1. M.Jonker CTC-20100601-MPO-WG status

2. MPO-WG status Small group of people.
For many members MP (or even CLIC) is not their main activity.
Meetings
16 meetings
19 May – present
unfortunately not very regulars

3. Topics addressed in meetings
CLIC layout
LHC machine protection
LHC BLM system, extrapolated for CLIC
Beam Dynamics, faults studies
RF Structures, faults and operational aspects
MDI implications
Implication for and from damping rings.
Radiation levels in CLIC main tunnel
Safe Beam generation
Power Converter implications
BLM specifications
Rehearsals of presentations, follow up
IPAC, CDR

4. Produced CLIC ACE CLIC seminar Radiation levels in CLIC main tunnel
BLM specification requirements
Powering implications (availability, Mp issues)
Studies for magnet powering
TE-MPE seminar
IPAC’10 papers

5. Future topics
Opportunities in CTF3 for testing Machine Protection and Operations
Inventory of available equipment (problem detection)
Inventory of possible intensity ramp-up procedures.
Requirements for kicker protections
Masks for protecting septa
DR extraction, combiner rings, DB turn-around
Effects on radiation on electronic equipment
MP implications from DB linac
Follow up of Damping ring implications (emittance control)
Follow up of RF structures implications (Switching procedures)
Follow up of Beam Dynamics implications
Implications of MP on beam steering (feedback, alignment, …)
Collimator protection
Fault analysis
Operational availability …

6. CTC work packages definitions
WP Name
WP description
CLIC linkperson
CLIC-CTC-MPE
CLIC Machine Protection and Electrical Integrity studies
M.Jonker
  tasks
  deliverable
  time span
collaboration (established or potential)
overall proposal of a CLIC MP scenario based on pulse to pulse permit and passive protection
engineering study
detailed specifications based on computer simulations for MPS subsystems (controls, PC, BI, kickers, dumps…
detailed specifications
2011
prototyping of MPS equipment, radiation qualification of components
CTF3-MPE
CTF3 Machine Protection and Electrical Integrity
tasks
Deliverable
time span
collaboration
implementation of a scaled down CLIC MPS in CTF3 and validation of general principles
prototyping of CLIC BLMs in CLEX
qualified prototypes

7. Machine protection in other work packages
TE-ABT:
specification of masks to protect against kicker failures.
Internal emergency dumps
EN-STI
Implementation and materials for protective masks and internal dumps

8. Staffing Fellow (Candidate: Carlos Maidana) Collaborator in TE-MPE-MI
People participating in MPWG are not fully implicated in MP (or CLIC).
Need a larger core of people working on MP issues
Other members
Fellow (Candidate: Carlos Maidana)
Discussion with candidate (Rudiger Schmidt, Daniel Schulte, Michael Jonker) on 8th or 17th of June
Simulation of failure scenarios, operational procedures
Collaborator in TE-MPE-MI
Prototype for machine protection in CTF3
Will initially work with Bruno Puccio on LHC issues
Prepare work for CTF3
To be followed up
BLM for CLIC (M.Sapinski will start on a different job)
Radiation issues (S.Mallow T.Otto)

9. MP Workshop Machine Protection and Operations workshop
Duration: Three days.
Date: October Linked to the (i.e. before) ILC-CLIC workshop?
Objectives: Review the CDR and program up to the TDR
Participants from:
Beam dynamics experts
Structures experts
Kickers and beam transfer experts
Detector interface experts
Interlock and controls experts
Instrumentation
Collimators and material experts
Institutes: CLIC, ILC, Light sources, Desy, LHC
Program
Parameters of CLIC
Protection issues
Interlock systems
Operational aspects
Topics:
Fault studies
Fast failures
Equipment failures
Slow drifts
Risk analysis
Requirements for fixed masks (in flight protection)
Interlock systems
Safe by construction
Post Pulse analysis
Beam Loss detection
Fault Detection and instrumentation
Material Damage
Operational procedures
Fast emittance control
MP with beam based feedback
Availability issues