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- since 1996 -

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Technical Discussions
Ron Olson
R & D, Aerospace
The Best Aviation Company In The World, USA, Joined Feb 2005, 23

Ron Olson

R & D, Aerospace
The Best Aviation Company In The World,
USA,
Joined Feb 2005
23
02:17 Jun-17-2005
Digital Radiography Consideration

Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?

Thank you.


    
 
 
Troy Foster
Engineering, X-ray Inspection Systems
Willick Engineering Company, USA, Joined Feb 2000, 6

Troy Foster

Engineering, X-ray Inspection Systems
Willick Engineering Company,
USA,
Joined Feb 2000
6
02:22 Jun-18-2005
Re: Digital Radiography Consideration
----------- Start Original Message -----------
: Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?
: Thank you.
------------ End Original Message ------------


DR works well for many applications, but not all. What will you be radiographing?

Troy



    
 
 
Ron Olson
R & D, Aerospace
The Best Aviation Company In The World, USA, Joined Feb 2005, 23

Ron Olson

R & D, Aerospace
The Best Aviation Company In The World,
USA,
Joined Feb 2005
23
08:12 Jun-18-2005
Re: Digital Radiography Consideration
----------- Start Original Message -----------
: : Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?
: : Thank you.
:
: DR works well for many applications, but not all. What will you be radiographing?
: Troy
------------ End Original Message ------------

Aerospace (civilian and military) would be the application. We would x-ray aluninum alloys, steels, castings (aluminum & mag), composites, titaniumss and friction stir welds of various thickness.


    
 
 
Bas Janssen
NDT Inspector, Managing Xray micro-Tomography
NRG, Netherlands, Joined Jul 2003, 4

Bas Janssen

NDT Inspector, Managing Xray micro-Tomography
NRG,
Netherlands,
Joined Jul 2003
4
01:00 Jun-20-2005
Re: Digital Radiography Consideration
----------- Start Original Message -----------
: : Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?
: : Thank you.
:
: DR works well for many applications, but not all. What will you be radiographing?
: Troy
------------ End Original Message ------------

Hello All, we use DR on rotating objects, currently to find cracks in welding samples. It then goes on to creating a tomographic dataset to get 3D metrics.
It is hard to analyse a 3d dataset for unknown disturbances, it takes new analyse methods mostly for every quality question....
Be aware for the health regulations on operating a x-ray source, it probably takes education for a certification.



    
 
 
Bas Janssen
NDT Inspector, Managing Xray micro-Tomography
NRG, Netherlands, Joined Jul 2003, 4

Bas Janssen

NDT Inspector, Managing Xray micro-Tomography
NRG,
Netherlands,
Joined Jul 2003
4
01:00 Jun-20-2005
Re: Digital Radiography Consideration
----------- Start Original Message -----------
: : Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?
: : Thank you.
:
: DR works well for many applications, but not all. What will you be radiographing?
: Troy
------------ End Original Message ------------

Hello All, we use DR on rotating objects, currently to find cracks in welding samples. It then goes on to creating a tomographic dataset to get 3D metrics.
It is hard to analyse a 3d dataset for unknown disturbances, it takes new analyse methods mostly for every quality question....
Be aware for the health regulations on operating a x-ray source, it probably takes education for a certification.



    
 
 
Mathias
Mathias
03:10 Jun-20-2005
Re: Digital Radiography Consideration
----------- Start Original Message -----------
: : : Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?
: : : Thank you.
: :
: : DR works well for many applications, but not all. What will you be radiographing?
: : Troy
: Hello All, we use DR on rotating objects, currently to find cracks in welding samples. It then goes on to creating a tomographic dataset to get 3D metrics.
: It is hard to analyse a 3d dataset for unknown disturbances, it takes new analyse methods mostly for every quality question....
: Be aware for the health regulations on operating a x-ray source, it probably takes education for a certification.
------------ End Original Message ------------

To Bass Jansen:
How large and thick are the welding samples you are examining?
What kind of detector do you use?
How do you verify the image quality?
What are the pros, as you see it, of reconstructing the weld samples into 3D-models? (disregarding the cool part)




    
 
 
Bas Janssen
NDT Inspector, Managing Xray micro-Tomography
NRG, Netherlands, Joined Jul 2003, 4

Bas Janssen

NDT Inspector, Managing Xray micro-Tomography
NRG,
Netherlands,
Joined Jul 2003
4
02:32 Jun-20-2005
Re: Digital Radiography Consideration
----------- Start Original Message -----------
: : : : Has any one tried DR? Are you satisfied with it? Was it worth the cost? Compared to traditional radiography how does it stand? Which company and/or instruments do you use?
: : : : Thank you.
: : :
: : : DR works well for many applications, but not all. What will you be radiographing?
: : : Troy
: : Hello All, we use DR on rotating objects, currently to find cracks in welding samples. It then goes on to creating a tomographic dataset to get 3D metrics.
: : It is hard to analyse a 3d dataset for unknown disturbances, it takes new analyse methods mostly for every quality question....
: : Be aware for the health regulations on operating a x-ray source, it probably takes education for a certification.
: To Bass Jansen:
: How large and thick are the welding samples you are examining?
We are now working on two beeing 2x2x11cm, these are pieces cut-out of a big weld from a testpipe under stress(head, stress and bending)
: What kind of detector do you use?
A dose ImageIntensifier, erg. our tomographic setup
: How do you verify the image quality?
We just go for difference in intensity, over more pixels and more angles
: What are the pros, as you see it, of reconstructing the weld samples into 3D-models? (disregarding the cool part), The cool part! ;-)
We can do volume metrics and orientation in different directions.

Please note we are a research institute so having the tool makes us try new uses. www.nrg-nl.com
------------ End Original Message ------------




    
 
 

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