ML20211L391

Corrected Registry of Radioactive Sealed Sources & Devices, Safety Evaluation of Device for Models 35-0102 & 35-0103. Certificate:NR-8094-D-810-S

ML20211L391
Person / Time
Issue date:	07/05/1989
From:	NRC
To:
Shared Package
ML20211L369	List: ML20211L364 ML20211L391
References
SSD, NUDOCS 9710100179
Download: ML20211L391 (4)

Text

• ~

N[ TOW D V/O 5 REGISTRY OF RADIOACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE (Corrected Page)

JUL 0 $ Iggg (10.: NR19201100 DATE: Janua ry 03, 1969 PAGE 10F 4 DEVICE TYPE: Fill-level Gauge Source Holder MODEL: 35-0102, 35-0103

-MANUFACTURER / DISTRIBUTOR: Brun Corporation Columbus, OH MANUFACTURER / DISTRIBUTOR:

SEALED SOURCE MODEL DESIGNATION: Nuclear Chicago 850233

-p ISOTOPE: Cesium-137 MAXIMUM ACTIVITY: 115 mil 11 curies LEAK TEST- FRE00ENCY: 6 months PRINCIPAL USE: .-(D) camma Gauge CUSTOM DEVICE: YES- X NO h

97101CH)179 970929 g RC

• PDR

. O l

l l .

REGISTRY OF RADIOACTIVE SEALED SOURCES Atc DEVICES SAFETY EVALVATION OF DEVICE NO. NR19201100 DAH: January 3,1969 PAGE 2 0F 4 DEVICE TYPE: Fill-level Gauge Source Holder DESCRIPTION:

The outer physical characteristics of these devices are those of a closed steel cylinder 5-1/2 inches in height and 3-1/2 inches in diameter, mounted with its longest axis vertical-on a 1/4 inch thick steel-bottom plate. The bottom plate is attached to the cylinder with eight screws. The 1/4 inch thick steel top plate -is welded to the cylinder which has a wall thickness of 7/32 inch. A mounting bracket is welded to the cylinder wall. Each of the units is designed to be watertight.

The.only differences between the two units are in (1) the mounting brackets and electrical conduit entrances which are attached to the bottom and sides of the units, and (2) the beam collimators. The 35-0103 has a 27' collimator and the 35-0102 has a 30' collimator. The angles are measured downward from the horizontal at the top of the source. The ports are both fan shaped and are 1/4 inch wide.

The source of radiation is meJnted at the approximate center of a cylindrical shield consisting of two Mallory-1000 cylindrical shields fitted together one on top of the other. The lower shield section includes the beam port and suitable machined openings for the mounting of the Mallory-1000 source rotor. The source at the edge of the rotor is moved 45 degrees, in a horizontal plane, between the "On" and "Off" positions _by the application of power to the rotary solenoid mounted at the bottom of the shield assembly and coupled to the rotor. The solenoid acts against a return spring which returns the source to the shielded position when power is interrupted.

Internally mounted microswitches indicate the nosition of the source rotor as "On" or "Off" by parallel wired, dual, red and green lights at the control console.

LABELING:

A metal label 3-3/8 inches by 2-3/16 inches attached to the outside of the device 90' from the cable ennnector bears the following:

-:-- =x

REGISTRY OF RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF DEVICE

-NO.t NR19201100 DATE: January 3,1969 PAGE 3 0F 4 DEVICE TYPE: Fill-Level Gauge Source Holder

_L ABELING- (CONT'D) t

" CAUTION: RADIDACTIVE MATERIAL Cesium-137 mc Date of Measurement Model No. 35-0102 or 35-0103 BRUN CORPORATION COLUMBUS, OHIO" The label is basically yellow in color with black lettering and a magenta radiation symbol.

EXTERNAL RADIATibH LEVELS:

In accessible areas at one foot from the surface of the devices are 3 mr/hr or less with a 61 millicurie, cesium-137 source in the "Off" position. A radiation -

level of 7 mc/hr exists over a small area in the region of the beam port which is inaccessible with the unit installed. Radiation levels for higher activities may be derived by extrapolation.

LIMITATIONS AND/OR OTHER CONSIDERATIONS OF USE:

The devices were evaluated on the basis-that they will be mounted flush to the side of a steel mold thereby preventing access to the beam of radiation and reducing radiation levels in the forw:rd direction to about 0,1 mr/hr. If other applications are proposed, an evaluation of radiation levels in the forward direction will be necessary, The user is ' instructed-by the Brun Corporation-to avoid tampering with the device containing the cesium-137 sourr.e, . The Brun Corporation states that a service contract will_normally be sold with each de': ice to include visits at.six month intervals by a Brun Corporasion representative.for the purpose of inspecting the devices and performing source leak tests.

