jaw length Collimation Upgrade Specification meeting 30012015 L GENTINI Contents Overview What has changed in the lay out Preliminary design study Jaws Actuation system Vacuum tank ID: 798851
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Slide1
Updated Design of TCLD
with reduced
jaw length
Collimation Upgrade Specification meeting
30-01-2015
L. GENTINI
Slide2Contents
Overview
What
has changed
in the lay out
Preliminary design study
Jaws
Actuation system
Vacuum tank
Conclusions
Slide3Overview
YESTERDAY
TODAY
Slide4Overview
YESTERDAY
TODAY
Slide5Overview
Actuation system
“V” interconnection points.
Collimator replacement without realignment
Collimator
Support assembly
Support assembly
Collimator
Actuation system
“V” interconnection points.
Collimator replacement without realignment
Slide6jaws
BPM
cables
Extremity RF contacts
General
Active length
800 mm
Brazed jaws
4x screwed tungsten blocs each jaw (30x20x200 mm)
Tapering slopes
10˚ and
15
°
Cantilever jaws
Cooling system
Square
pipes (9 mm edge, CuNi
)
3x cooling
pipes in the central cross-section
Instrumentation
2x temperature probes (TP100) each jaw
2x Beam Position Monitor each jawBPM cables: same electrical length of TCTP with different shape
RF systemFerrite tiles + St. steel screens
BPM
800 mm
1000 mm
Old design
New design
Slide7Jaw details
Tungsten blocs
F
errite tiles
F
errite tiles
RF screens
St. Steel
RF screens
St. Steel
Bloc Support
Glidcop
Back stiffener
Glidcop
Tank axis
Cooling pipes
CuNi
40
30
20
Slide8Jaw details
BPM
Tapering
slope:
10°
RF screen
St. Steel
Tapering
slope:
15°
Screen RF contact
CuBe
C17410
Extremity RF contact
CuBe
C17410
RF contact
CuBe
C17410
Screen RF contact
CuBe
C17410
Slide9Actuation system
Movement
Two step motors each
jaw
Jaw
tilting
Stroke: -5
30 mm
Spring-back:
in case of
electrical short-cut
the jaws must not
go
in beam direction
Instrumentation
3x
LVDT
each jaw: 2x absolute movement, 1x relative movement (anti-collision
)
3x switch assemblies each jaw : 2x absolute movement, 1x relative movement (anti-collision)
Spring
Roller screw
Step motor
Axis
Movable table
Slide10Tank
Manufacturing process based on
Ph.II
tank.
Electron Beam welded Stainless Steel.
No
cooling system
NEW DESIGN OF THE EXTREMITIES
To gain some space in the lay-out, the bellows after and before the collimator will be integrated into the conical tank transitions.
Slide11conclusions
New collimator length 1280 mm
800 mm active length
255
The design is preliminary and in stand-by until
a required length will be specified
With the current design, the length cannot be
lower than 550 mm (250 mm shorter than previous design)
Lay-out of all vacuum components
still to be studied (already
now, we have a very limited
space!)
Slide12Thank you for your attention!