We describe data reduction and analysis of fluctuations in the cosmic far-IR background (CFIB) in observations with the Multiband Imaging Photometer for Spitzer (MIPS) instrument 160 μm detectors. We analyzed observations of an 8.5 square degree region in the Lockman Hole, part of the largest low-cirrus mapping observation with this instrument. We measured the power spectrum of the CFIB in thes...

Tayfun Aytaç Billur Barshan Bilkent University Department of Electrical Engineering Bilkent, TR-06800 Ankara, Turkey E-mail: [email protected] Abstract. We differentiate surfaces with different properties with simple low-cost IR emitters and detectors in a location-invariant manner. The intensity readings obtained with such sensors are highly dependent on the location and properties of t...

Green bridges are used to decrease highly negative impact of roads/highways on wildlife populations and their effectiveness is evaluated by various monitoring methods. Based on the 3-year monitoring of four Croatian green bridges, we compared the effectiveness of three indirect monitoring methods: track-pads, camera traps and active infrared (IR) trail monitoring system. The ability of the meth...

While fluorescence continues to be an important tool in genomics, new challenges are being encountered due to increased efforts toward miniaturization reducing detection volumes and the need for screening multiple targets simultaneously. We have initiated work on developing time-resolved near-IR fluorescence as an additional tool for the multiplexed analyses of DNA, either for sequencing or mut...

Using UVIS and IR data from the 2004 thermal vacuum tests, we have searched for anomalous behavior in the WFC3’s analog-to-digital converters (ADCs). We find that the ADCs of the CCD channel operate nominally, except for the less significant bits which favor 1’s over 0’s by up to 5%, depending on the ADC and on the input voltage. The IR channel, clocked at double speed, also shows departures in...

Defect in welded structures is a matter of serious concern. The current practice involves interpretation by inspectors and experts, of radiographs after the weld is completed which is time consuming. With greater emphasis on automation during manufacturing process, automated NDT has gained prominence. One of the Non Destructive Evaluation (NDE) techniques that is being increasingly applied for ...

Since the introduction of extremely intense X-ray free electron lasers, need for low noise, high dynamic range and potentially fast charge integrating detectors has increased significantly. Among all problems that research development groups have to face in such detectors, their calibration represents one most challenging collaboration between detector user is fundamental importance. The main c...

this paper addresses the signal processing principles in passive bistatic radar (pbr) systems. in this case, the detection problem in the presence of system noise, clutter/multipath, direct signal and interfering target signals is investigated. to this light, two types of detectors are studied. in the first one, which is based on intuitive sense, we examine two detectors. in the second type det...

Modulated tone-burst light was employed to measure non-radiative relaxation time of fluorophores with biomedical importance through photoacoustic effect. Non-radiative relaxation time was estimated through the frequency dependence of photoacoustic signal amplitude. Experiments were performed on solutions of new indocyanine green (IR-820), which is a near infrared dye and has biomedical applicat...