US-MDP CCT Program Review

Monday 1 May 2017, 08:00 → 17:30 US/Pacific

Conference room (B47)

US Magnet Development Program

CCT Magnet Program

 

Review date: May 1^st, 2017

Introduction: The US MDP is pursuing multiple efforts for the development of high field accelerator magnet technology. One line of investigation, pursued as a high-risk, high-reward element of the program, is the investigation of the “Canted Cosine Theta” (CCT) magnet concept. The CCT program is currently focused on identifying and addressing primary technical challenges associated with the use of Nb₃Sn in the CCT configuration. To that end, a series of 2-layer magnets are being produced. The 2^nd Nb₃Sn 2 layer magnet, CCT4, is being readied for testing, and a follow-on magnet, CCT5, is being readied for fabrication. Furthermore, a subscale CCT model program is being considered for fast, low cost tests that probe specific design and fabrication issues.

Charge to the review committee: The goal of this review is to evaluate the current CCT R&D plan, identify technical risks, and provide feedback on technical issues and possible mitigation strategies.

1. Is the test plan for the CCT4 magnet sufficiently detailed? Are there elements missing from the plan that could further advance insight into magnet performance and guide future CCT designs?
2. Are the design elements for CCT5 clearly defined and appropriately chosen?
   1. Is the mechanical design sound, i.e. have risks been identified and addressed in a reasonable manner?
   2. Is the magnetic design sound, i.e. are the models sufficiently detailed to provide feedback on magnet performance and measurements?
   3. Is there additional analysis that should be performed prior to fabrication?
   4. Has the conductor and cable been properly qualified, and is the magnet heat treatment appropriately defined?
3. Are the CAD, fabrication drawings, tooling and assembly plan sufficiently advanced for fabrication to commence?

 

Review committee:

• Steve Virostek - Chair
• Helene Felice
• Shlomo Caspi
• Giorgio Ambrosio
• Sandor Feher

08:00 → 08:10 Executive session I

Speaker: Steve Virostek (LBNL)

08:10 → 08:20 Introduction: Review of charge, overview of MDP and the role of the CCT

Speaker: Soren Prestemon (LBNL)

08:20 → 08:40 Overview of the CCT design

Speaker: Diego Arbelaez (Lawrence Berkeley National Lab)

08:45 → 09:15 Magnetic design and analysis

Speaker: Lucas Brouwer

09:20 → 09:50 Mechanical design and analysis

Speaker: Lucas Brouwer

10:00 → 10:15 Break

10:15 → 10:35 Conductor design and characterization

Speaker: Ian Pong

10:40 → 11:05 Magnet fabrication process

Speaker: Diego Arbelaez (Lawrence Berkeley National Lab)

11:10 → 11:30 Summary of CCT3 test results

Speaker: Maxim Martchevskii

11:35 → 11:50 Summary of lessons learned from CCTs

Speaker: Diego Arbelaez (Lawrence Berkeley National Lab)

11:55 → 12:15 Discussion and Q&A

12:15 → 13:30 Lunch

13:30 → 14:00 Magnetic measurements

Speaker: Xiaorong Wang

14:05 → 14:40 Test plan, QA, diagnostics and protection

Speaker: Maxim Martchevskii

14:40 → 15:00 Break

15:00 → 15:20 Powering and detection/protection infrastructure

Speaker: Marcos Turqueti (LBNL)

15:20 → 15:30 Discussion and Q&A

15:30 → 17:00 Review Committee: closed session

17:00 → 17:30 Closeout

Speaker: Steve Virostek (LBNL)