The Brun Corporation has also. stated that they will _ install- and relocate .the

. Source holders and-perform radiation surveys at the time of installation.

Since an "on-off" indicator is not located at- the source shield and since the control console may be remote-from the shield, consideratior, must be given to exposure of persons not: aware ~of the exposed position of the source.

~

i

REGISTRY OF RAD 10 ACTIVE' SEALED SOURCES Atl0 DEVICES SAFETY EVALVATION OF DEVICE fl0. : NR192D110U DATE: January 3,1969 PAGE 4 0F 4 DEVICE TYPE: Fill level Gauge Source Holder ISSUING AGENCY:

U.S. Nuclear Regulatory Comission

/ w

,aN s BRUN Corporation Y ,

I^

1150 West Third Avenue Columbus, Ohio 43212 614 29 9 4131 May 2, 1966 Mr. William O, Miller Isotopes Branch Division of Materials Licensing Atomic Energy Commission Washington, D. C. 205045

Dear Mr. Miller:

Thank you for your letter of April 19 (reference: ML 13 JMB) and approval of our model 02-0123 Gammagage (BRUN name for the device). In reply to your comments:

1. The source make and model is Nuc1 car Chicago, Model 850233, Scrial Number C-82, 52 me Ca 137 (their measurements).

Thank you for correctly surmising same.

2. Further clarity in the on-off position indication will be provided metal label at y(our suggestion, enclosureI) by the inclusion permanently affixad toof ansurface the additional of the source container on the side opposite the beam port.

3 The specific instruction sheet for the BRUN 02-0123 Gammagage is being developed and a copy will be forwarded to you as soon as it is completed.

4. Vibration and shock tests are scheduled for the latter part of May; the delay occuring so that we may concurrently evaluate the BRUN Mold Level Gauge, a test model of which should be completed by then.

We are planning to ship several Mold Level Gauger in the near future. The radiation housing in all of these gauges is exactly the same as that for our model 02-OP# ML-1, which you have pre-l vious)y approved for use under our r .a license 34-10752-1 (C 67),

except for a minor improvement in the locking mechanism which is described in the enclosure (2). There are modifications in the electrical connection and mounting systems of these devices which require our identifying them with a different model number than ppfh0$b

1. "'"" W & *de 0 (i...,*L.~ c-f/ ,,.

(e-Mr. William O. Miller May 2 Page two the 02-00 As the enclosed drawings will show (enclosure f C-2,0-3) 36-ML-1.

the 35-0102 device, which we hope to send to Calumet Steel Company, Laclede Steel Company and Keystone Steel Company, and the 35-0103 device which is destined for the Etiwanda Steel Company, will have no different radiation patterns than the 02-0036-ML-1, except in places where added metal providen additional shiciding.

I enclose the "Information on Licensing the Manufacture of Scaled Sources and/or Devices Containing Byproduct Material", to help you further evaluate both the 35-0102 and 35-0103 devices.

If you require further information, please let me know. '1 hank you for your consideration of thin application.

Sincerelyjours, d

, Q, % , i /m 4

!!. Richard Wood Radiation Officer IIRWids Enclosurent (six)

N .egA.=

i

/

ey c .

b' 3

g .

j - "

35-OfOk

• l

'}.'

Qi,l< y (,oj o 3, I.. ',),  :-)'

BRL%

Cor p o r a t io n q i~~

l150 West Tlilrd Avenue Columbus, p.

hio 43212 014 2 00 4131 June 17, 1966 4

v Mr. Jack Bell lootopea Branch Division of Materiala Liconalng Atomic Energy Cowniacion Washington, D. C. 20545 Dear.Mr. Bellt Thia letter la to confirm our telephono convernation of June 6, 1966.

1. The primary chielding and cource positioning mechanism which io used in BRUN Model No.'a 35-0102, 35-0103, 35-0402, and 35-0403 ocurce devices are identical, except for the thicknoca of the Upper Shield (Item No. 7), to the primary chiciding and pocitioning mechanism of BRUN Model No. 02-0036-ML-1,

2. The BRUN Model Ho.'o 35-0102, 35-0103, 35-0402, and 35-0403

• are designed to be watertight. The Bottom Cover (Item No. 2) la gaokoted with RTV material.

