ML20043A107

Forwards Addl Info & Clarification in Support of Application for Amend to Certificate of Compliance 9222,dtd 900403.W/one Oversize Drawing

ML20043A107
Person / Time
Site:	07109222
Issue date:	05/16/1990
From:	Roy B SCIENTIFIC ECOLOGY GROUP, INC.
To:	Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
Shared Package
ML20043A108	List: ML20043A107 ML20127B312
References
NUDOCS 9005180063
Download: ML20043A107 (3)

Text

_ _ - _ _ _ - _ -

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. SCIENTIFIC ECOLOGY GROUP, INCJ

{

I May 16, 1990 Mr. Charles E._MacDonald, Chief Transportation Certification Branch l-U.S.

Nuclear Regulatory Commission _

l Washington, DC 20555 I

SUBJECT:

14-215 Shipping Package i

Certificate of Compliance No. 9222 Dear Mr. MacDonald As a follow-up'to my discussions with your Mr.

Easton, enclosed herewith is additiona1'information and clarification in support j

i of our April 3, 1990,-application for an amendment-to certificate 9222.

1 Confirming an interest alreadyl expressed- 'to Mr. Easton, and I

consistent with other correspondence related to our QA program and the like, we are requesting that the revised certificate be issued to the Scientific Ecology Group, Inc.

i I

appreciate Mr.

Easton?s prompt review of our submittal and trust you will apprise me if you desire additional information.

Very truly yours,

- aN]

..r-Bryan Roy Manager Engineering & Technical Resources BR/kp ENG-90-016 Enclosure (s) 9005180063 900516 PDR ADOCK 07109222 C

PDC l

P.O. Box 2530 1560 Bes Creek Rd.

Ook Ridge, Tennessee 378312530 (615) 481 @ 92

[.i '

v Mr. Charloo MacDonald Attachment May 16, 1990:

TheLfollowing information is-included-with:this letter:

1.-

-Revision 3-insert 'to the cask [SAR,_ " Safety Analysis: Report for the 14-215.Radwaste Shipping Cask", STD-R-02-016.

2.

A drawing: of-the cask -inserts, " Shield Inserts. for114-215 Cask", STD-02-006, Rev.lB.

3.-

HAn example computer-run shielding analysis _for'a 14-215 cask with an insert in place.-

The SAR has been revised only in-Section 7.0 to add a! discussion regarding the procedures-for-determining the suitability of fa

[

-particular waste container for shipment in the 14-215 cask.

In j

particular, we outline how dose rate-drives-cask and insert.

j selection and the options--thatL;the user has. -This section of'the 4

SAR is already. referenced in.the1 certificate.

A drawing.of cask inserts-that we intenditoJperiodically use with

-j the 14-215 casks is included _for your clarification.and~possible

)

reference in the certificate.

3 J

A Microshield analysis of a theoretical or bounding case _for a maximum Cobalt content shipmentLis included for your edification.

The case assumes a 14-215 cask'with 1"l thick insert and-a waste stream that is homogeneously contaminated _with only Co-60 (chosen.

because-of its high energy gammas and abundance.in commercial i

nuclear. plant waste streams).

The case was run to solve for the maximum Co-60 quantity that can be placed in a typical container and' waste form, shielded in the " inserted" cask,-

and meet the NRC/ DOT side wall dose rate limit at 2 meters of-10 mR/hr.

- l This case illustrates-the value of a cask insert (open-ended, sleeve-type) as a tool for

" fine tuning" cask-shielding' to various waste streams.

Note that the 1"

insert in the case essentially balances the shielding capability of the cask sides and ends to meet the regulations -(:26 Ci of Co-60 yields 10 mR/hr at 2m on sides and approximately 200 mR/hr contact at the ends).

Each shipment presents differences in waste

form, isotopes present, container sizes, etc. that influence whether an insert is desirable.

This analysis is provided as a bounding case example only.

It would be potentially confusing to users if referenced or placed in the SAR in our opinion.

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SAFETY = ANALYSIS REPdRT FOR THE-

- i 114-215 RADWASTE SHIPPINGLCASK-1 REVISION 3 Referencing 10CFR71' TYPE "A" Packaging Regulations-l

-STD-R-02-016

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Scientific-Ecology Group, Inc.

i 1560. Bear Creek Rd.

