High event rate ROICs (HEROICs) for astronomical UV photon counting detectors

2014 ◽  
Author(s):  
Alex Harwit ◽  
Kevin France ◽  
Vic Argabright ◽  
Steve Franka ◽  
Ed Freymiller ◽  
...  
Keyword(s):  
Event Rate ◽  
Photon Counting ◽  
Photon Counting Detectors ◽  
High Event ◽  
High Event Rate

Effects of Task Demands and Age on Vigilance and Subjective Workload

1988 ◽  
Vol 32 (19) ◽  
pp. 1458-1462 ◽  
Author(s):  
John E. Deaton ◽  
Raja Parasuraman
Keyword(s):  
Event Rate ◽  
Cognitive Task ◽  
Adult Life ◽  
Vigilance Task ◽  
Task Demands ◽  
Adult Life Span ◽  
Subjective Workload ◽  
Aged Subjects ◽  
High Event ◽  
High Event Rate

Sensory and cognitive vigilance were directly compared in two experiments. The question of whether sensory and cognitive vigilance task demands can be differentiated on the basis of perceived workload was also addressed. A third focus of the study was to investigate changes in sensory and cognitive vigilance across the adult life span. In Experiment 1 60 subjects from three age categories—young, middle, and elderly were studied. Experiment 2 consisted of 20 subjects from only the young and old age categories. Subjects performed a visual sensory and a cognitive vigilance task at low and high event rates. Each task used identical stimulus sets (pairs of digits) and differed only in the definition of a critical target. Task demands were a major determinant of vigilance performance. Cognitive vigilance was more resistant to decrement over time than sensory vigilance. On the other hand, the cognitive task was more adversely affected by high event rate than the sensory task. Older subjects had lower hit rates than young and middle-aged subjects on the cognitive task, particularly at the high event rate. Subjective workload results suggested that the increased mental demands required of the cognitive task at the high event rate were associated with performance differences between sensory and cognitive tasks. However, the results also revealed an apparent dissociation between performance and subjective workload measures. Implications of the results for display design and assessment of individual differences in monitoring capability are discussed.

A Very High Event Rate Data Acquisition System in Fastbus

1986 ◽  
Vol 33 (1) ◽  
pp. 111-112 ◽  
Author(s):  
S. E. Eiseman ◽  
A. Etkin ◽  
K. J. Foley ◽  
J. J. Gould ◽  
R. W. Hackenburg ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Event Rate ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Rate Data ◽  
High Event ◽  
Very High ◽  
High Event Rate

scholarly journals Embedded Signal Processing Module for Online Filtering in High-Event Rate Conditions

2018 ◽  
Vol 33 (1) ◽  
pp. 54-61
Author(s):  
Linton Esteves ◽  
Eduardo Filho ◽  
Paulo Farias ◽  
Luciano Filho ◽  
Augusto Cerqueira ◽  
...  
Keyword(s):  
Signal Processing ◽  
Event Rate ◽  
Processing Module ◽  
Embedded Signal Processing ◽  
High Event ◽  
Signal Processing Module ◽  
High Event Rate

scholarly journals Ion-ion coincidence imaging at high event rate using an in-vacuum pixel detector

2017 ◽  
Vol 147 (1) ◽  
pp. 013919 ◽  
Author(s):  
Federico J. Furch ◽  
Judith Durá ◽  
Anton S. Tremsin ◽  
John Vallerga ◽  
Claus Peter Schulz ◽  
...  
Keyword(s):  
Event Rate ◽  
Pixel Detector ◽  
Coincidence Imaging ◽  
High Event ◽  
High Event Rate

The Effects of Event Rate on a Cognitive Vigilance Task

2018 ◽  
Vol 61 (3) ◽  
pp. 440-450 ◽  
Author(s):  
Victoria L. Claypoole ◽  
Daryn A. Dever ◽  
Kody L. Denues ◽  
James L. Szalma
Keyword(s):  
Task Difficulty ◽  
Event Rate ◽  
Vigilance Task ◽  
False Alarms ◽  
Rate Condition ◽  
Mean Response Time ◽  
Perceived Workload ◽  
High Event ◽  
Human Factors Research ◽  
High Event Rate

Objective: The present experiment sought to examine the effects of event rate on a cognitive vigilance task. Background: Vigilance, or the ability to sustain attention, is an integral component of human factors research. Vigilance task difficulty has previously been manipulated through increasing event rate. However, most research in this paradigm has utilized a sensory-based task, whereas little work has focused on these effects in relation to a cognitive-based task. Method: In sum, 84 participants completed a cognitive vigilance task that contained either 24 events per minute (low event rate condition) or 40 events per minute (high event rate condition). Performance was measured through the proportion of hits, false alarms, mean response time, and signal detection analyses (i.e., sensitivity and response bias). Additionally, measures of perceived workload and stress were collected. Results: The results indicated that event rate significantly affected performance, such that participants who completed the low event rate task achieved significantly better performance in terms of correction detections and false alarms. Furthermore, the cognitive vigil utilized in the present study produced performance decrements comparable to traditional sensory vigilance tasks. Conclusion: Event rate affects cognitive vigilance tasks in a similar manner as traditional sensory vigilance tasks, such that a direct relation between performance and level of event rate was established. Application: Cognitive researchers wishing to manipulate task difficulty in their experiments may use event rate presentation as one avenue to achieve this result.

Characterization of an ultraviolet imaging detector with high event rate ROIC (HEROIC) readout

2016 ◽  
Author(s):  
Nicholas Nell ◽  
Kevin France ◽  
Alex Harwit ◽  
Scott Bradley ◽  
Steve Franka ◽  
...  
Keyword(s):  
Event Rate ◽  
Imaging Detector ◽  
High Event ◽  
High Event Rate
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