Tuesday, March 21, 2017

e2v Whitepaper on CCD QE in the Soft X-Ray Range

e2v publishes a nice paper explaining CCD properties in soft X-Ray band. Few quotes:


"On average, 3.6 eV is required for each free signal electron emitted from the silicon atom after absorption of an X-ray photon [20], with variance as per the Fano factor. The complete absorption of a 500 eV X-ray photon produces on average approximately (500 / 3.6) = 139 signal electrons, but a large number of steps are involved in this absorption."

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