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IAEA Nuclear Material Round Robin 2015

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HAL Id: hal-02445733

https://hal-cea.archives-ouvertes.fr/hal-02445733

Submitted on 20 Jan 2020

HAL is a multi-disciplinary open access

archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires

IAEA Nuclear Material Round Robin 2015

O. Vigneau, N. Arnal, C. Winkelmann

To cite this version:

O. Vigneau, N. Arnal, C. Winkelmann. IAEA Nuclear Material Round Robin 2015. Technical meeting on nuclear material - Round Robin 2015, Oct 2015, Vienne, Austria. �hal-02445733�

(2)

IAEA NUCLEAR MATERIAL ROUND

ROBIN 2015

DEN, DEC, SA3C

Laboratory of Radiochemical and Chemical Analyses

(LARC)

Olivier VIGNEAU, Nadège ARNAL,

Christophe WINKELMANN

(3)

CEA Cadarache : LARC

•

One of the tenth CEA centers,

•

Department of Nuclear Fuels :

Interest for uranium measurements

•

In our building:

No glove boxes, no hotcells

Pu limitations : 1.3 10

4

Bq

Cadarache

(4)

Sample receipt and treatment

•

Shipment

X

Not allow to receive Pu and mixed U-Pu samples

Reception of the uranium nitrate sample 9688-01 (23

th

january 2015)

• Treatment

3

B

lank

9688

-01

HCl

HNO

3

To dryness

HCl

To dryness

HNO

3

HNO

3

[U]~200 µg.L

-1

HNO

3

HNO

3

HNO

3

(5)

Magnet

Variable

multicollector

Electrostatic analyser

(ESA)

Plasma interface and

transfer optics

Torch

Sample

MC ICP/MS instrument

•

Neptune schematics

Cup configuration

(6)

Isotopic ratios measurements

•

Mass bias correction using the Sample standard bracketing (SSB) method

•

Materials : SRM U-050 used to correct instrumental bias

SRM U-010 used to control the mass bias correction applied

(7)

•

Mean of the 3 measurements and associated uncertainties (given with a

coverage factor equal to 2)

•

Comparison with NBS U-015 uranium isotopic standard

Results and comparison to NBS U-015

Material

234

U/

238

U

235

U/

238

U

236

U/

238

U

NBS U-015

Value

0.0000863

0.0155654

0.0001666

Uncertaincy (k=2)

0.0000009

0.0000152

0.0000010

9688-01-042

Value

0.0000858

0.0155624

0.0001673

Uncertaincy (k=2)

0.0000015

0.0000160

0.0000010

(8)

Acknowledgments

•

Nadège and Christophe for the analyses

Références

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