P. 0; Box 2530 Oak-Ridge, TN 37031.

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9005180065 900516 PDR ADOCK 07109222 C

PDC n

Decum3nt Num' ar:

Rev:

R v Date:

e WESTINGHOUSE STD-R-02-016 3

5-16 HITTMAN NUCLE AR INCORPOR AT E D -

Title SAFETY ANALYSIS REPORT FOR THE 14-215 RADWASTE SHIPPING CASK Prepared Checked Di rec tor Technical Q.A.

Rev, Rev Date By By Engineering Product Manager EWR we tal i. t 0

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12-11-87 s,

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is-88-033 2

3-20-90 90-011 1~~~

0)e/A 3

5-16-90 cm i

FORM Ol(B) p g.

1 or 130

'STD-R-02-016-MAY 161990 7.

OPERATING PROCEDURES Cask Selection

- - Prior-to-any-useiofi he-cas',ron evaluation-is performed-to' t

k ensure that the cask is'a suitable packaging.within which:to?

ship the waste.

Thig.. evaluation becomes a simple routine for-users generating consistent waste products. SEG works closely.

with users to verify that the. contained ~ waste product ~ is suitable in packaged size,.. form, Curie ' content and dose levels q

to be successfully loaded, surveyed, and shipped in the 14-215 cask.

Container ' envelope dimensions are compared to those Jof the cask cavity. Containers are typically; built to and identified =

by a :model number ' that correlates l with a given series of casks, facilitating'this: process..'The approved waste forms for the cask (Ref. Section 1.4) bound all routine waste forms generated and shipped ~ to the various' burial' sites..

Curie content is determined by generatior' waste 1 sampling and scaling methods which confirm that the waste does not exceed L.S. A.

concentration limits.

Because waste dose levels are highly dependent 'upon the mixture of isotopes present in the waste and the waste form (e.g.,

solidified waste, dewatered _ resins, paper filter cartridges), they are carefully evaluated during the cask selection process to ensure that the container, once placed in and shielded by the cask, will meet the NRC/ DOT dose rate limits (200mR/hr contact and 10mR/hr 9 2 meters (sides only).).

Typically, based upon previous shipments, of a generetor's waste stream, this evaluation is' accomplished by experienced judgement.

If, however, a waste container appears that it would approach these shielded dose rate

limits, a more rigorous analysis may be done to more closely predict the dose rate once the liner is placed in the cask.

Options available to the user at this point include:

1.

Load the container into the cask and obtain actual readings.

7-1 1

s.

STD-R-02'-016

'l

- MAY I 61990 2.

Hold container-for decay.

3.

Use the 14-215 cask with an inser t : heating J cask -

-payload limit.

]

'4.

Use.a cask-that is more heavily shielded;than the

.14-215 cask with.insertLyet provides~a sufficient-size ~ cavity-and-payload-to-accommodate-the waste r

container-(not ava'ilable for all container' sizes).

Ship the $cntainer and-' cask in a, closed transport 5.

vehicle.

Regardless of the. approach ' selected, once the container is-1 loaded, the dose rate-external 1.to the cask is measured'and~

l verified to be in accordance with Section ' 7. 6 prior to

shipment, cask Usaae i

The section which follows describes, the proradures - to be followed in using a 14-215 cask.

.Any maintenance activity, 1

- l such.as inspections, lubrication, gasket replacement / repair, etc.

described in this section is described in more detail in f;

Section 8.2, General Maintenance Program.

. -Q t

7.1 Liftina 7.1.1 The cask shall always'be lifted using the four (4) provided lifting lugs only.

.The lifting lugs are the vertically oriented-lugs on the sides of.the ' cask spaced at 90' around the cask circumference.

7.1.2 The primary lid lifting lugs shall only be used to lift the cask lid (primary lid with secondary lid installed) or the primary lid alone.

The secondary lid lifting lug shall only be used to lift the secondary lid.

7-2

_.,___...._.o

a STD-R-02-016-7.2-Removal / Installation of Cask Lids

.7.2.1.1 Release each ratchet-binder-handle..from its storage position.

