Results 171 to 180 of about 5,353,294 (221)
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Differential sensitivity of long self-powered neutron detectors
Nuclear Instruments and Methods, 1970Abstract 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
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Transient response of cobalt self-powered neutron detectors
Nuclear Instruments and Methods, 1970Abstract In the TRIGA reactor in Vienna the transient response of a self-powered detector with cobalt emitter has been studied.
H. Böck, M. Stimler, O. Strindehag
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Self-Powered Neutron Detectors for Measuring Epithermal Neutron Flux
1989Self-powered neutron detectors (SPNDs) with erbium, hafnium, gadolinium, rhodium, silver, and cobalt emitters have been irradiated in several different neutron and gamma spectra obtained by a variety of filters: cadmium, gadolinium, boron, lead, zirconium, aluminum, or light water.
MN Agu, H Petitcolas
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Development and verification of a simulation toolkit for Self-Powered Neutron Detector
Annals of Nuclear Energy, 2021Abstract A response simulation toolkit ‘SPNDSignal’ based on Geant4 was developed and verified. SPNDSignal adopts Monte-Carlo method to simulate the coupled neutron-gamma-electron transportation in SPND, and the important physical parameters such as neutron sensitivity and current components can be obtained.
Yaodong Sang +6 more
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A novel solid state self-powered neutron detector
SPIE Proceedings, 2008Detection of nuclear materials is critical in preventing traffic of illicit nuclear materials. Several methods that are based on detection of spontaneous or induced emission of fission neutron are considered. Efficient fast and thermal neutron detectors are generally required.
Nicholas LiCausi +4 more
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Calculational Model for Self-Powered Neutron Detector
Nuclear Science and Engineering, 1972A calculational model is presented for the self-powered neutron detector of the type used in nuclear reactor cores.
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Self powered neutron detectors as in-core detectors for Sodium-cooled Fast Reactors
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2017Abstract Neutron flux monitoring system forms an integral part of the design of a Generation IV sodium cooled fast reactor. Diverse possibilities of detector system installation must be studied for various locations in the reactor vessel in order to detect any perturbations in the core.
V. Verma +5 more
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Charge Released by Beta-Decaying Self-Powered Neutron Detectors
Nuclear Science and Engineering, 1976An equation for the total charge available for release from unit length of an emitter undergoing beta-particle decay in a self-powered neutron detector is derived. This derivation is based on a calculational model of the current response of a self-powered neutron detector developed earlier.
H. D. Warren, N. L. Snidow
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Irradiation tests of prototype self-powered gamma and neutron detectors
2011 2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications, 2011In the framework of the SCK·CEN-CEA Joint Instrumentation Laboratory, we are developing and optimizing a self-powered detector for selective in-core monitoring of the gamma field. Several prototypes with bismuth emitters were developed and tested in a pure gamma field (the PAGURE gamma irradiation facility at CEA) and in mixed neutron and gamma fields (
L. Vermeeren +5 more
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Self-Powered Detector Response to Thermal and Epithermal Neutron Flux
Nuclear Science and Engineering, 1991This paper reports on theoretical and experimental studies of various self-powered neutron detectors that are carried out. Among the emitter materials studied are cobalt, hafnium, erbium, silver, rhodium, and gadolinium.
M. N. Agu, H. Petitcolas
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