Skip to Main content Skip to Navigation
Conference papers

Diamond for actinide traces detection and spectrometry in liquids

Michal Pomorski 1 Christine Mer-Calfati 1 Jacques de Sanoit 1 Thuan Quang Tran 1 P. Bergonzo 1 
1 LCD-LIST - Laboratoire Capteurs Diamant
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : We describe here a new approach for the detection and identification of actinides (Am, Pu, Cm etc) at very low activity levels in aqueous solution. The measurement consists at first in the electroprecipitation of the actinides ions as insoluble hydroxides directly onto a boron doped nanocrystalline diamond (BNCD) electrode deposited on an $\alpha$-particle detector (Si or Si-PIN diode), followed by $\alpha$-particles detection using front-end nuclear electronics. After $\alpha$-particles counting by spectrometry, the detector can be easily decontaminated using anodization in aqueous solution to be able to be reused at once. The detection limit of the described prototype system can be estimated as low as a few mBq/L (for one day counting) to several mBq/L for 5h counting and currently achieved energy resolution amounts to $\Delta E_{FWHM}$/$E_\alpha$ = 2.3% for pulse height spectra of 5.486 MeV α-particles emitted by $^{241}$Am, measured directly in water.
Complete list of metadata

https://hal-cea.archives-ouvertes.fr/cea-01822342
Contributor : Léna Le Roy Connect in order to contact the contributor
Submitted on : Thursday, February 3, 2022 - 12:55:57 AM
Last modification on : Thursday, February 17, 2022 - 10:08:06 AM
Long-term archiving on: : Wednesday, May 4, 2022 - 6:06:05 PM

File

Article_MichalPomorski_Diamond...
Files produced by the author(s)

Identifiers

Collections

CEA | DRT | LIST | DM2I | ANR

Citation

Michal Pomorski, Christine Mer-Calfati, Jacques de Sanoit, Thuan Quang Tran, P. Bergonzo. Diamond for actinide traces detection and spectrometry in liquids. ANIMMA 2013 - 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications, Jun 2013, Marseille, France. pp.6727986, ⟨10.1109/ANIMMA.2013.6727986⟩. ⟨cea-01822342⟩

Share

Metrics

Record views

46

Files downloads

6