Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You and Your Team.

Learn More →

A Measuring System for Time of Flight Spectrum of Neutron Based on Pulse Time Sequences Detection

A Measuring System for Time of Flight Spectrum of Neutron Based on Pulse Time Sequences Detection To measure the time of flight (TOF) spectrum for the 252Cf fission neutron, a TOF measuring system based on the detected time sequences of neutron pulse has been proposed and set up. A 252Cf fast ionization chamber combined with traditional electronic circuit is applied in the system to form the neutron flight pulse signals. It can not only detect the pulse sequence on-line with 1 nanosecond precision, but also realize time-digital-convertion simultaneously. The cross correlation function is to calculate the measured spectrum and the numerical statistics of the flight time of neutron and γ photons are sent to PC and obtained through data processing. Meanwhile, the timing precision of the system can be judged by the γ-shape. The distinguishing neutron vs. γ-photons (n-γ) can also be achieved by setting a delaying factor. Experimental results show that the proposed system can accurately obtain the TOF spectrum whose precision is better than that of the traditional measuring system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Physics Frontier Ivy Publisher

A Measuring System for Time of Flight Spectrum of Neutron Based on Pulse Time Sequences Detection

Applied Physics Frontier , Volume 1 (3) – Aug 1, 2013

Loading next page...
 
/lp/ivy-publisher/a-measuring-system-for-time-of-flight-spectrum-of-neutron-based-on-wCfZXUXcdw
Publisher
Ivy Publisher
Copyright
Ivy Publishing
ISSN
2327-4131
eISSN
2327-4212
Publisher site
See Article on Publisher Site

Abstract

To measure the time of flight (TOF) spectrum for the 252Cf fission neutron, a TOF measuring system based on the detected time sequences of neutron pulse has been proposed and set up. A 252Cf fast ionization chamber combined with traditional electronic circuit is applied in the system to form the neutron flight pulse signals. It can not only detect the pulse sequence on-line with 1 nanosecond precision, but also realize time-digital-convertion simultaneously. The cross correlation function is to calculate the measured spectrum and the numerical statistics of the flight time of neutron and γ photons are sent to PC and obtained through data processing. Meanwhile, the timing precision of the system can be judged by the γ-shape. The distinguishing neutron vs. γ-photons (n-γ) can also be achieved by setting a delaying factor. Experimental results show that the proposed system can accurately obtain the TOF spectrum whose precision is better than that of the traditional measuring system.

Journal

Applied Physics FrontierIvy Publisher

Published: Aug 1, 2013

Keywords: 252Cf Source Neutron; TOF Spectrum; Nanosecond Precision; Pulse Sequences Detecting; Correlation Function

There are no references for this article.