AGFA XD 10 Series User manual

DR Detector Calibration
Key User Manual
0134I EN 20210924 1204

Contents
Legal Notice ...........................................................................3
Introduction to this Manual ................................................... 4
Scope .........................................................................5
Disclaimer ................................................................. 6
Calibrating the DR Detector ................................................... 7
About Gain Calibration .............................................. 8
Calibration Frequency ................................................9
Calibration Workflow ...............................................11
Required material ........................................ 12
Preconditions ...............................................13
Procedure .................................................... 14
XD 10, XD⁺10, XD 14, XD⁺14, XD 17 and XD⁺17
Exposure Sequence ...................................... 17
DR 10s and DR 14s Exposure Sequence ........ 20
DR 10e C, DR 14e C and DR 17e C Exposure
Sequence ..................................................... 22
DR 18M and DR 24M Exposure Sequence .... 24
DX-D 10C, DX-D 10G, DX-D 20C, DX-D 20G
Exposure Sequence ......................................25
DX-D 25C Exposure Sequence ...................... 27
DX-D 30C and DX-D 35C Exposure Sequence ...
29
DX-D 40C and DX-D 40G Exposure Sequence ...
31
DX-D 45C, DX-D 45G, DX-D 60C and DX-D 60G
Exposure Sequence ......................................33
Fixed DR Detector (4343R, Pixium RAD 4343)
Exposure Sequence ......................................35
Fixed DR Detector (Pixium RF4343 FL) Exposure
Sequence ..................................................... 37
Problem solving ...................................................................39
DR Calibration Tool Stalls ........................................ 40
Generator error ........................................................41
Generator controls are disabled ............................... 42
ii | DR Detector Calibration | Contents
0134I EN 20210924 1204

Legal Notice
0413
Agfa NV, Septestraat 27, B-2640 Mortsel - Belgium
For more information on Agfa products, please visit www.agfa.com.
Agfa and the Agfa rhombus are trademarks of Agfa-Gevaert N.V., Belgium or
its affiliates. DX-D is a trademark of Agfa NV, Belgium or one of its affiliates.
All other trademarks are held by their respective owners and are used in an
editorial fashion with no intention of infringement.
Agfa NV makes no warranties or representation, expressed or implied, with
respect to the accuracy, completeness or usefulness of the information
contained in this document and specifically disclaims warranties of suitability
for any particular purpose. Products and services may not be available for
your local area. Please contact your local sales representative for availability
information. Agfa NV diligently strives to provide as accurate information as
possible, but shall not be responsible for any typographical error. Agfa NV
shall under no circumstances be liable for any damage arising from the use or
inability to use any information, apparatus, method or process disclosed in
this document. Agfa NV reserves the right to make changes to this document
without prior notice. The original version of this document is in English.
Copyright 2021 Agfa NV
All rights reserved.
Published by Agfa NV
B-2640 Mortsel - Belgium.
No part of this document may be reproduced, copied, adapted or transmitted
in any form or by any means without the written permission of Agfa NV
DR Detector Calibration | Legal Notice | 3
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Introduction to this Manual
Topics:
•Scope
•Disclaimer
4 | DR Detector Calibration | Introduction to this Manual
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Scope
This manual contains information for the calibration and maintenance of the
following DR Detectors:
• DR 10e C
• DR 10s
• DR 14e C
• DR 14e G
• DR 14s
• DR 17e C
• DR 17e G
• DR 18M
• DR 24M
• DX-D 10C
• DX-D 10G
• DX-D 20C
• DX-D 20G
• DX-D 25C
• DX-D 30C
• DX-D 35C
• DX-D 40C
• DX-D 40G
• DX-D 45C
• DX-D 45G
• DX-D 60C
• DX-D 60G
• Fixed DR Detector (4343R, Pixium RAD 4343)
• Fixed DR Detector (Pixium RF4343 FL)
• XD 10
• XD⁺10
• XD 14
• XD⁺14
• XD 17
• XD⁺17
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Disclaimer
Agfa assumes no liability for use of this document if any unauthorized
changes to the content or format have been made.
