ML20210E648

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Registry of Radioactive Sealed Sources & Devices,Safety Evaluation of Sealed Source for Model Dwg A200234-D. Certificate:NR-474-S-801-S
ML20210E648
Person / Time
Issue date: 07/26/1999
From: Bhachu U, Samson Lee
NRC
To:
Shared Package
ML20210E645 List:
References
SSD, NUDOCS 9907290002
Download: ML20210E648 (14)
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Text

. .

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 1 OF 6 SEALED SOURCE TYPE: Irradiator Source MODEL: Dwg A200234-D l

l MANUFACTURER / DISTRIBUTOR: Neutron Products, Inc.

22301 Mt. Ephraim Road P.O. Box 68 Dickerson, Maryland 20842-9703 i

I ISOTOPE: MAXIMUM ACTIVITY:

Cobalt-60 22,000 Curies (814 TBq)

LEAK TEST FREOUENCY: 6 months l

l PRINCIPAL USE: (M) Gamma Irradiator, Category IV t

l CUSTOM DEVICE: X YES NO I

CUSTOM USER: Neutron Products, Inc.

22301 Mt. Ephraim Road P.O. Box 68 Dickerson, MD 20842-9703 9907290002 990726 PDR RC SSD PDR

REGISTPY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE F_Qi NR-474-S-801-S DATE: July 26, 1999 PAGE 2 Or 6 SEs D SOURCE TYPE: ~Irradiator Source DEECRIPTION:

The source consists of 4 assembly holders, with each holder contnin 25 pairs of alternately stacked Co-60 wafers and spacer rings. There are 2 slits in each holder to minimize self-attenuation. The holders are stacked within a single inner capsule which is sealed within an outer capsule. Both the inner and the outer capsules are fabricated from 321 type stainless steel tubing and rod. All seals are accomplished by tungsten inert gas welding. . Each Co-60 wafer is 0.745 inches (18.92 mm) 1 in diameter and 0,073 inches (1.85 mm) thick; each assembly holder is 3.825 inches (9.72 cm) long and 0.812 inches (2.06 cm) l in diameter; th'e active length of the source is 15.3 inches I (38.86 cm); the inner capsule is 16.125 i 0.05 inches (40.96 1 0.13 cm) long; and the overall length of each source is 18.45 i i 0.05 inches (46.86 1 0.13 cm) and is 1.0 inches _(2.54 cm) in  ;

diameter  !

l LABELING:

The source is labeled with "NPI-XX" and the serial number only.

Any other labeling was considered impractical. "XX" is the year of fabrication.

DIAGRAM:

See Attachments 1 and 2.

CONDITIONS OF NORMAL USE:

The source will be used in a panoramic gamma irradiator (with wet source storage) for the irradiation of biological and other l materials by the custom user. Use conditions should not exceed

! those specified for ANSI classification 43424.

l L

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE HQ1 NR-474-S-601-S DATE: July 26, 1999 PAGE 3 OF 6 SEALED SOURCE TYPE: Irradiator Source PROTOTYPE TESTING:

Prototypes were tested in accordance with standards set forth in ANSI Standard N542 for the classification of sealed sources. The recommended required test levels for these sources are 43424; the actual performance of the prototypes was 53525. There were no failures at any test level.

OUALITY ASSURANCE AND CONTROL:

Material selection, inspection, testing and fabrication is the same as the NPI sources in the Source and Device Catalog which includes tu'oing and end cap shock tests and analysis; evaluation of 5 sequential prototype welds to qualify each weld configuration; preparation and evaluation of a dummy weld after each 10 sources; and, helium bubble and wipe testing of the inner and outer capsules with surface contamination not to exceed 0.05 microcuries (1,850 Bq) for the inner capsule and 0.005 microcuries (185 Bq) for the outer capsule. Source activity is determined by comparing the exposure rate generated by the source standard. The procedure used has determined source activities which have been correlated when tested by other procedures and users.

LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:

A. While not necessarily required, the manufacturer recommends:

1. Avoiding the following:
a. prolonged storage in water with a resistance lower than 10,000 ohm-centimeters;
b. prolonged use or storage in still air;
c. prolonged storage in the proximity of "ild steel, brass or other dissimilar metals.
2. That sulfuric acid be used in lieu of hydrochloric acid in storage pool demineralizer resin systems.