3. Wo will cond to you, for your recorda, the radiation profiles with 100 me of Cobalt 60 in BRUH courco dev..cca Model No.

35-0402 and 35-0403 ao noon no possible after thene devicca have been manufactured.

4. We are also enclosing a corrected title page for the DRUN ,

" Mold Levo] Gauco Instruction Manual, Model ML.1" dated ,

vasC' June 1, 1966.

which you have on Pleacc filo. insert it into our instruction manual)uk 'i)" 5 Thank you very much for your cooperation and if we can aupply any further information, plence do not healtate to call un.

Sincerely youra, w

Victor H. Fischer Project Engin t)),ie VHF:dg 4' ,p Enclonure: Corrected Title Page 8 '

9 l{), *JUN '511066*F-Cf')l0!n 0 M ,

,. a gg 00,N)b,.

enu nn, --. v,.$, )l$.. lf.II :.0.' .

~

S

}(-om2 , '

• l ' '//iM

~'

BRU%

Corporatton J l150 West Third Avenue Columbus, Ohio 43212 bi4 200 4131 June 1, 1966 14r. Jack Bc13 Isotopca Branch Division of 14ateriale Licenaing Atomic Energy Commincion Washington 25, D. C. 20545

Dear Mr. Boll:

Encioned is "Information on Licenaing the Manufacture of Scaled Souroca and/or Devicea Containing Byproduct Material" for two (2) new BRUN Corporation cource devicca Ho.' o 35-0402 and 35-0403.

Theoc aource devicca arc both donigned to uno a maximum of 100 me of Cobalt 60.

The "Information on Licensing" forma are identical to the forma for BRUN No. 35-0202 and 35-010) cxcept for the following changen:

Item C-1 " Refer to the Atomic Energy of Canada Limited Drawing No. C-168 for the de-scriptic.i of the Cobalt CO Gamma Source Capaule."

Item E - Added "The position of the device in dio-played by the use of indicator lighta which are labled as " Radiation Sourco Beam", "Open" and " Closed" ." The words " parallel wired were also added before the worda "groch lights" and " red lights" .

Item L - The words "and the instruction manual for the Mold Level Gauge will be forwarded na coon as copica are produced" were deleted since a copy of the Mold Level Gauge manual is nico enulosed with thin letter.

Itclosed, also, are dimensio'ned drawings of BRUN Drawinga No.

35-0102 and 35-0103 illustrating the dimensions of the collimator and the outer case wall thickness,

~Q.yl00$

c .

/>

IOR DIV. Of C0'FlWF

$ ' M . 4 f J ,, f, l lN, (f., , ' :: , ,,/ '

'. g

./ t I Hr. Jack Bell l l June 1, 1966 .

Page two 1

, Tho oteel tubing used for the outor cuoo of DRUN No.- 02-0036- l 1

ML-1 is identical to the 35-0102 and 35-0103, which is 31/2 in.  ;

i 0.D. by 7/32 in. Wall thickness. Tho' top and bottom,. cover plates were 3/16 in. thick for BRUN No. 02-0036-ML-1, but are 1/4 in.

thick _on 35-0102 and 35-0103.

Wo enclosed a typical installation drawing of our ocurce dovicco '

for mold lovel measurement in the Mold Level Gauge Instruction

! Manual. This DRUN Drawing No. 31-0034 illustratea relative position .

[ of the cource device with relation to the mold structuro.  !

i If we can supply any further information, pleano do not hooitate  :

to call us, f

Sincerely yours, 4

Victor 11. Flacher ,

1 Project Engineer VliF:dg ,

L j

Enclosures:

Information on Licensing i i Radiation Label

Drawing C-168 ,

Radiation.Profilco (3) .

.DRUN:Drawingo

No.'o 35-0402 & 3 35-0102 & 3 -

Mold Level Onuge Instruction Manual 1

- F

T' 7r%

g[\,, '

4/

f' 4, .x. ,

f vf .

4 . JUN,:ngg. ) 9 i

E.; ., c

t, J, f.

11 4

A

,N,,.,.'= . . . , w,.m.-- . , , - . .~. . . ,, , . . , , rl,,,,.,,-a- ,,,.,.,.,,,,.,w ~,,,m

y. ,,..,,,.-..,,,,.,a.,__n._.,,n w,__,,~,m.,. .e., ,,. . , , _ , ,.,n_._.,