SOME PROBLEMS OF MEASUREMENTS WITH PHOTOMULTIPLIERS

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Acta IMEKO (Intern. Messtech. Konf.), Budapest

OSTI ID:4152180

Goerlich, P

The application of secondary electron multipliers can be divided into two groups: photometric and scintillationcounting measurements. Theoretical considerations of the fundamental properties of secondary electron multipliers and practical constructions are discussed. The relation between the signal-noise ratio and energetic as well as time resolution is explained. The demands of scintillation techniques and photometry influence each other or are identical. The considerations are proved by experiments made with M 12 FS type multipliers; the inter dinode voltage has the expected influence on the signal-to-noise ratio and resolution. The relation between the signal-to-noise ratio and signal amplitude as well as the relative amplitude fluctuation and pulse-amplitude is discussed. Problems of short-time measurements are discussed in connection with signal-to-noise ratio. Measurements made with the recently developed K 12 FS 50 multiplier are described. The local sensitivity distribution of the photocathode, its measurement and its importance for the usage is dealt with. Measurement data show that in the case of the venetianblind multiplier the focusing conditions must not be neglected. The higher noise and higher supply- voltage of the venetian-blind multipliers compared with that of the focused type of multipliers is theoretically and experimentally explained. Data gained with venetian-blind types and focused multipliers, M 12 FS 35 and M 12 FS 150, are compared. Ranges of phototubes and multipliers are demonstrated, as well as their fields of application and directions for running them. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-002038
• OSTI ID: 4152180
• Journal Information: Acta IMEKO (Intern. Messtech. Konf.), Budapest, Journal Name: Acta IMEKO (Intern. Messtech. Konf.), Budapest Vol. Vol: j
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

AMALGAMS
AMIDES
ANODES
BEAMS
BUBBLES
CARBONATES
CATHODES
CHEMICAL REACTIONS
CONFIGURATION
COPPER ALLOYS
CURRENTS
DIAGRAMS
DIFFUSION
DISTRIBUTION
EFFICIENCY
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
ELECTRODES
ELECTROLYSIS
ELECTROLYTIC CELLS
ENERGY
FABRICATION
HIGH TEMPERATURE
INSTRUMENTATION
ION EXCHANGE MATERIALS
LEACHING
MEASURED VALUES
MEMBRANES
MERCURY ALLOYS
MIXING
NOISE
NYLON
ORE PROCESSING
OXIDATION
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOMETRY
PHOTOMULTIPLIERS
POLYMERS
POROSITY
PRECIPITATION
QUANTITY RATIO
REDUCTION
RESOLUTION
SCINTILLATION COUNTERS
SENSITIVITY
SIGNALS
SOLUTIONS
TESTING
TURBULENCE
URANIUM CARBO