Imaging and spectroscopy using a scintillator-coupled EMCCD

نویسندگان

  • David J. Hall
  • Andrew Holland
  • David R. Smith
چکیده

The CCD97 is a low light level (L3) device from e2v technologies range of electron multiplying CCDs (EMCCDs). The device uses e2v’s patented extended gain register and through the use of appropriately designed electrodes can be used to maximise the signal whilst keeping the impact of the noise to a minimum. The nature of this device makes it ideal for use with a scintillator in order to see individual flashes of light from single X-ray photons. Through the examination of individual X-ray events, it is possible to analyse each interaction in the scintillator to determine the sub-pixel position of the interaction. Using the modelling capabilities of the Geant4 toolkit it is possible to simulate X-ray events and thus examine interactions with known energy and point of interaction. Through bringing together the experimental and simulated results, the spectral capabilities of such a device are discussed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The use of automatic scale selection to improve the spatial and spectral resolution of a scintillator-coupledEMCCD

The technology behind the Electron-Multiplying Charge Coupled Device (EMCCD) was successfully exploited by e2v technologies in the late 1990s. Since then, many uses have been found for these low light level (L3) devices including surveillance and many scientific applications. The EMCCD increases or ‘multiplies’ the charge signal by the phenomenon of impact ionisation (or avalanche multiplicatio...

متن کامل

High resolution x-ray and -ray imaging using a scintillator-coupled electron-multiplying CCD

Over the last decade the rapid advancements in CCD technology have lead to significant developments in the field of low-light-level, Electron-Multiplying CCDs (EM-CCDs). The addition of a gain register before output allows signal electrons to be multiplied without increasing the external noise. This low effective readout noise, which can be reduced to the sub-electron level, allows very small s...

متن کامل

On the use of electron-multiplying CCDs for astronomical spectroscopy

Conventional CCD detectors have two major disadvantages: they are slow to read out and they suffer from read noise. These problems combine to make high-speed spectroscopy of faint targets the most demanding of astronomical observations. It is possible to overcome these weaknesses by using electron-multiplying CCDs (EMCCDs). EMCCDs are conventional frame-transfer CCDs, but with an extended seria...

متن کامل

A Stochastic Model for Electron Multiplication Charge-Coupled Devices – From Theory to Practice

Electron multiplication charge-coupled devices (EMCCD) are widely used for photon counting experiments and measurements of low intensity light sources, and are extensively employed in biological fluorescence imaging applications. These devices have a complex statistical behaviour that is often not fully considered in the analysis of EMCCD data. Robust and optimal analysis of EMCCD images requir...

متن کامل

Supplementary Material: Wide-field multispectral super-resolution imaging using spin-dependent fluorescence in nanodiamonds

Autocorrelation of two NV site in bulk diamond In Fig. S1, we show the autocorrelation of the site shown in Fig. 2 of the main text. The anti-bunching dip of the normalized second order auto-correlation (g2(τ) = 0.66) therefore confirms the presence of no more than two emitters accounting for background. Single NV− saturation curves on both an APD and emCCD In Fig. S2, we show the fluorescence ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013