5978

High-pressure ionization chamber designed for gamma-radiation detection. Unlike Geiger-Müller counters, it measures radiation through ionization current rather than avalanche pulses, making it suitable for dose-rate and intensity measurement.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: B9A
Base pins: -
Nominal heater: -

Description

The 5978 is a high-pressure ion chamber for detecting gamma radiation, using a grounded guard ring and ceramic-to-metal seals.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

IonizationChamber

X-ray radiationInterelectrode capacitances

Max plate voltage: 300 V

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

IonizationChamber

Characteristic

InterelectrodeCapacitance
6 pF
GammaSensitivity
1.3e-10 A/(R/h)
InsulatorResistanceAt25C
1000000000000000 ohm