ASTM-E520 Standard Practice for Describing Photomultiplier Detectors in Emission and Absorption Spectrometry

ASTM-E520 - 2008 R23(E1) EDITION - CURRENT
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Standard Practice for Describing Photomultiplier Detectors in Emission and Absorption Spectrometry
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1.1 Radiation in the frequency range common to analytical emission and absorption spectrometry is detected by photomultipliers presently to the exclusion of most other transducers. Detection limits, analytical sensitivity, and accuracy depend on the characteristics of these current-amplifying detectors as well as other factors in the system.

1.2 This practice surveys photomultiplier properties that are essential to their judicious selection and use of photo- multipliers in emission and absorption spectrometry. Descriptions of these properties can be found in the following sections:

Section Structural Features 2 General 2.1 External Structure 2.2 Internal Structure 2.3 Electrical Properties 3 General 3.1 Optical-Electronic Characteristics of the Photocathode 3.2 Current Amplification 3.3 Signal Nature 3.4 Dark Current 3.5 Noise Nature 3.6 Photomultiplier as a Component in an Electrical Circuit 3.7 Precautions and Problems 4 General 4 Fatigue and Hysteresis Effects 4.2 Illumination of Photocathode 4.3 Gas Leakage 4.4 Recommendations on Important Selection Criteria 5

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

absorption; detectors; emission; photomultiplier; spectrometry

To find similar documents by ASTM Volume:

03.05 (Analytical Chemistry for Metals, Ores, and Related Materials: E 32 - latest)

To find similar documents by classification:

17.180.30 (Optical measuring instruments Including spectroscopes, geodetic instruments, etc. Ophthalmic optics and instruments, see 11.040.70 Laser equipment, see 31.260 Fibre optics, see 33.180 Optical equipment, materials and components, see 37.020 Photographic equipment lenses, see 37.040.10)

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Document Number

ASTM-E0520-08R23E01

Revision Level

2008 R23(E1) EDITION

Status

Current

Modification Type

Revision

Publication Date

March 6, 2024

Document Type

Practice

Page Count

6 pages

Committee Number

E01.20