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Optimizing Pad Response Width in Time Projection Chamber for Enhanced Nuclear Physics Measurements

This study, presented at the IPAS Group meeting by Jia-Ye Chen in 2006, focuses on the Pad Response Function (PRF) of a Time Projection Chamber (TPC). It investigates the coupling strength between cathode pads and sense wires as a function of distance, aiming to improve accuracy in detecting electron avalanches. By analyzing pulse heights on pads and the impact of azimuthal positions, strategies to set correct hits and reduce residual response width are explored. The research emphasizes the significance of pad width, diffusion, and angular wire effects in three-pad clusters' analysis.

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Optimizing Pad Response Width in Time Projection Chamber for Enhanced Nuclear Physics Measurements

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Presentation Transcript

  1. Nuclear Physics IPASGroup Meeting Jia-Ye Chen 2006.2.16

  2. Time Projection Chamber (TPC)

  3. Pad Response Function (PRF) • The coupling strength between cathode pads and sense wires depends on the distance between the pads and the electron avalanches. • Pulse height on pad number i for a given azimuthal position x of the avalanche above the pad row : Pad Response Width

  4. Purpose 1. Set Correct Hits 2. Reduce Residual

  5. Pad Response Width (NTPC)

  6. Pad Response Width : Pad Width : Diffusion : Angular Wire Effects

  7. Three-Pad Cluster • If three pads with pulse heights P1, P2 and P3 contribute to a cluster.

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