results of implementation of new prompt fission neutron spectra data in rosfond
DESCRIPTION
RESULTS OF IMPLEMENTATION OF NEW PROMPT FISSION NEUTRON SPECTRA DATA IN ROSFOND. Gennady Manturov, IPPE. 2nd RCM Prompt Fission Neutron Spectra, 13 - 16 December 2011 , Vienna, Austria. Introduction. - PowerPoint PPT PresentationTRANSCRIPT
RESULTS OF IMPLEMENTATION RESULTS OF IMPLEMENTATION OF NEW PROMPT FISSION OF NEW PROMPT FISSION
NEUTRON SPECTRA DATA IN NEUTRON SPECTRA DATA IN ROSFONDROSFOND
Gennady Manturov, IPPEGennady Manturov, IPPE
2nd RCM Prompt Fission Neutron Spectra,13-16 December 2011, Vienna, Austria
2
Introduction
The main goal of the work is to use critical The main goal of the work is to use critical experiments for investigation of influence and testing experiments for investigation of influence and testing of PFNS data for 235U and 239Pu.of PFNS data for 235U and 239Pu.
International Handbook of Evaluated Criticality Safety Benchmark Experiments includes detailed descriptions of conditions and results of near 5000 critical experiments performed in many countries in the world.
Hereafter a set of selected experimental configurations from ICSBEP Handbook is applied for investigation of the influence and testing of Prompt Fission Neutron Spectra for 235U and 239Pu.
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List of experiments selected for the analyses and categorized in DICE database:
for uranium fuel: HEU-METAL-FAST and HEU-SOL-THERM type. for plutonium fuel: PU-METAL-FAST and PU-SOL-THERM type.
For the most of experimental configurations input data files are constructed to perform calculations using Monte-Carlo codes MMKKENO and MCNP.
Calculation results of the selected experimental configurations was obtained using MMKKENO and MCNP:
with original ROSFOND nuclear data files, with modified ROSFOND nuclear data files, according to V.Maslov’s
recommendations for new evaluation of the Prompt Fission Neutron Spectra for 235U and 239Pu isotopes.
Introduction (cont’d)
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Selected Test Models for the Analyses
HEU-Metal-FastHEU-Metal-Fast systemssystems HEU-Sol-ThermalHEU-Sol-Thermal systemssystems
PU-Metal-FastPU-Metal-Fast systemssystems PU-Sol-ThermalPU-Sol-Thermal systems systems
So called Pruvost’s curve was selected as a test object. The So called Pruvost’s curve was selected as a test object. The curve reflects dependence of critical radius for the sphere, curve reflects dependence of critical radius for the sphere, filled with solution of plutonium (or uranium) and filled with solution of plutonium (or uranium) and surrounded by thick water-reflector, from concentration of surrounded by thick water-reflector, from concentration of plutonium (or uranium) in the solution. The minimal plutonium (or uranium) in the solution. The minimal plutonium concentration corresponds to solution with k∞ plutonium concentration corresponds to solution with k∞ equal to 1, the maximal – corresponds to metallic fuelequal to 1, the maximal – corresponds to metallic fuel
2 LMFR Test models2 LMFR Test models
Hereafter we limit self by considering practical important cases – a set of experiments PU-SOL-THERM with plutonium aqueous solutions and PU-MET-FAST with metal plutonium.
Calculation Scheme Using Group and Continuous Nuclear Data
CONSYST
ABBN group data
set
299 n + 127
FormatGMF
299 n + 15 P5
MMKKENO Group Mode
TRIGEX FFCP
MCNPGroup Mode
PRECONS
EvaluatedNuclear
Data FilesFOND-2
NJOYGRUCON
MCNPContinuous
NJOY
FormatACE
ENDF/B-6, 7JENDL-3,4JEFF-3, etc.
