Modeling charge collection in X-ray imagers

被引：0
|
作者：
Pinaroli, G. [1 ,2 ]
Palestri, P. [1 ]
Pilotto, A. [1 ]
Selmi, L. [1 ]
机构：
[1] Univ Udine, DPIA, Via Sci 206, Udine, UD, Italy
[2] ELETTRA Sincrotrone Trieste, SS 14 Km 163-5, Basovizza, TS, Italy
来源：
RADIATION DETECTORS IN MEDICINE, INDUSTRY, AND NATIONAL SECURITY XVIII | 2017年 / 10393卷
关键词：
TCAD Simulations; Detectors; X-Rays; Charge collection; Ramo therorem; CMOS; CCD;
D O I：
10.1117/12.2273923
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
We present a TCAD simulation-based investigation of charge transport and charge collection mechanisms of a pinned photodiode pixel for X-ray imaging. Following static simulations to determine the electric-field and potential profiles, charge collection was analyzed with transient numerical simulations. A new, simple and computationally affordable calculation based on the extension of Ramo's theorem to account for carrier diffusion is proposed to estimate the trajectories of the generated carriers and the corresponding currents at the device terminals. The new method is validated and successfully compared to the time-dependent TCAD simulations of a p-i-n diode and a template 3D pinned photodiode.
引用
收藏
页数：11
相关论文
共 50 条
  • [1] Modeling the imaging performance of prototype organic x-ray imagers
    Blakesley, J. C.
    Speller, R.
    MEDICAL PHYSICS, 2008, 35 (01) : 225 - 239
  • [2] Modeling and Measuring Charge-Sharing in Hard X-Ray Imagers using HEXITEC CdTe Detectors
    Ryan, Daniel F.
    Christe, Steven D.
    Shih, Albert Y.
    Baumgartner, Wayne H.
    Wilson, Matthew D.
    Seller, Paul
    Gaskin, Jessica A.
    Inglis, Andrew
    UV, X-RAY, AND GAMMA-RAY SPACE INSTRUMENTATION FOR ASTRONOMY XX, 2017, 10397
  • [3] CHARGE-COUPLED DEVICE IMAGERS FOR X-RAY AREA DETECTION
    ALLINSON, NM
    ACTA CRYSTALLOGRAPHICA SECTION A, 1984, 40 : C403 - C403
  • [4] Charge Collection and Propagation in Diamond X-Ray Detectors
    Keister, Jeffrey W.
    Smedley, John
    Dimitrov, Dimitre
    Busby, Richard
    2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5, 2009, : 2154 - +
  • [5] Charge Collection and Propagation in Diamond X-Ray Detectors
    Keister, Jeffrey W.
    Smedley, John
    Dimitrov, Dimitre
    Busby, Richard
    IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2010, 57 (04) : 2400 - 2404
  • [6] Charge collection and absorption-limited x-ray sensitivity of pixellated x-ray detectors
    Kabir, MZ
    Kasap, SO
    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2004, 22 (03): : 975 - 980
  • [7] Understanding the effects of charge diffusion in next-generation soft X-ray imagers
    Miller, Eric D.
    Prigozhin, Gregory Y.
    LaMarr, Beverly J.
    Bautz, Marshall W.
    Foster, Richard F.
    Grant, Catherine E.
    Lage, Craig S.
    Leitz, Christopher
    Malonis, Andrew
    SPACE TELESCOPES AND INSTRUMENTATION 2022: ULTRAVIOLET TO GAMMA RAY, 2022, 12181
  • [8] Developments in X-ray and astronomical CCD imagers
    Gregory, JA
    Burke, BE
    Kosicki, BB
    Reich, RK
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999, 436 (1-2): : 1 - 8
  • [9] Pixel Readout Circuit for X-Ray Imagers
    Gerardo Rocha, J.
    Minas, G.
    Lanceros-Mendez, S.
    IEEE SENSORS JOURNAL, 2010, 10 (11) : 1740 - 1745
  • [10] Solid-state X-ray imagers
    Izumi, Y
    Yamane, Y
    MRS BULLETIN, 2002, 27 (11) : 889 - 893
12345