Extension to cylindrical samples of the universal curve of resonance neutron self-shielding factors

被引：20

作者：

Gonçalves, IF ^{[1
]}

Martinho, E ^{[1
]}

Salgado, J ^{[1
]}

机构：

[1] Estrada Nacl 10, Inst Tecnol & Nucl, P-2686953 Sacavem, Portugal

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2004年 / 213卷

关键词：

epithermal neutrons; resonance self-shielding factor; MCNP code;

D O I：

10.1016/S0168-583X(03)01550-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Resonance neutron self-shielding factors for cylindrical samples of nuclides used as activation detectors or as targets for radionuclide production have been calculated using the MCNP code. These factors depend on the sample dimensions, as well as on the physical and nuclear properties of the nuclides. However, defining a dimensionless variable, which includes the relevant characteristics of the samples, it is possible to extend to cylinders a previously deduced universal curve for isolated resonances of any nuclide and samples of other geometries (foils, wires and spheres). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：186 / 188

页数：3

共 8 条

[1]

BRIESMEISTER JF, 2000, LA13709M MCNP GEN MO

[2]

GILAT J, 1963, NUCLEONICS, V8, P143

[3] Monte Carlo calculation of epithermal neutron resonance self-shielding factors in foils of different materials [J].

Gonçalves, IF ;

Martinho, E ;

Salgado, J .

APPLIED RADIATION AND ISOTOPES, 2002, 56 (06) :945-951

[4] Monte Carlo calculation of resonance self-shielding factors for epithermal neutron spectra [J].

Gonçalves, IF ;

Martinho, E ;

Salgado, J .

RADIATION PHYSICS AND CHEMISTRY, 2001, 61 (3-6) :461-462

[5] Monte Carlo calculation of epithermal neutron resonance self-shielding factors in wires of different materials [J].

Gonçalves, IF ;

Martinho, E ;

Salgado, J .

APPLIED RADIATION AND ISOTOPES, 2001, 55 (04) :447-451

[6] Universal curve of epithermal neutron resonance self-shielding factors in foils, wires and spheres [J].

Martinho, E ;

Gonçalves, IF ;

Salgado, J .

APPLIED RADIATION AND ISOTOPES, 2003, 58 (03) :371-375

[7]

SALGADO J, 2002, IRRMA 5 5 INT TOP M

[8]

Tuli JagdishK., 2000, NUCL WALLET CARDS, V6

← 1 →