G01T1/00	7	Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation (G01T3/00, G01T5/00 take precedence)	G01T1/00	G01T1/00		761
G01T1/003	8	{Scintillation (flow) cells}	G01T1/00	G01T1/00		122
G01T1/006	8	{Total absorption calorimeters; Shower detectors}	G01T1/00	G01T1/00		23
G01T1/02	8	Dosimeters (G01T1/15 takes precedence)	G01T1/02	G01T1/02		1684
G01T1/023	9	{Scintillation dose-rate meters}	G01T1/02	G01T1/02		288
G01T1/026	9	{Semiconductor dose-rate meters}	G01T1/02	G01T1/02		470
G01T1/04	9	Chemical dosimeters (G01T1/06, G01T1/08 take precedence)	G01T1/04	G01T1/04		284
G01T1/06	9	Glass dosimeters {using colour change; including plastic dosimeters}	G01T1/06	G01T1/06		190
G01T1/08	9	Photographic dosimeters {(photometry G01J1/52)}	G01T1/08	G01T1/08		237
G01T1/10	9	Luminescent dosimeters	G01T1/10	G01T1/10		274
G01T1/105	10	Read-out devices (G01T1/115 takes precedence)	G01T1/105	G01T1/105		113
G01T1/11	10	Thermo-luminescent dosimeters {(thermo-luminescent compositions C09K11/00)}	G01T1/11	G01T1/11		406
G01T1/115	11	Read-out devices	G01T1/115	G01T1/115		148
G01T1/12	9	Calorimetric dosimeters	G01T1/12	G01T1/12		77
G01T1/14	9	Electrostatic dosimeters (construction of ionisation chambers H01J47/02{; electrometers G01R5/28})	G01T1/14	G01T1/14		137
G01T1/142	10	Charging devices; Read-out devices	G01T1/142	G01T1/142		71
G01T1/15	8	Instruments in which pulses generated by a radiation detector are integrated, e.g. by a diode pump circuit	G01T1/15	G01T1/15		193
G01T1/16	8	Measuring radiation intensity (G01T1/29 takes precedence {; self-powered detectors G01T3/006; using an ionisation chamber filled with a liquid or solid, e.g. frozen liquid, dielectric G01T3/008})	G01T1/16	G01T1/16		1128
G01T1/1603	9	{with a combination of at least two different types of detectors}	G01T1/16	G01T1/16		439
G01T1/1606	9	{with other specified detectors not provided for in the other subgroups of G01T1/16}	G01T1/16	G01T1/16		158
G01T1/161	9	Applications in the field of nuclear medicine, e.g. in vivo counting {(apparatus for radiation diagnosis A61B6/00)}	G01T1/161	G01T1/161		1089
G01T1/1611	10	{using both transmission and emission sources sequentially (SPECT imaging G01T1/1642; PET imaging G01T1/2985; detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects G01V5/20)}	G01T1/161	G01T1/161		159
G01T1/1612	11	{with scintillation detectors (G01T1/20 takes precedence)}	G01T1/161	G01T1/161		62
G01T1/1614	11	{with semiconductor detectors (G01T1/24 takes precedence)}	G01T1/161	G01T1/161		41
G01T1/1615	10	{using both transmission and emission sources simultaneously (SPECT imaging G01T1/1642; PET imaging G01T1/2985; detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects G01V5/20)}	G01T1/161	G01T1/161		108
G01T1/1617	11	{with scintillation detectors (G01T1/20 takes precedence)}	G01T1/161	G01T1/161		25
G01T1/1618	11	{with semiconductor detectors (G01T1/24 takes precedence)}	G01T1/161	G01T1/161		13
G01T1/163	10	Whole-body counters	G01T1/163	G01T1/163		127
G01T1/1635	11	{involving relative movement between detector and subject; scanning beds (profile scanning G01T1/166; positioning patients, tiltable tables for radiation diagnosis A61B6/04)}	G01T1/163	G01T1/163		18
G01T1/164	10	Scintigraphy	G01T1/164	G01T1/164		145
G01T1/1641	11	{Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras}	G01T1/164	G01T1/164		97
G01T1/1642	12	{using a scintillation crystal and position sensing photodetector arrays, e.g. ANGER cameras}	G01T1/164	G01T1/164		787
G01T1/1644	12	{using an array of optically separate scintillation elements permitting direct location of scintillations (G01T1/1645 takes precedence)}	G01T1/164	G01T1/164		523
