Multi-element refractive X-ray lenses
Purpose
Multiple-element refractive ray lenses are designed to focus X-ray with photons energy in the range from 5 keV to 20 keV in micron and submicron spots. They can be used to form objects imaging in X-rays.
Features
The lenses are made in the form of a glass capillary filled with a predetermined number N of epoxy biconcave spherical microlenses. The radius of curvature of a microlenses R coincides with the radius of the capillary channel. Focal length of the lens F is calculated using the following formula),: F = R / (2N where R-radius of curvature of the microlens, N-number of microlenses (1-b) - real part of the complex refractive index n = 1 - iβ.- For epoxy resin, the parameter = 3,78 10-6 for photons with an energy of 8 keV.
The number of microlenses, N: 50 to 300;
- Radius of curvature of separate microlenses R: from 50 μm to 250 μm;
- A multi-element lens focal length (N = 150, R = 50 mm) for photons with an energy of about 50 keV 8 mm.
High-radiation resistance
Have a short focal length compared to the analogues
These lenses have a short focal length compared to that of the analogues. The main advantage of short X-ray lenses is that they enable work with laboratory sources of radiation ( X-ray tubes ) and make it possible to focus the X-rays from a free electron laser into a spot of smaller sizes.
Optical parameters of the X-ray lenses were tested on the following synchrotrons : SPring- 8 (Japan ), SSRL ( USA ), APS ( U.S. ), ANKA ( Germany ), ESRF ( France), Kurchatov synchrotron , Synchrotron in Hefei ( China ), Synchrotron in Shanghai ( China). It was found that the X-ray lens focusing into a spot having size of 1-2 microns, while the theoretically possible limit is 1 micron and less.
A multi-element X-ray refractive lens is designed to generate X-ray beams and can be used for research in nanomaterials and nanotechnology as:
- a device for focusing of X-rays
- field-lens of X-ray microscope
- a device for the implementation of Fourier spatial transformation
The designed lenses are an imaging device and as lens s for the visible spectral range can be used for imaging of objects in X-rays.
NTP Protection:
Quality Management System of the Belarusian State University was certified for compliance with international quality standards DIN EN ISO 9001:2008, reg.nomer QMS-00080 of 22.06.2010
Application
X-ray microscopy, imaging of X-ray sources, X-rays focusing
Offer: manufacturing and supply of X-ray lenses with the given parameters
Multiple-element refractive ray lenses are designed to focus X-ray with photons energy in the range from 5 keV to 20 keV in micron and submicron spots. They can be used to form objects imaging in X-rays.
Features
The lenses are made in the form of a glass capillary filled with a predetermined number N of epoxy biconcave spherical microlenses. The radius of curvature of a microlenses R coincides with the radius of the capillary channel. Focal length of the lens F is calculated using the following formula),: F = R / (2N where R-radius of curvature of the microlens, N-number of microlenses (1-b) - real part of the complex refractive index n = 1 - iβ.- For epoxy resin, the parameter = 3,78 10-6 for photons with an energy of 8 keV.
The number of microlenses, N: 50 to 300;
- Radius of curvature of separate microlenses R: from 50 μm to 250 μm;
- A multi-element lens focal length (N = 150, R = 50 mm) for photons with an energy of about 50 keV 8 mm.
High-radiation resistance
Have a short focal length compared to the analogues
These lenses have a short focal length compared to that of the analogues. The main advantage of short X-ray lenses is that they enable work with laboratory sources of radiation ( X-ray tubes ) and make it possible to focus the X-rays from a free electron laser into a spot of smaller sizes.
Optical parameters of the X-ray lenses were tested on the following synchrotrons : SPring- 8 (Japan ), SSRL ( USA ), APS ( U.S. ), ANKA ( Germany ), ESRF ( France), Kurchatov synchrotron , Synchrotron in Hefei ( China ), Synchrotron in Shanghai ( China). It was found that the X-ray lens focusing into a spot having size of 1-2 microns, while the theoretically possible limit is 1 micron and less.
A multi-element X-ray refractive lens is designed to generate X-ray beams and can be used for research in nanomaterials and nanotechnology as:
- a device for focusing of X-rays
- field-lens of X-ray microscope
- a device for the implementation of Fourier spatial transformation
The designed lenses are an imaging device and as lens s for the visible spectral range can be used for imaging of objects in X-rays.
NTP Protection:
Quality Management System of the Belarusian State University was certified for compliance with international quality standards DIN EN ISO 9001:2008, reg.nomer QMS-00080 of 22.06.2010
Application
X-ray microscopy, imaging of X-ray sources, X-rays focusing
Offer: manufacturing and supply of X-ray lenses with the given parameters
