ML20129H287

Informs That Models 117 & AN/AAS-38A Laser Designators Acceptable for Licensing Purposes,Iaw Conditions of Registration Certificates NR-313-D-101-S & NR-313-D-102-S

ML20129H287
Person / Time
Issue date:	06/06/1991
From:	Thomas Rich NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Macare B External (Affiliation Not Assigned)
Shared Package
ML20129H147	List: ML20129H143 ML20129H154 ML20129H158 ML20129H168 ML20129H195 ML20129H267 ML20129H280 ML20129H287 ML20129H310 ML20129H319 ML20129H427 ML20129H458 ML20129H478
References
SSD, NUDOCS 9610310213
Download: ML20129H287 (1)

Text

l UNITED STATES l

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2..rcnt Mr. Bob Macare k M 71 Loral Aeronutronic S. orsad Ford Road g., agg Newport Beach, CA 92658 g, gy

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Dear Mr. Macare:

Based on the information and data submitted in your letter dated April 2,1991, and with enclosures thereto, we conclude that Model 117 and Model AN/AAS-38A Laser Designators are acceptable for licensing purposes in accordance with the conditions of the enclosed registration certificates NR-313-D-101-S and NR-313-D-102-S.

fEi?AM ILS Please read over the registration certificates in their e6tirety and notify us immediately if there are any errors.

If you have any questions, please contact megt (301) 492-0511 or Steven Baggett at (301) 492-0542.

Sincerely, w /W. Q Thomas W. Rich Sealed Source Safety Section Medical, Academic, and Commercial Use Safety Branch Division of Industrial and Medical Nuclear Safety Office of Nuclear Material Safety and Safeguards 1

Enclosures:

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Mr. Bob Macare Loral Aeronutronic Ford Road Newport Beach, CA 92658

Dear Mr. Macare:

Based on the information and data submitted in your letter dated April 2,1991, and with enclosures thereto, we conclude that Model 117 and Model AN/AAS-38A Laser Designators are acceptable for licensing purposes in accordance-with4ha conditi of the enclosed registration certificates NR-313-D-101-S and NR-313-D-102 Pons Please read over the registration certificates in their entirety and notify us immediately if there are any errors.

if you have any questions, please contact me at (301) 492-0511 or Steven Baggett at (301) 492-0542.

l Sincerely, UN Thomas W. Rich Sealed Source Safety Section i

Medical, Academic, and Commercial Use Safety Branch Division of Industrial and Medica!

i Nuclear Safety Office of Nuclear Material Safety l

and Safeguards l

Enclosures:

As stated l

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REGISTRY OF RADI0 ACTIVE SEALED SOURCE AND DEVICES SAFETY EVALUATION OF DEVICE (AMENDED)

JUN 0 61991 N0: NR-313-D-102-S DATE:

PAGE 1 of 4 DEVICE TYPE:

Laser Target Designator / Ranger 4

t MODEL: AN/AAS-38A LASER DESIGNATOR MANUFACTURER / DISTRIBUTOR:

1 Loral Aerospace Corporation, Aeronutronic Formerly Ford Aerospace Corporation Aeronutronic Division Ford Road i

Newport Beach, CA 92658 SEALED SOURCE MODEL DESIGNATION:

Amersham Model AMM IS0 TOPE:

MAXIMUM ACTIVITY:

Americium-241 9 microcuries LEAK TEST FREQUENCY:

Not Required l

PRINCIPAL USE:

(0) Ion Generators, Static Eliminators l

CUSTOM DEVICE:

X YES N0 l

l CUSTOM USER:

U.S. Department of Defense Principally the U.S. Navy i

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l REGISTRY OF RADI0 ACTIVE SEALED SOURCE AND DEVICES SAFETY EVALUATION OF DEVICE (AMENDED) l NO: NR-313-D-102-5 DATE:

JUN 0 a 1991 PAGE 2 of 4 l

DEVICE TYPE:

Laser Target Designator / Ranger DESCRIPTION:

The Loral Aeronutronic Model AA/AAS-38A Laser is used for laser target range l

and designation.

This device is attached to the Loral Aerospace F/A-18 forward looking infrared (FLIR) Pod located on the outer surface of the left engine inlet on the U.S. Navy F/A-18 aircraft.

t The device is contained in an environmental controlled cavity (AN/AAS-38A FLIR Pod).

The device shown in Fiture Nos. 1 and 2, contains two NRC-approved americium-241 (AM-241) sources Model AMM, for the removal of static charge, one at each end of the laser's Q-Switch crystal permitting it to maintain its large l

characteristic discrimination ratio.

