GB1286895A - Radiation-detecting device - Google Patents
Radiation-detecting deviceInfo
- Publication number
- GB1286895A GB1286895A GB49876/70A GB4987670A GB1286895A GB 1286895 A GB1286895 A GB 1286895A GB 49876/70 A GB49876/70 A GB 49876/70A GB 4987670 A GB4987670 A GB 4987670A GB 1286895 A GB1286895 A GB 1286895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spark
- chamber
- oct
- anode
- dead time
- 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
- 238000000576 coating method Methods 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 abstract 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract 1
- 229910001887 tin oxide Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
- H01J47/10—Spark counters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4258—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector for detecting non x-ray radiation, e.g. gamma radiation
Landscapes
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Electron Tubes For Measurement (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
1286895 Recording tracks of particles COMMISSARIAT A L'ENERGIE ATOMIQUE 21 Oct 1970 [30 Oct 1969] 49876/70 Heading G6P In a spark chamber, for determining the image of radio-active sources, as described in the Specification 1,133,682, the dead time of the chamber is reduced by the provision of two electrically conductive coatings on opposite faces of the anode. The spark chamber, 1, has a short-circuiting device, 8, connected across the grid-anodes multiplication spaces but in addition, the anode, 5, consists of a glass plate provided with two coatings, 10, 11 of tin oxide. Coating 11, which is of higher conductivity than, and is electrically connected to, 10, responds rapidly to voltage falls at 8 and by a capacitive effect, reduces the voltage of 10 to quench the spark with a reduced dead time.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR696937300A FR2111992B1 (en) | 1969-10-30 | 1969-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1286895A true GB1286895A (en) | 1972-08-23 |
Family
ID=9042333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49876/70A Expired GB1286895A (en) | 1969-10-30 | 1970-10-21 | Radiation-detecting device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3717766A (en) |
| JP (1) | JPS5012757B1 (en) |
| BE (1) | BE757683R (en) |
| DE (1) | DE2053485A1 (en) |
| FR (1) | FR2111992B1 (en) |
| GB (1) | GB1286895A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6013475B2 (en) * | 1979-06-26 | 1985-04-08 | 名古屋大学長 | Method for highly stable operation of composite spark chamber |
| US4642465A (en) * | 1982-04-21 | 1987-02-10 | California Institute Of Technology | Avalanche counter and encoder system for counting and mapping radioactive specimens |
| US4622467A (en) * | 1982-04-21 | 1986-11-11 | California Institute Of Technology | System for mapping radioactive specimens |
| US4500786A (en) * | 1982-04-21 | 1985-02-19 | California Institute Of Technology | Large area spark chamber and support, and method of recording and analyzing the information on a radioactive work piece |
| FR2646519B1 (en) * | 1989-04-27 | 1991-08-23 | Charpak Georges | METHOD AND DEVICE FOR DETERMINING THE DISTRIBUTION OF RADIATION (BETA) EMERGING FROM A SURFACE |
-
0
- BE BE757683D patent/BE757683R/en active
-
1969
- 1969-10-30 FR FR696937300A patent/FR2111992B1/fr not_active Expired
-
1970
- 1970-10-21 GB GB49876/70A patent/GB1286895A/en not_active Expired
- 1970-10-22 US US00083060A patent/US3717766A/en not_active Expired - Lifetime
- 1970-10-30 DE DE19702053485 patent/DE2053485A1/en active Pending
- 1970-10-30 JP JP45095819A patent/JPS5012757B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3717766A (en) | 1973-02-20 |
| JPS5012757B1 (en) | 1975-05-14 |
| BE757683R (en) | 1971-04-01 |
| DE2053485A1 (en) | 1971-05-13 |
| FR2111992B1 (en) | 1973-05-25 |
| FR2111992A1 (en) | 1972-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |