A Comparison Between a Geiger‐Mueller Counter, a Secondary Electron Multiplier Tube, and Photographic Film for Detecting Weak X‐Rays

1941 ◽  
Vol 12 (12) ◽  
pp. 582-586 ◽  
Author(s):  
A. Eisenstein ◽  
N. S. Gingrich
Shinku ◽  
1974 ◽  
Vol 17 (7) ◽  
pp. 235-241
Author(s):  
Hiroshi YAMAMOTO ◽  
Shigeo YOSHINO

Author(s):  
В.Т. Коган ◽  
Ю.В. Чичагов ◽  
А.А. Богданов ◽  
А.С. Антонов ◽  
Ю.В. Тубольцев ◽  
...  

AbstractAn IDS 2030 IonCCD coordinate-sensitive detector (Analytical/CMS Field Products) is interfaced with a small-sized mass spectrograph developed at the Ioffe Physical Technical Institute, Russian Academy of Sciences. The measurement data obtained with the mass spectrograph using an IonCCD detector and a Magnum-5901-37029PS channel secondary electron multiplier (Photonics USA Inc., United States) are compared. The results of measurements are discussed, and the prospects for using the IonCCD coupled with a microchannel plate are assessed.


1972 ◽  
Vol 27 (1) ◽  
pp. 162-168 ◽  
Author(s):  
Hans Knof ◽  
Volker Hausen ◽  
Dieter Krafft

Abstract An electron attachment ion source was modified in order to be used for quantitative measurement of pure organic substances at pressures up to 1.5 ·10-3 Torr in the space around the ion source. The ion intensity was determined by counting the electron pulses produced by single ions in the secondary electron multiplier. This resulted in higher sensitivities. The measurements of different organic compounds showed that molecular polymers are held together primarily by hydro-gen bonding and by dipole interaction. No molecular polymers could be identified in nonpolar substances. The pressure dependence of the ion intensities indicates that the molecular polymers originate from the gas phase of the reservoir. During the ionization process the hydroxide loses its hydrogen atom as was shown with deuterated samples.


2014 ◽  
Vol 57 (3) ◽  
pp. 317-319
Author(s):  
Z. K. Nurubeyli ◽  
K. Z. Nuriyev ◽  
K. B. Gurbanov ◽  
Sh. Sh. Alekberov ◽  
G. M. Kerimov ◽  
...  

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