ML20141H069
| ML20141H069 | |
| Person / Time | |
|---|---|
| Site: | Framatome ANP Richland |
| Issue date: | 07/10/1997 |
| From: | Edgar J SIEMENS CORP. |
| To: | Weber M NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| JBE:97:120, NUDOCS 9707210131 | |
| Download: ML20141H069 (9) | |
Text
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S I E M E r c..,
y July 10,1997 JBE:97:120 U.S. Nuclear Regulatory Commission Attn: Mr. Michael F. Weber, Chief.
Licensing Branch Divisior i n Fuel Cycle Safety and Safeguards, NMSS Washina an, DC 20555
Dear Mr. Weber:
Subject Ref.: 1.
etter, S.D. Chotoo to L.J. Maas, " Request for Additional Information, Rotary Vacuum Filter (TAC No. L30956) ", dated April 16,1997 Ref.: 2. Letter, J.B. Edgar to S.D. Chotoo, Response to NRC RAI (TAC L30956), dated May 21,1997 Ref.: 3. E-Mail, HD Felsher (NRC) to G.A. McGehee (SPC), " Questions on Rotary Drum Filter Amendment (L30956)", dated June 16,1997 Enclosed are Siemens Power Corporation's (SPC's) answers to the questions posed in reference 1
- 3. You will note that similar questions have been answered collectively. It is our understanding that these answers and the discussions with Ms. Hardin and Mr. Felsher at SPC's plant on July i
2 adequately address your concerns.
SPC is now scheduled to restart the mop powder uranium recovery process by approximately l
August 1,1997. We would appreciate receiving the amendment as quickly as practicable so we can adhere to that schedule.
Very truly yours, f.
Au=c4 ',
James B. Edgar Staff Engineer, Licensing cc: US NRC Region IV WCFO, Walnut Creek, CA bbf5l$llllflfl Siemens Power Corporation Nuclear Division 2101 Horn Rapids Road Tel:
(509) 37 0 8100 Engineering & Manufacturing P.o. Box 13o Fax:
(509) 375-8402 Richland, WA 99352-o130 e
'9707210131 970710 PDR ADOCK 07001257-C PDR
SNC Response to questions from Harry Felsher, NRC On 6/16/97 NRC sent 17 questions to SPC, via e-mail to G.A. McGehee, regarding the request for License amendment to support using a Rotary Vacuum Filter (RVF) in the Mop Powder dissolution process. SPC's responses are below.
Of these 17 questions, numbers 1. 2. 3. 6. 8,10. and 11 are essentially the same question. i.e.
How do SPC calculation models compare with the actual normal and abnormal operating I
conditions and what assumptions were used in these calculations? The attached table and sketch should provide you with the answers to each of these questions. Several files were (will i
be) sent to you via e-mail from G.A. McGehee. These files will enable you to view color plots from some of the KENO-Va models used which should assist you in your review.
As you review this process please note that passive design features (dimensions of the equipment) and neutron adsorption of the boron placed inside the RVF ensure the system remains sub-critical by a substantial margin for all credible conditions. The attached tables show that all the uranium associated with this process is assumed to be optimally moderated UO -H 0. In the actual process all the liquid processed through the RVF will be UNH with low 2 2 concentrations of uranium. The solid U bearing material filtered by the filter cake is the undissolved material from the dissolution stages of the process. This material is essentially dirt from the shop floor with 1-3 wt.% uranium. SPC expects to be able to bury the dried filter cake as low level waste.
Questions 4. 5. and 7 deal with the accident conditions possible with the RVF. A multi-disciplinary review team evaluated the possible accident conditions associated with the RVF.
l The accidents identified that could impact criticality safety are as follows:
-]
Optimum UO -H O mixtures are processed rather than the Mop Powder heals. (red mud) 2 2 The slurry depth in the pan builds up past the overflow untilit spills over the sides of the e
pan. (note that an entire shift will produce less than 5 gallons of filter cake)
]
. The knife fails to cut the cake at the 2.5-3.0" thickness as designed and the cake thickness reaches the maximum credible thickness of 3.5"(4.32"if you include the region between the filter cloth and the exterior of the drum wall.
l Some of the boron in the center of the RVF is somehow removed.
e
-The equipment design is such that passive design features (equipment dimensions) and the presence of the boron in the center of the RVF prevent all of the listed conditions that could I
approach critical it is impossible to remove all the boron from the drum without destroying the 1
RVF. The attached table lists the conditions that evaluate the conditions possible during i
upset / accident conditions.
