Use of primary electron counting for detection of ultrasoft x-rays with a low-pressure multistep gaseous detector

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1145679· OSTI ID:6597567

Milne, J C; Johnson, E D; Smith, G C ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

The use of primary electron counting techniques as an alternative to the more usual parallel plate avalanche chamber that has been employed in soft x-ray scattering experiments is being investigated at the National Synchrotron Light Source. The theoretical aspects of primary electron counting and motivation behind building a primary electron counting detector are described, as well as characteristics and future improvements of the device constructed at the NSLS. The detector consists of a low electric field drift region and a low pressure multistep avalanche region which can be operated with two or three stages of electron multiplication. The device has worked well in extensive tests as a simple parallel plate avalanche chamber, providing energy resolutions of 58% and 43% at 277 and 500 eV, respectively. Operated as a primary electron counter, preliminary results show an energy resolution of 38% at 500 eV.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6597567
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 66:2; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
AMPLIFICATION
CYCLIC ACCELERATORS
DETECTION
ELECTROMAGNETIC RADIATION
ELECTRON MULTIPLIERS
ELECTRON TUBES
ENERGY RESOLUTION
FLUCTUATIONS
GAIN
IONIZING RADIATIONS
MEASURING INSTRUMENTS
NSLS
PROPORTIONAL COUNTERS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
RADIATIONS
RESOLUTION
SOFT X RADIATION
SYNCHROTRON RADIATION SOURCES
SYNCHROTRONS
VARIATIONS
X RADIATION
X-RAY DETECTION