Development of Small Neutron Generator for Well Logging

Key words: 
• well logging /
• ion source /
• neutron generator

Abstract: A small neutron generator has been developed for meeting the need of well logging in oil fields. The miniature cold cathode Penning ion source and single electrode ion optics system are used in neutron generator. The good performance of the generator has been proved in the laboratory test and well logging in oil field. The generator has good characteristics， such as small diameter， high temperature resistant，high neutron output and good stability. At present， the neutron generator is the smallest logging generator in China， which has been used in oil field generally for conforming the geological data.