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MECHANICAL DESIGN OF TCSP COLLIMATORS Secondary Collimators Embedding BPMs L. GENTINI, A. Dallocchio, A. Bertarelli, F. Carra, M. Garlasche.

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Presentation on theme: "MECHANICAL DESIGN OF TCSP COLLIMATORS Secondary Collimators Embedding BPMs L. GENTINI, A. Dallocchio, A. Bertarelli, F. Carra, M. Garlasche."— Presentation transcript:

1 MECHANICAL DESIGN OF TCSP COLLIMATORS Secondary Collimators Embedding BPMs L. GENTINI, A. Dallocchio, A. Bertarelli, F. Carra, M. Garlasche

2 Luca Gentini EN/MME 30/04/2012 2/18 Guidelines for conceptual designGuidelines for conceptual design Main design features: - TCS vs. TCSP; TCTP vs. TCSPMain design features: - TCS vs. TCSP; TCTP vs. TCSP - Cooling system - Embedded BPMs - RF system (ferrite + screen) Assembly procedure: - Cooling pipes, stiffener, JAW, graphite blockAssembly procedure: - Cooling pipes, stiffener, JAW, graphite block - Brazing Present statusPresent status

3 Luca Gentini EN/MME 30/04/2012 3/18 Vacuum tank (equal to TCTP collimator)Vacuum tank (equal to TCTP collimator) Actuation system (equal to TCTP collimator)Actuation system (equal to TCTP collimator) JAW assemblyJAW assembly Clamped CFC jaw (from TCS design).Clamped CFC jaw (from TCS design). Glidcop back-stiffener + Glidcop tapering embedding BPMs (from TCTP design).Glidcop back-stiffener + Glidcop tapering embedding BPMs (from TCTP design). Cooling system (equal to TCTP collimator):Cooling system (equal to TCTP collimator): Square pipes (9 mm CuNi).Square pipes (9 mm CuNi). 2 inlet on one side, 2 outlet on the other side.2 inlet on one side, 2 outlet on the other side. 6 cooling pipes in the central cross-section.6 cooling pipes in the central cross-section. Beam Instrumentation (equal to TCTP collimator):Beam Instrumentation (equal to TCTP collimator): 2 embedded BPMs on each JAW.2 embedded BPMs on each JAW. 2 temperature probes on each JAW.2 temperature probes on each JAW. RF system (ferrite tiles + screens).RF system (ferrite tiles + screens).

4 Luca Gentini EN/MME 30/04/2012 4/18 Absorber block (AC150 2-d C/C) Jaw block (AC150 2D CFC) Plate support (Glidcop) Contact plate (Glidcop) Tensioning system: Clamps + springs + plates TCS RF system: RF contacts (CuBe C17200) TCSP RF system : screen (St.Steel 304L) + ferrite TCS cross-section TCSP cross-section Main differences: Embedded BPMsEmbedded BPMs RF systemRF system Tensioning system: Clamps + springs + plates Clamping system: clamps + springs + plates

5 Luca Gentini EN/MME 30/04/2012 5/18 TCTP cross-section TCSP cross-section RF system : screen (St.Steel 304L) + ferrite TCSP Collimator shares with TCTP the cooling system as well as the RF system (). TCSP Collimator shares with TCTP the cooling system as well as the RF system (except few details shown in next slides). RF system : screen (St.Steel 304L) + ferrite Cooling system: CuNi bent pipes Cooling system: CuNi bent pipes Cooling system: CuNi bent pipes Cooling system: CuNi bent pipes

6 Luca Gentini EN/MME 30/04/2012 6/18 The BPM is screwed on the tapering.The BPM is screwed on the tapering. Adjustment system to align the pick-upAdjustment system to align the pick-up The area around the BPM is cooled.The area around the BPM is cooled. BPM section Temperature probe Probe cable support BPM BPM adjustment system BPM adjustment system Glidcop tapering CFC Jaw

7 Luca Gentini EN/MME 30/04/2012 7/18 BPM are both on the exit flange side.BPM are both on the exit flange side. Two BPM cable supports are fixed on the RF screens.Two BPM cable supports are fixed on the RF screens. Cable layout similar to TCTP collimator →minimization of stresses on cables due to jaw movements.Cable layout similar to TCTP collimator →minimization of stresses on cables due to jaw movements. BPM cable support BPM BPM cable support BPM Cable Support ~260 mm