B. NPI source drawing A200234D is to be distributed only to individuals having a specific license issued by the NRC or an Agreement State.

l  !

L l

I REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE l

HQ1 NR-474-S-801-S DATE: July 26, 1999 PAGE 4 OF 6 l SEALED SOURCE TYPE: Irradiator Source LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE (Cont'd): l 1

C. Installation, dismantling, relocation, repair, initial I testing, replacement and/or disposal of the source shall be performed in accordance with the terms and conditions of a specific license issued by the NRC or an Agreement State.

D. Upon routine quality control inspection by the manufacturer, microcracking in the welds was noted. Further review of this problem revealed that the discovered microcracking is a phenomenon commonly associated with the welding of 321 stainless steel alloy. Subsequent intensive testing and analysis of the microcracking as referenced in References D through I indicated that no significant problems attributed to the observed microcracks should exist for at least 2,000 years.

l E. Prior to transferring the sources to a licensee other than the named custom user, it is recommended that a detailed metallurgical engineering evaluation be performed to determine the integrity of the transferred sources. Special j attention should be given to the growth of the noted microcracks. j l

SAFETY ANALYSIS

SUMMARY

The Model Drawing A200234-D source is no longer manufactured or  ;

distributed by Neutron Products, Inc. and Process Technology is l no longer in business. This source was transferred to the '

Radiation Technology, Inc. and then to the manufacturer in 1995.

Therefore, the registration certificate is being converted to an inactive registration certificate.

The source was originally approved for licensing purposes by the Arkansas Division of Radiation Control and Emergency Management Programs. Because of the limited information available on this source, no safety evaluation of the device was performed as part of the conversion of the certificate to inactive status.

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE HQ1 NR-474-S-801-S DATE :.hdy 26, 1999 PAGE 5 OF 6 SEALED SOURCE TYPE: Irradiator Source RE FERENCES :

A. Letter from Neutron Products, Inc. to Radiation Technology, Inc. dated December 30, 1981 and signed by Marvin M.

Turkanis.

1 B. Letter and enclosures from Neutron Products, Inc. to

. Radiation Technology dated February 2, 1982 and signed by I Marvin M. Turkanis.

C. Letter from Neutron Products, Inc. to the Arkansas Department of Health dated February 17, 1982 and signed by Marvin M. Turkanis.

D. Crack Propagation Analysis dated March, 1982 and prepared by Ray Fasiczka of O'Donnell and Associates, Inc.

E. Memorandum from Julius Heuschkel to Marvin Turkanis through Ray Fasiczka dated March 22, 1982.

F. Letter from O'Donnell and Associates to Marvin Turkanis dated March 29, 1982.

G. Letter from Marvin Turkanis to Ted Russer dated March 30, 1982.

H. Letter from Mdrvin Turkanis to Bernard Bevill dated April 2, 1982.

I. Letter from Martin A. Welt to Bernard Bevill dat ed April 2, 1982.

J. Letter (and enclosed memorandum dated April 13, 1982) from Donald A. Nussbaumer to E. Frank Wilson dated April 22, 1982.

K. Neutron Products, Inc. drawing Number A200234-D dated December 29, 1981, sheets 1 of 2 and 2 of 2.

p, , .

L.-.-

p REGISTRY OF. RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED. SOURCE l

N_Q1 NR-474-S-801-S ,

DATE: -July 26, 1999 PAGE 6 OF 6 SEALED SOURCE' TYPE: Irradiator Source REFERENCES ~ fCont'd):

L. Letter from Marvin Turkanis'to Bernard Bevill dated April 1, 1982.

M. Letter from Marvin Turkanis to Bernard Bevill dated September 26,~ 1983.

ISSUING AGENCY:

U.S. Nuclear Regulatory Commission Date : ' .in1v 76.1944

~

Reviewer: X b

'SeungJAee Date: July 26, 1999 Concurrence: #i___

,,Ujaoar A- . e b:2 "

9

c REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE H Q.;,, N R - 4 7 4 - S - 8 0 1 - S DATE: July 26, 1999 ATTACHMENT 1 4

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' REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE

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1

r July 26, 1999 MEMORANDUM TO: Sandra Kimberley, License Fee Analyst Office of the Chief Financial Officer FROM: Seung J. Lee, Mechanical Engineer /s/

l Materials Safety and Inspection Branch l Division of Industrial and Medical Nuclear Safety, NMSS J I

SUBJECT:

INACTIVE STATUS: Process Technology ASSIGNMENT NUMBERS 99-34 The request from the State of Arkansas to relinquish sealed sources and devices (SSD) evaluation was accepted and NRC decided to resume regulatory authority for SSD evaluation and approval within the State of Arkansas, effective October 1,1998.

