Title:
時間分解測定装置および位置検出型電子増倍管
Document Type and Number:
Japanese Patent JP4268463
Kind Code:
B2
Abstract:
A time-resolved measurement apparatus (100) reads a detection timing pulse from an MCP (24) in a front-side MCP stack (30) in a photomultiplier tube (14). A detection timing of a photon is determined based on this pulse. A principal component of this pulse is a potential rise pulse in response to the emission of photoelectrons from the MCP (24), and it has the positive polarity. On the other hand, when photoelectrons are incident on the front-side stack (30), a pulse of the negative polarity is generated to deform the waveform of the detection timing pulse. However, since the number of the photoelectrons incident on the front-side stack (30) is fewer than that of those incident on a rear-side stack (32), the negative component is small in the detection timing pulse. This results in enhancing the time precision of the time-resolved measurement.
Inventors:
Nobuyuki Hirai
Mitsutetsu Nishizawa
Mitsutetsu Nishizawa
Application Number:
JP2003181546A
Publication Date:
May 27, 2009
Filing Date:
June 25, 2003
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
G01N21/62; G01N23/225; G01N21/66; G01N27/62; H01J37/244; H01J43/24; H01J49/06; H01L21/66
Domestic Patent References:
| JP2000304697A | ||||
| JP11132953A | ||||
| JP8292090A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Satoru Ishida
Ikeda adult
Shiro Terasaki
Satoru Ishida
Ikeda adult
Previous Patent: 高温強度に優れた非調質低降伏比高張力鋼板の製造方法
Next Patent: FAULT POINT DETECTOR FOR POWER TRANSMISSION LINE
Next Patent: FAULT POINT DETECTOR FOR POWER TRANSMISSION LINE