Scintillator Response Characteristics to Low-Energy X-Rays.
Abstract
The response of the organic scintillator, NE111, to subnanosecond pulses of low-energy x-rays was studied as a function of fluorescence emission wavelength. The characteristic emission spectra of a matrix of NE111 doped with benzophenone, acetophenone, and piperidine each at concentrations of 0, 2, 5 and 10 percent were measured using low-energy DC-electron excitation and a Mark V, 0.5-m, Jarrell-Ash spectrograph. In addition, absorption spectra covering the region of 300 to 500 nm were accumulated using a Cary Recording Spectrometer (Model 14). A series of response measurements were performed in which the emission spectrum incident on a detection system was filtered by selected narrow band (< approximately 10 nm) filters. The scintillator fluorescence was excited by 0.2-ns pulses of x-rays (< or = 2 keV) produced in a laser plasma with the LPARL Nd:glass laser facility. Fast-time response measurements were performed using an S20 streak camera. In addition, the ratio of the integral of the emitted fluorescence in the first 8 ns to the integral out to 1 s was determine as a function of emission wavelength.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1978
- Accession Number
- ADA081720
Entities
People
- J. G. Pronko
- L. F. Chase
- T. R. Fisher
Organizations
- Lockheed Martin Missiles and Space