MICE Step IV without the Downstream M1 Solenoid J. Scott Berg - - PowerPoint PPT Presentation

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MICE Step IV without the Downstream M1 Solenoid

• J. Scott Berg

Brookhaven National Laboratory MAP Weekly Meeting September 25, 2015

MICE Step IV

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E2U CCU E1U M2U M1U FCU FCD M1D M2D E1D CCD E2D

÷ E1/CC/E2 create a uniform ˘ 4 T field for the spectrometer ÷ FC/M1/M2 create a low-beta focus at the absorber ÷ M1/M2 share a cryostat with E1/CC/E2

September 25, 2015

• J. S. Berg — MICE Step IV without Downstream M1 — MAP Friday Meeting

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Then there was a Foul Odor

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E2U CCU E1U M2U M1U FCU FCD M1D M2D E1D CCD E2D

÷ The downstream M1 solenoid is not currently working ÷ We need a plan for Step IV without the downstream M1 ÷ Several people have been looking at solutions

September 25, 2015

• J. S. Berg — MICE Step IV without Downstream M1 — MAP Friday Meeting

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What is being Looked At?

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÷ Challenge is getting low beta while maintaining acceptance ÷ Lowering spectrometer fields (spectrometer resolution issues)

’ Maybe different upstream/downstream

÷ Solutions with upstream M1 on: asymmetric ÷ Use of E2 like a matching coil: doesn’t really help ÷ Maybe having runs with low spectrometer field (poorer resolution but cooling) and higher spectrometer field (better resolution, more cooling)

September 25, 2015

• J. S. Berg — MICE Step IV without Downstream M1 — MAP Friday Meeting

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What is being Looked At?

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÷ Mostly linear lattice studies thus far, but Chris Rogers has put forth a couple solutions to track

September 25, 2015

• J. S. Berg — MICE Step IV without Downstream M1 — MAP Friday Meeting

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