NON-INVASIVE GRADING TECHNIQUE FOR RUBY GEMSTONE USING CHARGE-COUPLED DEVICE (CCD)

Responsivity mapping techniques for the non - positional CCD ; the swept charge device CCD 236

The e2v CCD236 is a swept charge device (SCD) designed as a soft X-ray detector for spectroscopy in the range 0.8 keV to 10 keV [1]. It benefits from improvements in design over the previous generation of SCD (the e2v CCD54) [2] to allow for increased detector area, a reduction in split X-ray events and improvements to radiation hardness [3]. To enable the suppression of surface dark current th...

Recognition and Matching of Clustered Mature Litchi Fruits Using Binocular Charge-Coupled Device (CCD) Color Cameras

Recognition and matching of litchi fruits are critical steps for litchi harvesting robots to successfully grasp litchi. However, due to the randomness of litchi growth, such as clustered growth with uncertain number of fruits and random occlusion by leaves, branches and other fruits, the recognition and matching of the fruit become a challenge. Therefore, this study firstly defined mature litch...

The overlaid CCD : a bulk-integrated double-channel charge-coupled device

2014 A novel charge-coupled device structure operating by transferring charge packets on two distinct levels which are overlaid in the semiconductor bulk is described and analysed. This bulk-integrated device is twice as compact and has a reduced driving power consumption per bit, compared to conventional buried-channel CCD’s, still enjoying bulk-channel operation. Furthermore, the overlaid CCD...

Charge -coupled- device charge -collection efficiency and the photon- transfer technique

Charge-coupled device area x-ray detectors

Charge-coupled device ~CCD! area x-ray detector technology is reviewed. CCD detectors consist of a serial chain of signal components, such as phosphors, fiber optics or lenses, image intensifiers and the CCD which serve to convert the x-ray energy to light or electron-hole pairs and to record the spatially resolved image. The various combinations of components that have been used to make CCD de...