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Re: Device enquiry
The NRC's State Programs www page has the following Sealed Source & Device Registry sheet on a VIATEC Ltd, Div. Of Plessy, Inc device, however, the Isotope was Ra226/Be in stead of Am241/Be. The review is coded as an Inactive SSD model number.
http://www.hsrd.ornl.gov/nrc/ssdr/09480801.pdf
This might be a start. The Company is out of South Africa.
Robert N. Young, X-ray Registration & Machine / Device Permitting Manager
TN - Division of Radiological Health
3rd Floor, L & C Annex
401 Church Street
Nashville, TN 37243-1532
(615) 532-0364 Voice
(615) 532-0385 FAX
e-mail: ryoung3@mail.state.tn.us
>>> "Dahlskog, Leif" <Leif.Dahlskog@HEALTH.WA.GOV.AU> 4/9/01 12:26:18 AM >>>
Dear Colleagues
I am looking for information about the following moisture measuring devices.
The information I have is as follows:-
Manufacturer : VIATEC Ltd, Div. Of Plessy, Inc
Model : PW23 Depth Probe Model DP1
Serial No. : 11
Contents : Am241/Be (activity unknown), June 1969
The above has a central rod about 1.5 inches diameter and maybe 4 ft long
surrounded by a green metal cylinder (shield). From surveys it appears the
source is located half way along the rod.
Accompanying the above is another smaller hand operated device with a lever
operated shutter. This one is labelled:-
Manufacturer : VIATEC Ltd, Div. Of Plessy, Inc
Model : HDM2, Surface Probe
Serial No. : 171
Contents : 10 mCi (370 MBq) of 226Ra/Be, June 1968
I would be most grateful on any further information about the devices you
may have or who I may contact in seeking the information. Of particular
interest would be the activity of Am-241/Be in the PW23 Depth Probe and
details about the source manufacture and shielding materials for both
devices (source encapsulation, chemical form, any special form certificates
issued etc). One retired staff member recalls that mercury may have been
used as the shielding material used in the Surface Probe. We have no plans
of opening it up but would like to confirm the mercury part. I have digital
photographs of the devices that can be sent to anyone interested.
Anyone able have any further info ?
regards
Leif Dahlskog
Radiation Health Section
Health Department of Western Australia
ph (+61 8) 9346 2260
fax (+61 8) 9381 1423
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