7.2.1.2 Engage the flip block :to the sprocket wheel 'in the direction necessary to-loosen the-' ratchet-binder.

7.2.1.3 Loose'N the ratchet 1-binder by pulling; the handle in:the appropriate direction.

7.2.1.4 Remove the retaining pin from the upper ratchet binder piniand then remove'the. upper ratchet binder pin.

7.2.1.5 Remove the th'ree ' (3) primary lid liftingflug covers.

,i i

7.~2.1.6 Using the threei(3) primary lid lifting-lugs, l

suitable rigging and exercising caution -in.the.

.i

. handling of - the primary lid. due. to possible l

contamination of the ' underside of -the. lid, remove the primary lid.

I 7.2.2 Removal of Secondarv Lid

.f I

I 7.2.2.1 Remove the secondary lid holdown l.

stud nuts.

7.2.2.2 Remove the secondary lid lifting lug Cover.

7.2.2.3 Exercising caution due to the

.possible.

contamination of the underside of the secondary' lid, remove the secondary lid.

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STD-R-03-016L 7.2.3 Installation of Primary Lid

.7.2.3.1 Prior lto installation -inspect gasket for the followings-a.

Gasket fully securedito_the cask.-

b.-

Gasket not cut, ripped or. gouged..

i c.

Gasket is resilient.

1 1

d.

Gasket is' free.of.l debris... dirt and/or; grease,c..-

l 7.2.3.2 Prior to installation, verify-that-the date.of gasket

-changd' reflects compliance with the annual change requirements for the cask.

7.2.3.3c

_Using the three:(3) lif ting lugs on the primary' lid and suitable riggi_ng, lift and place lid on cask using-

alignment guides to ensure proper positioning.: Take care _not_to damage gasket'.

,l

~

7.2.3.4 Secure the primary lid to the cask as follows:

a.

Install the upper ratchet binder pin through the.-

j l ---

upper ratchet binder connector and the lid closure l

lug.

1 b.

Tighten the ratchet binder by engaging:the flip

. l-l

-block to the sprocket wheel and rotate the ratchet l

binder. Torque to-100 (1-10) ft-lbs.

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c.

Disengage.the flip block. Rotate.and secure the I

handle to its storage position.

l 1

j d.

Install the three (3) primary lid-lifting covers, t

7.2.4 Installation of Secondary Lid 7.2.4.1 Prior to installation, inspect gasket.for the 1

I following-J a.

Gasket fully secured to the primary lid.

b.

Gasket not cut, ripped or gouged.

W c.

Gasket is resilient.

d I

d.

Gasket if free of debris, dirt and/or graase.

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.STD-R-02-016-7.2.4.2 Prior.toiinstallation, verify;that~the date di gasket change reflects compliance with the_ annual change:

requirements for the cask.

7.2.4.3 Using' theLone. (1) lif ting lug on the ' secondary lid and suitable rigging, l' I t and; place lid into the opening.

on the primary lid.

Use alignment pins to ensure proper positioning. Take care not-to damage gasket..

t 7.2.4.4

- Install the secondary 111d stud nuta and torque'to 100

- (+10,-0) : f t-lbs.

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7.2'.4.51 IInstal'1 t'hi secondary ' lid"lifiing 5ug cover.

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7.3 Cask Loading 4

7.3.1 Survey empty cask and the vehicle carrying it to determine the loose and fixed contamination levels. Limitations pertaining to?

contamination levels shall be defined by regulations imposed.on the user by the applicable governing bodies.~

l 7.3.2 Inspect cask lid fasteners-to ensure that'all are present and undamaged.

-7.3.3 Check to ensure that cask lid'(primary >and secondary). lifting-lug covers are with the cask.

7.3.4 Remove pr imary. lid in accordance with Section 7.2.1.

7.3.5

-Remove secondary lid in accordance with Section 7.2.2, if required.

7.3.6 Inspect interior of cask for standing water.

NOTE:

Water must be removed prior to shipment.

7.3.7 Inspect interior of cask for obstructions to loading.

i 7.3.8 Inspect interior of cask for-defects which might affect the cask integrity or shielding afforded by the cask.

7.3.9 If loading drums on drum pallets, proceed as follows:

a.

Load drums on each pallet, b.

For maximum shfelding, position higher dose rate drums in=the center of the pallet and toward the front and rear of the.

trailer.

c.

place slings around or along side drums to prevent pinching or damage to the slings by the lids or top pallet in the cask, d.

Place the loaded pallets in the cask.

7-5 0024k

J J

STD-R-02-016 mig 2 0 G e.

For the cask lids removed for'the loading process, inspect cask' lid gaskets. install lids and secure as described in-respective sections.-

1 1

7.3.10 If loading preloaded containers, proceed as follows:

l a.-

Ensure all lids, plugs,scaps, etc.-are installed on container.

b.

Place container-into the cask.

l c.-

Insta11' shims / storing between-container and cask as necessary L

c_

-. to. secure-the container zin position. -

t y

1 d.

For the' cask lids removed.for the. loading process, inspect-cask lid gaskets. install: lids and secure as described in respective sections.

7.3.11 If loading-into container inside cask, proceed asLfollows:

a.

Place empty' container in the' cask.

I b.

Install shims / shoring'between container'and cask as necessary to secure the container 1.n position.

c.

Inspect primary cask lid gasket, ' install and secure primary lid as described in respective section.

d.

Load the waste into the container through the secondary lid opening.

e.

Install the liner lid, plugs, caps, etc. onto the container, f.

Inspect secondary lid gasket, install and secure secondary lid as described in respective section.

I 7.3.12 Install tamper-proof seals on the cask lids.

I j.

7.4, Removal / Installation of Cask from Trailer 5

7.4.1 Cask Removal from Trailer 7.4.1.1 Loosen ratchet binders / turnbuckles uns necessary to remove pins from shackles at the cask end of tiedown system.

7.4.1.2 Remove pins from shackles.

7.4.1.3 Using four (4) cask lif ting lugs and suitable rigging, lift cask off trailer.

NOTE:

Do not use cask lid lifting lugs to lift the cask.

7.4.2 Cask Installation on Trailer 7.4.2.1 Using four (4) cask lid lugs and suitable rigging lift cask-and place cask in proper position within the shear ring.

0024k 7-6

1;

.(

c e-STD-R-02-016-NOTE:

Do not use cask: lid lif ting lugs t'o lif t the cask.'

7.4.2.2-Inspect tiedown:1ugs and shackle's on cask and' trailer for. cracks-and wear which would af fect their strength.

7.4.2.31 Inspect tiedown cables to ensure they are not damaged (crimped, frayed._etc.)

7.4.2.4 Inspect tiedown ratchets / turnbuckles to ensure they.

are = in. proper working condition.

7.4.2.5 Installia shackle through the.. cask.,end'of__each tiedown.._.

cable and attach the shackle to the cask tiedown lug..

7.4.2.6

. Tighten ratchet binders /turnbuck1'es as necessary to -

~

secure cask on-trailer..

7.5-Containment Penetration Seals If the tamper-proof seal on the cask cavity drain line-or vent line j

has been removed..the pipe plug used to seal that line mustLbe-removed and properly reinstalled.. Installation of the pipe. plugs used to seal <the cavity draim.line and vent line shall be done-using a pipe joint sealing compound. Pipe _ plugs shall be torqued to 20 (12) ft-lbs..Immediately after installation of the plug a new tamper-proof seal shall be installed.-

7.6 Preparation for Shipment'

]

7.6.1 Perform radiation surveys _of cask and vehicle, including a determination of surface contamination, to j

ensure compliance,with 10CFR71.47-and 10CFR71.87'and l

complete the necessary shipping papers, j

eertifications', and checklists.

j i

7.6.2 Placard vehicle and label cash as necessary.

7.7 Receiving a Loaded Cask i

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The receiver, carrier and shipper are to follow the instructions of-10CFR20.205 when a package is delivered.

These instructions include surveying the external surface of the cask for radioactive j

contamination.

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ed f Songtf Q-1orMt./krA $ $ce M t./Os! $ $h..

GEOMETRYf 7 ' Cylind(rical: source i f romD side:-t cylindricalishieldsi

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tkn f Dose ~ poin t? heig ht i T rom : b'ase....l. '...'./... '.:.'...-.i Y :.