Que' tions 9 Asks about the various dimensions SPC reported on the thickness of the filter cake s
during recent correspondence with the NRC. Confusion in this area is understandable. The l
- attached figure shows the maximum filter cake thickness possible (starting from the filter cloth) is 3.5 inches. When the license application was prepared, the dimension of the filter cake was i
listed as 4.32" to include the distance from the filter cloth to the outside wall of the RVF. The SPC Licensing Engineer included this distance as part of the filter cake dimension in the license amendment. The reason for including this dimension as part of the filter cake was to prevent
' potential confusion on the part of future NRC inspectors.
i l
. At your request, several informal exchanges of information have taken place. One such exchange included results of sensitivity studies on the boron concentration inside the RVF i
included filter cake 3.0" and 3.5" thick (as measured from the filter cloth). The attached table should clarify any confusion regarding the normal and possible abnormal filter cake thickness.
' Ouestions 12.13. and 14 deal with the boron carbide placed inside the RVF. Boron carbide
{
was uniformly mixed with a rubber epoxy compound and poured into h center of the RVF through a port in the side of the RVF. This material set up inside the filter and cannot be' i
removed without destroying the RVF. Samples of the rubber epoxy were taken and analyzed for Boron content by the SPC Laboratory. Additionally a neutron attenuation evaluation was i
made on the RVFs before and after the addition of the rubber epoxy material. These j
attenuation evaluations can be repeated by SPC at future dates to confirm the continued
. presence of the boron. The isotopic abundance of the Boron and Carbon used in this analysis are the natural isotopic abundance for these elements. The SPC laboratory confirmed thej B 4
content. The other isotopes will not have a significant impact on the calculation results when S
compared to changes in B content. The attached table lists the sensitivity of k, to boron i
content and the density of the epoxy poured into the RVF.
.j' Question 15 questions the reason for using of 21 volume % UO and 79 volume % H O in the 2
2 i
evaluation and also asks why mass is not limited at the RVF. The CSA demonstrates that these values produce the optimum conditions for criticality ( highest k,) The mass of the l
' uranium in the model is not impo: tant in this case because it is not measured or controlled in the procea. The important consideration is that at optimum ratios of urania powder and water k, remains substantially suberitical. Also included in this question was a request for the number densities used in this analysis. The number densities used are those generated by the SCALE-4.2 package when using the following input lines for material number 2:
uo2 2 0.22 293 92235 6.0 92238 95.0 end h2o 2 0.78 293.0 end Question 16 asks about the spacing provided Eween the RVF. The maximum k,for a single
~ RVF is 0.93085 as demonstrated in case a-35.135.45.170 of the attached table. The highest k, for the two RVFs in the design locations and the optimum amount of interspersed moderator (100 vol. % water) is 0.92812 as shown in case a-100. Case a-100 includes all the other tanks in the room at the designed locations. As a comparison 0 vol. % water as interspersed moderator results in a k, of 0.87350 as shown in case a-000 of the attached table. The
- equipment locations for these two models have been field verified and these equipment pieces cannot be relocated without cutting pipe and removing and re-installing equipment. The SPC configuration control program requires such changes to be reviewed by criticality safety. If tha
equipment in not replaced in kind and at the same location a new analysis is completed that
, demonstrates the replaced equipment and / or new location is acceptable.
Question 17 requests a detailed description of the hand calculations used and a detailed
~ description of the computer codes used for this analysis.
No hand calculations were used in this criticality safety analysis. The computers codes used for
- this analysis are the codes from SCALE 4.2 and the standard CSAS25 analytical sequence was used for this analysis. The cross section library selected was Hansen-Roach 16 group with some comparison cases run with 27 group cross sections. These tools are standard tools used by the NRC and its Licensees. For a detailed explanation of how these codes are used, major-assumptions made by the code developers, modeling techniques used to prepare problem specific cross section libraries, etc. the reviewer is referred to the user manual for the SCALE 4.2 system of codes.