Every care has been taken to ensure the accuracy of the information in this
document. However, Agfa assumes no responsibility or liability for errors,
inaccuracies or omissions that may appear in this document. To improve
reliability, function or design Agfa reserves the right to change the product
without further notice. This manual is provided without warranty of any kind,
implied or expressed, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose.
Note: In the United States, Federal law restricts this device on order
of a physician for prescription use only.
6 | DR Detector Calibration | Introduction to this Manual
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Calibrating the DR Detector
Topics:
•About Gain Calibration
•Calibration Frequency
•Calibration Workflow
DR Detector Calibration | Calibrating the DR Detector | 7
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About Gain Calibration
Regular calibration of the DR Detector assures constant image quality. This
calibration eliminates the effect of sensitivity deviations over the panel and/or
corrects non-unifomity in the X-ray beam. The sensitivity deviations of pixels
across the DR Detector are affected by the quantity and pattern of the effective
X-ray dose on the detector. Depending on the the panel type it will also correct
dead pixels in the acquired images.
8 | DR Detector Calibration | Calibrating the DR Detector
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Calibration Frequency
The DR Detector must be recalibrated at regular intervals. Messages will be
displayed on the NX workstation when recalibration is required.
Perform calibration when exposure conditions have changed significantly and
after a major change to the hardware or software configuration of the X-ray
system.
A DR detector used for veterinary applications has a calibration interval of 12
months, regardless of the model.
Table 1: Calibration interval
DX-D 10C, DX-D 10G, DX-D 20C, DX-D 20G 3 months
DR 18M, DR 24M
DX-D 40C, DX-D 40G, DX-D 45C, DX-D 45G,
DX-D 60C, DX-D 60G
XD 10, XD⁺10, XD 14, XD⁺14, XD 17, XD⁺17
6 months
DR 10e C, DR 14e C, DR 17e C
DR 10s, DR 14s
DX-D 25C, DX-D 30C, DX-D 35C
Fixed DR Detector (Pixium RF4343 FL)
12 months
Fixed DR Detector (4343R, Pixium RAD 4343) 3 months or 12 months,
depending on the DR De-
tector model.
A timely reminder is dis-
played on the NX worksta-
tion.
DR 14e G, DR 17e G no calibration required
Table 2: Using the DR Detector on multiple NX workstations
DR 10s, DR 14s
DX-D 10C, DX-D 10G, DX-D
20C, DX-D 20G
DX-D 25C
DX-D 30C, DX-D 35C
Each NX workstation has its own set of cali-
bration data. The regular calibration must be
performed on each of the workstations.
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DX-D 40C, DX-D 40G, DX-D
45C, DX-D 45G, DX-D 60C,
DX-D 60G
XD 10, XD 10+, XD 14, XD
14+, XD 17, XD 17+
DR 10e C, DR 14e C, DR 17e
C
A single set of calibration data is used for all
NX workstations on which the DR Detector is
used. Choose one NX workstation that will be
used for calibration and perform the regular
calibration each time on the same NX work-
station.
Do not calibrate the DR Detector on another
NX workstation.
DR 18M, DR 24M
Fixed DR Detector
The DR Detector can only be used on a single
NX workstation.
Note: If the system has multiple DR Detectors, make a note of the ID
that is mentioned in the message on the NX workstation indicating
which of the DR Detectors must be calibrated. The ID is required to
identify the right detector during calibration.
