Results 131 to 140 of about 384 (152)

Precise Control of Neutron Irradiation Fluence in the Neutron Transmutation Doping Process at HANARO Using SPND and Zirconium Foils

IEEE Transactions on Nuclear Science, 2016
A neutron irradiation control method using a self-powered neutron detector (SPND) and zirconium foils was developed for neutron transmutation doping (NTD) application at HANARO. An SPND was installed at a fixed position of the upper part of the sleeve at the HANARO NTD hole for real-time monitoring of the neutron irradiation. The SPND signal output was
Myong-Seop Kim, Gi-Doo Kang
exaly   +2 more sources

Uncertainty quantification of the SPND dynamic model based on non-intrusive polynomial chaos method

Annals of Nuclear Energy, 2019
Abstract Self-Powered Neutron Detectors (SPNDs) are widely used in nuclear reactors to monitor the core neutron flux distribution and to provide meaningful information for regulation and protection of the reactor. In this paper we present the implementation and the application of Non-Intrusive Polynomial Chaos (NIPC) method for uncertainty analysis ...
Yingrui Yu
exaly   +2 more sources

Numerical simulation of Delayed-SPND response current in NECP-Bamboo

Annals of Nuclear Energy, 2022
Liangzhi Cao, Ruizhi Shao, Chenghui Wan
exaly   +2 more sources

A New Look at Incore Spnd Requirements

IEEE Transactions on Nuclear Science, 1979
H D Warren
exaly   +2 more sources

Simulation and experimental verification for Rh-SPND burnup effect

Annals of Nuclear Energy
Xiong Wu, Haoliang Lu
exaly   +2 more sources

A study on the sensitivity of self-powered neutron detectors (SPNDs)

IEEE Transactions on Nuclear Science, 2001
Self-powered neutron detectors (SPNDs) are widely used in reactors to monitor neutron flux, while they have several advantages such as small size, and relatively simple electronics required in conjunction with those usages, they have some intrinsic problems of the low level of output current-a slow response time and the rapid change of sensitivity-that
null Wanno Lee, null Gyunseong Cho, null Kwanghyun Kim, null Hee Joon Kim, null Yuseon Choi, null Moon Kyu Park, null Soongpyung Kim   +6 more
openaire   +1 more source

A fast numerical method for calculating SPND space charge effect at steady state

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Qingmin Zhang, Zhenchao Liu, Shiyu Liu
exaly   +2 more sources

Verification of PWR-Core power distribution based on precisely calculated SPND response currents

Nuclear Engineering and Design
Liangzhi Cao, Ruizhi Shao
exaly   +2 more sources

Adaptive, online models to detect and estimate gross error in SPNDs

2017 Indian Control Conference (ICC), 2017
In-core flux measurement is critical for monitoring and power regulation of a large core nuclear reactor. Self Powered Neutron Detectors (SPNDs) are used for measuring the neutron flux in a nuclear reactor. In this paper we propose an online method for SPND gross error detection, identification and estimation.
Arindam Bhattacharyya, Vivek Yogi, Sugandha Singla, Mani Bhushan, Mahendra G. Kelkar, Akhilanand P. Tiwari, Mahitosh Pramanik, Madhu N. Belur   +7 more
openaire   +1 more source

Burnup of rhodium SPND in VVER-1000: Method for determination of linear energy release by SPND readings

Physics of Atomic Nuclei, 2011
A method for determination of linear energy release of a VVER fuel assembly near a rhodium self-powered neutron detector (SPND) is described. The dependence of SPND burnup on the charge passing through it is specified.
openaire   +1 more source