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Research project
Completed

ALICE ITS3 WP4 ALPIDE Bending Test

18 mm fixture fabrication and ALPIDE testing

ALICE ITS3 WP4 ALPIDE Bending Test

Institution

HIPEx Group, Pusan National University

Collaboration

ALICE ITS3 WP4-related activities

Timeline

Mar 2023 - Jan 2024

Updated:
Tags:particle-physicsCERNdetectorsilicon

Overview

As an undergraduate researcher in PNU HIPEx, I participated in ALPIDE bending tests related to ALICE ITS3 WP4. My work covered fixture fabrication, profile inspection, readout connections, and standard scans.

My work

  • Tested chip mounting with dummy silicon and Kapton tape.
  • Designed the PNU Guide & Frame in CAD with a nominal 18 mm radius and fabricated it by 3D printing.
  • Inspected the mounted dummy chip's surface with a Keyence VR-6200.
  • Connected the supplied ALPIDE assembly to the readout chain and performed standard scans in flat, bent, and reverse-bent states.

Quantitative electrical test results are not published on this page.

PNU Guide & Frame design and fabricated fixture
The PNU Guide & Frame I designed and fabricated

The Guide directed FPC insertion, while the Frame held the assembly at the nominal curvature. The photograph shows the fixture used in the tests.

Readout connections from ALPIDE through the FPC and boards to the DAQ
ALPIDE readout chain used in the tests

The koALICE team designed the FPC, and Memspack fabricated it. I connected and tested the supplied assembly; I did not design the sensor or FPC itself.

ALPIDE mounted on the fixture and connected to readout boards and DAQ
Local test setup in November 2023

Background references