|  | G |
SECTION G — PHYSICS

INSTRUMENTS

|  | G01 |
MEASURING (counting Fulltext... Hierarchy... Expanded...G06M); TESTING

|  | G01T |
MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry Fulltext... Hierarchy... Expanded...G01N; counters per se Fulltext... Hierarchy... Expanded...G06M, Fulltext... Hierarchy... Expanded...H03K; electric discharge tubes for analysing radiation or particles Fulltext... Hierarchy... Expanded...H01J 40/00, Fulltext... Hierarchy... Expanded...H01J 47/00, Fulltext... Hierarchy... Expanded...H01J 49/00)

|  | G01T |
Note(s) Attention is drawn to the notes immediately following the class title (Fulltext... Hierarchy... Expanded...G01). This sub-class deals with the measurement of X-radiation, gamma radiation, corpuscular radiation, cosmic radiation, or neutron radiation.

|  | G01T 1/00 |
Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation (Fulltext... Hierarchy... Expanded...G01T 3/00, Fulltext... Hierarchy... Expanded...G01T 5/00 take precedence) [2]

|  | G01T 1/02 |
· | Dosimeters (Fulltext... Hierarchy... Expanded...G01T 1/15 takes precedence; measuring exposure time to X-rays Fulltext... Hierarchy... Expanded...H05G 1/28) [2]

|  | G01T 1/04 |
· · | Chemical dosimeters (Fulltext... Hierarchy... Expanded...G01T 1/06, Fulltext... Hierarchy... Expanded...G01T 1/08 take precedence)

|  | G01T 1/06 |
· · | Glass dosimeters

|  | G01T 1/08 |
· · | Photographic dosimeters (sensitive materials, processing thereof Fulltext... Hierarchy... Expanded...G03C)

|  | G01T 1/10 |
· · | Luminescent dosimeters

|  | G01T 1/105 |
· · · | Read-out devices (Fulltext... Hierarchy... Expanded...G01T 1/115 takes precedence) [2]

|  | G01T 1/11 |
· · · | Thermo-luminescent dosimeters

|  | G01T 1/115 |
· · · · | Read-out devices [2]

|  | G01T 1/12 |
· · | Calorimetric dosimeters

|  | G01T 1/14 |
· · | Electrostatic dosimeters (construction of ionisation chambers Fulltext... Hierarchy... Expanded...H01J 47/02)

|  | G01T 1/142 |
· · · | Charging devices; Read-out devices [2]

|  | G01T 1/15 |
· | Instruments in which pulses generated by a radiation detector are integrated, e.g. by a diode pump circuit (pulse rate meters in general Fulltext... Hierarchy... Expanded...G01R 23/02)

|  | G01T 1/16 |
· | Measuring radiation intensity (Fulltext... Hierarchy... Expanded...G01T 1/29 takes precedence) [2]

|  | G01T 1/161 |
· · | Applications in the field of nuclear medicine, e.g. in vivo counting [2]

|  | G01T 1/163 |
· · · | Whole-body counters [2]

|  | G01T 1/164 |
· · · | Scintigraphy (radio isotopes Fulltext... Hierarchy... Expanded...G21G 4/00; tracers Fulltext... Hierarchy... Expanded...G21H 5/00) [2]

|  | G01T 1/166 |
· · · · | involving relative movement between detector and subject [2]

|  | G01T 1/167 |
· · | Measuring radioactive content of objects, e.g. contamination (whole-body counters Fulltext... Hierarchy... Expanded...G01T 1/163) [2]

|  | G01T 1/169 |
· · | Exploration, location of contaminated surface areas (prospecting by the use of nuclear radiation, natural or induced Fulltext... Hierarchy... Expanded...G01V 5/00) [2]

|  | G01T 1/17 |
· · | Circuit arrangements not adapted to a particular type of detector

|  | G01T 1/172 |
· · · | with coincidence circuit arrangements (Fulltext... Hierarchy... Expanded...G01T 1/178 takes precedence) [2]

|  | G01T 1/175 |
· · · | Power supply circuits (power supply circuits per se Fulltext... Hierarchy... Expanded...H02J; converters Fulltext... Hierarchy... Expanded...H02M) [2]

|  | G01T 1/178 |
· · · | for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain-water [2]