4 4
-.m
T 8
Sheet 1 i
t l
I l
l l
l l
l l
Dimension (see attached sketch)
Material Region Expected Material @ Normal Conditums r1= radius of center vacuum tube m1 unh @ 200 g/l (max.) filling some portion of tube r2= radius to inside wall of filter m2 l
l l
r3= radius to outside wall of filter m3 b-si with a minimum of 0.66% boron r4= radius to outside of filter cloth m4 unh @ 200 g/l (max.) and air, mostly air r
r5= radius at maximum possible cake build up m5 diatomateous earth with some unh with a layer of red mud on ot r6= max. radius to trough.
l l
mh6 red mud (comprising unh, residual uo2, dirt) h1= distance from bottom of trough to midpoint of overflow mh7 same as above j
h2= distance from centerline of filter to top of pan i
mh8 same as above wd= width of drum wp= width of pan l
Equipment and Model Dimension Comparison l
Dimensions (cm) r1 r2 r3 r4 r5 r6 h1 h2 wd wp m1 1
Specified Quantity 1"
7 15/16" 81/8" 9"
12.5" max.
variable variable 11 7/8" variable Case ID Modeled Dimensions 0.5/droa-35.130.45.150 1"
7 15/16*
81/8" 9"
12 1/2" 13" n/a 41/2" 11 7/8" 15" uo2-h20 0.5/droa-35.130.45.160 1"
715/16" 81/8" 9"
12 1/2" 13" 4 1/2" 11 7/8" 16" uo2-h20 i
0.5/droa-35.130.45.170 1"
7 15/16" 81/8*
9" 12 1/2" 13" 41/2" 11 7/8" 17" uo2-h20 0.5/droa-35.130.45.180 1"
7 15/16" 81/8" 9*
12 1/2" 13" 4 1/2" 11 7/8*
18*
uo2-h20 0.5/droa-35.130.45.190 1"
715/16" 81/8" 9"
12 1/2" 13" 41/2" 11 7/8" 19" uo2-h2o 0.5/droa-35.130.45.200 1"
715/16" 81/8" 9"
12 1/2" 13" 41/2" 11 7/8" 20" uo2-h20 0.5/droa-35.135.45.150 1"
7 15/16" 8 1/8" 9"
12 1/2" 13.5" 41/2" 11 7/8" 15" uo2-h20 0.5/droa-35.135.45.160 1"
715/16" 81/8" 9"
12 1/2" 13.5" 41/2" 11 7/8" 16" uo2-h2o 0.5/droa-35.135.45.170 1"
715/16" 81/8" 9"
12 1/2" 13.5" 41/2" 11 7/8" 17" uo2-h20 i
0.5/droa-35.135.45.180 1
715/16" 81/8" 9"
12 1/2" 13.5" 41/2" 11 7/8"
,18" uo2-h2o i
0.5/droa-35.135.45.190 1"
7 15/16" 81/8" 9"
12 1/2" 13.5" 41/2" 11 7/8" 19" uo2-h20 0.5/droa-35.135.45.200 1"
715/16" 81/8" 9"
12 1/2" 13.5" 41/2" 11 7/8" 20" uo2-h20 i
0.5/droa-35.140.40.150 1"
715/16" 8 1/8" 9"
12 1/2" 14" 4'
11 7/8" 15" uo2-h20 I
0.5/droa-35.140.40.160 1"
715/16" 81/8" 9"
12 1/2" 14" 4"
11 7/8" 16" uo2-h2o 0.5/droa-35.140.40.170 1"
715/16" 8 1/8" 9"
12 1/2"
'14" 4"
11 7/8" 17" uo2-h20 P
0.5/droa-35.140.40.180 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4"
11 7/8" 18" uo2-h2o i
0.5/droa-35.140.40.190 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4"
11 7/8" 19" uo2-h20 0.5/droa-35.140.40.200 1"
715/16" 81/8" 9"
12 1/2" 14" 4"
11 7/8" 20" uo2-h20 O.5/droa-35.140.45.150 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 15" uo2-h20 0.5/droa-35.140.45.160 1"
715/16' 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h2o r
Page 1
_ ~ _
Sheet 1 0.5/droa-35.140.45.170 1"
'7 15/16" 81/8" 9"
12 1/2" 14*
'4 1/2*
11 7/8" 17" iuo2-h2o 0.5/droa-35.140.45.180 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 18" luo2-h20 0.5/droa-35.140.45.190 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 19" uo2-h2o 0.5/droa-35.140.45.200 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 20" uo2-h2o 0.5/droa-35.150.45.150 1"
715/16" 81/8" 9"
12 1/2" 15" 41/2" 11 7/8" 15" uo2-h20 0.5/droa-35.150.45.160 1"
7 15/16" 81/8" 9"
12 1/2" 15" 41/2" 11 7/8" 16" uo2-h20 0.5/droa-35.150.45.170 1"
7 15/16" 81/8" 9"
12 1/2" 15" 4 1/2" 11 7/8" 17" uo2-h20 0.5/droa-35.150.45.180 1"
7 15/16" 81/8" 9"