The two sources are screwed and secured l

into the Optical Access Cover which is located on the laser transreceiver directly over the optics.

The cover is an aircraft standard aluminum alloy j

machining, 7.5 inches long by 3.4 inches wide by 0.4 inches high, which mounts the sources.

The optical elements of the laser are mounted within a sealed l

cavity directly below the cover.

The cavity is approximately 1.7 inches deep and is also machined from aluminum.

The sources are shown attached to the l

cover in Figure No.5.

The minimum thickness of the cover is.040 inches.

The sources are placed approximately 1.5 inches apart and are threaded into the l

cover.

An 0-ring is placed between the chassis and cover.

The cover is secured with seventeen screws and is opened only for depot maintenance.

This prevents the ingress of moisture and the cavity is filled with dry nitrogen.

Once assembled there is no access to the Am-241 sealed sources.

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The Am-241 foil disk is crimped within a cylindrical stainless steel (304) housing.

This sealed source is then placed in an aluminum holder and then secured within an aluminum threaded cylinder which is appropriately marked.

LABELING:

Each source assembly will be labeled on the sides of the threaded holder with l

the following: serial number, isotope, activity, and the trefoil radiation symbol.

The Optical Access Cover will be labeled in accordance with 10 CFR 20.203 and is granted a color exemption.

DIAGRAM:

See Attachments 1 thru 4

l REGISTRY OF RADI0 ACTIVE SEAL'ED SOURCE AND DEVICES SAFETY EVALUATION OF DEVICE i

(AMENDED)

NO:

NR-313-D-102-5 DATE:

JUN 0 61991 PAGE 3 of 4 l

DEVICE TYPE:

Laser Target Designator / Ranger l

t CONDITIONS OF NORMAL USE:

The sealed sources have obtained an ANSI classification of C54545.

The device is subjected to a military aircraft environment and is expected to have a service life of 15 years.

The extremes of environment for which the device is designed to withstand are as follows:

temperature -62 C to 95 C; vibrations 50-2000 Hertz; high humidity; salt fog; explosion; sand, dust, and fungus. Due to the sealed construction of both the Optical Module and the FLIR Pod, the device should not be affected by atmospheric conditions.

PROTOTYPE TESTING:

l The manufacturer reports that the device was tested to MIL specs except for salt, fog, and dust.

The FLIR pod that has also been tested to meet military specifications (MIL-STD-810C).

The device has been field tested in the configuration and with no incident of source failure.

EXTERNAL RADIATION LEVELS:

The manufacturer reports that there are no detectable radiation levels above background from the device.

I QUALITY ASSURANCE AND CONTROL:

The quality control program for the laser contained in the module is implemented by Litton Laser Systems.

Litton Laser Systems has supplied an adequare quality assurance and control program that conforms to MIL-Q-9858A.

A copy of the quality requirements governing the supply of the sources is on file with the Material Licensing Branch.

A Certificate of Conformity ensuring that the device meets the design specifications is supplied with each source and further checked by the USA i

manufacturer.

Tne USA manufacturer evaluates each component of the module to conform with MIL-specs.

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REGISTRY OF RADI0 ACTIVE SEAL'ED SOURCE AND DEVICES SAFETY EVALUATION OF DEVICE (AMENDED) i

(

NO:

NR-313-0-102-S DATE:

JUN 0 6199f' PAGE 4 0F 4

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i DEVICE TYPE:

Laser Target Designator / Ranger LIMITATIONS AND/0R OTHER CONSIDERATIONS OF USE:

The devices shall be distributed only to the specific licensee referred to on this document (U.S. Departement of Defense).

• ' Handling, Storage, Use, Transfer, and Disposal:

Shall be determined l

by the licensing authority.

Reviewer Note:

Service to the inside of the Optical Module must also include a swipe test to determine if there is any removable contamination.

This registration sFeet and the information contained with the references shall not be changed without the written consent of the NRC.

SAFETY ANALYSIS

SUMMARY

Based on our review of the information and design of the device, the past history of the sealed source design, we conclude that Model AN/AAS-38A device j

is acceptable for custom licensing purposes.

Futhermore, we conclude that this device would be expected to maintain its containment for normal condition of use which might occur during the uses specified in this registration sheet.

REFERENCES:

The following supporting documents for the Model AN/AAS-38A Laser Target Designator are hereby incorporated by reference and are made a part of this registry document:

Application dated September 13, 1988 with enclosures thereto.

Letter dated October 7, 1988, April 2, 1991 with enclosures thereto.

ISSUING AGENCY:

U.S. Nuclear Regulatory Commission JUN 0 61991 Reviewer:

2/evup, M,fM Date:

Date:

JUNna199, Concurrence:

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