Muon Acceleration ProgramTechnology Development

A. BrossNFMCC CM

January 15, 2010

1A. Bross NFMCC CM January 15, 2009

It is not a

Project!

MAP - Technology Development

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Technology DevelopmentLevel 2 Task

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Normal Conducting RF

Y’All know the Drill: Three Approaches

Reduce/eliminate field emission in Vacuum RF Material Studies Process cavities utilizing SCRF techniques

RF cavities filled with HP gas Utilize Paschen effect to stop breakdown

Magnetic Insulation in Vacuum RF Eliminate magnetic focusing

– Not Yet Tested This is an area where there is already great

pressure to down-select “Resistance is Futile”

But we must, at least initially4A. Bross NFMCC CM January 15, 2009

RF Milestones

Date Milestone Designation Deliverablesa)

FY10 Complete engineering design for Be-wall rf cavity TD10.1 DR, MRComplete HPRF cavity beam tests TD10.2 DR, MR

FY11 Fabricate Be-wall rf cavity TD11.1 DRTest 201-MHz cavity with coupling coil in MTA TD11.2 DRFabricate and test model collider magnet TD11.3 DR

FY12 Test new HPRF cavity TD12.1 DRComplete Be-wall rf cavity tests TD12.2 FR

FY13 Fabricate small HTS test magnet TD13.1 DRBegin conceptual design of collider magnet TD13.2 DR

FY14 Prepare rf test cavity with ALD coating TD14.1 DRBegin conceptual design of ~50-T solenoid TD14.2 DRComplete component designs for 6D cooling bench test

TD14.3 FR

FY15 Fabricate components for 6D cooling bench test TD15.1 MRFY16 Complete components for 6D cooling bench test TD16.1 DR

Assemble components for 6D cooling bench test TD16.2 MRComplete conceptual design of ~50-T solenoid TD16.3 DR,ERFinish technology section of Final MC report TD16.4 FR

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Super Conducting RF

You we hear about this in detail from Don next

But: Need lots of 201 MHz But, use 500 MHz as test vehicle Application of ALD

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Magnets

Other than the Very-Large-Magnetic volume needed for the NF TASD concept, all magnet work for MC/MCDFS

HTS solenoid R&D to assess the parameters that are likely to be achieved

HCC magnet R&D to assess the feasibility of this type of cooling channel and possibly to build a demonstration magnet for an HCC test section (see Section 6.2.2)

Note: Success with the HCC could make it cooling choice for NF also.

Open mid-plane dipole magnet R&D to assess the viability of this magnet type for the collider ring

Very fast ramping normal-conducting magnets for the later stages of acceleration

This may turn out to be an indispensible cost-saving technology

Other magnet studies to inform choices, parameters and cost estimates for the target-station solenoid and accelerator magnets.

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Milestones

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Date Milestone Designation Deliverablesa)

FY10 Complete engineering design for Be-wall rf cavity TD10.1 DR, MRComplete HPRF cavity beam tests TD10.2 DR, MR

FY11 Fabricate Be-wall rf cavity TD11.1 DRTest 201-MHz cavity with coupling coil in MTA TD11.2 DRFabricate and test model collider magnet TD11.3 DR

FY12 Test new HPRF cavity TD12.1 DRComplete Be-wall rf cavity tests TD12.2 FR

FY13 Fabricate small HTS test magnet TD13.1 DRBegin conceptual design of collider magnet TD13.2 DR

FY14 Prepare rf test cavity with ALD coating TD14.1 DRBegin conceptual design of ~50-T solenoid TD14.2 DRComplete component designs for 6D cooling bench test

TD14.3 FR

FY15 Fabricate components for 6D cooling bench test TD15.1 MRFY16 Complete components for 6D cooling bench test TD16.1 DR

Assemble components for 6D cooling bench test TD16.2 MRComplete conceptual design of ~50-T solenoid TD16.3 DR,ERFinish technology section of Final MC report TD16.4 FR

Targetry

Targetry is not currently explicitly in the text of the MAP proposal under Technology Development, but under the ISD-NF

With the input from the MERIT experiment, the U.S. contribution to the IDS-NF in this area will be on more advanced simulations to set definitive benchmarks for the NF/MC target system

Make the next iteration on the facility design (following the ORNL/TM-2001/124 technical report) and to develop engineering details of component parts of the system such as the target solenoid

But from Kirk’s (Harold’s) talk yesterday, we see that there is room for optimization

– Splash mitigation in the mercury beam dump.• Possible drain of mercury out upstream end of magnets.

– Downstream beam window.– Water-cooled tungsten-carbide shield of superconducting

magnets.– HTS fabrication of the superconducting magnets.– Improved nozzle for delivery of Hg jet– --------

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Overall Goals

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Specifications ConceptualDesign

EngineeringDesign

Sub-assembly prototype

Full-assembly prototype

High field HTS solenoid

HCC magnets

Fast-ramping magnets

Collider ring magnets

Target design

10–15T solenoid

Guggenheim channela)

Helical cooling channela)

6D cooling experiment

Global Manpower Effort - FTE

Year 1

Year 2 Year 3 Year 4 Year 5 Year 6 Year 7

RF 6 10 10 7 7 3 -

Magnets

12 14 16 18 13 9 6

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This is a sum over all types: Scientists, Engineers, Postdocs and Technicians

Overall Effort & Likely available Resources

With current guidance we are not likely going to be able to do even all the tasks we currently have on our “A” list

Getting convergence on the overall Program Plan will take some work over the next weeks.

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