The corporation holding the registration certificate AR-474-S-106-S has gone out of business, therefore, we have converted the registration certificate , AR-474-S-106-S, to inactive status and have assigned it the new registration certificate number, NR-474-S-801-S. If you have any questions, please contact me at 415-5787 or Mr. Ujagar Bhachu at 415-7894.

i i

l Distribution: (.

IMNS r/f SSD-99-34 NR-474-S-801-S NE01 DOCUMENT NAME: H:\SJL\ pro._ tech.IND Ts> receive a cop r of this document, Ind6cate in the box: "C" = Copy without attachment' enclosure "E" = Copy with attachment / enclosure "N" = No copy OFFICE MSlB E MSIB .l NAME SLee (// UBhachu ,Ml6*

DATE 06/14 /99' 06/u/99 "

OFFICIAL RECORD COPY i

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I REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES ,

SAFETY EVALUATION OF SEALED SOURCE i

i NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 1 OF 6 SEALED SOURCE TYPE: Irradiator Source MODEL: Dwg A200234-D l

l l

l l

MANUFACTUBER/ DISTRIBUTOR: Neutron Products, Inc. l 22301 Mt. Ephraim Road P.O. Box 68 Dickerson, Maryland 20842-9703 l ISOTOPE: MAXIMUM ACTIVITY: .

1 Cobalt-60 22,000 Curies (814 TBq) 1 LEAK TEST FREOUENCY: 6 months PRINCIPAL USE: (M) Gamma Irradiator, Category IV CUSTOM DEVICE: X YES NO CUSTOM USER: Neutron Products, Inc.

22301 Mt. Ephraim Road P.O. Box 68 Dickerson, MD 20842-9703 kf l hupw ,- J

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 2 OF 6 SEALED SOURCE TYPE: Irradiator Source DESCRIPTION:

The source consists of 4 assembly holders, with each holder contain 25 pairs of alternately stacked Co-60 wafers and spacer rings. There are 2 slits'in each holder to minimize self-attenuation. The holders are stacked within a single inner capsule which is sealed within an outer capsule. Both the inner and the outer capsules are fabricated from 321 type stainless steel tubing and rod. All seals are accomplished by tungsten inert gas welding. Each Co-60 wafer is 0.745 inches (18. 92 mm) in diameter and 0.073 inches (1.85 mm) thick; each assembly holder is 3.825 inches (9.72 cm) long and 0.812 inches (2.06 cm) in diameter; the active length of the source is 15.3 inches (38.86 cm); the inner capsule is 16.125 1 0.05 inches (40.96 0.13 cm) long; and the overall length of each source is 18.45 0.05 inches (46.86 0.13 cm) and is 1.0 inches (2. 54 cm) in diameter LABELING:

The source is labeled with "NPI-XX" and the serial number only.

Any other labeling was considered impractical. "XX" is the year of fabrication.

DIAGRAM:

See Attachments 1 and 2.  !

1 CONDITIONS OF NORMAL USE:

t l The source will be used in a panoramic gamma irradiator (with wet l

source storage) for'the irradiation of biological and other materials by the custom user. Use conditions should not exceed those specified for ANSI classification 43424.  !

l I

l I l

l

REGISTRY OF RADIOACTIVZ SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 3 OF 6 SEALED SOURCE TYPE: Irradiator' Source PEOTOTYPE TESTING:

Prototypes were tested in accordance with standards set forth in ANSI Standard N542 for the classification of sealed sources. The recommended required test levels for these sources are 43424; the actual performance of the prototypes was 53525. There were no failures at any test level.