|  | G01T 1/18 |
· · | with counting-tube arrangements, e.g. with Geiger counters (tubes Fulltext... Hierarchy... Expanded...H01J 47/00)

|  | G01T 1/185 |
· · | with ionisation-chamber arrangements (construction of ionisation chambers Fulltext... Hierarchy... Expanded...H01J 47/02) [2]

|  | G01T 1/20 |
· · | with scintillation detectors

|  | G01T 1/202 |
· · · | the detector being a crystal

|  | G01T 1/203 |
· · · | the detector being made of plastics

|  | G01T 1/204 |
· · · | the detector being a liquid

|  | G01T 1/205 |
· · · | the detector being a gas

|  | G01T 1/208 |
· · · | Circuits specially adapted for scintillation detectors, e.g. for the photo-multiplier section [2]

|  | G01T 1/22 |
· · | with Cerenkov detectors

|  | G01T 1/24 |
· · | with semiconductor detectors (semiconductor detectors per se Fulltext... Hierarchy... Expanded...H01L 31/00)

|  | G01T 1/26 |
· · | with resistance detectors

|  | G01T 1/28 |
· · | with secondary-emission detectors (secondary-electron-emitting electrodes in general Fulltext... Hierarchy... Expanded...H01J 1/32)

|  | G01T 1/29 |
· | Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation (scintigraphy Fulltext... Hierarchy... Expanded...G01T 1/164; mass-spectrometers Fulltext... Hierarchy... Expanded...H01J 49/00) [2]

|  | G01T 1/30 |
· | Measuring half-life of a radioactive substance

|  | G01T 1/32 |
· | Measuring polarisation of particles

|  | G01T 1/34 |
· | Measuring cross-section, e.g. absorption cross-section of particles

|  | G01T 1/36 |
· | Measuring spectral distribution of X-rays or of nuclear radiation

|  | G01T 1/38 |
· · | Particle discrimination and measurement of relative mass, e.g. by measurement of loss of energy with distance (dE/dx) [2]

|  | G01T 1/40 |
· · | Stabilisation of spectrometers [2]

|  | G01T 3/00 |
Measuring neutron radiation (Fulltext... Hierarchy... Expanded...G01T 5/00 takes precedence) [2]

|  | G01T 3/02 |
· | by shielding other radiation

|  | G01T 3/04 |
· | using calorimetric devices

|  | G01T 3/06 |
· | with scintillation detectors [2]

|  | G01T 3/08 |
· | with semiconductor detectors (semiconductor detectors per se Fulltext... Hierarchy... Expanded...H01L 31/00) [2]

|  | G01T 5/00 |
Recording of movements or tracks of particles (spark chambers Fulltext... Hierarchy... Expanded...H01J 47/00); Processing or analysis of such tracks [2]

|  | G01T 5/02 |
· | Processing of tracks; Analysis of tracks

|  | G01T 5/04 |
· | Cloud chambers, e.g. Wilson chamber

|  | G01T 5/06 |
· | Bubble chambers

|  | G01T 5/08 |
· | Scintillation chambers (discharge tubes Fulltext... Hierarchy... Expanded...H01J 40/00, Fulltext... Hierarchy... Expanded...H01J 47/00; semiconductor devices Fulltext... Hierarchy... Expanded...H01L)

|  | G01T 5/10 |
· | Plates or blocks in which tracks of nuclear particles are made visible by after-treatment, e.g. using photographic emulsion, using mica

|  | G01T 5/12 |
· | Circuit arrangements with multi-wire or parallel-plate chambers, e.g. spark chambers (tubes per se Fulltext... Hierarchy... Expanded...H01J 47/00) [2]

|  | G01T 7/00 |
Details of radiation-measuring instruments

|  | G01T 7/02 |
· | Collecting-means for receiving or storing samples to be investigated

|  | G01T 7/04 |
· · | by filtration

|  | G01T 7/06 |
· · | by electrostatic precipitation (Fulltext... Hierarchy... Expanded...G01T 7/04 takes precedence)

|  | G01T 7/08 |
· | Means for conveying samples received

|  | G01T 7/10 |
· · | using turntables

|  | G01T 7/12 |
· | Provision for actuation of an alarm