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Calibration Workflow
Topics:
•Required material
•Preconditions
•Procedure
•XD 10, XD
⁺ 10, XD 14, XD ⁺ 14, XD 17 and XD ⁺ 17 Exposure Sequence
•DR 10s and DR 14s Exposure Sequence
•DR 10e C, DR 14e C and DR 17e C Exposure Sequence
•DR 18M and DR 24M Exposure Sequence
•DX-D 10C, DX-D 10G, DX-D 20C, DX-D 20G Exposure Sequence
•DX-D 25C Exposure Sequence
•DX-D 30C and DX-D 35C Exposure Sequence
•DX-D 40C and DX-D 40G Exposure Sequence
•DX-D 45C, DX-D 45G, DX-D 60C and DX-D 60G Exposure Sequence
•Fixed DR Detector (4343R, Pixium RAD 4343) Exposure Sequence
•Fixed DR Detector (Pixium RF4343 FL) Exposure Sequence
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Required material
For calibration of all DR Detectors, apart from DR 18M, DR 24M and DX-D
25C, an Agfa calibration filter (Cu 1.5 mm) is required.
For calibration of DR 18M and DR 24M, a calibration PMMA block is required.
12 | DR Detector Calibration | Calibrating the DR Detector
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Preconditions
• Clean the DR Detector (see the DR Detector user manual for instructions).
• Make sure that all parts of the X-Ray system that may affect imaging (e.g.
the DAP meter) are in their normal position and clean.
• Make sure the battery is fully charged before starting the calibration
(battery powered DR Detectors only).
• The DR Detector must be powered on before starting the NX workstation.
• Allow the DR Detector to warm up before performing the calibration.
During warm-up no exposures should be made. Warm-up time is one hour,
unless specified otherwise.
• The ID of the DR Detector must be known.
• The X-ray generator is operational.
• Make sure that there are no foreign objects in the exposed area (e.g.
stitching grid).
• Move the floating tabletop to its normal position to avoid that the tabletop
borders become visible on the DR Detector image.
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Procedure
To calibrate the DR Detector:
1. Log in to NX.
To calibrate DR 10e C, DR 14e C or DR 17e C, you have to log in to a user
account with administrator rights.
2. Stop the NX software completely.
In the Start menu, select All programs > Agfa >NX > Service > Stop
NX.
3. Start the DR Calibration Tool.
In the Start menu, select All programs > Agfa > DR Calibration Tools >
Calibration Tool.
The software console is started.
The splash screen is displayed. Click the splash screen to make it
disappear.
4. Check the DR Detector staus in the software console or on the generator
console (if applicable).
If the DR Detector can be used on different NX workstations, make sure
that it is registered to the NX workstation where calibration is performed.
Note: If the DR Detector status is displayed, it may stay red or
undefined.
5. Use the DR Detector drop-down to select the detector that will be
calibrated.
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DR Detector:
A portable DR Detector is identified by its nickname. A fixed DR Detector
is identified by its serial number.
On DX-D 300 and DX-D 600 the modality position is not selected
automatically. Use the drop-down button on the software console to select
the modality position.
Connection to the detector is set up.
6. Click Start Calibration.
A message may be displayed to remind you of using the correct modality
settings.
7. The DR Calibration Tool will request to perform a series of exposures.
Refer to the Exposure Sequences further in this manual.
Before making each next exposure, make sure that the X-ray system is
ready for making the exposure and that the DR Calibration Tool is ready
for receiving the exposure.
8. After the last exposure, the calibration is finished.
• Make a flat field exposure and check that there are no abnormal
inhomogeneities in the image.
• If the calibration was successful, the new calibration values are stored
and used for all new exposures on the DR Detector. Proceed with step
10.
• If the calibration was not successful, the old calibration values are
restored and the DR Detector remains operational.
In that case, it is advised to check collimation and modality setup (tube
position) and retry the calibration procedure as soon as possible.
9. Try out the following remedy (problem solving):
• If the calibration fails this may be due to magnetic or electromagnetic
interference or power supply interference. Check the environment,
reposition the DR Detector and restart the calibration procedure.
• If the calibration fails this may be due to uneven exposure. Check the
X-ray beam path for presence of X-ray opaque objects or particles, e.g.
on the upper surface of the DAP meter.
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Note: If calibration fails again contact your local service
representative.
10. Exit the Calibration Tool.
11. Start the NX software.
In the Start menu, select All programs > Agfa > NX > Restart NX
completely.
