CHARACTERIZATION OF THE SOURCE NEUTRONS PRODUCED BY THE FRASCATI NEUTRON GENERATOR

被引：11

作者：

PILLON, M

ANGELONE, M

MARTONE, M

RADO, V

机构：

[1] Associazione EURATOM-ENEA sulla Fusione, ENEA C.R.E Frascati, 00044 Frascati, Rome

来源：

FUSION ENGINEERING AND DESIGN | 1995年 / 28卷

关键词：

D O I：

10.1016/0920-3796(95)90098-5

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Integral experiments with a neutron source based on the T(d,n)alpha reaction require a good knowledge of the source neutron distribution. The source neutrons are energy-angle distributed with an energy spread of a few mega-electron-volts and anisotropy emission of a few percent. The characterization of the 14-MeV neutron source of the Frascati Neutron Generator (FNG) has been carried out using an absolutely calibrated U-Nat microfission chamber with plane electrodes and Nb-93(n,2n)Nb-92m activation reaction. The reaction rates have been measured at different angles with respect to the beam direction. The experimental results are compared with the corresponding quantities calculated by using a Monte Carlo code (MCNP) with an ''ad hoc'' source model. The calculated neutron emission reproduces the measured one satisfactorily well. Improvement of the source model used is discussed.

引用

页码：683 / 688

页数：6

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