SPECTROMETER FOR STUDYING NUCLEAR PHYSICS And AUTOMATION SYSTEM FOR STUDYING NUCLEAR PHYSICS Description and Specifications for Lab Tenders
SPECTROMETER FOR STUDYING NUCLEAR PHYSICS And AUTOMATION SYSTEM FOR STUDYING NUCLEAR PHYSICS.
SPECTROMETER FOR STUDYING NUCLEAR PHYSICS And AUTOMATION SYSTEM FOR
STUDYING NUCLEAR PHYSICS This system has been designed for the study of
nuclear physics and it enables to carry out a lot of important experiments of
nuclear physics such as Compton scattering, production of
couples, absorption of gamma rays, activity of radioactive
sources, X rays, measuring ambient radioactivity, cosmic rays,
etc…
This type of system is usually equipped with holdable
radioactive sources ; however, an automation system designed
to isolate radioactive sources and to prevent users from any
contact with these sources, has been added so that students
can work with the maximum safety level.
Then the device enables to carry out a remote control of the
instrument.
SPECTROMETER FOR STUDYING NUCLEAR PHYSICS
This spectrometer consists of a central unit of 33 x 22.,9 x 6.,3 cm,
of a cable for connecting this unit with a PC, and of a software.
The central unit is provided with a shielded metallic casing
containing the following components:
• A regulated power supply unit being able to output a potential
difference ranging from 0 V to 2500 V with a maximum current
of 1 mA. Output voltage can be varied by steps of 5 V
• A preamplifier-amplifier chain being able to supply a total gain
ranging from 2x to 1000x
• Upper-level and lower-level discriminators
• An analog-to-digital converter, with clock signal of 80 MHz,
with 2048 channels (it is also available with 1024, 512 and
256 channels)
• A buffer store for data
• A USB interface for the connection with a PC
The software installed and running in the PC with which the
spectrometer is connected also enables to control all the features
of this spectrometer and to display and analyze the results of
measurements. It also includes a library of standard spectra of
isotopes (ISOMACH) to allow an easy identification of the isotopes
available in the samples under examination.
The main operational modes of the system are:
• MCA for the analysis of pulse width
• MCS for temporal analyses
• MSB for the use with Mossbauer systems
AUTOMATION SYSTEM FOR STUDYING NUCLEAR PHYSICS
Automation system has been designed and
produced with industrial components and technologies and it is
an exhaustive support for in-depth studies on experimentation
of phenomena of nuclear physics.
The automation of the process that enables its remote control
is managed by a PLC coupled to a supervision SCADA software.
Nuclear spectrometer will examine the samples
recording the results of measurements on graphic pages of a
specifi c software.
Description of analysis process
The four samples having to be analyzed are placed on a revolving
table inside a shielded store provided with sliding door. As
process starts, a manipulator arm provided with suction cup
rotates towards the revolving table and picks up the sample
having to be analyzed. Then the arm rotates until it arrives over
the cell prearranged for the analysis where it lays the sample
; then the arm goes away. The nuclear spectrometer starts
the analysis. Six different filters can be interposed between
spectrometer and sample, or the sample can be approached
to the instrument to reduce the time of analysis. At the end
of the measurement, the arm will bring the sample back to its
starting position.
The whole system is enclosed in a transparent case of
polycarbonate that ensures protection, besides enabling to
display all the components of the system.
Description of Web control
Island has been designed for its installation
inside a laboratory. The PLC of the equipment can be connected
with an Ethernet network available in the school. This enables
to control process automation from any PC connected with the
network via Web Browser (e.g. : Explorer or Firefox).
TRAINING PROGRAM
System mod. can be used with remote control as
explained above.
It allows to carry out several tests such as:
• Compton scattering
• Production of couples
• Absorption of gamma rays
• Activity of radioactive sources
• X rays
• Measuring ambient radioactivity
• Cosmic rays
Dimensions: 1000x1000x560 mm