where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -
1582 views
Technical Discussions
Christine Olive
Christine Olive
01:16 Jan-29-2001
Re: Radiography of Tubes with Source on Tubes



 
 Reply 
 
Alan Beveridge
Alan Beveridge
04:43 Dec-13-2000
Radiography of Tubes with Source on Tubes

Does anyone have any information on a radiographic technique in which the source is placed onto the tube surface. Types of tubes are 2" OD, I believe the technique uses an Iridium source with a strength of 5 curies or less.

Any info on sensitivity, or who uses such a technique?

Regards,

Alan Beveridge


 
 Reply 
 
Dent McIntyre
Consultant, NDE Manager NDELevel III/3
NDT Consultant, Canada, Joined Nov 1998, 248

Dent McIntyre

Consultant, NDE Manager NDELevel III/3
NDT Consultant,
Canada,
Joined Nov 1998
248
03:39 Dec-13-2000
Re: Radiography of Tubes with Source on Tubes
Alan:
Some years ago we used this technique on a nuclear piping job. The tiny Ir 192 source was so small we could actually perform panoramic shots and still meet Ug requirements. 2-2T was no problem.
How thick is the wall of these tubes?

Dent McIntyre
NDE Manager
B & W Canada

: Does anyone have any information on a radiographic technique in which the source is placed onto the tube surface. Types of tubes are 2" OD, I believe the technique uses an Iridium source with a strength of 5 curies or less.

: Any info on sensitivity, or who uses such a technique?

: Regards,

: Alan Beveridge




 
 Reply 
 
Robert A. Day
Engineering
Milky Way Jewels, USA, Joined Nov 1998, 40

Robert A. Day

Engineering
Milky Way Jewels,
USA,
Joined Nov 1998
40
01:49 Dec-13-2000
Re: Radiography of Tubes with Source on Tubes



 
 Reply 
 
Alan Beveridge
Alan Beveridge
06:53 Dec-14-2000
Re: Thickness ofTubes for Dent McIntyre
: Dent,

Tube thicknesses vary from 3.4mm in reheater to 9.5mm in the final stage superheater.

Our local NDT companies have source sizes of 2mmx2mm, and 3mmx3mm Iridium.

Regards,

Alan Beveridge





 
 Reply 
 
Dent McIntyre
Consultant, NDE Manager NDELevel III/3
NDT Consultant, Canada, Joined Nov 1998, 248

Dent McIntyre

Consultant, NDE Manager NDELevel III/3
NDT Consultant,
Canada,
Joined Nov 1998
248
04:49 Dec-14-2000
Re: Thickness ofTubes for Dent McIntyre



 
 Reply 
 
Alan Beveridge
Alan Beveridge
05:25 Dec-15-2000
Re: Radiography of Tubes with Source on Tubes
: Dent,

Tube thickness varies from 3.4mm in our reheater to 9.5mm in the final stage superheater.

Regards,

Alan Beveridge

Alan:
: Some years ago we used this technique on a nuclear piping job. The tiny Ir 192 source was so small we could actually perform panoramic shots and still meet Ug requirements. 2-2T was no problem.
: How thick is the wall of these tubes?

: Dent McIntyre
: NDE Manager
: B & W Canada




 
 Reply 
 
BobC
BobC
03:52 Dec-20-2000
Re: Radiography of Tubes with Source on Tubes
I regards to your question, you must first determine to which code, or to what specification you are to be in compliance with. ASME generaly requires anything below 3.5" od to be radiographed using a superimposed or eliptical technique. On the other end of the spectrum Gas piping code has essentially the same requirement. Most codes make provision for the engineer to approve alternate techniques, but in general you are going to want the smallest physical source that you can get. Hope some of this helps.



 
 Reply 
 
Farshad Mobasher-Fard
Engineering
Nikan Machine, Iran, Joined Sep 2001, 3

Farshad Mobasher-Fard

Engineering
Nikan Machine,
Iran,
Joined Sep 2001
3
07:54 Sep-18-2001
Re: Radiography of Tubes with Source on Tubes
Re: Radiography of Tubes with Source on Tubes


 
 Reply 
 

Product Spotlight

ISONIC 3510

Very Powerful Superior Performance Extremely Portable Smart Phased Array Ultrasonic Flaw Detector an
...
d Recorder with 2 Conventional UT and TOFD Channels uniquely combines PA, single- and multi-channel conventional UT, and TOFD modalities providing 100% raw data recording and imaging. Suitable for all kinds of every-day ultrasonic inspections
>

FAAST-PA! OEM Patented phased Array for high speed UT inspection

Multiangle, Multifocus, Multifrequency, Multibeam. Instead of stacking UT electronics and having m
...
any PA probes, FAAST-PA is able to transmit all delay laws within ONE single shot in Real time.
>

YXLON Cougar EVO

Scalable small footprint X-ray inspection systems for assembly and laboratory applications. The
...
YXLON Cougar EVO series was designed to provide the "best-in- class" inspection solutions for SMT, semiconductor, and laboratory assembly applications, while maintaining a small system footprint for maximum convenience. With optimized software and hardware, these systems produce higher quality and more consistent results than other electronics inspection systems currently on the market.
>

High-end Ultrasonic Flaw Detector with 32:128PR PAUT and 2-ch TOFD: SyncScan 2

SIUI’s newly launched SyncScan 2, is a high-end ultrasonic flaw detector with 32:128PR PAUT and
...
2-ch TOFD, which can maximize your efficiency for PA and TOFD. ● Support PA/TOFD/UT ● 32-ch PA is more suitable for inspection on extra-thick wall and high-attenuation material. ● 32-ch PA and 2-ch TOFD work simultaneously. ● Support PR mode for corrosion inspection.
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window