12 1/2" 15" 41/2" 11 7/8" 18" uo2-h20 0.5/droa-35.150.45.190 1"
7 15/16" 81/8" 9"
12 1/2" 15" 41/2" 11 7/8" 19" uo2-h20 0.5/droa-35.150.45.200 1"
7 15/16" 8 1/8" 9"
12 1/2" 15" 4 1/2" 11 7/8" 20" uo2-h20 l
I 0.5/droa-35.110.45.160 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h2o 0.4/droa-35.140.45.160 1"
715/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h20 0.3/droa-35.140.45.160 1"
715/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h20 0.2/droa-35.140.45.160 1"
715/16" 8 1/8" 9"
12 1/2" 14" 41/2*
11 7/8" 16" uo2-h2o 0.1/droa-35.140.45.160 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h20 0.0/droa-35.140.45.160 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 l
0.5/ bubbles /droa-000 1"
7 15/16" 81/8" j9" 12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 0.5/ bubbles /droa-010 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h2o 0.5/ bubbles /droa-020 1"
715/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 0.5/ bubbles /droa-030 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h20 0.5/ bubbles /droa-040 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo24eo 0.5/ bubbler /droa-050 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 0.5/bubblesdoa-060 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 0.5/ bubbles /drua-070 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 0.5/ bubbles /droa-080 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h2o 0.5/ bubbles /droa-090 1"
7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h2o 0.5/ bubbles /droa-100 1"
7 15/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h20 l
room /droa-000 7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h20 room /droa-003 715/16" 81/8" 9"
12 1/2" 14" 4 1/2" 11 7/8" 16" uo2-h2o room /droa-005 7 15/16" 81/8" 9"
12 1/2"
' 14" 4 1/2" 11 7/8" 16" uo2-h20 room /droa-010 7 15/16" 81/8" 9"
12 1/2" 14" 41/2" 11 7/8" 16" uo2-h2o room /droa-100 7 15/16" 81/8" 9"
12 1/2" 14" i
41/2" 11 7/8" 16" uo2-h2o Page 2
Sheet 1 I
tside m2 m3 m4 m5 mh6 mh7 mh8 kmean sigma kmean + 2sig uo2-h20 b-si 0.5%
uo2-h2o.uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.87284 0.00217 0.87718 l
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.883 0.00231 0.88762 i
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h2o uo2-h20 0.89145 0.00218 0.89581 i
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.90321 0.00229 0.90779
=
uo2-h20 b-si 0.5%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h2c 0.90516 0.00257 0.9103 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h20 0.92007 0.0023 0.92467 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.90155 0.00232 0.90619 j
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h2o 0.9073 0.00228 0.91186
_j uo2-h2o b-si o.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h20 0.92575 0.00255 0.93085 3
uo2-h20 b-si 0.5%
uo2-h2o uo2-h20 uo2-h20 uo2-h20 uo2-h20 0.93171 0.00249 0.93669 j
uo2-h20 b-si 0.5%
uo2-h2o uo2-h20 uo2-h2o uo2-h20 uo2-h20 0.93528 0.00227 0.93982 j
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.94557 0.00255 0.95067 l
uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h2o 0.93257 0.00275 0.93807 j
uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h20 uo2-h2o 0.93763 0.00221 0.94205 j
uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.95594 0.00239 0.96072 j
uo2-h2o b-si 0.5%