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195.2505 E "i.

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Source cy linder - radius ; ',.I. IV.*h4 r).*..........s-T1.

96.520;

("(StiA N.

f LThickness ' of. second: shield 6*.45P'* f.dtt< MD.'.

dTO t3.823/

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Source VolumeilS.'64970e46 cub'ic centimstercM%kCG1 >

1 MATERIAL 0DENSITIESf(g/cc)::

Material;

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Shieldf3,. Shield;4)

. Ai r? g a p

. Air.

+'

.001220 Aluminum

. Carbon Concrete

-Nydrogen

' Iron 7.860-7.860 Lead

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17.GC(}FyC5&b'OW(yk) 1 Group-. Energy

' Activity:

Dose?poinb 1 lux [

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TOTALS:

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~ ROY-CO60.MBH-EDates

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~Run datas May-14,=1990 By s'-

Run time '5

371p.m'.

' Checked:

6 CASE: EMAX COk601 LOADING *.0F:# -215-CASK

'( solycW chhd dose leJ

+

Cylindricalso'urcefrom' side [Mc)klindrical: shields'.

LGEOMETRYi7:

Distance-to detector..........:....:...........

- --Sou r ce -l en g t h....~. v t ~. r;.T.^.

..W'.~. T.'. ~.. ' I.....L X.-107.353.; w a acm. + -"

L; 193.040'

.,2 N

Dose'j poin t helg ht 1 rom :. ba se........ :.........'... c Y-l

!95.250..

Source cylinderLradius.. UT*.hiWh....... ~... '..

96.5201 "l: L(St iM,

--.T hi ckness' of second s hiel dl ( L*.k.5U.4. S t. l*.9tr.OfkT1 ii T2'

'3.823 I" '(l#i M -

-Thickness of t hi rd c hi e l d' '. ( lted..........'..-

-Thi cknost. of !; f ourth shiel d..(.o#d.de40.......

T3 L 4.'775-

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"" :-(o;gwd4 Microuhield = inserted. air ; gap........'...-...... airs 10.'003

".(;,pt@

Source: Volume:' 5.64978e+6< cubic centimeters (IV1. (, cry; MATERIAL-DENSITIESJ(g/cc):

, Mater 5a1 Sourco' Shield 2.

Shield 3'-

TShield;4-JAir gap Air

.001220-Aluminum Carbon i

Concrete.

j Hydrogen

< Iron 7.860 7.860' Lead 11.30 Lithium-Nickel

, Tin Titanium" Tungsten

'Urania Uranium Water

.7210 Zirconium j

a 1

so-e-s q.s a a w A m a.i m s m a G m ~ g

-1 dash - M is. cmsenaAve, gic t rg M ; 45. lo Elb/cf Y 1

sL;u 2=

ns,a u com 3L.u.c & Ast ShlM 3

• M 1

a

~

',$ Vd) Hc Ovh sWJ ol N et.sle.

l l;

i

.r

=q W^ '

x,-,, ;.--

qg s.

y

> 47 q

4 y.-.-

w; p

g n iy

.-e lCh W G $ t((

31 u.

s

, x z

1 tPage i

Filet-ROY.-CO6$MSHis 4:"

CASE : MAX.LCD-60j LOADING LOF;1/(-215 CAST..

4

.. I

-Ei BUILDUP'FACTORr1 based onsTAYLORJmethod.'

4 Using?thefcharacteristics ofJithe" materials /in shield?-1..

,f

'W 7

INTEGRATIONLP RAMETERSil D'

ONumber of'Elatera17 angle 4~negmen tsi!( Nthe ta ). :..... -

S_?'

w. _

- NumberJ of a::imuthe1 Jangle / segmentsO(Npsi)'.....:

5:

l Number 1o15 radialisegmen ts s ( Nradius )....:....-. ;._..;g 5).; '_,g a. g. y L.W - -

a~

- + - ~

=~~W m"T

^^ ~ ~ '

g..

i t

SOURCE;NUCLIDES:L -

s

.Nuclido -

, Curies.

Nuclide.

Curies

Nuclide?

