公开(公告)号：US3614443A

公开(公告)日：1971-10-19

申请号：US3614443D

申请日：1968-08-16

Applicant: SMITH KLINE FRENCH LAB

Inventor： HESSELBO TORBEN ,  GROVES ARTHUR DEREK GEORGE

IPC: H01J47/10 ,  G01T1/16

CPC classification number: H01J47/10

Abstract: A gastight, crossed wire spark chamber having the major part of each of the walls thereof being formed from a transparent material and further having associated therewith manual or mechanical means for effecting movement of the chamber with respect to an externally mounted radioactive pattern in a plane substantially parallel to the planes of the electrodes disposed within the chamber.

公开(公告)号：US3461293A

公开(公告)日：1969-08-12

申请号：US3461293D

申请日：1967-12-21

Applicant: NORMAN H HORWITZ ,  LOFSTROM JAMES E

Inventor： HORWITZ NORMAN H

IPC: H01J47/10 ,  G01T1/16 ,  G01N21/38 ,  H01J39/28

CPC classification number: H01J47/10

公开(公告)号：US3418474A

公开(公告)日：1968-12-24

申请号：US50700565

申请日：1965-11-09

Applicant: BAIRD ATOMIC INC

Inventor： PHILIP SPERGEL ,  DI ROCCO JAMES V ,  GRENIER RAYMOND P

IPC: G01N30/64 ,  G01T1/29 ,  H01J47/08 ,  H01J47/10

CPC classification number: G01N30/64 ,  G01T1/2935 ,  H01J47/08 ,  H01J47/10

公开(公告)号：US3373283A

公开(公告)日：1968-03-12

申请号：US37232464

申请日：1964-06-03

Applicant: COMMISSARIAT ENERGIE ATOMIQUE

Inventor： ALAIN LANSIART ,  JEAN LELOUP ,  JEAN LEQUAIS

IPC: G01T5/00 ,  H01J47/10

CPC classification number: G01T5/00 ,  H01J47/10

公开(公告)号：US2259451A

公开(公告)日：1941-10-21

申请号：US35569640

申请日：1940-09-06

Applicant: SLAYTER ELECTRONIC CORP

Inventor： BENNETT WILLARD H

IPC: H01J19/68 ,  H01J47/10

CPC classification number: H01J19/68 ,  H01J47/10