uo2-h2o uo2-h20 uo2-h20 uo2-h20 uo2-h2o 0.95718 0.00257 0.96232 uo2-h2o b-si 0.5%
uo2-h20 uo2-h20 uo2-h20 uo2-h2o uo2-h2o 0.97434 0.00263 0.9796
)
uo2-h20 b-si 0.5%
uo2-h2o uo2-h20 uo2-h2o uo2-h20 uo2-h2o 0.97685 0.0025 0.98185 uo2-h2o b-si 0.5%
uo2-h2e uo2-h2o uo2-h2o uo2-h20 uo2-h2o 0.93114 0.0023 0.93574 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h20 uo2-h2o 0.93829 0.0024 0.94309 Page 3
Sheet 1 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h20 uo2-h2o 0.94989 0.00223 0.95435 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.95432 0.00229 0.9589 uo2-h2o b-si 0.5%
uo2-h2o uo2-h20 uo2-h20 uo2-h2o uo2-h20 0.9653 0.00246 0.97022 uo2-h20 b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.98074 0.00268 0.9861 uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h2o 0.97972 0.00264 0.985 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h20 uo2-h20 0.98602 0.00252 0.99106 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h2o 0.99436 0.00262 0.9996 uo2-h20 b-si 0.5%
uo2-h20 uo2-h20 uo2-h2o uo2-h20 uo2-h20 1.00535 0.0024 1.01015 uo2-h2o b-si 0.5%
uo2-h20 uo2-h20 uo2-h2o uo2-h2o uo2-h20 1.01181 0.00217 1.01615 uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h20 1.01886 0.00237 1.0236 uo2-h2o b-si 0.5%
uo2-h2o uo2-h20 uo2-h2o uo2-h2o uo2-h20 0.93829 0.0024 0.94309 uo2-h20 b-si 0.4%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.94069 0.00253 0.94575 uo2-h2o b-si 0.3%
uo2-h20 uo2-h20 uo2-h2c uo2-h2o uo2-h20 0.94274 0.0024 0.94754 uo2-h2o b-si 0.2%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.95025 0.00242 0.95509 uo2-h2o b-si 0.1%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.96557 0.00243 0.97043 uo2-h20 b-si 0.0%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h2o 1.0017 0.00216 1.00602 uo2-h20 b-si 0.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h20 uo2-h20 1.00889 0.00273 1.01435 0 vol.% in drum uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.97337 0.00251 0.97839 10 vol.%
uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.96727 0.00299 0.97325 20 vol.%
uo2-h2o lb-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h20 uo2-h20 0.95624 0.00277 0.96178 30 vol.%
uo2-h2o !b-si r 7/o uo2-h2o uo2-h20 uo2-h2o uo2-h20 uo2-h20 0.95616 0.00307 0.9623 40 vol.%
Uo2-h20 lb-si u.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.94497 0.00309 0.95115 50 vol.%
uo2-h20 !b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.93987 0.00297 0.94581 60 vol.%
uo2-h2o b-ci 0.5%
uo2-h2o uo2-h2o uo2-h20 uo2-h20 uo2-h20 0.94521 0.00297 0.95115 70 vol.%
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o co2-h2o uo2-h2o uo2-h20 0.93911 0.00274 0.94459 80 vol.%
uo2-h2o b-si 0.5%
uo2-h20 uo2-h20 uo2-h20 uo2-h20 uo2-h2o 0.92958 0.00313 0.93584 90 vol.%
uo2-h2o b-si 0.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h20 uo2-h2o 0.93829 0.0024 0.94309 100 vol.%
uo2-h20 b-si 0.5%
uo2-h20 uo2-h2o uo2-h2o uo2-h2o uo2-h2o 0.86956 0.00197 0.8735 0 vol.% interspersed uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h2o uo2-h20 0.85478 0.00178 0.85834 3 vol.%
uo2-h2o b-si 0.5%
uo2-h2o uo2-h2o uo2-h2o uo2-h20 uo2-h2o 0.85893 0.00187 0.86267 5 vol.%
uo2-h20.b-si O.5%
uo2-h2o uc2-h2o uo2-h2o uo2-h20 uo2-h2o 0.87696 0.00229 0.88154 10 vol.%
uo2-h2o ib-si 0.5%
uo2-h20 uo2-h2o uo2-h20 uo2-h2o uo2-h20 0.9222 0.00296 0.92812 100 vol.%
Page 4
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