Quantum efficiency of gold photocathodes (2–8 keV) and EXAFS in its secondary electron yield and in the detection currents of a microchannel plate and a silicon surface barrier detector
- 1 November 1988
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 59 (11) , 2453-2456
- https://doi.org/10.1063/1.1139925
Abstract
The quantum efficiency of gold photocathodes has been investigated by using synchrotron radiation from 2–8 keV; in particular its detailed structure near the M absorption edge region is obtained. The secondary electron conversion efficiency of gold has been calculated by using the mass absorption coefficient given by a relativistic Hartree‐Slater model and by the semiempirical values of Henke et al., respectively. These data are compared with the published data at some discrete energies, and we add several new data points, especially for the gold M edge region (2–4 keV). X‐ray absorption fine structure (EXAFS) has been observed in the secondary electron current of the gold photocathode as well as in the detection current responses of a microchannel plate and a silicon surface barrier detector.Keywords
This publication has 15 references indexed in Scilit:
- Current response characteristics of microchannel plates x-ray detector using synchrotron radiation (0.6–2 keV and 5–20 keV)Review of Scientific Instruments, 1988
- X-ray attenuation cross sections for energies 100 eV to 100 keV and elements Z = 1 to Z = 92Atomic Data and Nuclear Data Tables, 1988
- Observation of hot electrons produced by second harmonic electron cyclotron heating in the axisymmetric tandem mirror GAMMA 10Nuclear Fusion, 1987
- Plasma Current Sustainment and Ramp-Up by Electron Cyclotron Waves in the WT-2 TokamakJournal of the Physics Society Japan, 1986
- Plasma Current Generation and Sustainment by Electron Cyclotron Waves in the WT-2 TokamakPhysical Review Letters, 1986
- Toroidal plasma production by electron cyclotron heating in the WT-2 deviceNuclear Fusion, 1986
- Thermal Barrier Formation and Plasma Confinement in the Axisymmetrized Tandem Mirror GAMMA 10Physical Review Letters, 1985
- Toroidal Plasma Current Start-Up and Sustainment by rf in the WT-2 Toroidal DeviceJournal of the Physics Society Japan, 1984
- Toroidal Plasma Current Startup and Sustainment by rf in the WT-2 TokamakPhysical Review Letters, 1983
- Soft x-ray imaging instrument for the Alcator A tokamakReview of Scientific Instruments, 1980