 24, 2009
Feb 25, 2009
Feb 26, 2009
AM
8:30 AM
Executive session (until 8:45 AM) (6/2-004)
8:45 AM
Introduction (until 9:00 AM) (6/2-004)
9:00 AM
Summary talks (until 1:00 PM) (6/2-004)
9:00 AM How all the systems are working together (30’+15') (Powering interlocks for the LHC) - Markus Zerlauth   (6/2-004)
Slides
9:45 AM Summary of the 34 event (30’+15') - Pierre Strubin   (6/2-004)
Slides
10:30 AM --- coffee break ---
10:45 AM Busbar joint stability (30’+15') - Arjan Verweij   (6/2-004)
Slides
11:30 AM Busbar quench protection enhancement (20’+10') - Knud Dahlerup-Petersen   (6/2-004)
document
Slides
8:30 AM
Individual short presentations/discussions addressing panel questions (until 5:30 PM) (30/5-039)
8:30 AM Symmetric quench experience and planned solution (20’+10') - Reiner Denz   (30/5-039)
Slides
9:00 AM Are there any other superconducting busses not being monitored by a quench detection system: the diode area - Michael Koratzinos   (30/5-039)
Slides
9:15 AM Are there any other superconducting busses not being monitored by a quench detection system: 13kA & 6kA & 600A - Robert Henry Flora   (30/5-039)
Slides
9:40 AM Mechanical details of the bypass diodes - Knud Dahlerup-Petersen   (30/5-039)
9:55 AM How were the diodes tested prior to installation - Andrzej Siemko   (30/5-039)
Slides
10:10 AM Stresses on diode joints - Knud Dahlerup-Petersen   (30/5-039)
10:30 AM --- coffee break ---
10:50 AM Effects of standard component failures as well as radiation damage on the operation of the QPS (fail safe or not). What design features make the system fail safe? Details on the detection circuits. - Reiner Denz   (30/5-039)
Slides
11:20 AM What limits the maximum negative di/dt for the magnet systems - Hugues Thiesen   (30/5-039)
11:40 AM Which experiences have been gained from the accident with respect to the expected behaviour of the existing QPS. Did everything react as designed? Did quenches propagate along the magnet chain due to transients and sudden current changes? - Sandrine Le Naour   (30/5-039)
Slides
12:10 PM MI^2T limits for magnets, what are they and how where they developed. Time budgets for detection and energy extraction for the various magnet system. - Andrzej Siemko   (30/5-039)
Slides
12:40 PM --- lunch ---
2:00 PM Description of energy extraction components and design criteria - Knud Dahlerup-Petersen   (30/5-039)
Slides
2:15 PM How does electromagnetic noise (from environment and beam) affect the novel protection circuits for bus bar splices? - Robert Henry Flora   (30/5-039)
Slides
2:30 PM Reserve   (30/5-039)
2:45 PM Procedures used and the resulting traveler associated with the failed busbar joint. Ultrasound tests of joints. - Paolo Fessia   (30/5-039)
3:00 PM Stresses on busbar joints. - Paolo Fessia   (30/5-039)
Slides
3:15 PM QPS commissioning plan. Quality assurance during the installation of the new quench detection systems. - Fabio Formenti   (30/5-039)
3:30 PM Schedule foreseen for the completion of the new Enhanced QPS system - Fabio Formenti   (30/5-039)
3:50 PM How does standard component failure effect the operation of the QPS? In particular, what will happen in case of a mains power loss? Does the system rely on the proper functioning of a UPS system? Is the redundancy system properly designed on all levels? - Knud Dahlerup-Petersen   (30/5-039)
Slides
4:10 PM --- coffee break ---
4:30 PM Reserve   (30/5-039)
8:30 AM
Day reserved for follow-up questions and panel report preparation. (until 5:00 PM) (30/5-039)
PM
12:30 PM --- Lunch ---
2:00 PM
Attend summary sessions of the LHC Performance Workshop (until 3:30 PM) (500/1-001 - Main Auditorium)
agenda
3:45 PM --- transport from main building (steps) to bldg. 30 ---
4:00 PM
Executive session (until 5:30 PM) (30/5-039)
5:30 PM
Discussion of agenda for Wednesday (until 6:30 PM) (30/5-039)
5:00 PM
Executive Session (until 6:00 PM) (30/5-039)
8:00 PM --- Dinner Auberge Communale de Meyrin ---
3:00 PM Summary and preliminary recommendations - Jay Theilacker   ()
Slides