公开(公告)号：FR2749968B1

公开(公告)日：2000-05-26

申请号：FR9607430

申请日：1996-06-14

Applicant: FRAMATOME SA

Inventor： HERTZ DOMINIQUE ,  ROMARY JEAN MICHEL

IPC: G21C3/07 ,  G21C7/10 ,  G21C7/117 ,  G21C7/24 ,  G21C7/06 ,  G21C21/18

Abstract: An absorbent pencil of which at least the lower portion contains a neutron absorber consisting of a hafnium metal compound coated with a wear protection layer of oxide or chromium having a thickness of at least 5 mu m.

公开(公告)号：FR2728718A1

公开(公告)日：1996-06-28

申请号：FR9415593

申请日：1994-12-23

Applicant: FRAMATOME SA

Inventor： ROMARY JEAN MICHEL ,  BONNIAUD MICHEL

IPC: G21C3/326 ,  G21C5/02 ,  G21C3/328 ,  G21C5/12

Abstract: A fuel assembly, intended to a pressurized water reactor, comprises fuel rods at the nodes of a square network containing fuel material. Some of said fuel rods have a first mass content of gadolinium comprised between 5 and 12 %. From four to twelve additionnal rods (16) have a gadolinium content comprised between 0.5 and 2 %.

公开(公告)号：FR2749968A1

公开(公告)日：1997-12-19

申请号：FR9607430

申请日：1996-06-14

Applicant: FRAMATOME SA

Inventor： HERTZ DOMINIQUE ,  ROMARY JEAN MICHEL

IPC: G21C3/07 ,  G21C7/10 ,  G21C7/117 ,  G21C7/24 ,  G21C7/06 ,  G21C21/18

Abstract: An absorbent pencil of which at least the lower portion contains a neutron absorber consisting of a hafnium metal compound coated with a wear protection layer of oxide or chromium having a thickness of at least 5 mu m.