GB1500547A - Methods of detecting and/or measuring the hydrogen content of materials - Google Patents
Methods of detecting and/or measuring the hydrogen content of materialsInfo
- Publication number
- GB1500547A GB1500547A GB21313/75A GB2131375A GB1500547A GB 1500547 A GB1500547 A GB 1500547A GB 21313/75 A GB21313/75 A GB 21313/75A GB 2131375 A GB2131375 A GB 2131375A GB 1500547 A GB1500547 A GB 1500547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foil
- hydrogen content
- detecting
- metal
- photo
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/07—Investigating materials by wave or particle radiation secondary emission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/07—Investigating materials by wave or particle radiation secondary emission
- G01N2223/073—Investigating materials by wave or particle radiation secondary emission use of a laser
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/316—Accessories, mechanical or electrical features collimators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/50—Detectors
- G01N2223/505—Detectors scintillation
- G01N2223/5055—Detectors scintillation scintillation crystal coupled to PMT
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/50—Detectors
- G01N2223/507—Detectors secondary-emission detector
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1500547 Detecting the hydrogen content of metal DEFENCE SECRETARY OF STATE FOR 12 May 1976 [19 May 1975] 21313/75 Heading G 1 A [ Also in Division H 1] In a method of detecting the hydrogen content of a piece of metal 1 pulse laser radiation 4 is directed on to the metal. This results in "pulses" of plasma containing hydrogen ions plus ions of any other substances present in the material. The plasma pulses expand and some of it passes through two apertures 7 and 8 to impinge upon a thin foil 9. The foil is within a doughnut shaped support member 10 which is maintained at a negative potential (-25KV). The foil 9 and the negative potential are such that only hydrogen ions striking the foil can penetrate it sufficiently to liberate secondary electrons from the back of the foil. The liberated secondary electrons are detected by the combination of a photo-multiplier tube 13 positioned behind a window 11 having a scintillator layer 12. The whole or a portion of each pulse from the photo-multiplier may be integrated to provide an output whose amplitude is a measure of the hydrogen content.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21313/75A GB1500547A (en) | 1976-05-12 | 1976-05-12 | Methods of detecting and/or measuring the hydrogen content of materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21313/75A GB1500547A (en) | 1976-05-12 | 1976-05-12 | Methods of detecting and/or measuring the hydrogen content of materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1500547A true GB1500547A (en) | 1978-02-08 |
Family
ID=10160766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21313/75A Expired GB1500547A (en) | 1976-05-12 | 1976-05-12 | Methods of detecting and/or measuring the hydrogen content of materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1500547A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2425063A1 (en) * | 1978-05-05 | 1979-11-30 | Leybold Heraeus Gmbh & Co Kg | METHOD AND DEVICE FOR THE ANALYSIS OF A SAMPLE USING A PULSE LASER BEAM |
WO2004029601A1 (en) * | 2002-09-30 | 2004-04-08 | Avdeichikov Vladimir Vladimiro | Labelled neutron generator |
-
1976
- 1976-05-12 GB GB21313/75A patent/GB1500547A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2425063A1 (en) * | 1978-05-05 | 1979-11-30 | Leybold Heraeus Gmbh & Co Kg | METHOD AND DEVICE FOR THE ANALYSIS OF A SAMPLE USING A PULSE LASER BEAM |
WO2004029601A1 (en) * | 2002-09-30 | 2004-04-08 | Avdeichikov Vladimir Vladimiro | Labelled neutron generator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |