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Assemblies

For gamma - radiation detection and spectrometry, assemblies having scintillation crystals and a photomultiplier tube (PMT) assembled in a hermetically sealed body have been developed and are now in production.

Such assemblies are produced in different designs depending on of the size of scintillators and PMT as well as on the intended application and working conditions (general-purpose, heat and vibration resistant, spectrometric, etc.)

The basic types of assemblies and scintillator dimensions are presented in the Tables.

Note:
The assemblies can be provided with PMTs of other types than specified. PMTs supplied by the customer can be used in the assembly.

We develop custom-made assemblies according to customers' specification. The assemblies can be produced in low-background version.

The assemblies can be provided with built-in voltage divider and preamplifier.

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Assemblies Detectors

Assemblies type & Nomenclature	Scintillator dimensions [mm]		Intended applications
	Diameter	Height



SBN.01	63	570	Detection of weak radiation in the energy range from 20 to 200 keV



SBD.03	63	63	Gamma - radiation detection and spectrometry in the energy range from 0.1 to 3.0 MeV



SBN.04	30	70	Well logging



SBN.05	50	150	Well logging



SBN.05	50	250	Well logging



SBN.06	100	100	Gamma - radiation spectrometry in the energy range from 50 to 5000 keV



SBN.08	150	100	Gamma - radiation spectrometry in the energy range from 50 to 5000 keV



SBN.09	40	40	Gamma - radiation detection and spectrometry in the energy range from 0.01 to 3.0 MeV



SBN.10	54	250	Well logging

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Ruggedized detectors

Assemblies type & Nomenclature	Scintillator dimensions [mm]	Service temperature range [°C]	Allowable vibration characteristics (frequency range, acceleration)


SDN.17	? 10x10 to ? 40x80	-50 to +150	1-50 Hz, 30 ms^-21-80 Hz, 50 ms^-2


SDN.52	dia. 18 to 73, height 18 to 72	-60 to +60	1-200 Hz, 50 ms^-2


SDN.11	dia. 18x160	-50 to +120	1-50 Hz, 30 ms^-2


D.115	dia. 10 to 140, height 10 to 70	-40 to +140	1-2000 Hz, 200 ms^-2


D.116	dia. 16 to 40, height 25 to 50	-40 to +140	1-2000 Hz, 200 ms^-2


VTR-24	dia. 40x40	-60 to +70	1-2000 Hz, 200 ms^-2


VTR-24-1	dia. 40x20	-60 to +70	1-2000 Hz, 200 ms^-2


SDN.18	dia. 18x160 ? 30x160	-50 to +150	1-300 Hz, 100 ms^-2


SDN.132	dia. 30x70	-50 to +225	20-5000 Hz, 500 ms^-2

The detectors and assemblies for geophysical (well logging) and special applications can be produced in ruggedized versions. These detectors operate under high temperature and mechanical load conditions.

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