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Challenges for the low level RF design for ESS

Johansson, Anders J LU and Zeng, Rihua LU (2011) IPAC 2011 p.460-461
Abstract
The European Spallation Source (ESS) is a planned neutron

source to be built in Lund, Sweden, which is planned

to produce the first neutrons in 2019. It will have an average

beam power at the target of 5 MW, an average current

along the linac of 50 mA, and a pulse repetition rate and

length of 20 Hz and 2.86 ms, respectively. The linac will

have around 200 LLRF stations employed to control a variety

of RF cavities such as RFQ, DTL, spoke and elliptical

superconducting cavities. The challenges on LLRF systems

are mainly the high demands on energy efficiency on

all parts of the facility, an operational goal of 95% availability

of the facility... (More)
The European Spallation Source (ESS) is a planned neutron

source to be built in Lund, Sweden, which is planned

to produce the first neutrons in 2019. It will have an average

beam power at the target of 5 MW, an average current

along the linac of 50 mA, and a pulse repetition rate and

length of 20 Hz and 2.86 ms, respectively. The linac will

have around 200 LLRF stations employed to control a variety

of RF cavities such as RFQ, DTL, spoke and elliptical

superconducting cavities. The challenges on LLRF systems

are mainly the high demands on energy efficiency on

all parts of the facility, an operational goal of 95% availability

of the facility and a comparably short time from

start of final design to commissioning. Running with long

pulses, high current and spoke cavities also brings new

challenges on LLRF design. In this paper we will describe

the consequences these challenges have on the LLRF system,

and the proposed solutions and development projects

that have started in order to reach these demands. (Less)
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author
organization
publishing date
type
Contribution to conference
publication status
published
subject
pages
3 pages
conference name
IPAC 2011
external identifiers
  • Scopus:84885775202
language
English
LU publication?
yes
id
1646c57a-f17e-4094-812a-50752d5464ce (old id 2173831)
date added to LUP
2011-10-17 11:16:57
date last changed
2016-10-13 05:01:07
@misc{1646c57a-f17e-4094-812a-50752d5464ce,
  abstract     = {The European Spallation Source (ESS) is a planned neutron<br/><br>
source to be built in Lund, Sweden, which is planned<br/><br>
to produce the first neutrons in 2019. It will have an average<br/><br>
beam power at the target of 5 MW, an average current<br/><br>
along the linac of 50 mA, and a pulse repetition rate and<br/><br>
length of 20 Hz and 2.86 ms, respectively. The linac will<br/><br>
have around 200 LLRF stations employed to control a variety<br/><br>
of RF cavities such as RFQ, DTL, spoke and elliptical<br/><br>
superconducting cavities. The challenges on LLRF systems<br/><br>
are mainly the high demands on energy efficiency on<br/><br>
all parts of the facility, an operational goal of 95% availability<br/><br>
of the facility and a comparably short time from<br/><br>
start of final design to commissioning. Running with long<br/><br>
pulses, high current and spoke cavities also brings new<br/><br>
challenges on LLRF design. In this paper we will describe<br/><br>
the consequences these challenges have on the LLRF system,<br/><br>
and the proposed solutions and development projects<br/><br>
that have started in order to reach these demands.},
  author       = {Johansson, Anders J and Zeng, Rihua},
  language     = {eng},
  pages        = {460--461},
  title        = {Challenges for the low level RF design for ESS},
  year         = {2011},
}