Amptek X-123SDD Manuel de démarrage rapide - Page 3

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Quick Use of the X-123SDD

1. Connect the X-123SDD and PC as described in the previous section.

2. Launch the ADMCA software by opening the ADMCA.exe file.

3. When the "Starting ADMCA" box appears as in figure 2, select DP5 and

click on "Connect." The X-123SDD unit should now be connected to the

software. To verify this, confirm that a serial number for the DP5 is

shown in the top right corner of the software and that the USB symbol

located at the bottom right corner of the software is green.

4. Now that the X-123SDD is connected the proper configuration must be

selected for the detector. The ADMCA software includes configurations

for most Amptek detectors. These configurations are identified

by the detector material, dimensions, and cooler type.

o NOTE:

The

configuration, so when powering the system for the first

time and clicking Connect, the factory configuration is

loaded. This is the same configuration that is displayed on

test sheet shipped with the detector.

5. To select a configuration select "DPP Setup" under the "DPP"

dropdown list in the software or by clicking the "acquisition

setup" button on the toolbar. The dialog box shown in Figure 3

will appear. The configurations can be selected through the

dropdown

Configuration."

6. Once the correct configuration is selected from the dropdown

menu the indented grey area above the dropdown menu should

read (for example) "Loaded SDD 7mm2/500um 2-Stage Cooler

configuration." Click "Show Current Configuration" to view

the settings. A box will appear with the settings. Click OK to

exit the box.

7. To apply the selected configuration click the "Apply" button.

Then select the "OK" button to exit this dialog box.

8. Now that the X-123SDD has loaded the appropriate

configuration for that detector, an acquisition can be started.

Place a source in front of the detector. To start an acquisition,

press the space bar. The space bar will also stop an acquisition.

It may take the detector a few minutes to stabilize, so if the acquisition does not look correct wait a few minutes and then

press the "A" key on the keyboard to clear the acquisition and begin a new one. It can take up to 2 minutes for an Amptek

detector to stabilize after a configuration has been sent.

o Once the detector has stabilized adjust some of the

thresholds which prevent low-end noise and other

unwanted counts from affecting the spectrum. This can

be done automatically by the software by clicking the

"Tune Slow/Fast" button on the toolbar. This must be

done with no source in front of the detector.

9. A common adjustment is to change the gain of the X-

123SDD. This can be done in the "Gain & Pole Zero" tab

of the DPP properties dialog box or by using the gain

buttons on the toolbar.

thresholds whenever the gain is changed. This can be done

automatically as explained in the previous step.

X-123SDD

remembers

labeled

"Read

Amptek

It is necessary to readjust the

the

last

Detector

Figure 3: Properties dialog box.

Figure 4: Acquisition spectrum for an

X-123SDD Quick Start Guide Rev A1

Figure 2: Starting ADMCA

Fe source.

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