8 Luca Gentini EN/MME 30/04/2012 8/18 RF CONTACTS: 2x RF contacts (CuBe C17200) between graphite and tapering on each JAW.2x RF contacts (CuBe C17200) between graphite and tapering on each JAW. 4x RF contacts (CuBe C17410 with silver coating) between JAWs and vacuum tank.4x RF contacts (CuBe C17410 with silver coating) between JAWs and vacuum tank. RF contact (CuBe C17200) RF contact (CuBE C17410) RF contact (CuBE C17410) Tapering (Glidcop) Jaw block (AC150 2D CFC) Jaw block (AC150 2D CFC) Slope 16° (equal to TCTP) Slope 16° (equal to TCTP) Slope 16.5° (17.7 °for TCTP) Slope 16.5° (17.7 °for TCTP)

9 Luca Gentini EN/MME 30/04/2012 9/18 TCSP RF SYSTEM: Ferrite tiles + screensFerrite tiles + screens Equal to TCTP collimatorEqual to TCTP collimator Positioning pin Ferrite clamp (St. Steel 304L) Ferrite housing (copper with chrome oxide coating) Clamps (Glidcop) 30 mm

10 Luca Gentini EN/MME 30/04/2012 10/18 GAP 0.2 mm Ferrite tiles (equal to TCTP collimator) Screen (equal to TCTP collimator)

11 Luca Gentini EN/MME 30/04/2012 11/18 GAP 0.2mm Question for the RF Team: Is this small gap disturbing for the RF performances of the TCSP collimators? “RF trapped” volume?

12 Luca Gentini EN/MME 30/04/2012 12/18 TCSP RF SYSTEM: EXTRIMITIES RF CONTACTS Same RF contacts of phase I collimators, phase II, TCTP, etc… (CuBe C17410)Same RF contacts of phase I collimators, phase II, TCTP, etc… (CuBe C17410) Tank RF contacts (CuBe C17410 with silver coating) Tank RF contacts (CuBe C17410 with silver coating) JAW RF contacts (CuBe C17410 with silver coating) JAW RF contacts (CuBe C17410 with silver coating)

13 Luca Gentini EN/MME 30/04/2012 13/18 INLET OUTLET TCS cooling pipes TCTP/TCSP cooling pipes OPTIMIZED TCTP/TCSP COOLING SYSTEM Larger cooled area.Larger cooled area. Inlet pipes serving central region.Inlet pipes serving central region. To assure a good brazing, the under load planarity of the pipe assembly must be <0.05 mm.To assure a good brazing, the under load planarity of the pipe assembly must be <0.05 mm. Contact areas Cooled area

14 Luca Gentini EN/MME 30/04/2012 14/18 COOLING PIPES ASSEMBLY PROCEDURE X Z Y PIPE 1 PIPE 2 (Pipe 2 is fixed) 1.Insert pipe 1. 2.Put up pipe 1. 3.Rotate Pipe 1 in Y axle of 90°. 4.Move Pipe 1 in Y of around 10 mm. 5.Move pipe 1 in X of around 10 mm.

15 Luca Gentini EN/MME 30/04/2012 15/18 X Z Y BACK STIFFENER ASSEMBLY PROCEDURE Insert the back-stiffener.

16 Luca Gentini EN/MME 30/04/2012 16/18 JAW ASSEMBLY PROCEDURE 1.Brazing of back stiffener / cooling pipes / glidcop plate / tightness cups / connection sockets / probe supports. 2.Final machining of Glidcop plate. 3.Assembly the guiding plates using the machined surfaces as a reference for positioning and drilling-through. 4.Install springs and spring support plate using the screw M8x25 to compress the springs. 5.Install 2x taperings and Pick-up BPM assemblies. 6.Install 2x RF contacts. 7.Install CFC jaw bloc, the upper and bottom clamps and block them with the holding clips. 8.Remove the screw M8x25 on the back of the JAW.

17 Luca Gentini EN/MME 30/04/2012 17/18 30-04-2012Design3D modelsDrawingsControls Vacuum tank100% Actuation system100% Jaw assembly100% 20% Test and assembly tools 100%

18 Luca Gentini EN/MME 30/04/2012 18/18

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