Proposal 1703 TDISTZM WP 14 TDIS jaw validation

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Proposal 1703 - TDIS-TZM WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018

Proposal 1703 - TDIS-TZM WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 David Carbajo Perez (STI-TCD), Mark Butcher (STI-ECE), Marco Calviani (STI-TCD), Matthias Immanuel Frankl (STI-FDA), Luca Gentini (MME-EDS), Inigo Lamas (STI-TCD), Anton Lechner (STI-FDA), Antonio Perillo-Marcone (STI-TCD), Regis Seidenbinder (STI-TCD)

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background - Motivation Object

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background - Motivation Object of study Testing aim Experiment details Instrumentation to be installed Post Irradiation Examination Conclusions 2017/09/15 David Carbajo Perez (STI-TCD) 2

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Motivation •

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Motivation • The upgrade of the LHC aiming at a 10 times higher integrated luminosity brings new challenges also for the whole injection system. 2017/09/15 David Carbajo Perez (STI-TCD) 3

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Motivation •

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Motivation • The upgrade of the LHC aiming at a 10 times higher integrated luminosity brings new challenges also for the whole injection system. • As part of the injection protection equipment, the current TDI must be upgraded to a higher energy absorption capacity. 2017/09/15 David Carbajo Perez (STI-TCD) 4

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Motivation •

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Motivation • The upgrade of the LHC aiming at a 10 times higher integrated luminosity brings new challenges also for the whole injection system. • As part of the injection protection equipment, the current TDI must be upgraded to a higher energy absorption capacity. • FEA simulations reveal high thermomechanical loads on certain components of the jaw in case of beam impact empirical validation of the design needed! 2017/09/15 David Carbajo Perez (STI-TCD) 5

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Present TDI

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – Present TDI gth Active len ing) r e p a t g n ludi 4. 2 m (inc Jaw SS support beam Ion pump Injected beam 2. 8 m Graphite R 7550 (6 blocks) 0. 6 m Al. 5083 0. 7 m Cu. Cr 1 Zr nsiti a r t g n i d u m (incl 5. 6 h t g n otal le T 2017/09/15 ons) TDI longitudinal cross-section view David Carbajo Perez (STI-TCD) 6

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – TDIS 565

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Background – TDIS 565 m 1 x 3 ( m 4. 7 gth Active len tanks) 3 ( s e l u d 3 mo m) Ion pump Injected beam 0. 9 m Ti-6 Al-4 V 0. 7 m Cu. Cr 1 Zr 2017/09/15 Low Z jaws (2 blocks of graphite R 7550 per jaw) • Segmented design with 3 modules-chambers • New collimator-like jaw concept TDIS longitudinal cross-section view David Carbajo Perez (STI-TCD) 7

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study: complete

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study: complete TDIS jaws with special focus on the back-stiffener Table 1 - Main elements of TDIS jaw Component Name Material Spring support plate Stainless steel 304 L EN 1. 4306 Compression spring Stainless steel EN 1. 4310 Cooling pipes support Stainless steel 304 L EN 1. 4306 plate Cooling circuit Copper Alloy CW 008 A Back-stiffener Molybdenum Alloy TZM Clamp Titanium Alloy Ti 6 Al 4 V Absorbing block Graphite R 7550 2017/09/15 TDIS Jaw cross-section view David Carbajo Perez (STI-TCD) 8

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study: complete

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study: complete TDIS jaws with special focus on the back-stiffener Component Name Material Back-stiffener Molybdenum Alloy TZM m m 5 56 1 Additionally a solution made out of aluminum alloy 2219 T 6 will be tested. This option brings some advantages: - Less weight (4, 3 kg vs 15, 3 kg ) - Lower cost (around 60% cheaper) 2017/09/15 David Carbajo Perez (STI-TCD) 9

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study Ion

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study Ion pumps / NEG cartridges • Jaws will be installed inside one TDIS module to be mounted onto HRMT interface table. Vacuum vessel Mechanical table Jaw RF screen Support Not required for the experiment 2017/09/15 David Carbajo Perez (STI-TCD) 10

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study Ion

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study Ion pumps / NEG cartridges Vacuum vessel Mechanical table Jaw RF screen Support Not required for the experiment 2017/09/15 David Carbajo Perez (STI-TCD) 11

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study Ion

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Object of study Ion pumps / NEG cartridges Vacuum vessel Mechanical table TZM Jaw RF screen Support Aluminum alloy 2219 Not required for the experiment 2017/09/15 David Carbajo Perez (STI-TCD) 12

