Use of Wedge Absorbers in MICE

Technical Report · Wed Mar 01 00:00:00 EST 2017

DOI:https://doi.org/10.2172/1354869· OSTI ID:1354869

Neuffer, D. ^[1]; Summers, D. ^[2]; Mohayai, T. ^[3]; Snopok, P. ^[3]; Rogers, C. ^[4]

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1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
2. Univ. of Mississippi, Oxford, MS (United States)
3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); IIT, Chicago, IL (United States)
4. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)

Wedge absorbers are needed to obtain longitudinal cooling in ionization cooling. They also can be used to obtain emittance exchanges between longitudinal and transverse phase space. There can be large exchanges in emittance, even with single wedges. In the present note we explore the use of wedge absorbers in the MICE experiment to obtain transverse–longitudinal emittance exchanges within present and future operational conditions. The same wedge can be used to explore “direct” and “reverse” emittance exchange dynamics, where direct indicates a configuration that reduces momentum spread and reverse is a configuration that increases momentum spread. Analytical estimated and ICOOL and G4BeamLine simulations of the exchanges at MICE parameters are presented. Large exchanges can be obtained in both reverse and direct configurations.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1354869
• Report Number(s): MICE-NOTE-508; FERMILAB-FN-1028-AP-APC; 1520756
• Country of Publication: United States
• Language: English

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