G01T1/1645	12	{using electron optical imaging means, e.g. image intensifier tubes, coordinate photomultiplier tubes, image converter}	G01T1/164	G01T1/164		188
G01T1/1647	12	{Processing of scintigraphic data (not related to a particular imaging system G01T1/2992)}	G01T1/164	G01T1/164		411
G01T1/1648	12	{Ancillary equipment for scintillation cameras, e.g. reference markers, devices for removing motion artifacts, calibration devices (adapted for flow studies G01T1/1647)}	G01T1/164	G01T1/164		544
G01T1/166	11	involving relative movement between detector and subject {(scanners in general without using scintigraphy G01T1/2964)}	G01T1/166	G01T1/166		191
G01T1/1663	12	{Processing methods of scan data, e.g. involving contrast enhancement, background reduction, smoothing, motion correction, dual radio-isotope scanning, computer processing (for measuring spatial distribution of radiation G01T1/2992; general purpose image data processing G06T1/00; computerized tomography G06T12/00); Ancillary equipment}	G01T1/166	G01T1/166		93
G01T1/1666	13	{adapted for printing different symbols or colours according to the intensity or energy level of the detected radioactivity (depth discrimination in colour G01T1/2985)}	G01T1/166	G01T1/166		38
G01T1/167	9	Measuring radioactive content of objects, e.g. contamination (whole body counters G01T1/163)	G01T1/167	G01T1/167		2181
G01T1/169	9	Exploration, location of contaminated surface areas	G01T1/169	G01T1/169		661
G01T1/17	9	Circuit arrangements not adapted to a particular type of detector {(pulse-selection circuits H03K, G01R)}	G01T1/17	G01T1/17		1393
G01T1/171	10	{Compensation of dead-time counting losses}	G01T1/17	G01T1/17		233
G01T1/172	10	with coincidence circuit arrangements (G01T1/178 takes precedence {; combination of detectors, see G01T1/1603, G01T1/30})	G01T1/172	G01T1/172		120
G01T1/175	10	Power supply circuits	G01T1/175	G01T1/175		152
G01T1/178	10	for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water	G01T1/178	G01T1/178		737
G01T1/18	9	with counting-tube arrangements, e.g. with Geiger counters (tubes H01J47/08; {with alarm provision G01T7/125})	G01T1/18	G01T1/18		792
G01T1/185	9	with ionisation chamber arrangements	G01T1/185	G01T1/185		895
G01T1/20	9	with scintillation detectors	G01T1/20	G01T1/20		2068
G01T1/2002	10	{Optical details, e.g. reflecting or diffusing layers}	G01T1/20	G01T1/20		1039
G01T1/2004	10	{Scintilloscopes (fluoroscopes G21K4/00; radiation diagnosis A61B6/00)}	G01T1/20	G01T1/20		58
G01T1/2006	10	{using a combination of a scintillator and photodetector which measures the means radiation intensity}	G01T1/20	G01T1/20		699
G01T1/2008	10	{using a combination of different types of scintillation detectors, e.g. phoswich}	G01T1/20	G01T1/20		276
G01T1/201	10	{using scintillating fibres}	G01T1/20	G01T1/20		274
G01T1/2012	10	{using stimulable phosphors, e.g. stimulable phosphor sheets}	G01T1/20	G01T1/20		407
G01T1/2014	11	{Reading out of stimulable sheets, e.g. latent image}	G01T1/20	G01T1/20		563
G01T1/2016	11	{Erasing of stimulable sheets, e.g. with light, heat or the like}	G01T1/20	G01T1/20		98
G01T1/2018	10	{Scintillation-photodiode combinations}	G01T1/20	G01T1/20		646
G01T1/20181	11	{Stacked detectors, e.g. for measuring energy and positional information (using a combination of different types of scintillation detectors, e.g. phoswich detectors, G01T1/2008)}	G01T1/20	G01T1/20		214
G01T1/20182	11	{Modular detectors, e.g. tiled scintillators or tiled photodiodes (stacked detectors G01T1/20181)}	G01T1/20	G01T1/20		310
