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Registry of Radioactive Sealed Sources & Devices,Safety Evaluation of Volume Gamma Source for models 4D6L,4D6P,4F6S & 4f3D.Certificate:NR-460-S-920-S.

Accession Number: ML20117G446

Date Released: Sunday, October 27, 2024

Package Contents

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• ML20117G657 - Responds to 890630 ltr,forwarding update for 3M Model 4D6P for sealed source & device registry sheets.Complete print package for Model 4D6P attached. (14 page(s), 8/31/1989)
• ML20117G620 - Informs that Model 4D6P acceptable for licensing purposes when containing max of 10 Ci of Cs-137.Info on Models 4D6L & 4F6S updated. (1 page(s), 9/29/1975)
• ML20117G561 - Discusses design of capsule plugs & forwards Rept 18 (ANSI) & Plant Quality Policy Manual.Quality Policy Manual currently being rewritten to meet new divisional requirements. (13 page(s), 9/14/1989)
• ML20117G852 - Informs of continued conclusion that Model 4F6S gamma source acceptable for specific licensing purposes IAW conditions of registration certificate. (22 page(s), 12/4/1990)
• ML20117G776 - Informs that 3M model 4F3D Co-60 source registered w/AEC on 650301 & that drawing A-1921-78 in effect at time.Current drawing B-1921-897,issue D,attached.Approval to use metal pellets in Model 4F3D requested. (2 page(s), 3/12/1976)
• ML20117H123 - Submits info pertinent to High Integrity Cs-137 Gamma Source,Model 4F6S. (4 page(s), 8/14/1964)
• ML20117G550 - Informs that model 4D6S Cs-137 sealed source design acceptable for licensing purposes,but completion of registration sheet delayed due to shortage of staff.Ltr can be used as approval until registration sheet issued. (1 page(s), 11/17/1989)
• ML20117G734 - Advises that 650106 ltr describing sealed source model 4F3D, drawing A-1921-78 attached thereto will be made part of AEC files & used to evaluate applications requesting use of Model 4F3D source. (1 page(s), 3/1/1965)
• ML20117G797 - Submits info re Co-60 Point Source,3M Model 4F3D,discussing use of Co-60 in fabrication of source.Drawing A-1921-78 presents physical dimensions & matls of const of source. (4 page(s), 1/6/1965)
• ML20117G670 - Informs that max loading for Model 4D6P listed 10Ci,Cs-137. (2 page(s), 9/8/1975)
• ML20117G988 - Responds to 640814 & 0921 ltrs,informing that source deemed acceptable. (2 page(s), 10/7/1964)
• ML20117G844 - Informs that Model 4F6S source deemed acceptable for licensing purposes when containing up to max of 5 Cu of Cs-137. (1 page(s), 9/8/1977)
• ML20117G525 - Informs that Model 4D6L gamma source acceptable for specific licensing purposes IAW conditions of registration certificate NR-460-S-155-S.W/o encl. (8 page(s), 12/4/1990)
• ML20117G587 - Submits info re Cs-137 gamma radiation source Model 4D6L. Fabrication of gamma radiation source & QC procedures used during fabrication discussed. (3 page(s), 10/23/1967)
• ML20117G572 - Responds to 890630 ltr,forwarding 3M Model 4D6L for sealed source & device registry sheets.Complete print package for Model 4D6L attached. (14 page(s), 8/24/1989)
• ML20117G756 - Responds to 760521 ltr,submitting clarification re 3M model 4F3D Co-60 source.Confirmation requested re acceptabilty of using metal pellets as isotopic source in fabrication of 4F3D,rather than using 3M Brand Radiating Microshperes. (9 page(s), 5/27/1976)
• ML20117H097 - Responds to 640814 ltr containing info re Model 4F6S sealed source,requesting specification of thickness for each wall of two source capsules. (1 page(s), 9/14/1964)
• ML20117G884 - Requests that future correspondence make specific ref to documents containing info to be incorporated by ref, including document title,date & other specific info such as source or device model number. (1 page(s), 3/27/1972)
• ML20117G732 - Responds to 760527 ltr re 4F3D source,informing that source evaluated on basis of possibly containing metal pellets or microspheres.Advises that last sentence of 760521 ltr should read as stated. (1 page(s), 6/9/1976)
• ML20117H005 - Informs that min wall thickness for Cs-137 Gamma Source & 3M Model 4F6S to be 0.060" for side circular walls & 0.025" for end wall. (1 page(s), 9/21/1964)
• ML20117G873 - Submits addl info in support of application for licensing of 3M Model 4F6S Cs-137 source for use in well logging.Tests conducted on prototype source identical in const to Model 4F6S & results that were obtained discussed. (4 page(s), 6/6/1977)
• ML20117G879 - Informs that prototype source Model 4F6S used in testing for vibration & puncture,per telcon re 770606 ltr concerning testing of subj source for well logging applications. (1 page(s), 6/29/1977)