Related Links
DR 10s and DR 14s Exposure Sequence on page 20
DR 10e C, DR 14e C and DR 17e C Exposure Sequence on page 22
DR 18M and DR 24M Exposure Sequence on page 24
DX-D 10C, DX-D 10G, DX-D 20C, DX-D 20G Exposure Sequence on page 25
DX-D 25C Exposure Sequence on page 27
DX-D 30C and DX-D 35C Exposure Sequence on page 29
DX-D 40C and DX-D 40G Exposure Sequence on page 31
DX-D 45C, DX-D 45G, DX-D 60C and DX-D 60G Exposure Sequence on page 33
Fixed DR Detector (4343R, Pixium RAD 4343) Exposure Sequence on page 35
16 | DR Detector Calibration | Calibrating the DR Detector
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XD 10, XD⁺10, XD 14, XD⁺14, XD 17 and XD⁺17 Exposure
Sequence
Topics:
•Modality Settings
•Exposure Sequence
•Partial calibration
Modality Settings
Apply these modality settings:
Table 3: Modality settings
kV 75 kV
mAs (indica-
tive value for
first exposure
level)
25 mAs (XD 10, XD⁺10)
32 mAs (XD 14, XD⁺14, XD 17, XD⁺17)
mAs (indica-
tive value for
second expo-
sure level)
12.5 mAs (XD 10, XD⁺10)
4 mAs (XD 14, XD⁺14, XD 17, XD⁺17)
Focus large focus
SID Use the (average) SID for normal operation.
Position If the DR Detector is used in a fixed position, use the same
position for calibration.
If the DR Detector is used in different positions, perform
the calibration with the short side of the DR Detector paral-
lel to the axis of the X-ray tube.
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Grid Remove the grid.
Filtration Mount the Agfa calibration filter (Cu 1.5 mm). Check that
there is no additional filtration.
Collimation The collimation area should extend at least 1.5 cm on each
side of the DR Detector.
Note: If the exposure settings used for a previous calibration are
known, use these settings.
On modalities that support automatic collimation, the collimation settings are
applied automatically and must be checked by the user.
Ralco collimators may limit the X-ray field. To overrule the limitation, the
collimator must be unlocked using a key and the collimation must be applied
manually.
Exposure Sequence
Procedure:
1. Set the mAs value to the indicative value for the first exposure level.
2. Make two exposures.
The DR Calibration Tool may instruct to increase or decrease the mAs
setting to reach the required exposure level.
3. Make 10 exposures.
4. Set the mAs value to the indicative value for the second exposure level.
5. Make two exposures.
The DR Calibration Tool may instruct to increase or decrease the mAs
setting to reach the required exposure level.
6. Make one exposure.
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Partial calibration
For veterinary applications, a partial calibration can be performed. The
exposed area during calibration is not covering the whole detector surface. A
minimum exposed area of 10 by 12 cm is required.
WARNING:
It is not allowed to use a partially calibrated DR detector for
human patients.
Procedure:
Make the exposures as instructed by the DR Calibration Tool.
The tool will detect the partial exposure and ask for confirmation that a
partial calibration can be applied.
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DR 10s and DR 14s Exposure Sequence
Topics:
•Modality Settings
•Exposure Sequence
•Calibrating DR 10s and DR 14s on DX-D 100
Modality Settings
The indicative exposure levels for each exposure are specified by the DR
Calibration Tool.
Table 4: Modality settings
Focus large focus
SID Use the (average) SID for normal operation.
Position If the DR Detector is used in a fixed position, use
the same position for calibration.
If the DR Detector is used in different positions,
perform the calibration with the short side of the
DR Detector parallel to the axis of the X-ray tube.
Grid Remove the grid.
Filtration Mount the Agfa calibration filter (Cu 1.5 mm).
Check that there is no additional filtration.
Collimation The collimation area should extend at least 1.5
cm on each side of the DR Detector.
20 | DR Detector Calibration | Calibrating the DR Detector
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