Information Notice 1990-24, Transportation of Model Spec 2-T Radiographic Exposure Device

Transportation of Model Spec 2-T Radiographic Exposure Device

ML031210569
Person / Time
Site:	Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, Humboldt Bay, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, 07109056, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant, Crane
Issue date:	04/10/1990
From:	Cunningham R NRC/NMSS/IMNS
To:
References
IN-90-024, NUDOCS 9004040223
Download: ML031210569 (6)

UNITED STATES

NUCLEAR REGULATORY COMMISSION

OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS

WASHINGTON, D.C. 20555

April 10, 1990

NRC INFORMATION NOTICE NO. 90-24: TRANSPORTATION OF MODEL SPEC 2-T

Addressees

All NRC licensees authorized to use, transport, or operate radiographic

exposure devices and source changers.

Purpose

This information notice is provided to alert licensees of a recent change in

the NRC Certificate of Compliance No. 9056, which imposes more restrictive

requirements for proper transportation of the model SPEC 2-T radiographic

exposure device.

It is suggested that licensees review this information for applicability to

operations involving transportation of radiography devices, and distribute

it to persons responsible for proper transport of devices.

However, this

notice does not constitute new NRC requirements, and no written response is

required.

Description of Circumstances

A certificate of compliance is issued by the NRC when a specific package meets

the requirements of 10 CFR Part 71 and is approved by the NRC for transport of

radioactive material. Conditions for proper transportation of the model SPEC

2-T radiographic exposure device are stated in NRC certificate of compliance

(COC) No. 9056 (Attachment 1).

These conditions augment the requirements of

the U.S. Department of Transportation and 10 CFR Part 71 of the Commission's

Regulations for the transportation of radioactive materials.

Prior to this recent change, the COC specified that for transportation of more

than 110 curies of iridium-192, the radiographic exposure device must either

be within a protective overpack or transported by exclusive use shipment in

accordance with the requirements of 49 CFR 173.441(b). The purpose for this

condition was to assure that the radiation dose rate on the surfaces of the

radiographic exposure device or its overpack did not exceed 200 millirem per

hour.

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IN 90-24 April 10, 1990 The NRC was informed that the surface dose rate on the radiography device

could exceed 200 millirem per hour when loaded with 110 curies of iridium-192.

Apparently, the radiation measurements used to determine the 110 curie maximum

activity were not corrected for the distance between the surface of the device

and the effective center of the radiation measurement instrument. This cor- rection was because of the small dimensions of the model SPEC 2-T depleted

uranium shield.

Discussion:

The staff evaluated the information obtained from previous radiation measure- ments and determined that the dose rates had been underestimated. The maximum

activity in the model SPEC 2-T device that corresponds to a surface dose rate

of 200 millirem per hour is 45 curies of iridium-192. As a result, conditions

8 and 9 of the NRC's COC No. 9056 were amended to specify 45 curies instead of

110 curies. Also, the maximum quantity of iridium-192 per package was reduced

from 240 curies to 225 curies.

Users of the model SPEC 2-T device should be aware of the enclosed amended COC

No. 9056 issued on February 21, 1990.

Users should also note that a radiation

survey must be made prior to each shipment to ensure that the external radiation

levels of the devices or the overpack do not exceed the limits specified in

10 CFR 71.47, and 49 CFR 173.441.

This information notice does not require any written response to the NRC. If

you have any questions about this matter, please contact the appropriate NRC

regional office or this office.

Richard E. Cunningham, Director

Division of Industrial and

Medical Nuclear Safety

Office of Nuclear Material Safety

and Safeguards

Steyen L. Baggett, NMSS

492-0542 Attachments:

1. NRC Certificate of Compliance

No. 9056.

2. List of Recent NMSS Information Notices.

3. List of Recent NRR Information Notices.

-.

-.

9

Attachment 2

IN 90-24

April 10, 1990 LIST OF RECENTLY ISSUED

NMSS INFORMATION NOTICES

Information

Date of

Notice No.

Subject

Issuance

Issued to

90-20

90-16

90-15

90-14

90-09

90-01*

89-85

Personnel Injuries

Resulting from Improper

Operation of Radwaste

Incinerators

Compliance with New

Decommissioning Rule

Reciprocity: Notification

of Agreement State Radiation

Control Directors before

Beginning Work in Agreement

States

Accidental Disposal of

Radioactive Materials

Extended Interim Storage of

Low-Level Radioactive Waste

by Fuel Cycle and Materials

Licensees

Importance of Proper

Response to Self-Identified

Violations by Licensees

EPA's Interim Final Rule

on Medical Waste Tracking

and Management

03/22/90

03/07/90

03/07/90

03/06/90

02/05/90

01/12/90

12/15/89

All U.S. NRC licensees

who process or incinerate

radioactive waste

All materials licensees

All holders of NRC

materials licenses which

authorize use of radio- active material at

temporary job sites

All NRC Byproduct

Materials Licensees

All holders of NRC

materials licenses

All holders of NRC

materials licenses

All medical, academic, industrial, waste

broker, and waste

disposal site licensees

• Correct Number tor 90-01 should be 90010145.

--

iON=

mc PrE asl

cmERTIFICATE OF COMPLIANCE

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enR"

FOR RADIOACTM MATERIALS PACKAGES

ATTACHMENT 1

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pacagi

J edonet desced hi Iem S below. 1ablO

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of Federal legulations, Part 71. Paciaglig and Transportation of RadioactivO Matea

b. This certifct does

ot

a

imeu

mie onior trom Compliance with any Mwmmei

t d le

gutations of li Ut Osps'tent Of Trfanportation or other

applicable regulatory gencisL

cuding go governme

of any ountry through or ito which lie Packag will be Irneportd.