OUALITY ASSURANCE AND CONTROL:

Material selection, inspection, testing and fabrication is the same as the NPI sources in the Source and Device Catalog which includes tubing and end cap shock tests and analysis; evaluation of 5 sequential prototype welds to qualify each weld configuration; preparation and evaluation of a dummy weld after each 10 sources; and, helium bubble and wipe testing of the inner and outer capsules with surface contamination not to exceed 0.05 microcuries (1,850 Bq) for the inner capsule and 0.005 microcuries (185 Eq) for the outer capsule. Source )

activity is determined by comparing the exposure rate generated j by the source standard. The procedure used has determined source l activities which have been correlated when tested by other procedures and users.

l LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:

i A. While not necessarily required, the manufacturer recommends:

1. Avoiding the following: ,

J

a. prolonged storage in water with a resistance lower than 10,000 ohm-centimeters;
b. prolonged use or storage in still air; I
c. prolonged storage in the proximity of mild steel, I brass or other dissimilar metals.
2. That sulfuric acid be used in lieu of hydrochloric acid l l

in storage pool demineralizer resin systems.  ;

B. NPI source drawing A200234D is to be distributed only to I individuals heving a specific license issued by the NRC or an Agreement State.

I r j

E REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE HQi NR-474-S-801-S DATE: July 26, 1999 PAGE 4 OF 6 l

SEALED SOURCE TYPE: Irradiator Source 1 LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE (Cont'd): \

l C. Installation, dismantling, relocation, repair, initial l testing, replacement and/or disposal of the source shall be performed in accordance with the terms and conditions of a specific license issued by the NRC or an Agreement State.

D. Upon routine quality control inspection by the manufacturer, microcracking in the welds was noted. Further review of this problem revealed that the discovered microcracking is a phenomenon commonly associated with the welding of 321 stainless steel alloy. Subsequent intensive testing and ana' lysis.of the microcracking as referenced in References D through I indicated that no significant problems attributed to the observed microcracks should exist for at least 2,000 years.

E. Prior to transferring the sources to a licensee other than the named custom user, it is recommended that a detailed metallurgical engineering evaluation be performed to determine the integrity of the transferred sources. Special attention should be given to the growth of the noted microcracks.

SAFETY ANALYSIS

SUMMARY

The Model Drawing A200234-D source is no longer manufactured or distributed by Neutron Products, Inc. and Process Technology is no longer in business. This source was transferred to the  !

Radiation Technology, Inc. and then to the ranufacturer in 1995.

Therefore, the registration certificate is being converted to an inactive registration certificate.

The source was originally approved for licensing purposes by the Arkansas Division of Radiation Control and Emergency Management Programs. Because of the limited information available on this j source, no safety evaluation of the device was performed as part l l of the conversion of the certificate to inactive status.

, i

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i

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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 5 OF 6 SEALED SOURCE TYPE: Irradiator Source

REFERENCES:

A. Letter from Neutron Products, Inc. to Radiation Technology, Inc. dated December 30, 1981 and signed by Marvin M.

Turkanis.

B. Letter and enclosures from Neutron Products, Inc. to Radiation Technology dated February 2, 1982 and signed by Marvin M..Turkanis.

j C. Letter from Neutron Products, Inc. to the Arkansas l Department of Health dated February 17, 1982 and signed by Marvin M. Turkanis, 1

D. Crack Propagation Analysis dated March, 1982 and prepared by l Ray Fasiczka of O'Donnell and Associates, Inc.

E. Memorandum from Julius Heuschkel to Marvin Turkanis through  !

Ray Fasiczka dated March 22, 1982. l F. Letter from O'Donnell and Associates to Marvin Turkanis  !

dated March 29, 1982.

G. Letter from Marvin Turkanis to Ted Russer dated March 30, 1982.

t H. Letter from Marvin Turkanis to Bernard Bevill dated April 2, 1982.

'I. Letter from Martin A. Welt to Bernard Bevill dated April 2, 1982.

J. Letter (and enclosed memorandum dated April 13, 1982) from Donald A. Nussbaumer to E. Frank' Wilson dated April 22, 1982.

K. Neutron Products, Inc. drawing Number A200234-D dated l

December 29, 1981, sheets 1 of 2 and 2 of 2.

f l

(- 1 I.

