skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Analysis and mitigation of an oscillating background on hybrid complementary metal-oxide semiconductor (hCMOS) imaging sensors at the National Ignition Facility

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/5.0165487· OSTI ID:2282426
ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  2. Advanced hCMOS Systems, Albuquerque, NM (United States)

Nanosecond-gated hybrid complementary metal-oxide semiconductor imaging sensors are a powerful tool for temporally gated and spatially resolved measurements in high energy density science, including inertial confinement fusion, and in laser diagnostics. However, a significant oscillating background excited by photocurrent has been observed in image sequences during testing and in experiments at the National Ignition Facility (NIF). Characterization measurements and simulation results are used to explain the oscillations as the convolution of the pixel-level sensor response with a sensor-wide RLC circuit ringing. Finally, data correction techniques are discussed for NIF diagnostics, and for diagnostics where these techniques cannot be used, a proof-of-principle image correction algorithm is presented.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
2282426
Report Number(s):
LLNL-JRNL-850653; 1076557
Journal Information:
Review of Scientific Instruments, Vol. 94, Issue 12; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (16)

An overview of the Ultrafast X-ray Imager (UXI) program at Sandia Labs conference August 2015
Design and characterization of an improved 2 ns multi-frame imager for the ultra-fast x-ray imager (UXI) program at Sandia National Laboratories conference September 2017
Performance characterization of a four-frame nanosecond gated hybrid CMOS image sensor conference September 2018
Design and characterization of a novel 1-ns multi-frame imager for the Ultra-Fast X-ray Imager (UXI) program at Sandia National Laboratories conference September 2018
Time-gated measurements of fusion-class laser beam profiles conference February 2020
Upgrade of the gated laser entrance hole imager G-LEH-2 on the National Ignition Facility journal March 2021
Sub-nanosecond single line-of-sight (SLOS) x-ray imagers (invited) journal October 2018
Z opacity sample evolution using time-resolved spectroscopy with a gated hybrid CMOS detector.
  • Loisel, Guillaume; Bailey, James; Nagayama, Taisuke
  • Proposed for presentation at the American Physical Society 62nd Division of Plasma Physics Meeting held November 9-12, 2020 in albuquerque, NM. https://doi.org/10.2172/1830898
conference November 2020
The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA journal October 2018
First x-ray test of the Icarus nanosecond-gated camera
  • Hart, Philip A.; Carpenter, Andrew C.; Claus, Liam D.
  • X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation V https://doi.org/10.1117/12.2520974
conference May 2019
Characterization of the hardened single line of sight camera at the National Ignition Facility journal August 2022
Timing characterization of fast hCMOS sensors journal April 2021
Detector thickness effects on nanosecond-gated imager response journal May 2021
The electron detection performance of the “Icarus” hCMOS imaging sensor conference September 2021
Time-resolved X-ray diffraction diagnostic development for the National Ignition Facility journal January 2024
Dante soft x-ray power diagnostic for National Ignition Facility journal October 2004