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Specialized - Radiation Counter ·GeigerMullerCounter

1852401

18524/01 variant of the halogen-quenched Geiger-Müller counter for gamma and beta measurements of liquid samples, using sample-containing geometry for efficient radioactive-liquid activity measurements.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

18524/01 variant of the halogen-quenched radiation counter for liquid-sample gamma and beta measurements. The supplied Philips sheet was read in English from the multilingual English/French/German data, including operating voltage, plateau behavior, background count, timing, life, and construction data where published.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
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

GeigerMullerCounter

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Gas-filled radiation-counter section; counter-specific electrical characteristics are retained in TUBE_SECTION_PARAMETER.

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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

GeigerMullerCounter

Construction

  • Filling

    Neon, argon and halogen quenching agent

  • Glass wall thickness

    25 mg/cm2

  • Liquid capacity

    9-10 cm3

Capacitance

  • Interelectrode capacitance

    2.5 pF

Characteristics

  • Starting voltage minimum

    335 V

  • Starting voltage maximum

    350 V

  • Plateau length minimum

    100 V

  • Plateau slope typical

    0.06 %/V

  • Plateau slope maximum

    0.15 %/V

  • Shielded background

    12 counts/min

    2inPb;1/4inAl

  • Expected count life minimum

    50000000000 counts

Other

  • Operating voltage minimum

    400 V