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Optimizing ANKE Spectrometer with New Target Chamber for Accurate Storage Cell Tests

This project aims to enhance the ANKE spectrometer by installing a new target chamber suitable for accommodating different types of storage cells. The target chamber will support cluster and pellet targets, as well as space for detector installation. Equipment for cell tests will be set up post-summer run to determine precise cell dimensions and conduct tests with cluster targets. Through these improvements, the ANKE spectrometer will achieve more accurate and reliable results in its research endeavors.

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Optimizing ANKE Spectrometer with New Target Chamber for Accurate Storage Cell Tests

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  1. Storage Cell Tests at ANKE(R. Engels, B. Lorentz, F. Rathmann, H. Seyfarth …) • ANKE with PIT • New Targetchamber installed! • Tests using an Aperture • Preparation for tests with cells

  2. Goal: ANKE Spectrometer with a polarized internal storage cell target

  3. New Targetchamber Needed for: • Accomodation of the storage cell of the PIT • Flexible use with • Cluster Target • Pellet Target • Space for Installation of a vertex/spectator detector • BPM system up/downstream of cell (x vs y) • Differential pumping • Still Missing: • ABS Bridge • LSP Support • Supports for setup in Bermuda 

  4. Chamber prior to installation(Winter shutdown 2002/2003) ZAT! Beam

  5. After Installation

  6. ANKE BPM (upstream) • Movable, acceptance limit. of backward detector beam

  7. Aperture Tests • Aperture mounted on horizontal strip target support • Beam Steering capabilities improved around ANKE (SH30SV30) • With a vertical four-steerer bump (SV24+SV26) and (SV28 SV30), orbit bump at ANKE small! Without aperture: 21010 With Aperture: 9.4109 2.44 GeV/c March 2002

  8. Equipment for Cell tests Two xy Tables Window frame (25 mm  50 mm) beam

  9. Planned Measurements • Install equipment (xy tables + frame) after long summer run • Goal: Find cell dimensions • Tests with Cluster Target no target dt=1.41014 cm-2 dt=41014 cm-2 M.A. Ross et al. NIM A 326, 424 (1993)

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