Abstract
In order to solve the problem of fast neutron fluence rate real-time measurement in intense neutron-gamma mixed field, a new neutron fluence rate measurement scheme based on recoil proton method and semi-insulating (SI) GaN detector was proposed. The compensation current parallel structure with graphite balancer and polyethyene converting target for fast neutron fluence rate detection, which effectively reduced the interference of γ ray and improved detection sensitivity of neutron radiation, was used in this scheme. This fast neutron fluence rate measurement scheme was implemented in the mixed field of Xi'an Pulsed Reactor 1# radial channel, and the results show consistency with previous measurement results and the validity of the scheme.
| Original language | English |
|---|---|
| Pages (from-to) | 2359-2363 |
| Number of pages | 5 |
| Journal | Yuanzineng Kexue Jishu/Atomic Energy Science and Technology |
| Volume | 48 |
| Issue number | 12 |
| DOIs | |
| State | Published - 20 Dec 2014 |
| Externally published | Yes |
Keywords
- Compensation current parallel structure
- Fast neutron fluence rate
- Neutron-gamma mixed field
- Recoil proton method
- Wide-band semiconductor
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