SUBGRAN(subgroups)
ROSFOND
Reactor Physicscodes
Monte-Carlo codes
DORT-TORT, KATRIN
Shielding
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New 239PU PFNS
Table 1 – Description of finite plutonium Pruvost’s test models
№
kg 239Pu per liter H2O
№
kg 239Pu per liter H2O
№
kg 239Pu per liter H2O
№
kg 239Pu per liter H2O
№
kg 239Pu per liter H2O
1 0.008 5 0.012 9 0.03 13 0.5 17 10.0
2 0.009 6 0.013 10 0.05 14 1.0 18 14.0
3 0.010 7 0.014 11 0.1 15 2.0 19 19.74
4 0.011 8 0.020 12 0.2 16 5.0
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Results in Pruvost’s Curve
Table 2 – Description of the PMF systems
№ ID% fissions
in E>100 keVReflector
type№ ID
% fissionsin E>100 keV
Reflectortype
1 PMF01 98 - 9 PMF12 93 Al
2 PMF22 98 - 10 PMF24 91 HCH2
3 PMF40 98 Cu 11 PMF44b 90 Fe
4 PMF23 97 C 12 PMF44a 87 Be
5 PMF10 97 U 13 PMF11 79 H2O
6 PMF28 97 SS 14 PMF37b 75 H2O
7 PMF15 96 Fe 15 PMF37f 69 H2O
8 PMF06 95 U 16 PMF16 65 H2O
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Results for PMF Systems
Effect of PFNS of PU-239, PMF Systems
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
PMF01
PMF22
PMF40
PMF23
PMF10
PMF28
PMF15
PMF06
PMF12
PMF24
PMF44
b
PMF44
a
PMF11
PMF37
b
PMF37
f
PMF16
(PF
NS
/RO
SF
ON
D-1
)х1
00
%
MCNP Continuous (full)
MMKKENO 299 Group
MCNP Continuous (only spectrum)
12
Results for PMF Systems (comparison to experiment)
PMF Systems, MCNP Continuous
-1.25
-1
-0.75
-0.5
-0.25
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
PMF01
PMF22
PMF40
PMF23
PMF10
PMF28
PMF15
PMF06
PMF12
PMF24
PMF44
b
PMF44
a
PMF11
PMF37
b
PMF37
f
PMF16
(Re
su
lt/E
xp
eri
me
nt-
1)х
10
0%
ROSFOND
Experiment
PFNS
13
Results for PST Systems
14
Results for PST systems (comparison to experiment)
Results for HEU Systems (last year results)
MCNP continuous, HEU
0,995
0,9975
1
1,0025
1,005
HMF00101 HMF00401 HMF01801 HMF02001
K-e
ff
EXPERIMENT
ROSFOND
MASLOV
Results for HST Systems (last year results)
MCNP continuous, HST
0,985
0,9875
0,99
0,9925
0,995
0,9975
1
1,0025
1,005
1,0075
1,01
HS
T0
01
01
HS
T0
01
02
HS
T0
01
03
HS
T0
01
04
HS
T0
01
05
HS
T0
01
06
HS
T0
01
07
HS
T0
01
08
HS
T0
01
09
HS
T0
01
10
HS
T0
09
01
HS
T0
09
02
HS
T0
09
03
HS
T0
09
04
HS
T0
10
01
HS
T0
10
02
HS
T0
10
03
HS
T0
10
04
HS
T0
11
01
HS
T0
11
02
HS
T0
12
01
HS
T0
13
01
HS
T0
19
01
HS
T0
25
01
HS
T0
25
02
HS
T0
25
04
HS
T0
25
05
HS
T0
27
01
HS
T0
28
01
HS
T0
28
03
HS
T0
28
05
HS
T0
28
07
HS
T0
28
09
HS
T0
28
11
HS
T0
28
13
K-e
ff
EXPERIMENT
ROSFOND
MASLOV
Results in Keff for LMFR
LMFR with sodium coolant -0,36%.LMFR with sodium coolant -0,36%. LMFR with lead coolant + 0,25%.LMFR with lead coolant + 0,25%.
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Thank youThank you