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 6 OF 6 SEALED SOURCE TYPE: Irradiator Source REFERENCES (Cont'd):

L. Letter from Marvin Turkanis to Bernard Bevill dated April 1, 1982.

M. Letter from Marvin Turkanis to Bernard Bevill dated September 26, 1983.

l ISSUING AGENCY:

U.S. Nuclear Regulatory Commission --

l 7 1 Date: .In1v 96. 1999 Reviewer: " /^ L'b - "

Seung J..' Lee Date: July 26, 1999 Concurrence: Ik3J *

,.Ujagar R nhach e 9

i

REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE l

l NO: NR-474-S-801-S DATE: July 26, 1999 ATTACHMENT 1

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ir' July 26, 1999 l

l l MEMORANDUM TO: Sandra Kimberley, License Fee Analyst Office of the Chief FinancialOfficer l FROM: Seung J. Lee, Mechanical Engineer /s/

l Materials Safety and Inspection Branch l Division of Industrial and l Medical Nuclear Safety, NMSS l

SUBJECT:

INACTIVE STATUS: Process Technology ASSIGNMENT NUMBERS 99-34 The request from the State of Arkansas to relinquish sealed sources and devices (SSD) evaluation was accepted and NRC decided to resume regulatory authority for SSD evaluation and approval within the State of Arkansas, effective October 1,1998.

The corporation holding the registration certificate AR-474-S-106-S has gone out of business, therefore, we have converted the registration certificate , AR-474-S-106-S, to inactive status and have assigned it the new registration certificate number, NR 474-S-801-S. If you have any questions, please contact me at 415-5787 or Mr. Ujagar Bhachu at 415-7894.

I I

l Distribution:

IMNS r/f SSD-99-34 NR-474-S-801-S NE01 r

DOCUMENT NAME: H:\SJL\ pro _ tech.IND T a receivi a cop r of this document. Indkate in the bos: "C" = Copy without attachment / enclosure T a Copy with aff achment/ enclosure "N" = No copy OFFICE MSIB E MSIB .l l l NAME Slee (// UBhachu llk DATE 06/14 /99' 06/u/99 OFFICIAL RECORD COPY iffenfowl /p

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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 1 OF 6 '

i SEALED SOURCE TYPE: Irradiator Source l

MODEL: Dwg A200234-D ,

l l

MANUFACTURER / DISTRIBUTOR : Neutron Products, Inc.

22301 Mt. Ephraim Road P.O. Box 68 l

Dickerson, Maryland 20942-9703 j I

ISOTOPE: MAXIMUM ACTIVITY:

Cobalt-60 22,000 Curies (814 TBq) l 1

l LEAK TEST FREOUENCY: 6 months ,

PRINCIPAL USE: (M) Gamma Irradiator, Category IV j l

CUSTOM DEVICE: X YES NO CUSTOM USER: Neutron Products, Inc.

. 22301 Mt. Ephraim Road l P.O. Box 68 l Dickerson, MD 20842-9703 l

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4 REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE EQ1 NR-474-S-801-S DATE: July 26, 1999 PAGE 2 OF 6 SEALED SOURCE TYPE: Irradiator Source DESCRIPTION:

The source consists of 4 assembly holders, with each holder contain 25 pairs of alternately stacked Co-60 wafers and spacer rings. There are 2 slits in each holder to minimize self-attenuation. The holders are stacked within a single inner capsule which is sealed within an outer capsule. Both the inner and the outer capsules are fabricated from 321 type stainless steel tubing and rod. All seals are accomplished by tungsten inert gas welding. Each Co-60 wafer is 0.745 inches (18.92 mm) in diameter and 0.073 inches (1.85 mm) thick; each assembly holder is 3.825 inches (9.72 cm) long and 0.812 inches (2.06 cm) in diameter; the active length of the source is 15.3 inches (38.86 cm); the inner capsule is 16.125 0.05 inches (40.96 i j 0.13 cm) long; and the overall length of each source is 18.45 0.05 inches (46.86 0.13 cm) and is 1.0 inches (2.54 cm) in diameter LABELING:

The source is labeled with "NPI-XX" and the serial number only.

Any other labeling was considered impractical. "XX" is the year of fabrication.

DIAGRAM:

See Attachments 1 and 2.

CONDITIONS OF NORMAL USE:

l The source will be used in a panoramic gamma irradiator (with wet source storage) for the irradiation of biological and other j materials by the custom user. Use conditions should not exceed l those specified for ANSI classification 43424.

