Abstract
The present work deals with measurements of the neutron spectrum emitted from a neutron guide tube (NGT) recently installed at one of the ETRR-1 reactor horizontal channels designed to deliver thermal neutrons, free from fast neutrons and gamma ray background, to a fourier reverse-time-of-flight (RTOF) diffractometer. The measurements were performed using a {sup 6} Li glass scintillation detector combined with a multichannel analyzer set at channel width 4 M sec and installed at 3.4 m from a disc Fermi chopper. Also a theoretical model was specially developed for the neutron spectrum calculations. According to the model developed, the spectrum calculated was found to be in good agreement with the measured one. It was found, both from measurements and calculations, that the spectrum emitted from the NGT covers, after transmission through a fourier chopper, neutron wavelengths from 1-4 A adequate for neutron diffraction measurements at D values between 0.71-2.9 A respectively. 6 FIGS.
Maayouf, R M.A.;
El-Sayed, L A.A.;
El-Kady, A S.I.
[1]
- Reactor and Neutron Physics Dept., NRC, Atomic Energy Authority, Cairo (Egypt)
Citation Formats
Maayouf, R M.A., El-Sayed, L A.A., and El-Kady, A S.I.
Neutron spectrum measurements from a neutron guide tube facility at the ETRR-1 reactor.
Egypt: N. p.,
1996.
Web.
Maayouf, R M.A., El-Sayed, L A.A., & El-Kady, A S.I.
Neutron spectrum measurements from a neutron guide tube facility at the ETRR-1 reactor.
Egypt.
Maayouf, R M.A., El-Sayed, L A.A., and El-Kady, A S.I.
1996.
"Neutron spectrum measurements from a neutron guide tube facility at the ETRR-1 reactor."
Egypt.
@misc{etde_521455,
title = {Neutron spectrum measurements from a neutron guide tube facility at the ETRR-1 reactor}
author = {Maayouf, R M.A., El-Sayed, L A.A., and El-Kady, A S.I.}
abstractNote = {The present work deals with measurements of the neutron spectrum emitted from a neutron guide tube (NGT) recently installed at one of the ETRR-1 reactor horizontal channels designed to deliver thermal neutrons, free from fast neutrons and gamma ray background, to a fourier reverse-time-of-flight (RTOF) diffractometer. The measurements were performed using a {sup 6} Li glass scintillation detector combined with a multichannel analyzer set at channel width 4 M sec and installed at 3.4 m from a disc Fermi chopper. Also a theoretical model was specially developed for the neutron spectrum calculations. According to the model developed, the spectrum calculated was found to be in good agreement with the measured one. It was found, both from measurements and calculations, that the spectrum emitted from the NGT covers, after transmission through a fourier chopper, neutron wavelengths from 1-4 A adequate for neutron diffraction measurements at D values between 0.71-2.9 A respectively. 6 FIGS.}
place = {Egypt}
year = {1996}
month = {Dec}
}
title = {Neutron spectrum measurements from a neutron guide tube facility at the ETRR-1 reactor}
author = {Maayouf, R M.A., El-Sayed, L A.A., and El-Kady, A S.I.}
abstractNote = {The present work deals with measurements of the neutron spectrum emitted from a neutron guide tube (NGT) recently installed at one of the ETRR-1 reactor horizontal channels designed to deliver thermal neutrons, free from fast neutrons and gamma ray background, to a fourier reverse-time-of-flight (RTOF) diffractometer. The measurements were performed using a {sup 6} Li glass scintillation detector combined with a multichannel analyzer set at channel width 4 M sec and installed at 3.4 m from a disc Fermi chopper. Also a theoretical model was specially developed for the neutron spectrum calculations. According to the model developed, the spectrum calculated was found to be in good agreement with the measured one. It was found, both from measurements and calculations, that the spectrum emitted from the NGT covers, after transmission through a fourier chopper, neutron wavelengths from 1-4 A adequate for neutron diffraction measurements at D values between 0.71-2.9 A respectively. 6 FIGS.}
place = {Egypt}
year = {1996}
month = {Dec}
}