N-TOF EAR2 - Vertical beam design & construction - Irradiation facility proposal S. Girod EN-EA
Before n_TOF EAR2
N_TOF EAR2 (b. 380) Dump Services CV + EL Experimental area ‘’class A’’ -150 Pa Preparation area + racks -100 Pa -50 Pa SAS
Integration Building supported on ISR wall & 4 pillars Pit ISR service gallery ISR8 TT2A access TT2A
N_TOF EAR2 beam line 26 m Dump EAR2 B.380 19 m Experimental area 16 m Collimator 2 N_TOF EAR2 beam line New pit 2 Filter box ISR service gallery 11 m Permanent magnet 9 m 1st collimator Concrete shielding Pit 1 Vac chamber 1 0 m TT2A N_TOF target
EAR2 beam axis definition Vacuum aperture Ø320
Vacuum window Thickness 1.5 mm, Al alloy 6082 Vacuum: 1 mbar Reference point Air gap 10 mm
Centring for vacuum chamber 1
Concrete tap in pit 1 4 concrete blocks with mineral fiber reinforcement Complex molding chape Remote handling Gap 40 mm to piping and EAR2 vacuum chamber Monorail axis direction
Vacuum chamber 1 installation beam length 28 m Vacuum chamber 1 installation
Service gallery Removable rail Filter box 8 material Sweeping magnet Bricks shielding Collimator 1 Air tight cover
New pit 2 B4C core 8kg collimator polyboron. 0.3t Gap 60 mm Filled with st steel balls 3.5t Gap 1mm 4 chicanes Inner collimator Steel 2t Vacuum vessel Steel 4.4t 2 valves for balls release Concrete cylinder 1t
Experimental area Lead Lead
Experimental area Modular vacuum chambers 3 aligned pillars Support plate for detector with iso positioning
Gap filled with concrete Poly boron Dump Window Al 2mm Concrete 66 t Lead B4C Poly boron Vacuum chamber Gap filled with concrete Steel 31 t Concrete block Alignment suppport
N_TOF irradiation proposal 1 Mobile shielding on n_TOF target -Tricky remote handling of the samples - Only possible during technical stops Rejected Target Irradiated samples Mobil shielding
Pneumatic transport proposal Fully confined, fast, reliable, cheap
Pneumatic transport parameters Diameter up to Ø500 mm (Ø25 to Ø160 most common) Load capacity up to 50 kg (depending of Ø) Splitter- divider system Both way possible: blower / sucker mode RFID tracking Carrier Turbine Divider
Routing N_TOF target to ‘’class A ‘’ lab EAR2 (b. 380) Distance: ~115 m EAR2 Preparation area Divider
Irradiation tubes – top view 6x DN 50 Mobile shielding Mobile shielding 1x DN 200
Irradiation tubes – top view 45° 0° 90° 10° 3x DN 50 R620 mm TFT beam Tube for target endoscopic inspection 3x DN 50 Upgrade possible inside vacuum S. Girod EN-EA
Irradiation tubes – side view Moderator tank
Outside b. 380 - Inside b.380 1x DN50 1x DN 200 1x DN 200 air return
Thanks to Vincent Clerc for 3d studies, integration, drawing…
Thank you for your attention