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r REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE l

NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 3 OF 6 SEALED SOURCE TYPE: Irradiator Source PROTOTYPE TESTING:

Prototypes were tested in accordance with standards sct forth in ANSI Standard N542 for the classification of sealed sources. The recommended required test levels for these sources are 43424; the actual performance of the prototypes was 53525. There were no failures at any test level.

OUALITY ASSURANCE AND CONTROL:

Material selection, inspection, testing and fabrication is the same as the NPI sources in the Source and Device Catalog which includes tubing and end cap shock tests and analysis; evaluation of 5 sequential prototypt welds to qualify each weld configuration; preparation and evaluation of a dummy weld after each 10 sources; and, helium bubble and wipe testing of the inner and outer capsules with surface contamination not to exceed 0.05 microcuries (1,850 Bq) for the inner capsule and .

0.005 microcuries (185 Bq) for the outer capsule. Source activity is determined by comparing the exposure rate generated by the source standard. The procedure used has determined source activities which have been correlated when tested by other l procedures and users.

LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:

A. While not necessarily required, the manufacturer recommends:

1. Avoiding the following: l
a. prolonged storage in water with a resistance lower than 10,000 ohm-centimeters;
b. prolonged use or storage in still air;
c. prolonged storage in the proximity of mild steel, brass or other dissimilar metals.
2. That sulfuric acid be used in lieu of hydrochloric acid in storage pool demineralizer resin systems.

B. NPI source drawing A200234D is to be distributed only to individuals having a specific license issued by the NRC or an Agreement State.

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Tr REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 4 OF 6 SEALED SOURCE TYPE: Irradiator Source LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE (Cont'd):

C. Installation, dismantling, relocation, repair, initial testing, replacement and/or disposal of the source shall be performed in accordance with the terms and conditions of a specific license issued by the NRC or an Agreement State.

D. Upon routine quality control inspection by the manufacturer, microcracking in the welds was noted. Further review of this problem revealed that the discovered microcracking is a j phenomenon commonly associated with the welding of 321 stainless steel alloy. Subsequent intensive testing and i analysis of the microcracking as referenced in References D I through I indicated that no significant problems attributed to the observed microcracks should exist for at least 2,000 i years. i i

E. Prior to transferring the sources to a licensee other than the named custom user, it is recommended that a detailed 1 metallurgical engineering evaluation be performed to q determine the integrity of the transferred sources. Special q attention should be given to the growth of the noted j microcracks.

SAFETY ANALYSIS

SUMMARY

The Model Drawing A200234-D source is no longer manufactured or distributed by Neutron Products, Inc. and Process Technology is no longer in business. This source was transferred to the Radiation Technology, Inc. and then to the manufacturer in 1995.

Therefore, the registration certificate is being converted to an inactive registration certificate.

The source was originally approved for licensing purposes by the Arkansas Division of Radiation Control and Emergency Management Programs. Because of the limited information available on this source, no safety evaluation of the device was performed as part 1 of the conversion of the certificate to inactive status.

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REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES l SAFETY EVALUATION OF SEALED SOURCE i

l NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 5 OF 6  ;

SEALED SOURCE TYPE: Irradiator Source

REFERENCES:

A. Letter from Neutron Products, Inc. to Radiation Technology, f Inc. dated December 30, 1981 and signed by Marvin M.

Turkanis.

B. Letter and enclosures from Neutron Products, Inc. to Radiation Technology dated February 2, 1982 and signed by Marvin M. Turkanis.

C. Letter from Neutron Products, Inc. to the Arkansas Department of Health dated February 17, 1982 and signed by Marvin M. Turkanis.

I D. Crack Propagation Analysis dated March, 1982 and prepared by {

Ray Fasiczkalif O'Donnell and Associates, Inc.

E. Memorandum from Julius Heuschkel to Marvin Turkanis through Ray Fasiczka dated March 22, 1982.

F. Letter from O'Donnell and Associates to Farvin Turkanis dated March 29, 1982.

G. Letter from Marvin Turkanis to Ted Russer dated March 30, 1982.

H. Letter from Marvin Turkanis to Bernard Bevill dated April 2, 1982.

I. Letter from Martin A. Welt to Bernard Bevill dated April 2, 1982.

J. Letter (and enclosed memorandum dated April 13, 1982; from Donald A. Nussbaumer to E. Frank Wilson dated April 22, 1982.

