Title:
PARTICLE DETECTION DEVICE AND PARTICLE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2005/066657
Kind Code:
A1
Abstract:
It is possible to reduce the number of signal read lines by improving configuration of the electrode of a detector. Even when the sensitive area of the detector increases, it is possible to obtain high-resolution imaging without distortion. An electrode for detecting the position of an incident particle is formed by a global position detection electrode for detecting the global position of the incident particle and a plurality of local position detection electrodes for detecting the local position of the incident particle. The position of the incident particle is identified from the global position information detected by the global position detection electrode and the local position information detected by the local position detection electrodes. The plurality of local position detection electrodes are divided into a plurality of groups and local position detection electrodes belonging to each group are connected to a common signal line. A predetermined number of local position detection electrodes correspond to one global position and the predetermined number of local position detection electrodes corresponding to one global position belong to different groups.
Inventors:
TAKAHASHI HIROYUKI (JP)
KAI MASAYOSHI (JP)
KAI MASAYOSHI (JP)
Application Number:
PCT/JP2005/000090
Publication Date:
July 21, 2005
Filing Date:
January 07, 2005
Export Citation:
Assignee:
TAKAHASHI HIROYUKI (JP)
KAI MASAYOSHI (JP)
KAI MASAYOSHI (JP)
International Classes:
G01T1/18; G01T1/29; H01J47/14; (IPC1-7): G01T1/18; H01J47/14
Domestic Patent References:
| WO2002001598A1 | 2002-01-03 |
Other References:
TAKAHASHI H. ET AL.: "Chuseisi sanran jikken no tameno micro strip gas hirei keisukan.", IONIZING RADIATION., vol. 29, no. 4, 2003, pages 179 - 187, XP002992185
KAI A. ET AL.: "Cathode denkyoku pattern o kofu shita micro strip gas hirei keisukan no kaihatsu.", THE JAPAN SOCIETY OF APPLIED PHYSICS., vol. 64, no. 1, 30 August 2003 (2003-08-30), pages 71, XP002992186
KAI A ET AL.: "1 jigen micro strip gas hirei keisukan no kaihatsu.", ATOMIC ENERGY SOCIETY OF JAPAN AKI NO TAIKAI YOKOSHU., vol. 1, no. 1, 15 September 2004 (2004-09-15), pages 23, XP002992187
KAI A. ET AL.: "Cathode denkyoku pattern o kofu shita micro strip gas hirei keisukan no kaihatsu.", THE JAPAN SOCIETY OF APPLIED PHYSICS., vol. 64, no. 1, 30 August 2003 (2003-08-30), pages 71, XP002992186
KAI A ET AL.: "1 jigen micro strip gas hirei keisukan no kaihatsu.", ATOMIC ENERGY SOCIETY OF JAPAN AKI NO TAIKAI YOKOSHU., vol. 1, no. 1, 15 September 2004 (2004-09-15), pages 23, XP002992187
Attorney, Agent or Firm:
Inaba, Shigeru (INABA & INAMI Hanabishi Imas Hirakawacho
Building 4th Floor, 3-11, Hirakawacho 2-chom, Chiyoda-ku Tokyo 93, JP)
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