52 research outputs found
Sex, Drugs, and Reckless Driving: Are Measures Biased Toward Identifying Risk-Taking in Men?
No full textThis is the author accepted manuscript. The final version is available from SAGE Publications via the DOI in this record.We investigated whether risk-taking measures inadvertently focus on behaviors that are more normative for men, resulting in the overestimation of gender differences. Using a popular measure of risk-taking (Domain-Specific Risk-Taking) in Study 1 (N = 99), we found that conventionally used behaviors were more normative for men, while, overall, newly developed behaviors were not. In Studies 2 (N = 114) and 3 (N = 124), we demonstrate that differences in normativity are reflected in gender differences in self-reported risk-taking, which are dependent on the specific items used. Study 3 further demonstrates that conventional, masculine risk behaviors are perceived as more risky than newly generated, more feminine items, even when risks are matched. We conclude that there is confirmation bias in risk-taking measurement.The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by an internal competitive grant from the Melbourne Business School, University of Melbourne, awarded to Cordelia Fine, who is also grateful for the support of the Women’s Leadership Institute Australia. This work was also supported by an internal competitive grant from the College of Life and Environmental Sciences, University of Exeter, awarded to Thekla Morgenroth and Michelle Ryan. Michelle Ryan was also supported by a British Academy Mid-Career Fellowshi
A 4-Channel Waveform Sampling ASIC in 0.13μm CMOS for front-end Readout of Large-Area Micro-Channel Plate Detectors
No full textAbstractWe describe here the development of PSEC-3, a custom integrated circuit designed in the IBM-8RF 0.13μm CMOS process and intended for fast, low-power waveform sampling. As part of the Large-Area Picosecond Photo-Detector (LAPPD) collaboration, this chip has been designed as a prototype application-specific integrated circuit (ASIC) for the front-end transmission line readout of large-area micro-channel plate photomultiplier tubes (MCP-PMTs). With 4 channels, PSEC-3 has a buffer depth of 256 samples on each channel, a chip-parallel ramp-compare ADC, and a serial data readout that includes the capability for region-of-interest windowing to reduce dead time. Chip calibrations and performance results, including achieved sampling rates of 2.5-17 GSa/s, are reported. Some design issues are identified, in particular the dependence of analog bandwidth on location in the sampling array. The causes have been found and addressed in a subsequent PSEC-4 submission
A new 130nm F.E readout chip for microstrip detectors
No full text3 pages, 4 figures, LCWS08 workshophttps://www.slac.stanford.edu/econf/C081116/index.htmlInternational audienceIn the context of the Silicon tracking for a Linear Collider (SiLC) R&D collaboration, a highly compact mixed-signal chip has been designed in 130nm CMOS technology intended to read Silicon strip detectors for the experiments at the future International Linear Collider. The chip includes eighty eight channels of a full analog signal processing chain and analog to digital conversion with the corresponding digital controls and readout channels. The chip is 5x10mm2 where the analog implementation represents 4/5 of the total Silicon area
Silicon Tracking DAQ
No full text4 pages, 5 figures, LCWS08 ProceedingsInternational audienceSome preliminary thoughts on how to design and develop the DAQ architecture for the Silicon tracking system at the future Linear electron positron collider, are briefly presented here. The proposed structure includes three DAQ levels. The first level is based on a high level processing mix-mode ASIC sitting on the detector. The second level still on the detector is a DSP like interface that will send the processed data to the general DAQ system. Several novel technological aspects are part of this development. The role of the ongoing test beam activities with detector prototypes as training camp is emphasized
Front-end Electronics for Silicon Trackers readout in Deep Sub-Micron CMOS Technology: The case of Silicon strips at the ILC.
No full textInternational audienceFor the years to come, Silicon strips detectors will be read using the smallest available integrated technologies for room, transparency, and power considerations. CMOS, Bipolar-CMOS and Silicon-Germanium are presently offered in deepsubmicron (250 down to 90nm) at affordable cost through worldwide integrated circuits multiproject centers. As an example, a 180nm CMOS readout prototype chip has been designed and tested, and gave satisfactory results in terms of noise and power. Beam tests are under work, and prospectives in 130nm will be presented
The fast track real time processor and its impact on muon isolation, tau and b-jet online selections at ATLAS
No full textAs the LHC luminosity is ramped up to 3×1034 cm−2
s−1 and beyond, the high rates, multiplicities, and energies of
particles seen by the detectors will pose a unique challenge. Only
a tiny fraction of the produced collisions can be stored on tape
and immense real-time data reduction is needed. An effective
trigger system must maintain high trigger efficiencies for the
physics we are most interested in, and at the same time suppress
the enormous QCD backgrounds. This requires massive
computing power to minimize the online execution time of
complex algorithms. A multi-level trigger is an effective solution
for an otherwise impossible problem. The Fast Tracker (FTK) is
a proposed upgrade to the current ATLAS trigger system that
will operate at full Level-1 output rates and provide high quality
tracks reconstructed over the entire detector by the start of
processing in Level-2. FTK solves the combinatorial challenge
inherent to tracking by exploiting massive parallelism of
associative memories that can compare inner detector hits to
millions of pre-calculated patterns simultaneously. The tracking
problem within matched patterns is further simplified by using
pre-computed linearized fitting constants and leveraging fast
DSPs in modern commercial FPGAs. Overall, FTK is able to
compute the helix parameters for all tracks in an event and apply
quality cuts in less than 100 μs. The system design is defined and
studied with respect to high transverse momentum (high-PT)
Level-2 objects: b-jets, tau-jets, and isolated leptons. We test FTK
algorithms using ATLAS full simulation with WH events up to
3×1034 cm−2 s−1 luminosity and comparing FTK results with the
offline tracking capability. We present the architecture and the
reconstruction performances for the mentioned high-PT Level-2
objects
- …