K. Neutron Products, Inc. drawing Number A200234-D dated December 29, 1981, sheets 1 of 2 and 2 of 2.

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REGISTRY OF RADIOACTIV SEALED SOURCES AND DEVICES SAFETY EVALUAT JN OF SEALED SOURCE NO: NR-474-S-801-S DATE: July 26, 1999 PAGE 6 OF 6 SEALED SOURCE TYPE: Irradiator Source REFERENCES (Cont'd):

L. Letter from Marvin Turkanis to Bernard Bevill dated April 1, 1982.

M. Letter frcm Marvin Turkanis to Bernard Bevill dated September 26, 1983.

ISSUING AGENCY:

U.S. Nuclear Regulatory Commission --

7 __

Date: Julv 76. 1999 Reviewer: 1 " "' ["t~b '

~ Seung J./ Lee Date: July 26, 1999 Concurrence: Ik3) t

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Steri Genics intl 4 75 Tilbury Rd. Salem, NJ 08079-1507 Phone: (609)935-1400 Mao l Directions

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REVIEWER NOTE: July 26,1999 The checklist for this case is not used because the Model Drawing A200234-D source is no

. longer manufactured or distributed by Neutron Products, Inc. and Process Technology, the original custom user, is no longer in business. . Because of the limited information available on this source, no safety evaluation of the device was performed as part of the conversion of the certificate to inactive status.

Seung J. Lee

CONVERSATION RECORD (C:\SJL\ pro _ tech 1. con)

TYPE:

Outgoing Telephone l Incoming Telephone (704) 588-6877 l

Meeting i NAME oF PERSON CONTACTED: ORGANIZATION: TIME: DATE:

Mark Smith Steri Genic Inti 12:45 PM 6/14/99

SUBJECT:

Mark Smith informed me that the source was transferred to Haw River facility at North Carolina of Radiation Technology, Inc. and then to the Neutron Product, Inc. in around 1995. I Marvin Turkanis of Neutron Products, Inc. (301-439-5001) confirmed me that Neutron Products received the source.

j

SUMMARY

ACTION REoutRED: i 3

Convert AR-474-S-106-S to inactive status. '

PLACE THIS RECORo IN:

Registration File NR-474-S-801-S QA File Incident File General File PERSON DOCUMENTING THE SIGNATURE: DATE:

CONVERSATION' Seung J. Lee , ,' 06/14/99 L_

CONVERSATION RECORD (C:\SJL\ pro _ tech.Cn1)

TYPE:

Outgoing Telephone 501-661-2397 Incoming Telephone Meeting NAME oF PERSON CONTACTED: ORGANIZATION: TIME: DATE:

Steve Mack Arkansas, Div. Of 2:30PM 5/17/99 Radiation Controls

SUBJECT:

I asked Steve Mack to trace down the custom sources (material license no. ARK-628-BP 83 for Co-60 22,000 Ci)

SUMMARY

ACTION REQUIRED:

Convert AR-474-S-106-S to inactive status to NR-474-S-801-S r'.owing location of custom source.

PLACE THIS RECORD IN:

l Registration File NR-474-S-801-S l

QA File I I

incident File General File PERSON DOCUMENTING THE SIGNATURE: DATE:

CONVERSATION:

Seung J. Lee f 4h 05/17/99 l

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l CONVERSATION RECORD (C:\SJL\ pro _ tech. con)

TYPE:

Outgoing Telephone 501-661-2301 l Incoming Telephone l Meeting j NAME OF PERSON CONTACTED: oRGANIZATloN: TIME: DATE:

1 Cathy Bradley Arkansas, Div. Of 2:30PM 5/11/99 Radiation Controls

SUBJECT:

Cathy Bradley informed me that the custom user, Process Technology, Inc., inactive status is appropriate action. Process Technology, Inc. was taken over by Steri Genics, Inc. 4 to 5 years ago.

Marvin Turkanis of Neutron Products, Inc. (301-439-5001) did net know what happened to i Process Technology.  !

l

SUMMARY

ACTION REQUIRED:

l Convert AR-474-S-106-S to inactive status.

l PLACE THis RECORD IN:

Registration File NR-474-S-801-S QA File Incident File General File l

PERSON DOCUMENTING THE slGNATURE: DATE:

CONVERSATION:

! Seung J. Lee /

% 05/12/99 l

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