TY - JOUR
T1 - Charge diffusion in CCD X-ray detectors
AU - Pavlov, George G.
AU - Nousek, John A.
N1 - Funding Information:
We thank Dr. Leisa Townsley for a careful reading of the manuscript, and constructive suggestions based on her analysis of the ACIS calibration data. We also thank Prof. Gordon Garmire for his scientific direction of the ACIS project, and providing financial support for this study under NASA contract NAS8-38252.
PY - 1999/6
Y1 - 1999/6
N2 - Critical to the detection of X-rays by CCDs, is the detailed process of charge diffusion and drift within the device. We reexamine the prescriptions currently used in the modeling of X-ray CCD detectors to provide analytic expressions for the charge distribution over the CCD pixels which are suitable for use in numerical simulations of CCD response. Our treatment results in models which predict charge distributions which are more centrally peaked and have flatter wings than the Gaussian shapes predicted by previous work and adopted in current CCD modeling codes.
AB - Critical to the detection of X-rays by CCDs, is the detailed process of charge diffusion and drift within the device. We reexamine the prescriptions currently used in the modeling of X-ray CCD detectors to provide analytic expressions for the charge distribution over the CCD pixels which are suitable for use in numerical simulations of CCD response. Our treatment results in models which predict charge distributions which are more centrally peaked and have flatter wings than the Gaussian shapes predicted by previous work and adopted in current CCD modeling codes.
UR - http://www.scopus.com/inward/record.url?scp=0032652425&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032652425&partnerID=8YFLogxK
U2 - 10.1016/S0168-9002(99)00045-5
DO - 10.1016/S0168-9002(99)00045-5
M3 - Article
AN - SCOPUS:0032652425
VL - 428
SP - 348
EP - 366
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 2
ER -