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • Ultimate

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • Ultimate goal: To reproduce a state of temperature/stresses in the back-stiffener comparable to that induced by the worst-case potential impact of the HL-LHC beam: Real failure scenario (worst-case) HL-LHC beam Impact parameter: 38 mm Intensity: 2. 3 E 11 ppb (320 bunches) Impact parameter 2017/09/15 David Carbajo Perez (STI-TCD) 13

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • Ultimate

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • Ultimate goal: To reproduce a state of temperature/stresses in the back-stiffener comparable to that induced by the worst-case potential impact of the HL-LHC beam: Real failure scenario (worst-case) HL-LHC beam Impact parameter: 38 mm Intensity: 2. 3 E 11 ppb (320 bunches) Testing scenario HRMT beam Impact parameter: 52 mm Intensity: 1. 2 E 11 ppb (288 bunches) Impact parameter 2017/09/15 David Carbajo Perez (STI-TCD) 14

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing scenario Testing aim

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing scenario Testing aim Real failure scenario (worst-case) Several Fluka simulation loops were conducted to find out the right parameters to achieve in the experiment a comparable energy deposition in the stiffener than in the real case: 2017/09/15 David Carbajo Perez (STI-TCD) 15

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • According

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • According to FEA simulations the defined test settings should lead to reasonably similar peak temperatures/stresses at the back-stiffener than in the real case: Real Case Max. T: 215 °C HRMT settings Max. T: 235 °C Beam 2017/09/15 David Carbajo Perez (STI-TCD) Map of thermomechanical loads on this face of the back-stiffener 16

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • According

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Testing aim • According to FEA simulations the defined test settings should lead to reasonably similar peak temperatures/stresses at the back-stiffener than in the real case: Real Case Max. stress: 443 MPa ( < Rp 0. 2 = 515 MPa) HRMT settings Max. stress: 461 MPa (< Rp 0. 2 = 515 MPa) Beam 2017/09/15 David Carbajo Perez (STI-TCD) Map of thermomechanical loads on this face of the back-stiffener 17

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Experiment details Beam parameters

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Experiment details Beam parameters Particle type Pulse intensity (range) No. bunches Intensity/bunch Spot size Number of pulses Desired timeslot for the experiment: end of summer 2018 protons 3. 5 x 1013 288 1. 2 x 1011 sigma_x = sigma_y = 1000 um < 10 (5 per jaw) + single bunch nominal intensity shots for alignment Experimental Setup Measurement/observation tools Supply needs Cooling water (Flow: < 0. 5 m 3/h, Pressure: < 15 bar) Power supply for mechanical tables Primary vacuum Safety and radiation protection aspects General Safety Tank under primary vacuum to prevent any risk of oxidation during high-intensity beam impact on the absorber blocks (graphite). Radiological risk Residual dose rates not expected to be very much different from the estimations done for HRMT 28. Contamination risk No contamination expected either during radiation or during handling No risk of contamination outside of the tank, nor inside the tank, since the graphite has been already validated at these beam parameters. 2017/09/15 David Carbajo Perez (STI-TCD) 18

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Instrumentation to be installed

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Instrumentation to be installed • Rosette strain gauges / Fiber optic strain gauges* • PT 100 / Fiber optic temperature sensors* • Radiation resistant cameras for online visual inspection of the jaws • Beam loss / position monitoring * Measurement based on the Fiber Bragg Grating principle: https: //www. hbm. com/en/4596/what-is-a-fiber-bragg-grating/ 2017/09/15 David Carbajo Perez (STI-TCD) 19

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Post Irradiation Examination Two

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Post Irradiation Examination Two main investigations initially foreseen to be conducted on the back-stiffener and other main components of the jaw : • Metrology analysis • Ultrasounds inspection 2017/09/15 David Carbajo Perez (STI-TCD) 20

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Conclusions • TDIS key

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 Conclusions • TDIS key equipment of the HL-LHC injection system • Equipment core (jaws) to be validated from thermomechanical point of view • HRMT experiment results expected to confirm the robustness of the jaw vs beam impact • Test with low radiological / contamination risk • Proposed date for the experiment: end of summer 2018 2017/09/15 David Carbajo Perez (STI-TCD) 21

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 THANKS FOR YOUR ATTENTION

WP 14 TDIS jaw validation testing Hi. Rad. Mat 2018 THANKS FOR YOUR ATTENTION