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3B SCIENTIFIC U10600 Instrucciones De Uso página 6

Detector de energías de rayos

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4. Technical data
Energy range:
Energy resolution:
Entry window:
Detector:
Active surface of detector: 0.8 mm diameter
Thickness of detector:
Dead time (lag) per pulse: 200 μs approx.
Length of cable:
Connection:
Dimensions of detector
housing:
Weight:
System requirements for MCALab software
Operating system:
Monitor resolution:
For recording spectra:
6. Operation
5.1 Installation of MCALab software
Install the software for the X-ray energy detector
do not yet connect the detector to the PC.
Place the CD into the appropriate PC drive.
Run setup_.exe and follow the instructions given
by the install wizard.
The installation program allows you to choose be-
tween
two
1. Full version: installs both the MCALab software
and the hardware drivers for the X-ray energy detec-
tor.
2. Compact: installs the MCALab software only. In
this case, the hardware drivers are copied to the
\Drivers sub-folder, so that they can be installed
manually at a later date.
In most cases, it is recommended that the full ver-
sion be installed, since it reduces the number of
steps required to work with the X-ray detector itself
to a minimum.
Automatic installation of the drivers is the final step
in the installation of the full version. The X-ray en-
ergy detector does not need to be connected to a PC.
For some system configurations, it is impossible to
install drivers automatically. If this is the case, they
need to be installed manually.
2 keV to 60 keV approx.
0.55 keV (median width)
at E
= 6.40 keV
α
FeK
Plastic
(absorption
equivalent to graphite of
thickness d = 40 μm)
Si PIN photodiode
200 μm approx.
1.75 m
via USB
80 mm × 22 mm diam.
150 g
Windows 95 or later,
Pentium
processor
> 200 MHz
recom-
mended
1024×768
pixels
higher recommended
Sound card with "Line
In" input
installation
options.
Connect the X-ray energy detector to a USB port
of a PC.
When the message "New hardware detected"
appears, install the drivers from the folder {path
for installation}\Drivers\CDM 2.06.00 WHQL Cer-
tified\ftdibus.inf.
A detailed description of how to install the drivers
can be found in the \Drivers folder in the form of a
PDF file.
5.2 Assembly of X-ray energy detector into X-ray
apparatus (U192001)
Insert the X-ray energy detector into the maga-
zine of the goniometer arm at the desired dis-
tance (see Fig. 2).
Connect the X-ray energy detector to a USB port
of the PC.
Make sure the cable is connected in such a way
that the goniometer arm can pivot to its full ex-
tent.
of
or
Fig. 2 Inserting the X-ray energy detector into the goniome-
ter arm of the X-ray apparatus (U192001)
5.3 Example experiment: X-ray fluorescence spec-
trum of a coin
Insert the slotted collimator (from basic set
U19205) onto the brass collimator of the lead-
glass dome of the X-ray apparatus.
Clamp the coin into the sample holder of the X-
ray apparatus at an angle of about 55°.
Insert the X-ray energy detector into the maga-
zine on the goniometer arm and connect it to a
PC.
Move the goniometer arm to a 75° angle.
Run the MCALab software, turn on the X-ray
apparatus and carry out the measurement and
evaluation.
A detailed description of the functions available in
the software can be found in its help folder.
2

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