S. THIS CEPIICATIE m9 MUM ON THE BASIS OfA SAFrT AALVSW REPOT OF THE PACKAUE8E)NJo aO APPUCATI O

a. UILU TO Mm &WAimi

6.11111 AND

WMIG&TIC11lO

OF REPORT OR APPUCATION:

Source Production and

Source Production and Equipment Company Inc.

Equipment Company, Inc.

application dated March 13, 1989 as supplemented.

113 Teal Street

St. Rose, LA 70087

.o

7I-9056

4. CON011`1IO1 This eeottfdcate is sodo

I

ontutfI* lieInents of IC cm Pet il.

apolable, VW li ocfduon g Ald

below.

(a) Packaging

(1) Model fso.:

SPEC 2-T

(2) Description

A steel encased, uranium shielded Gamma Ray Projector. Primary

components consist of an outer steel shell, internal bracing, depleted

uranium shield, and a Zircalloy OS" tube. The contents are securely

positioned in the Zircalloy *SO tube by a source cable locking device and

shipping plug. The unit resembles a rectangular box approximately 130

long by 4-S/88 high by 4-1/40 wide with a maximum gross weight of 49 pounds.

(3) Drawings

The packaging is constructed in accordance with Source Production and

Equipment Company Inc. Drawing Nos. 12688-1. Rev. (0); 788-1 Rev. (0);

and 788-2 Rev. (05.

The packaging may also be as shown in Source Production and Equipment

Company Drawing No. 1000, Rev (0) provided fabrication was completed

prior to June 8, 1989.

The overpack is a 12 gallon open head 20 or 22 gauge National Motor

Freight Classification 100-G, Item 260 steel drum constructed in

accordance with Source Production and Equipment Company, Inc. Drawing

No. 53189-2 Rev. (0).

(b) Contents

(1) Type and form of material

Iridium 192 as sealed sources which meet the requirements of special

form radioactive material.

1. 4*4#53 SprP

'-S

comonnoNs (contkred)

U.S NUCLEAP RE£ULATC

'.

Page 2 - Certificate No. 9056 - Revision No. 6 - Docket No. 71-9056

(2) Maximum quantity of material per package

225 curies

6. The source must be secured in the shielded position of the packaging by the

shipping plug, source assembly, and locking device. The shipping plug and source

assembly used must be fabricated of materials capable of resisting a 14750F fire

environment for one-half hour and maintaining their positioning function. The

source assembly ball stop must engage the locking device. The flexible cable of

the source assembly and shipping plug must be of;sufficient length and diameter to

provide positive positioni g0 fhetsourice In tbe(gjuided position.

7. The nameplates must be 4fricated of materials capablie 6 resisting the fire test

of 10 CFR Part 71 and maintaining their legibility.

(W

B. For transportation'of more than 45 curies per package in private carriage the

shipment must belas accordance with 49 CFR 173.441(b). --,.2 A

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epackfge

bewa

9. For transportation of more than 45 curies per package beta common carrier, the

package must be within a protective overpack as-described and constructed in

accordance with 5(a)(3).

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.--

10. The packaging authorized by this certificate is hereby approved for use under the

general license provisions of 10 CFR 171.12.

11. Expiration date: August 31, 1994.

REFERENCES

Source Production and Equipment Company,'Inc. application dated March 13, 1989.

Supplements dated:

July 6, August 21, and August 28, 1989.

-

FOR THE U.S. NUCLEAR REGULATORY COMMISSION

Charles E. MacDonald, Chief

Transportation Branch

Division of Safeguards

and Transportation, NMSS

Date: FE

189

3

Attachment 3

IN 90-24

April 10, 1990 LIST OF RECENTLY ISSUED

NRC INFORMATION NOTICES

Information

Date of

Notice No.

Subject

Issuance

Issued to

90-23

90-22

90-21

90-20

Improper Installation of

Patel Conduit Seals

Unanticipated Equipment

Actuations Following

Restoration of Power

to Rosemount Transmitter

Trip Units

Potential Failure of Motor-

Operated Butterfly Valves

to Operate Because Valve

Seat Friction was Under- estimated

Personnel Injuries Resulting

from Improper Operation of

Radwaste Incinerators

Potential Loss of Effective

Volume for Containment

Recirculation Spray at

PWR Facilities

Potential Problems with

Crosby Safety Relief Valves

Used on Diesel Generator

Air Start Receiver Tanks

Weight and Center of

Gravity Discrepancies

for Copes-Vulcan Valves

Suppliers of Potentially

Misrepresented Fasteners

4/4/90

3/23/90

3/22/90

3/22/90

3/14/90

3/9/90

3/8/90

3/7/90

All holders of OLs

or CPs for nuclear

power reactors.

All holders of OLs

or CPs for nuclear

power reactors.

All holders of OLs

or CPs for nuclear

power reactors.

All NRC licensees

who process or

incinerate radio- active waste.

All holders of OLs

or CPs for PWRs.

All holders of OLs

or CPs for nuclear

power reactors.

All holders of OLs

or CPs for nuclear

power reactors.

All holders of OLs

or CPs for nuclear

power reactors.

90-19

90-18

90-17

89-59, Supp. 2 OL = Operating License

CP = Construction Permit