Irradiation of vibrated plutonium rods in DIORIT

H. Schumacher; Ludovicus Aerts; H. Bairiot; K. Bischoff; J. Peter; H.  Rupar

Irradiation of vibrated plutonium rods in DIORIT

H. Schumacher, Ludovicus Aerts, H. Bairiot, K. Bischoff, J. Peter, H. Rupar

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Abstract

Four vibrated fuel rods, 1 % Pu-enriched, have been irradiated in the
DIORIT research reactor at Würenlingen, Switzerland. The fuel achieved
maximum burn-ups between 3,000 and 10,000 MWd/t. U + Pu. Postirradiation
examinations have been performed in the hot cells at Würenlingen.
Two fuel fabrication techniques for the preparation of the fine fraction have
been selected (only this fraction contained plutonium) ;
- blended fuel, i. e. mechanically mixed Pu0₂- and UO₂ - fine powder fraction;
- solid solution fuel, i. e. co - precipitated (Pu_0.067, U_0.933) O₂ fine powder fraction
The postirradiation examinations gave the following results :
- all four vibrated fuel rods behave quite satisfactorily ;
- at 790 w/cm maximum heat rating the centre temperature reached about
2,000°C;
- the blended fuel showed a somewhat higher fission gas release than the solid
solution fuel ;
- the solid solution fuel developed a central hole, possibly resulting from the
alumina content.

Original language	English
Publisher	SCK CEN
Number of pages	59
State	Published - Aug 1972
Externally published	Yes

Publication series

Name	SCK CEN Reports
Publisher	SCK CEN
No.	BLG-469

Access to Document

BLG-469Final published version, 22.4 MBLicense: Unspecified

Cite this

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title = "Irradiation of vibrated plutonium rods in DIORIT",

abstract = "Four vibrated fuel rods, 1 % Pu-enriched, have been irradiated in theDIORIT research reactor at W{\"u}renlingen, Switzerland. The fuel achievedmaximum burn-ups between 3,000 and 10,000 MWd/t. U + Pu. Postirradiationexaminations have been performed in the hot cells at W{\"u}renlingen.Two fuel fabrication techniques for the preparation of the fine fraction havebeen selected (only this fraction contained plutonium) ;- blended fuel, i. e. mechanically mixed Pu02 - and UO2 - fine powder fraction;- solid solution fuel, i. e. co - precipitated (Pu0.067, U0.933) O2 fine powder fractionThe postirradiation examinations gave the following results :- all four vibrated fuel rods behave quite satisfactorily ;- at 790 w/cm maximum heat rating the centre temperature reached about2,000°C;- the blended fuel showed a somewhat higher fission gas release than the solidsolution fuel ;- the solid solution fuel developed a central hole, possibly resulting from thealumina content.",

author = "H. Schumacher and Ludovicus Aerts and H. Bairiot and K. Bischoff and J. Peter and H. Rupar",

year = "1972",

month = aug,

language = "English",

series = "SCK CEN Reports",

publisher = "SCK CEN",

number = "BLG-469",

address = "Belgium",

}

TY - BOOK

T1 - Irradiation of vibrated plutonium rods in DIORIT

AU - Schumacher, H.

AU - Aerts, Ludovicus

AU - Bairiot, H.

AU - Bischoff, K.

AU - Peter, J.

AU - Rupar, H.

PY - 1972/8

Y1 - 1972/8

N2 - Four vibrated fuel rods, 1 % Pu-enriched, have been irradiated in theDIORIT research reactor at Würenlingen, Switzerland. The fuel achievedmaximum burn-ups between 3,000 and 10,000 MWd/t. U + Pu. Postirradiationexaminations have been performed in the hot cells at Würenlingen.Two fuel fabrication techniques for the preparation of the fine fraction havebeen selected (only this fraction contained plutonium) ;- blended fuel, i. e. mechanically mixed Pu02 - and UO2 - fine powder fraction;- solid solution fuel, i. e. co - precipitated (Pu0.067, U0.933) O2 fine powder fractionThe postirradiation examinations gave the following results :- all four vibrated fuel rods behave quite satisfactorily ;- at 790 w/cm maximum heat rating the centre temperature reached about2,000°C;- the blended fuel showed a somewhat higher fission gas release than the solidsolution fuel ;- the solid solution fuel developed a central hole, possibly resulting from thealumina content.

AB - Four vibrated fuel rods, 1 % Pu-enriched, have been irradiated in theDIORIT research reactor at Würenlingen, Switzerland. The fuel achievedmaximum burn-ups between 3,000 and 10,000 MWd/t. U + Pu. Postirradiationexaminations have been performed in the hot cells at Würenlingen.Two fuel fabrication techniques for the preparation of the fine fraction havebeen selected (only this fraction contained plutonium) ;- blended fuel, i. e. mechanically mixed Pu02 - and UO2 - fine powder fraction;- solid solution fuel, i. e. co - precipitated (Pu0.067, U0.933) O2 fine powder fractionThe postirradiation examinations gave the following results :- all four vibrated fuel rods behave quite satisfactorily ;- at 790 w/cm maximum heat rating the centre temperature reached about2,000°C;- the blended fuel showed a somewhat higher fission gas release than the solidsolution fuel ;- the solid solution fuel developed a central hole, possibly resulting from thealumina content.

UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/39210654

M3 - BLG - Open report

T3 - SCK CEN Reports

BT - Irradiation of vibrated plutonium rods in DIORIT

PB - SCK CEN

ER -