کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1828528 1526477 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A polarizing neutron periscope for neutron imaging
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
A polarizing neutron periscope for neutron imaging
چکیده انگلیسی

Optical neutron polarizers like guides or benders destroy the collimation of a neutron beam due to multiple reflections or scattering. This makes them unsuitable for their use in polarized neutron radiography, because the beam collimation is essential to obtain high spatial resolution. We have developed a neutron polarizer based on the principle of an optical periscope with a zigzag double reflection on two parallel high-m supermirror polarizers. If the supermirrors are perfectly parallel and flat, the beam collimation is left unchanged by such a device. A first proof of concept version of this type of polarizer was built and tested. We expect to achieve a beam polarization of up to 99% with an improved version yet to be built.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 605, Issues 1–2, 21 June 2009, Pages 43–46
نویسندگان
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