The Express: October 21 ,1999

TUFW blood drive a success: O-positive blood among donations — Community Service Day just around the corner — Back to school: Student returns to class after hit-and-run — Crime Box — the Fountain — Express Index — The Heart of A Master Builder — Pride, Prosperity, and Guilt Manipulation — From the Top… — Living off campus, but staying on track — True Reviews — On the Town… — Into the Taylor Millennium — Stepping it up — What’s Up with Intramurals? — Soccer Player Profile — Falcons Schedule — Lady Falcons Strive Onward — Top 10 — …And One — Computing and systems sciences professor among new faculty members — Family Weekend — News — Burned-out flood-light factor in TUFW auto thefthttps://pillars.taylor.edu/express-1999-2000/1000/thumbnail.jp

Precision scans of the pixel cell response of double sided 3D pixel detectors to pion and x-ray beams

hree-dimensional (3D) silicon sensors offer potential advantages over standard planar sensors for radiation hardness in future high energy physics experiments and reduced charge-sharing for X-ray applications, but may introduce inefficiencies due to the columnar electrodes. These inefficiencies are probed by studying variations in response across a unit pixel cell in a 55μm pitch double-sided 3D pixel sensor bump bonded to TimePix and Medipix2 readout ASICs. Two complementary characterisation techniques are discussed: the first uses a custom built telescope and a 120GeV pion beam from the Super Proton Synchrotron (SPS) at CERN; the second employs a novel technique to illuminate the sensor with a micro-focused synchrotron X-ray beam at the Diamond Light Source, UK. For a pion beam incident perpendicular to the sensor plane an overall pixel efficiency of 93.0±0.5% is measured. After a 10o rotation of the device the effect of the columnar region becomes negligible and the overall efficiency rises to 99.8±0.5%. The double-sided 3D sensor shows significantly reduced charge sharing to neighbouring pixels compared to the planar device. The charge sharing results obtained from the X-ray beam study of the 3D sensor are shown to agree with a simple simulation in which charge diffusion is neglected. The devices tested are found to be compatible with having a region in which no charge is collected centred on the electrode columns and of radius 7.6±0.6μm. Charge collection above and below the columnar electrodes in the double-sided 3D sensor is observed

Out of Sight, Out of Mind: A Historical Fiction Detailing the Trauma of Mental Institutions in the mid 1940’s

Out of Sight, Out of Mind is a historical fiction that details the trauma of one character, Francie, when she is admitted to a mental institution against her will in mid-1940’s America. Francie suffers from severe bipolar depression, which was poorly understood and had little treatments during this time. Different characters take turns narrating this piece, demonstrating how different perspectives can provide insight into the same circumstance. Francie’s family must cope with complicated family relationships and mental illness throughout this narrative, which serves as the first segment of a future novel