G01T1/20183	11	{Arrangements for preventing or correcting crosstalk, e.g. optical or electrical arrangements for correcting crosstalk}	G01T1/20	G01T1/20		342
G01T1/20184	11	{Detector read-out circuitry, e.g. for clearing of traps, compensating for traps or compensating for direct hits}	G01T1/20	G01T1/20		536
G01T1/20185	11	{Coupling means between the photodiode and the scintillator, e.g. optical couplings using adhesives with wavelength-shifting fibres}	G01T1/20	G01T1/20		395
G01T1/20186	11	{Position of the photodiode with respect to the incoming radiation, e.g. in the front of, below or sideways the scintillator}	G01T1/20	G01T1/20		105
G01T1/20187	11	{Position of the scintillator with respect to the photodiode, e.g. photodiode surrounding the crystal, the crystal surrounding the photodiode, shape or size of the scintillator}	G01T1/20	G01T1/20		239
G01T1/20188	11	{Auxiliary details, e.g. casings or cooling}	G01T1/20	G01T1/20		288
G01T1/20189	12	{Damping or insulation against damage, e.g. caused by heat or pressure}	G01T1/20	G01T1/20		213
G01T1/2019	12	{Shielding against direct hits}	G01T1/20	G01T1/20		147
G01T1/202	10	the detector being a crystal	G01T1/202	G01T1/202		1582
G01T1/2023	11	{Selection of materials}	G01T1/202	G01T1/202		718
G01T1/2026	11	{Well-type detectors}	G01T1/202	G01T1/202		23
G01T1/203	10	the detector being made of plastics	G01T1/203	G01T1/203		420
G01T1/2033	11	{Selection of materials}	G01T1/203	G01T1/203		115
G01T1/2036	11	{Well-type detectors}	G01T1/203	G01T1/203		1
G01T1/204	10	the detector being a liquid	G01T1/204	G01T1/204		401
G01T1/2042	11	{Composition for liquid scintillation systems}	G01T1/204	G01T1/204		127
G01T1/2045	12	{Liquid scintillation quench systems}	G01T1/204	G01T1/204		53
G01T1/2047	12	{Sample preparation}	G01T1/204	G01T1/204		42
G01T1/205	10	the detector being a gas	G01T1/205	G01T1/205		39
G01T1/208	10	Circuits specially adapted for scintillation detectors, e.g. for the photo-multiplier section	G01T1/208	G01T1/208		844
G01T1/22	9	with Cerenkov detectors	G01T1/22	G01T1/22		145
G01T1/24	9	with semiconductor detectors	G01T1/24	G01T1/24		1800
G01T1/241	10	{Electrode arrangements, e.g. continuous or parallel strips or the like}	G01T1/24	G01T1/24		509
G01T1/242	10	{Stacked detectors, e.g. for depth information (constructional or manufacturing details H10W90/00)}	G01T1/24	G01T1/24		207
G01T1/243	10	{Modular detectors, e.g. arrays formed from self contained units (constructional or manufacturing details H10W90/00)}	G01T1/24	G01T1/24		287
G01T1/244	10	{Auxiliary details, e.g. casings, cooling, damping or insulation against damage by, e.g. heat, pressure or the like}	G01T1/24	G01T1/24		609
G01T1/245	10	{using memory cells}	G01T1/24	G01T1/24		47
G01T1/246	10	{utilizing latent read-out, e.g. charge stored and read-out later}	G01T1/24	G01T1/24		145
G01T1/247	10	{Detector read-out circuitry (for processing gain or off-set correction H04N)}	G01T1/24	G01T1/24		1025
G01T1/248	10	{Silicon photomultipliers [SiPM], e.g. an avalanche photodiode [APD] array on a common Si substrate}	G01T1/24	G01T1/24		323
G01T1/249	10	{specially adapted for use in SPECT or PET (SPECT imaging G01T1/1642; PET imaging G01T1/2985; detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects G01V5/20)}	G01T1/24	G01T1/24		259
G01T1/26	9	with resistance detectors	G01T1/26	G01T1/26		214
G01T1/28	9	with secondary-emission detectors	G01T1/28	G01T1/28		250
G01T1/29	8	Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation	G01T1/29	G01T1/29		1093
G01T1/2907	9	{Angle determination; Directional detectors; Telescopes (prospecting by the use of nuclear radiation, e.g. of natural or induced radioactivity G01V5/00)}	G01T1/29	G01T1/29		238