Curies.:

_7 Ba-137m :0 OOOOe+00 DN-16'

-0;OOO0e+00

Co-60<

2;6000e+01'

~ Cn-137v L O'.'OOOOe+001 C(CowTErY RESULTS:

gg fp.453dQ '

7

' Group Energy ' - ( photon s/ se c ) ' lMeV/-(sq cm)/sec.

.(mr/hr);

Activity C

H, (MeV)

Dose 5pointjfl'un Dose ratet

'1 1

1.3359 9;620e+11.

71.375e+04 2.482e+01:

,2 1.1797-9.620e+11:

8.-1 8 8 e + 0 3 -

1. 1.521e'+012 13

.6953.

~1.569e+08:

8.197e-02'

-1.680e-04

~4 5

6 "7

8 9

.10 11 12 13 t

14 15 g.

16

1',.

4 18 1

19 20 3

TOTALS:

1.924e+12 2.194e+04 4'.OO3e+01' 1

'I (qomg/sc im.kaY U

q

__[_

q

ge v

g n,.

+

n.

g"

• g3 e

v i.

39 -

3

. 6-i

- - 9

,4 4

j

~.

+

y s'.

ig

.r12 c r o c n i e l d. 3. 0 0 '

' at W a m m spa st sa m ts en art M es s k a

~Page-

~ (Scientific Ecologyi Group l 46076).

1.

t31!

. File! heft:

7 9

File'

s:-TOP.MSH'

^

Date n a 1-

/-

fu.in - date s, May,1 D; 11990.,

' Run ; tifiie t 2:17 p.m.-

by s :

Checked i

~ CASEti

^

MAX CD-60 LOADING 0F.14-215 CASK

( Des c em. rw c~4*t*..J 4t r (.I w k..) pp. C o -b r')

CEOMETRY'10:=Cy1Andrical-source.1 rom ends. lab-shields' x

1 Di n t a n c e t o d e t e c t o r.... f.~...... w.. 4 '.. -....... X :

213.360.1 Bour.ce cy li nde r-r adlus...( Ae.4a.Y.".'t 4'W.l.".T;

.~

~

. -cm.-

afa l Bource ; cy l a nderi l eng th...(In4W. v't')s.%' Vj. T.'. ? R ~-

+

-l($1.N!

96.5; l

.....11,'

190.5i

~"1( W A ;

.Thi cknesi,. of = cecond shield. (64 nr. 9 t*r% WW P.'ttOT2.

12. 7..

' "; (tN ada '

1

Thickness

of L third shield...(.s# st. F/j H..f*lO

.. T3 '

_10.160.

-"f(qtc K ;

Source Volume 5.57313e+6 cub'icicentimeters 7

wC'_

I

,: MATERIAL:. DENSITIES (g/cc):

R Material' Source Shield 2 Shield:3-

~

-~~..._

A1r

.001220 Aluminum Carbon 6

Concrete

-Hydrogen I

Icon 1

7.860-

- Lead Lithium Nickel Tin 5

,y Titanium Tungsten:

Urania j

Uranium Water

.7210 Zirconium

!i

't 1

r d

c f

a 1!

4,

[

s

-h

~ ~ ~

3 v

p

=

..m n.

f ;-

J ].h

-i

, \\ ;,,. -

'~

'CA W l i ofli r=

I.-

[Page 2.

,' i l e s :. T O P'. M S H 1 F

, CASE: NAX:00-60.LOADINGLOF 14-215 CAEK-r,

-t-

~'

BUILDUPLFACTOR: based on~ TAYLOR method.-

f

..UtingLthe characteristics of'theinoterials in shield'1;=

t 1.

y./'

t i t.,.

i INTEGRATION FARAMETERS '

s Number of angle segmentsi(Npsi)..7............

5.

Number ofLradialir.egment

~

S (Nradius)...........=

-5

. w 4

-"~

" ~ ~ " " ~ ~ ^

. a- -- -:

SOURCE NUCLIDES:

- Nuclide Curies Nuclide:

' Curies

. Nuclide-

. Curies ^

Ba-137m-O.0000e+00' Co-60

2. 6000s+01..

Cs-137.

O'.OOOOe+00!

