PIP-II Cryomodule Overview & 650 MHz Cryomodule Development Plan - - PowerPoint PPT Presentation

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PIP-II Cryomodule Overview & 650 MHz Cryomodule Development Plan - - PowerPoint PPT Presentation

Nov 09, 2023 128 likes •297 views

PIP-II Cryomodule Overview & 650 MHz Cryomodule Development Plan S.K. Chandrasekaran, on behalf of PIP-II team In partnership with: India/DAE 650 MHz Cryomodule Design Advisory Meeting Italy/INFN UK/STFC France/CEA/Irfu, CNRS/IN2P3 23

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SLIDE 1

S.K. Chandrasekaran, on behalf of PIP-II team 650 MHz Cryomodule Design Advisory Meeting 23 October 2018

In partnership with: India/DAE Italy/INFN UK/STFC France/CEA/Irfu, CNRS/IN2P3

PIP-II Cryomodule Overview & 650 MHz Cryomodule Development Plan

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SLIDE 2

The PIP-II Project

Goals

▪ Deliver 1.2 MW of proton beam power from the Main Injector over the energy range 60 – 120 GeV, at the start of LBNF ops

─ Establish a platform for future upgrades to multi-MW capability

▪ Provide a platform for extension of capability to high duty factor/higher beam power, multiple users and reliable operations

─ Support the ongoing 8 GeV program, including an upgrade path for Mu2e

Mission

PIP-II will deliver the world’s most intense beam of neutrinos to the international LBNF/DUNE project, and enable a broad physics research program, powering new discoveries for decades to come.

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

Building the world’s most powerful neutrino beam

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SLIDE 3

Compressor System He Gas Tanks LHe Dewar Cold Box Distribution Box Cryogenic Transfer Lines Gas Header HB650 HWR SSR1 SSR2 LB650

· Tex t

Cryomodules

HWR X 1 SSR1 X 2 SSR2 X 7 LB650 X 11 HB650 X 4

PIP-II SRF Linac & Areas of International Interest

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

PIP-II is the first accelerator project in the U.S. with substantial international participation

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SLIDE 4

PIP2IT will be repurposed to PIP-II Cryomodule Test facility PIP2IT cave is being expanded to house HWR & SSR1

  • Vertical cryo transfer line for PIP2IT was installed
  • Confirmed feasibility of using PIP2IT test stand for both

650 and SSR RF testing

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 5

CM type

  • No. of

CMs Cavities Per CM Magnets Per CM Energy gain (MeV) (Current) CM style Transports HWR 1 8 8 2 Bathtub ANL to FNAL SSR1 2 8 4 2.05 Strong-back FNAL internal SSR2 7 5 3 5 Strong-back FNAL internal LB650 11 3 11.9 Strong-back CEA to FNAL HB650 4 6 19.9 Strong-back 3: STFC to FNAL 1: FNAL internal *** Totals: 25 116 37

Cryomodules Overview

*** Prototype CM assembled at FNAL, but transport tested to STFC and back

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 6

Cryomodules Overview Trans-Atlantic shipment of ~15 650 MHz CMs

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

*** Prototype CM assembled at FNAL, but transport tested to STFC and back

CM type

  • No. of

CMs Cavities Per CM Magnets Per CM Energy gain (MeV) (Current) CM style Transports HWR 1 8 8 2 Bathtub ANL to FNAL SSR1 2 8 4 2.05 Strong-back FNAL internal SSR2 7 5 3 5 Strong-back FNAL internal LB650 11 3 11.9 Strong-back CEA to FNAL HB650 4 6 19.9 Strong-back 3: STFC to FNAL 1: FNAL internal *** Totals: 25 116 37

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SLIDE 7

Available Designs for Cryomodule Mechanical Support

  • Spaceframe Design

– CEBAF, SNS, ESS

  • Top Support

– TTF, XFEL, ILC, LCLS-II

  • Bottom Support

– FRIB, PIP-II (strong back)

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 8

Alignment Configuration Concept

  • Warm Strong back support
  • Adjustable G-11 post, not accessible after assembly

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 9

Alignment Configuration Concept

  • During cool down:
  • Post stays fixed
  • Cavity anchor point

moves nearly identical

  • Dressed cavity moves

nearly identical

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

Fixed anchor point

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SLIDE 10

Cryomodule Development Path

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

SSR1-0 (prototype) SSR1-1,2 SSR2-0 (prototype) SSR2-1…7 HB650-0 HB650-1…4 LB650-0 (prototype) LB650-1…11 HWR (in progress)

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SLIDE 11

DRAFT PIP-II Cryomodule Schedule

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

Design Optimization Prototype Production Design Optimization Prototype Production Design Optimization Prototype Production Design Optimization Prototype Production SSR1 SSR2 LB650 Legend Start STC tests Start String Assembly Start RF Testing HB650 SSR1 SSR2 LB650 HB650 Calendar year

DRAFT

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SLIDE 12

LB650 Status Overview

  • Cavity RF Design completed.
  • Cavity mechanical design is in progress

– IIFC optimized the mechanical design for CW operation

  • VECC started working with the INFN bare cavity design, and

performing optimizations.

  • Two prototypes in fabrication by INFN scheduled to arrive at

Fermilab in Summer 2019

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 13

HB650 Status Overview

  • Cavity RF design completed.
  • Cavity mechanical design completed.
  • Cavity high Q R&D is in progress.
  • Dressed cavity design validation is in progress.
  • Coupler design validation is in progress.
  • Cryomodule design is in progress.

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 14

Status of 650 MHz CM design

  • Strong-back is current baseline design of the SSR & 650 CM
  • SSR1 CM design mature, and assembly soon
  • SSR1 prototype CM to validate strong-back for SRF CMs

– Expected to be approx. Q3 FY19 (Q2 CY19)

  • HB650 CM design in preliminary stage

– Design activities being performed at FNAL and RRCAT (India) – Some analyses performed – No reviews conducted yet

  • LB650 CM design in preliminary stage

– Design activities being performed at RRCAT (India) – No reviews conducted yet

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 15

Future 650 MHz CM design plan

  • Joint design team being proposed

– FNAL, CEA, RRCAT – CM design – STFC – Transportation

  • Standardization of CM concept & components desired for

LB650 & HB650 CMs

– Couplers, tuners, cavity interfaces being designed to have commonality between LB & HB

  • HB650 CM design may lead LB650 design in time

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development

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SLIDE 16

Today…

  • Comparing strong-back & space-frame designs for trans-

Atlantic transport

– HB650 strong-back is 6-cavity, ~10 m long CM

  • ~2.5 weeks analysis time frame
  • 1st iteration of design

– LB650 strong-back is 3-cavity, ~5 m long CM (not analyzed yet) – Space-frame originally designed & analyzed for SNS by JLab – ESS Space-frame is 4-cavity, ~6 m long CM

  • Multi-year analysis and iteration (based on report dates)

10/23/2018 S.K. Chandrasekaran | PIP-II CM Overview & 650 MHz Development