G01T1/2914	9	{Measurement of spatial distribution of radiation}	G01T1/29	G01T1/29		421
G01T1/2921	10	{Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras (using scintigraphy G01T1/1641)}	G01T1/29	G01T1/29		233
G01T1/2928	11	{using solid state detectors}	G01T1/29	G01T1/29		824
G01T1/2935	11	{using ionisation detectors}	G01T1/29	G01T1/29		314
G01T1/2942	11	{using autoradiographic methods}	G01T1/29	G01T1/29		80
G01T1/295	11	{using coded aperture devices, e.g. Fresnel zone plates (handling of radiation of particles, e.g. using diaphragms, collimators, diffraction G21K1/00)}	G01T1/29	G01T1/29		159
G01T1/2957	11	{using channel multiplier arrays (channel multipliers H01J43/18; G01T1/1645 takes precedence)}	G01T1/29	G01T1/29		41
G01T1/2964	10	{Scanners (using scintigraphy G01T1/166)}	G01T1/29	G01T1/29		131
G01T1/2971	11	{using solid state detectors}	G01T1/29	G01T1/29		23
G01T1/2978	10	{Hybrid imaging systems, e.g. using a position sensitive detector (camera) to determine the distribution in one direction and using mechanical movement of the detector or the subject in the other direction or using a camera to determine the distribution in two dimensions and using movement of the camera or the subject to increase the field of view (G01T1/2985 takes precedence)}	G01T1/29	G01T1/29		94
G01T1/2985	10	{In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis); (using external radiation sources A61B6/02)}	G01T1/29	G01T1/29		2248
G01T1/2992	10	{Radioisotope data or image processing not related to a particular imaging system; Off-line processing of pictures, e.g. rescanners (for measuring radiation intensity G01T1/1663; digital computing or data processing equipment or methods specially adapted for nuclear physics or nuclear engineering G06F15/00; general purpose image data processing G06T1/00; computerized tomography G06T12/00)}	G01T1/29	G01T1/29		118
G01T1/30	8	Measuring half-life of a radioactive substance {(period meters for nuclear fission reactors G21C17/14)}	G01T1/30	G01T1/30		52
G01T1/32	8	Measuring polarisation of particles	G01T1/32	G01T1/32		16
G01T1/34	8	Measuring cross-section, e.g. absorption cross-section of particles	G01T1/34	G01T1/34		36
G01T1/36	8	Measuring spectral distribution of X-rays or of nuclear radiation {spectrometry (pulse selection circuits per seH03K; investigation of materials by radiation diffraction G01N23/20; spectrometer tubes H01J49/00)}	G01T1/36	G01T1/36		1169
G01T1/361	9	{with a combination of detectors of different types, e.g. anti-Compton spectrometers (intensity measurement with a combination of detectors G01T1/1603)}	G01T1/36	G01T1/36		97
G01T1/362	9	{with scintillation detectors}	G01T1/36	G01T1/36		325
G01T1/363	9	{with Cerenkov detectors}	G01T1/36	G01T1/36		10
G01T1/365	9	{with ionisation detectors, e.g. proportional counter}	G01T1/36	G01T1/36		32
G01T1/366	9	{with semi-conductor detectors}	G01T1/36	G01T1/36		195
G01T1/367	9	{with resistance detectors}	G01T1/36	G01T1/36		3
G01T1/368	9	{with secondary-emission detectors}	G01T1/36	G01T1/36		10
G01T1/38	9	Particle discrimination and measurement of relative mass, e.g. by measurement of loss of energy with distance (dE/dx)	G01T1/38	G01T1/38		126
G01T1/40	9	Stabilisation of spectrometers	G01T1/40	G01T1/40		322
G01T3/00	7	Measuring neutron radiation (G01T5/00 takes precedence)	G01T3/00	G01T3/00		1265
G01T3/001	8	{Spectrometry}	G01T3/00	G01T3/00		88
G01T3/003	9	{Recoil spectrometers (light-nuclei recoil ionisation tubes per seH01J47/1277)}	G01T3/00	G01T3/00		12