N-16 0.0000e+00>

s REGULTS '

1 Group Energy.

' Activity' Dose point flux

' Dose rate 44 (MeV)

(photons /sec)

MeV/(sq-cm)/sec (mr/hr)-

s

-_____-..)

(

1-1.3359 9.620e+11 6'.471e+04 11.16Be+02" 2!

1.1797-9.620e+11

'4.590e+0.4-

,8.530e+01-3

.6953 1.569e+0B 2.126e+00

'4. 370e 4 5

6 7

0 9

10 a-12 13 14 15 16 17-18 19

'20.

TOTALSt

'1.924e+12 1.106e+05' 2.021e+02-v 2o1.m 0-/Q:#b(A :

(pws dow ra syuly t.ue; I: :iY s

s w

e 4

l,

?' ;+

sj.

p t

1 <

1

. W n. y;

.l, y J -

.. :. -i

_v

_ C A $ C :: h ;}*

3 i.

t

• 'Macroshield 5.OBS

• ^"'

.=================n d-l a

+

N

. Sc'ientA11c.(Ecology Group - $1076)'~<..

(

i

'Page-f 11?

FilecRufiL L

Filet

.:1BTM;MSH:

'Run date: May 15,f1V90

-Date:'

/!

/

s

-Runitimes 2:17 p.m.

By :l 4

m

, ;; q s

Checked e.v LJi

.. 2

-CASE:/ MAX.CO 60'LOADINeiOFJ14a215' CASK!

GEOMETRY?los Cylindrical;; source from-end'- slab shields ~ -

n$

> ( Des 6 fit,A.~ n cnb.d af h ke bcEsk.Jt 'I **( CN@.-

s q(

Di s t an c e ' t o : d e t e c t o r..........'... '.v... i..~.. -... J X_.

2 0 1'. 2. _.,-,.

h j.p.

Source-cyli nder radius. r.t. ; rrn...".T.".T...W.[R.[ ^_

L 96'. 51

^

Lcm.#

2

"i J

< Source ' cylinder L l eng th......dlf#.4 c gtp MF.Wk T2 '

0.5J

...... '......... ; T 11 190.5

"4 Thickness of second shield..

i l

' ThicknesuL.ofi thirdi shield L.'.(# W. d. w i h..... ? T 3

'.10;160:

M, MicroshieldLinserted air / gap.........'..'......

air.

0.040 4 0'

~

f h

o

' Source VolumettS.57313e+6-cubic centimetersJ H__

4 MATERIAL' DENSITIES-(g/cc) L-a a

4 d

I

~ Material Source Shield 2-

.. Lair; gap-Shield 3:

. Air

-.001220:

001220 j"

Aluminum F

Carbon Concrete Hydrogen Iron 1;

7.860 Lead

)

Lithium r

Nickel Tin-i Titanium

~~

n

___ Tungsten Urania

= ;

Uranium

-I

' Water

.7210 Zirconium J':

i

i d

i

.+

s

--. s

.O

+

.e t

4 r

Y

':5 A [:';

4

C hit I test Page 2 Filet DTM.MSH CASE: MAX CD-60 LOADING OF 14_215 CASK BUILDUP FACTOR: bened on TAYLOR method.

Usang the charr.cteristics of the materials in shield 1.

INTEGRATION PARAMETERS:

Number of angle negments (Npsi)...............

5 Number of. radial segmento (Nradius)...........

5 SOURCE NUCLIDES:

Nuclide Curies NItclide Curios

.Nuclide Curles La-137m O.OOOOe+00 Co-60 2.6000e+01' Cs_137 O.0000e+00 N-16 0.OOOOe+00 RESULTS:

Group Energy Activity Dose point flux Dose rate (MeV)

(photons /sec)

MeV/(sq cm)/sec (mr/hr) 1 1.3359 9.6200+11 6.576e+04 1.187e+02 2

1.1797 9.620e+11 4.681e+04 0.697e+01 3

.6953 1.569e+08 2.197e+00 4.524e-03 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 TOTALS:

1.924e+12 1.126e+05 2.056e+02 i

2,Ok,rwC/br mkd

( prcAds d e>< r.34 1 )f ')

I de ve.. lim'd)

.........