Name: Beam Losses and Collimators in Transfer Lines
Start: 2014-05-13T08:30:00+02:00
End: 2014-05-14T15:00:00+02:00
Location: ESS AB

Beam Losses and Collimators in Transfer Lines

from Tuesday, 13 May 2014 (08:30) to Wednesday, 14 May 2014 (15:00)

Monday, 12 May 2014
Tuesday, 13 May 2014

09:15 Taxi: StayAt -> ESS
Taxi: StayAt -> ESS
09:15 - 09:30
Room: Linneasalen
10:00 Welcome: Introduction and aim of the meeting - Heine Thomsen (ISA, Aarhus University)
Welcome: Introduction and aim of the meeting
- Heine Thomsen (ISA, Aarhus University)
10:00 - 10:10
Room: Linneasalen
10:10 Status of the ESS Accelerator - Mohammad Eshraqi (European Spallation Source ESS AB)
Status of the ESS Accelerator
- Mohammad Eshraqi (European Spallation Source ESS AB)
10:10 - 10:30
Room: Linneasalen
10:30 The ESS HEBT Beam Physics: Collimator Opportunities & Requirements - Heine Thomsen (ISA, Aarhus, Denmark)
The ESS HEBT Beam Physics: Collimator Opportunities & Requirements
- Heine Thomsen (ISA, Aarhus, Denmark)
10:30 - 10:55
Room: Linneasalen
10:55 ESS collimator requirements: Sensitive components and activation - Thomas Shea (ESS)
ESS collimator requirements: Sensitive components and activation
- Thomas Shea (ESS)
10:55 - 11:20
Room: Linneasalen
11:20

11:20 - 11:30
Room: Linneasalen
11:30 Beam losses and collimators at the Oak Ridge Spallation Neutron Source - Michael Plum (ORNL/SNS)
Beam losses and collimators at the Oak Ridge Spallation Neutron Source
- Michael Plum (ORNL/SNS)
11:30 - 12:00
Room: Linneasalen
12:00 Structure and Operation of the Collimator System in J-PARC 3-50BT Line - Masashi Shirakata (KEK)
Structure and Operation of the Collimator System in J-PARC 3-50BT Line
- Masashi Shirakata (KEK)
12:00 - 12:30
Room: Linneasalen
12:30 Lunch
Lunch
12:30 - 13:30
Room: Inspira Restaurant
13:30 Transport of the 1.4 MW Beam at the PSI Proton Accelerator - Davide Reggiani (PSI)
Transport of the 1.4 MW Beam at the PSI Proton Accelerator
- Davide Reggiani (PSI)
13:30 - 14:00
Room: Linneasalen
14:00 Design and performance of the copper collimator KHE2 in the 590 MeV beam line at PSI - Daniela Kiselev (PSI)
Design and performance of the copper collimator KHE2 in the 590 MeV beam line at PSI
- Daniela Kiselev (PSI)
14:00 - 14:30
Room: Linneasalen
14:30 Collimators at FAIR - Lars Bozyk (GSI / FAIR)
Collimators at FAIR
- Lars Bozyk (GSI / FAIR)
14:30 - 15:00
Room: Linneasalen - Overview about FAIR - Collimators in the high energy beam transport lines (current status, strategies) - Beam stopper in the high energy beam transport lines, to prevent accidential beam in areas with people access - Cryogenic Collimators in the synchrotron
15:00 Coffee break
Coffee break
15:00 - 15:30
Room: Linneasalen
15:30 Collimation design considerations at CERN - Roderik Bruce (CERN)
Collimation design considerations at CERN
- Roderik Bruce (CERN)
15:30 - 16:00
Room: Linneasalen Collimation systems are installed for different purposes, and different considerations have to be made depending on the application and the machine. This talk gives an overview of some design constraints that have to be taken into account when designing collimation systems, for example for the LHC at CERN. Examples of different considerations include betatron and momentum collimation, movable versus fixed devices, multi-stage and choice of materials. Some of the simulation tools used at CERN will also be briefly mentioned, as well as techniques for monitoring beam losses.
16:00 Overview of Present and Upgraded SPS-to-LHC Collimation System - Alessio Mereghetti (UMAN and CERN)
Overview of Present and Upgraded SPS-to-LHC Collimation System
- Alessio Mereghetti (UMAN and CERN)
16:00 - 16:30
Room: Linneasalen The nominal operation of the LHC foresees injection of beams capable of damaging Transfer Line (TL) and LHC equipment if uncontrolled losses occur. The SPS-to-LHC TLs are thus equipped with a passive protection system: a set of collimators (TCDIs) aimed at intercepting particles with large amplitude and/or mis-steered beams. An overview of the present system is given, with particular emphasis on operational aspects and experience: accurate procedures for beam based alignment of collimators and setup validation, dedicated system of interlocks for jaw positioning and overall collimator functionality, issues encountered during operation and improvements. In view of the improved beam brightness foreseen by the LHC Injectors Upgrade (LIU) and High Luminosity LHC (HL-LHC) projects, the upgrade of the system is presently under study. Main design challenges, simulation tools and results are summarised: system layout and phase coverage including geometrical uncertainties, choice of suitable materials able to stand the head load and provide sufficient attenuation, protection of downstream devices.
16:30

16:30 - 17:00
Room: Linneasalen

17:15 Taxi: ESS -> StayAt
Taxi: ESS -> StayAt
17:15 - 17:30
Room: Linneasalen

19:00 Dinner
Dinner
19:00 - 21:00
Room: Second floor
Wednesday, 14 May 2014

08:15 Taxi: StayAt -> ESS
Taxi: StayAt -> ESS
08:15 - 08:30
Room: Linneasalen
08:45 Collimators: Relations to MPS - Annika Nordt (European Spallation Source)
Collimators: Relations to MPS
- Annika Nordt (European Spallation Source)
08:45 - 09:15
Room: Linneasalen
09:15 Remote handling and other technical details - Peter Ladd Ladd (European Spallation Source)
Remote handling and other technical details
- Peter Ladd Ladd (European Spallation Source)
09:15 - 09:30
Room: Linneasalen
09:30 Coffe break
Coffe break
09:30 - 10:00
Room: Linneasalen
10:00 ESS collimator status: fixed collimator - Karol Szymczyk (NCBJ, Swierk)
ESS collimator status: fixed collimator
- Karol Szymczyk (NCBJ, Swierk)
10:00 - 10:30
Room: Linneasalen
10:30 ESS collimator status: Movable collimators - Piotr Warzybok (NCBJ, Swierk)
ESS collimator status: Movable collimators
- Piotr Warzybok (NCBJ, Swierk)
10:30 - 11:00
Room: Linneasalen
11:00

11:00 - 12:00
Room: Linneasalen

12:00 Lunch + departure for CPH
Lunch + departure for CPH
12:00 - 13:00
Room: Inspira Restaurant

13:15 Taxi: ESS -> Lund Central Station
Taxi: ESS -> Lund Central Station
13:15 - 13:30
Room: Linneasalen