Facilities and Services Available to External Users and
All the facilities of the Nuclear Physics Institute are open for the
scientists from other institutes of Academy of Sciences of the Czech
Republic, for the universities and for other Czech or foreign organisations.
We are also able to perform some measurements for the interested customers
on the commercial basis.
The Nuclear Spectroscopy Department
offers services in the field of elemental
characterisation of various materials using the R-XRF and NAA methods.
The former method is suitable for nondestructive determination of major
and minor constituents in geological, metallurgical, and various
archaeological samples, while the nondestructive mode of the latter
method, denoted as instrumental NAA - INAA, makes possible
determination of minor
and trace concentrations of many (up to forty) elements in various matrices,
such as soils, sediments, sewage sludges, other waste materials and
industrial ashes, and in aerosols. By combining INAA
and NAA with radiochemical separation (RNAA), 20-30 elements, including
majority of essential and toxic trace and/or ultratrace elements,
can be determined in the above mentioned sample types and also in waters,
plants, animal and human tissues and other biological materials.
Analysing larger series of samples of a similar type is preferred, as well
as co-operation on interpretation of analysis results.
The electrostatic Van de Graaff
accelerator and experimental
devices installed around can be used for
The analytical device at LWR-15 research
reactor can routinely
be used for depth profiling of Li, B and some other light elements
with detection limits =< 1 ppm. The analyses for external
organizations are performed on
commercial basis but direct participation of customer in the
measurements is welcome. Participation in larger, well founded
interdisciplinary research projects is prefered by NPI workers.
- analyses of solid surfaces using RBS technique and several
suitable nuclear reactions,
- elemental analyses by PIXE and PIGE techniques with
detection limits =< 0.1 ppm, and
- high-energy implantations with MeV light ions.
The Neutron Diffraction Group
(and see here) offers performation of measurements
on dedicated instruments in the field of
Offers of Nuclear Reaction Department
to external customers
are given by experimental facilities installed on the cyclotron
beam-transport system. Several charge-particle irradiation
experiments were realized during the years 1990-1994. The
investigations covered mainly irradiation of solid-state
materials especially the semiconductor substrates for industrial
purposes. These possibilities are, of course, opened also for the
- - small angle neutron scattering
- - residual strains in polycrystalline materials
- - neutron interferometry
- - neutron optics and neutron difraction topography
- - structure of amorphous glasses.
The fast neutron source installed at the cyclotron
makes possible the local irradiation of biological samples by an intensive
flux of fast neutrons for purpose of biophysical and biological
Department of Accelerators can
provide the following services for
Department of Radiation Dosimetry
can offer the following
methods and procedures for
- Irradiation of special materials and targets by acccelerated cyclotron
beams mainly used for production of radioisotopes, monitoring of
wear or corrosion of moveable machine parts, and for experiments in nuclear
biology and material research.
Design and manufacture of external and internal targets for special
- Calculations and design of ion-optical systems with magnetic and
electrostatic focusing elements.
- Utilization of electromagnetic mass separator for separation and mass
analysis of low mass species and for thin layer deposition and
- Calibration of instruments in the primary and secondary 60-Co
- Determination of Rn and Rn-daughters concentration in
dwellings and in the environment.
- Determination of the external exposure level in the
- Determination of some radionuclide concentrations in
- Determination of dosimetric characteristics of mixed fields
and beams composed of photons, neutrons and charged particles,
from background to accidental exposure levels.
All the dedicated instruments are equipped by an automatic control and
the necessary software for preliminary elaboration of the experimental
data. Concerning the pure research activity the instruments are at
disposal to external users and an advice as well as assistance in the running
of experiments are provided. The user have full responsibility
for the subsequent analysis and interpretation of the obtained experimental
results. The experiments with commercial applications may be approved
only on the basis of a special agreement between NPI and the external user.