1. Hl-Lhc Triplet FSI target

2. Target on short support
Ball clamping
spring (3D printed)
Glass ball reflector
Heat reception plate
(Al, colloidal graphite painted)
MLI „colorette”
Target on short support
Insulator 3D printed
Impact protection
ring (3D printed, used also to attach the cold mass MLI from outside)
Internal reflection layer COOLCAT BR-50 (reflects the radiation emitted from insulator support backward)
Heat transfer route
Heat transfer route
Target on long support

3. Upper targets – LONG support
MLI finish
MLI finish
Groove for cold mass
curvature and support orientation set-up

4. Lower targets – SHORT support
MLI finish
MLI finish
Groove for cold mass
curvature and support orientation set-up

5. Targets supports integration (side cryosyostat targets):
- For design purposes, glass ball position shall be integrated 9.9mm/2=4.45mm towards cryostat end from the glass ball – flange axis intersection.
Cold mass contraction coefficient 2.94mm/m (300K -> 2K) -> Expected contraction: 3.352m x 2.94mm = 9.9mm
Tooling:
- Inox 304L support + Dummy target with BMR for support welding
9.9mm
4.45mm

6. Cold mass radius
Always towards
cryostat end
Groove for cold mass
curvature and support orientation set-up
Supports positioned always with single threaded hole (over the middle of the groove) towards cryostat end

7. Target support + insulated target (long version):
Target support (long version):
Target support + BMR (long version):

8. Thermal shield masking plates
Thermal shield contraction: 4.15mm/m (300K -> 2K) -> 3.352m x 4.15 = 13.9mm
Cold mass contraction 2.94mm/m (300K -> 2K) -> 3.352m x 2.94mm = 9.9mm
Difference 13.9 – 9.9 = 4mm (shift of thermal shield hole vs. insulated target).

9. Thermal shield contraction: 4.15mm/m (300K -> 2K) -> 3.352m x 4.15 = 13.9mm
Cold mass contraction 2.94mm/m (300K -> 2K) -> 3.352m x 2.94mm = 9.9mm
Difference 13.9 – 9.9 = 4mm (shift of thermal shield hole vs. insulated target).