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Title: A direct electron detector for time-resolved MeV electron microscopy

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4977923· OSTI ID:1353207
 [1];  [2];  [1];  [2];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
+ Show Author Affiliations

The introduction of direct electron detectors enabled the structural biology revolution of cryogenic electron microscopy. Direct electron detectors are now expected to have a similarly dramatic impact on time-resolved MeV electron microscopy, particularly by enabling both spatial and temporal jitter correction. Here we report on the commissioning of a direct electron detector for time-resolved MeV electron microscopy. The direct electron detector demonstrated MeV single electron sensitivity and is capable of recording megapixel images at 180 Hz. The detector has a 15-bit dynamic range, better than 30-μm spatial resolution and less than 20 analogue-to-digital converter count RMS pixel noise. The unique capabilities of the direct electron detector and the data analysis required to take advantage of these capabilities are presented. The technical challenges associated with generating and processing large amounts of data are also discussed.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231
OSTI ID:
1353207
Alternate ID(s):
OSTI ID: 1373970; OSTI ID: 1459388
Journal Information:
Review of Scientific Instruments, Vol. 88, Issue 3; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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Cited By (4)

Theoretical study of ultrafast x-ray photoelectron diffraction from molecules undergoing photodissociation journal March 2018
Femtosecond gas-phase mega-electron-volt ultrafast electron diffraction journal September 2019
Time-resolved photoelectron angular distributions from nonadiabatically aligned CO 2 molecules with SX-FEL at SACLA journal November 2018
Liquid-phase mega-electron-volt ultrafast electron diffraction journal March 2020

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