Results 321 to 330 of about 679,715 (383)

Methods of calculating the pulse height distribution at the output of a scintillation counter

, 1966
A systematic approach has been made to the prediction of the pulse height distribution at the anode of the photomultiplier in a scintillation counter arising from a distribution of electrons in the scintillator.
H. J. Gale, J. Gibson
semanticscholar   +1 more source

The Scintillation Counter as a Proportional Device

Review of Scientific Instruments, 1949
The statistical distribution of fluctuations in the gain of a 1P21 photo-multiplier tube has been investigated and standard deviations of 36 percent to 48 percent have been found. The distribution in photo-multiplier output pulse heights obtained with Po alphas incident on a ZnS screen has also been investigated and standard deviations of 27 percent to
openaire   +3 more sources

Liquid Helium Scintillation Counter as a Neutron Polarimeter

, 1961
A liquid helium scintillation counter has been constructed and used in analyzing the spin polarization of neutrons in the range of energy near 20 Mev. Details of construction and operation of the device are described.
J. E. Simmons, R. Perkins
semanticscholar   +1 more source

Electron energy studies with the anthracene scintillation counter.

Review of Scientific Instruments, 1951
Using a β‐ray lens spectrometer to supply electrons of a given energy, a study of the response of the anthracene scintillation counter to monoenergetic electrons has been made.
J. I. Hopkins
semanticscholar   +1 more source

Scintillation counter stability

Nuclear Instruments and Methods, 1980
Abstract In view of the lack of available data on the stability over a period of days of a typical scintillation counter system with “standard” electronics, a brief report is presented on the performance of twelve scintillation counter systems over a period of six days.
openaire   +2 more sources

Detection of Neutrons with a Large Liquid Scintillation Counter

, 1954
A cylindrical liquid scintillation counter, 75 cm in diameter and 75 cm high has been used for the detection of neutrons, gamma rays, and cosmic ray μ mesons. A delayed coincidence technique has been used to detect neutrons; the first pulse corresponding
F. Reines, C. Cowan, F. B. Harrison, D. Carter   +3 more
semanticscholar   +1 more source

Cerenkov-scintillation counter measurements of nuclei heavier than helium in the primary cosmic radiation: 1. Charge composition and energy spectra between 200 Mev/nucleon and 5 bev/nucleon

, 1967
Studies of the energy spectrum and charge composition of the primary cosmic radiation have been carried out on seven balloon flights at five geomagnetic latitudes using a Cerenkov-scintillation counter telescope that has geometrical factor ≃ 50 st cm² ...
W. Webber, J. Ormes
semanticscholar   +1 more source

Scintillation and Semiconductor Counters

1993
As stated in Chapter 7, the detection efficiency of γ- and x-rays in gas detectors is very low, because these penetrating radiations travel through the low-density gas with little interaction. To improve counting efficiency for these radiations, solid and liquid scintillation detectors with high density are used.
openaire   +2 more sources

RESEARCH WITH CRYSTAL COUNTERS AND SCINTILLATION COUNTERS

1954
Abstract : The purposes of the experiments carried out under this program are: (1) to develop efficient and reproducible counters and (2) to investigate the physical phenomena involved in the counting process as an aid in understanding further luminescence in molecular systems.
George J. Goldsmith, K. Lark-Horovitz
openaire   +2 more sources

Scintillation Counters and Phosphors

Nature, 1954
Scintillation Counters By Prof. J. B. Birks. (Pergamon Science Series: Electronics and Waves.) Pp. viii + 148 + 4 plates. (London: Pergamon Press, Ltd., 1953.) 21s.
openaire   +2 more sources