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To-Do and Milestone Plan of New Vertex Chamber

To-Do and Milestone Plan of New Vertex Chamber. Masashi Kaneta. To-Do list. Cell size determination Layer Structure Readout (ASD) card design. Cell Size Determination. Task Estimate single count rate in Mini DC region Use GEANT4 simulation Compare estimation to data (Maruya M. Thesis)

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To-Do and Milestone Plan of New Vertex Chamber

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  1. To-Do and MilestonePlanof New Vertex Chamber Masashi Kaneta Masashi Kaneta, Tohoku Univ.

  2. To-Do list • Cell size determination • Layer Structure • Readout (ASD) card design Masashi Kaneta, Tohoku Univ.

  3. Cell Size Determination • Task • Estimate single count rate in Mini DC region • Use GEANT4 simulation • Compare estimation to data (Maruya M. Thesis) • to check reliability of simulation •  and proton momentum distributions from K0S and L decay • Estimate acceptance effect to efficiency, as a function of • chamber height • angle on x-y plane, if a forward region is removed • Tool • Tsukada’s “/NKS2/dev/calculation/kinematics“ program • NKS2 GENAT4 simulation “/NKS2/dev/simulation” • Person in charge • Shogo Kiyokawa • Dead line • July 20 (before next vertex chamber meeting) Masashi Kaneta, Tohoku Univ.

  4. Layer Structure • Task • Number of layers and style • x, x’, u, v, u, v, x, x’ • u, v, u, v, u, v and more? • Stereo angle in u, v • At least 7 degree (similar to CDC) • Should be determined from the request of momentum resolution • Cell shape • Square (rectangle) • field wire pitch • Honeycomb • Tool • A program to visualize cell alignment • ~kaneta/nks2/mini_dc/C on farm machine • Tsukada’s “kinematics” program and NKS2 GEANT4 simulation • Garfield • Charge in person • Masashi Kaneta and Shogo Kiyokawa • Deadline • July 20 (before next vertex chamber meeting) Masashi Kaneta, Tohoku Univ.

  5. Readout card design • Task • Estimate effective volume • related chamber height of detection region • Determine board alignment • modification of GNA-060 with small connecter, or • design new special board • Connector size • pin pitch • check whether cross talk exists • Charge in person • Masashi Kaneta and Shogo Kiyokawa • Dead line • July 31 Masashi Kaneta, Tohoku Univ.

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