Validation of Up-the-Ramp Sampling with Cosmic-Ray Rejection on Infrared Detectors
نویسندگان
چکیده
We examine cosmic-ray rejection methodology on data collected from InSb and Si:As detectors. The application of an up-the-ramp sampling technique with cosmic-ray identification and mitigation is the focus of this study. This technique is valuable for space-based observatories which are exposed to high-radiation environments. We validate the up-the-ramp approach on radiation-test data sets with InSb and Si:As detectors which were generated for SIRTF. The up-the-ramp sampling method studied in this paper is over 99.9% effective at removing cosmic rays and preserves the structure and photometric quality of the image to well within the measurement error.
منابع مشابه
Validation of Up-the-Ramp Sampling with Cosmic Ray Rejection on IR Detectors
We examine cosmic ray rejection methodology on data collected from InSb and Si:As detectors. The application of an Up-the-Ramp sampling technique with onthe-fly cosmic ray identification and mitigation is the focus of this study. This technique is valuable for space-based observatories which are exposed to high-radiation environments. We validate the Up-the-Ramp approach on radiation-test data ...
متن کاملMemory-Efficient Up-the-Ramp Processing with Cosmic-Ray Rejection
We introduce a memory-efficient method for processing up-the-ramp sampled data to reduce noise and remove cosmic-ray events. The method we describe includes initial processing in the readout electronics (onboard, in the case of a space mission) plus postprocessing downstream. This data processing approach can be used to record or downlink high-quality science data using a small fraction of the ...
متن کاملHigh Altitude γ-ray Observatory at Hanle (HAGAR)
We have proposed to set up an experiment to detect celestial γ-rays of energy ≥ 20 GeV using the atmospheric Čerenkov Technique at Hanle, a high altitude location in the Himalayas. The limited lateral spread of the Čerenkov light pool, near 90% atmospheric transmission of Čerenkov light and low sky brightness makes this high altitude site an ideal place to set up a ground-based γray observatory...
متن کاملBayesian event reconstruction and background rejection in neutrino detectors
Several large volume, high energy neutrino detectors are in operation or in the design stage. Upward going signal neutrino events must be separated from large backgrounds of downgoing cosmic ray induced atmospheric muons. To this end, a Bayesian extension of the traditional maximum likelihood reconstruction method will be described. Further, it will be shown how signals can be separated from ba...
متن کاملA kilo-pixel imaging system for future space based far-infrared observatories using microwave kinetic inductance detectors
Aims. Future astrophysics and cosmic microwave background space missions operating in the far-infrared to millimetre part of the spectrum will require very large arrays of ultra-sensitive detectors in combination with high multiplexing factors and efficient lownoise and low-power readout systems. We have developed a demonstrator system suitable for such applications. Methods. The system combine...
متن کامل