JPS55142264A - Alpha-ray detector - Google Patents

Alpha-ray detector

Info

Publication number
JPS55142264A
JPS55142264A JP5029779A JP5029779A JPS55142264A JP S55142264 A JPS55142264 A JP S55142264A JP 5029779 A JP5029779 A JP 5029779A JP 5029779 A JP5029779 A JP 5029779A JP S55142264 A JPS55142264 A JP S55142264A
Authority
JP
Japan
Prior art keywords
alpha
ray
ray image
dimensionally
measured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5029779A
Other languages
Japanese (ja)
Inventor
Hiroshi Kawamoto
Kunihiko Ikuzaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5029779A priority Critical patent/JPS55142264A/en
Publication of JPS55142264A publication Critical patent/JPS55142264A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Radiation (AREA)

Abstract

PURPOSE:To form a detector suitable for measuring the horizontal distributive position of the alpha-ray source by combining an alpha-ray image sensor and a device for visual depicting of the alpha-ray image in which a plurality of alpha-ray detecting elements are arranged two-dimensionally. CONSTITUTION:Each alpha-ray detecting element of the alpha-ray image sensor 11 composed of a plurality of alpha-ray detecting elements arranged two-dimensionally (in a matrix state or the like) over the entire semiconductor substrate is driven by a sensor driving circuit 12 to detect the alpha-ray image signal from the material 10 to be measured so that the alpha-ray image is visually depicted on a display device (Braun tube or the like) 13 by the signal. The detector thus obtained can depict images a, b and c crresponding to the alpha-ray sources A, B and C of U, Th and the like contained in the material to be measured, thereby allowing the reading of the distributive position of the alpha-ray source at a glance.
JP5029779A 1979-04-25 1979-04-25 Alpha-ray detector Pending JPS55142264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5029779A JPS55142264A (en) 1979-04-25 1979-04-25 Alpha-ray detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5029779A JPS55142264A (en) 1979-04-25 1979-04-25 Alpha-ray detector

Publications (1)

Publication Number Publication Date
JPS55142264A true JPS55142264A (en) 1980-11-06

Family

ID=12854955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5029779A Pending JPS55142264A (en) 1979-04-25 1979-04-25 Alpha-ray detector

Country Status (1)

Country Link
JP (1) JPS55142264A (en)

Similar Documents

Publication Publication Date Title
JPS55142264A (en) Alpha-ray detector
JPS559146A (en) Tablet testing device
JPS5315160A (en) Sensitivity controller of self-scan image sensor in thermal radiating object measuring apparatus
JPS55159539A (en) Source position meter for exposure base
JPS56104212A (en) Angle measuring device
JPS5310487A (en) Location of ultrasonic probe and device therefor
JPS5211953A (en) Optical system measuring device
JPS5272270A (en) Apparatus for continuous observation of moving objects
JPS5624508A (en) Device for measuring picture area from offset printing plate
JPS5433086A (en) Defect area rate measuring apparatus
JPS53118067A (en) Two dimensional quantity measuring apparatus
JPS5472078A (en) Measuring apparatus of subject dimensions
JPS541624A (en) Distortion detector of recording images
JPS55129706A (en) Display unit for cross section of rod material
JPS5333193A (en) Measuring apparatus of transformed quantity at diffusion welding
JPS52123646A (en) Scanning type length measuring apparatus
JPS56114713A (en) Automatic sensitivity setting system in measuring device
JPS54123969A (en) Rotary type sectional shape measuring apparatus
BLANSJAAR A computer controlled precision comparator-densitometer(Computer controlled machine for measuring densities of photographic plates and film)
JPS5498260A (en) Position indicator
JPS55103605A (en) Stop position control system of moving object
JPS5730850A (en) Image forming device
JPS55103417A (en) Measuring device for dial gauge indication accuracy
JPS51132079A (en) Measuring device of television tube
JPS55122107A (en) System for measuring dimension of photographic object

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040511

A131 Notification of reasons for refusal

Effective date: 20071211

Free format text: JAPANESE INTERMEDIATE CODE: A131

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080311

A521 Written amendment

Effective date: 20080328

Free format text: JAPANESE INTERMEDIATE CODE: A523

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080428

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20081014