Micro-array collimators for X-rays and neutrons

被引：0

作者：

Cimmino, A ^{[1
]}

Allman, BE ^{[1
]}

Klein, AG ^{[1
]}

Hamilton, WA ^{[1
]}

Anderson, IS ^{[1
]}

Hamelin, B ^{[1
]}

Hoghoj, P ^{[1
]}

Bastie, P ^{[1
]}

机构：

[1] Univ Melbourne, Sch Phys, Parkville, Vic 3052, Australia

来源：

MICROMACHINING AND MICROFABRICATION PROCESS TECHNOLOGY IV | 1998年 / 3511卷

关键词：

Soller collimators; neutron optics; X-ray optics;

D O I：

10.1117/12.324325

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe the fabrication techniques of novel, compact optical elements for collimating and/or focussing beams of X-rays or thermal neutrons. These optical elements are solid composite arrays consisting of regular stacks of alternating micro-foils, analogous in action to Seller slit collimators, but up to three orders of magnitude smaller. The arrays are made of alternating metals with suitable refractive indices for reflection and/or absorption of the specific radiation. In one implementation, the arrays are made of stacked micro-foils of transmissive elements (Al, Cu) coated and/or electroplated with absorbing elements (Gd, Cd), which are repeatedly rolled or drawn and restacked to achieve the required collimation parameters. We present results of these collimators using both X-rays and neutrons. The performance of the collimating element is limited only by the choice of micro-foil materials and the uniformity of their interfaces.

引用

页码：376 / 384

页数：9