Results 161 to 170 of about 5,142,934 (219)

Electron Spectral Contribution of Prompt-Response Self-Powered Neutron Detectors

1989
In the present work we use a new model for calculating the effective charge induced per neutron capture in a prompt-response Self-Powered Neutron Detector (SPND). This charge is written as the integral over all possible energies of the spectral function S(E) weighted with the electron spectral contribution ∑(E).
M Carmo Lopes, J Molina Avila
exaly   +2 more sources

Review of self-powered neutron detectors for reactor instrumentation

Progress in Nuclear Energy
Lei Cao
exaly   +2 more sources

Development of self-powered neutron detectors for neutron flux monitoring in HCLL and HCPB ITER-TBM

Fusion Engineering and Design, 2014
Self powered neutron detectors (SPND) have a number of interesting properties (e.g. small dimensions, capability to operate in harsh environments, absence of external bias), so they are attractive neutron monitors for TBM in ITER.
Mario Pillon, Alfonso Santagata, Maurizio Angelone   +2 more
exaly   +3 more sources

Calibration of Self-Powered Neutron Detectors

Nuclear Science and Engineering, 1983
The thermal neutron sensitivities of 231Rh self-powered neutron detectors were measured in a 1-MW(thermal) pool-type reactor.
M. F. Sulcoski, H. D. Warren
openaire   +1 more source

Layout Optimization of Self-Powered Neutron Detector for HPR1000

Volume 15: Student Paper Competition, 2022
Abstract Self-Powered Neutron Detector (SPND) has been widely applied for the on-line monitoring of the key core parameters, including the power distribution, power-peak factor and so on. For the SPND layout design, the vital parameters include the SPND amount and loading position in the radial direction and segment amount in the axial ...
Yao Zhou, Liangzhi Cao, Changyou Zhao, Zhifeng Li, Yuxiang Zhu   +4 more
openaire   +1 more source

Neutron sensitivity of vanadium self powered neutron detectors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986
Abstract The neutron sensitivity of vanadium self powered neutron detectors (Type 5503-B), manufactured by Studsvik, Sweden, has been measured. Using the calculational model developed by Warren, the neutron sensitivity of these detectors has been computed taking into account additional factors viz.
P.S. Rao, S.C. Misra
openaire   +1 more source

Transient response of self-powered neutron detectors

Nuclear Instruments and Methods, 1975
Abstract The behaviour of self-powered neutron detectors with Co, Er, Hf and Pt emitters was investigated during reactor square wave and pulse operation. The detector's response was compared with the current of an excore ionization chamber. Characteristical deviations from linearity were observed with all detectors at fast reactor periods.
H. Böck, P. Gebureck, D. Stegemann
openaire   +1 more source

Characterization of hybrid self-powered neutron detector under neutron irradiation

Fusion Engineering and Design, 2000
Abstract To evaluate the irradiation behaviour of a blanket mock-up on in-pile functional test, it is necessary to measure the neutron flux change in the in-pile mock-up by a neutron detector, such as the self-powered neutron detector (SPND). With its small-sized emitter, which has high sensitivity and fast response time, SPND is an indispensable ...
M Nakamichi, Y Nagao, C Yamamura, M Nakazawa, H Kawamura   +4 more
openaire   +1 more source

Dynamic Compensation of Rhodium Self Powered Neutron Detectors

IEEE Transactions on Nuclear Science, 1976
A mathematical model of a rhodium self-powered neutron detector has been developed to investigate the detector transfer function and to apply this transfer function as compensation for the inherent time delay in the rhodium-neutron interaction. The various reactions that comprise the detector signal have been evaluated experimentally and the resultant ...
L. A. Banda, B. I. Nappi
openaire   +1 more source

Differential sensitivity of long self-powered neutron detectors

Nuclear Instruments and Methods, 1970
Abstract Measurements of the differential sensitivity of two 3.3 m long rhodium detectors are presented. The detectors are to be used in connection with an experiment in the Oskarshamn I reactor for integration of the thermal neutron flux over the full fuel length.
O. Strindehag, B. Söderlund
openaire   +1 more source