G01T3/005	9	{Time-of-flight spectrometers}	G01T3/00	G01T3/00		17
G01T3/006	8	{using self-powered detectors (for neutrons as well as for Y- or X-rays), e.g. using Compton-effect (Compton diodes) or photo-emission or a (n,B) nuclear reaction (radioisotopic generators G21H1/00, e.g. G21H1/02, G21H1/04; photo-tubes H01J40/00; thermionic generators H01J45/00)}	G01T3/00	G01T3/00		167
G01T3/008	8	{using an ionisation chamber filled with a gas, liquid or solid, e.g. frozen liquid, dielectric (G01T3/006 takes precedence)}	G01T3/00	G01T3/00		180
G01T3/02	8	by shielding other radiation	G01T3/02	G01T3/02		81
G01T3/04	8	using calorimetric devices	G01T3/04	G01T3/04		65
G01T3/06	8	with scintillation detectors	G01T3/06	G01T3/06		801
G01T3/065	9	{Spectrometry}	G01T3/06	G01T3/06		46
G01T3/08	8	with semiconductor detectors	G01T3/08	G01T3/08		438
G01T3/085	9	{Spectrometry}	G01T3/08	G01T3/08		22
G01T5/00	7	Recording of movements or tracks of particles (spark chambers H01J47/00); Processing or analysis of such tracks	G01T5/00	G01T5/00		105
G01T5/002	8	{using a combination of several movement of track recording devices}	G01T5/00	G01T5/00		19
G01T5/004	8	{Non-electrical readout of multi-wire or parallel-plate chambers (non-electrical readout in such chambers per seH01J47/22)}	G01T5/00	G01T5/00		
G01T5/006	9	{by optical methods}	G01T5/00	G01T5/00		12
G01T5/008	9	{by acoustical methods}	G01T5/00	G01T5/00		
G01T5/02	8	Processing of tracks; Analysis of tracks	G01T5/02	G01T5/02		109
G01T5/04	8	Cloud chambers, e.g. Wilson chamber	G01T5/04	G01T5/04		25
G01T5/06	8	Bubble chambers	G01T5/06	G01T5/06		23
G01T5/08	8	Scintillation chambers (discharge tubes H01J40/00, H01J47/00)	G01T5/08	G01T5/08		56
G01T5/10	8	Plates or blocks in which tracks of nuclear particles are made visible by after-treatment, e.g. using photographic emulsion, using mica	G01T5/10	G01T5/10		121
G01T5/12	8	Circuit arrangements with multi-wire or parallel-plate chambers, e.g. spark chambers (tubes per seH01J47/00)	G01T5/12	G01T5/12		4
G01T5/122	9	{for readout of each individual wires; (readout in such chambers per seH01J47/16); for processing the output signals}	G01T5/12	G01T5/12		2
G01T5/125	10	{by using delay lines}	G01T5/12	G01T5/12		1
G01T5/127	11	{by using magnetostrictive delay lines}	G01T5/12	G01T5/12		
G01T7/00	7	Details of radiation-measuring instruments	G01T7/00	G01T7/00		2812
G01T7/005	8	{calibration techniques (stabilization of spectrometer G01T1/40)}	G01T7/00	G01T7/00		1450
G01T7/02	8	Collecting means for receiving or storing samples to be investigated {and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids (sampling, preparing specimens for investigation in general G01N1/00, G01N1/02; shielded cells or rooms structurally combined with manipulatin devices G21F; measuring of chromatographically separated samples G01N30/00&#160;-&#160;G01N30/96)}	G01T7/02	G01T7/02		698
G01T7/04	9	by filtration	G01T7/04	G01T7/04		288
G01T7/06	9	by electrostatic precipitation (G01T7/04 takes precedence)	G01T7/06	G01T7/06		87
G01T7/08	8	Means for conveying samples received	G01T7/08	G01T7/08		282
G01T7/10	9	using turntables	G01T7/10	G01T7/10		72
G01T7/12	8	Provision for actuation of an alarm	G01T7/12	G01T7/12		324
G01T7/125	9	{Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors (measuring radiation intensity with counting tubes G01T1/18; measuring radiation intensity with ionisation chambers G01T1/185; flame monitoring in combustion devices F23Q7/00, F23N; fire alarms actuated by presence of radiation of particles, e.g. of infrared radiation, of ions G08B17/11; discharge tubes per seH01J47/00)}	G01T7/12	G01T7/12		208
