LINAC 4 LAYOUT

1
LINAC 4 LAYOUT SOUTH HALL OPTION
Marc Timmins Linac 4 meeting 04/09/2006
2
Linac 4 line transfer line
Longitudinal Position of the test stand is
different by 5m. (according to position of the
3Mev layout)
79m
Marc Timmins Linac 4 meeting 04/09/2006
3
Question ?

• Is it OK to shift the 3 MeV test stand back to
  its original position with the consequence of
  shifting the start point of the transfer line ?
  (smaller dipole angles)

Without moving the kicker platform
5m
5m
Marc Timmins Linac 4 meeting 04/09/2006
4
SCL
Marc Timmins Linac 4 meeting 04/09/2006
5
2 options
DUMP
LEIR visitors platform
In front of the LINAC 4 shielding
Marc Timmins Linac 4 meeting 04/09/2006
6
Travelling crane Height limit
40cm
4.6m
Marc Timmins Linac 4 meeting 04/09/2006
7
Problem of height !

• The travelling crane will not be operational
  straight above the Linac 4 shielding.
• How will the roof shielding blocks be installed ?
  ( mobile crane ?)
• If needed, how will the Linac 4 elements be
  replaced? (reducing roof height locally
  additional side access at the back of the
  shielding ?)

Marc Timmins Linac 4 meeting 04/09/2006
8
2m
Access Platform for wave guide maintenance
Marc Timmins Linac 4 meeting 04/09/2006
9
Option without air-conditioned area
Power supplies
4 vertical klystrons
14 horizontal klystrons
Control racks how many ?
Marc Timmins Linac 4 meeting 04/09/2006
10
Option with air-conditioned area
Platform 2.8m high (can be lower !) Including
closed air-conditioned area below for the power
supplies and control racks.
Marc Timmins Linac 4 meeting 04/09/2006
11
Not enough room above the shielding for the 4 SCL
wave guides so why not use the ground gutters ?
Marc Timmins Linac 4 meeting 04/09/2006
12
every 20m
Survey equipment to be installed on the other
side for access reasons.
The shielding would need to be shifted by 40cm
Marc Timmins Linac 4 meeting 04/09/2006
13
Survey area (30cm x 50cm) (must remain clear
along the line)
Collision with the wave guides
Marc Timmins Linac 4 meeting 04/09/2006
14
30cm
Free passage for the survey ( 20cm) above the
transfer line.
Marc Timmins Linac 4 meeting 04/09/2006