Biopolym. Cell. 1990; 6(5):46-48.
http://dx.doi.org/10.7124/bc.00028A
Structure and Function of Biopolymers
Magnetical defocusing tips for increasing threshold sensitivity of photoelectron multipliers
1Govorun D. N., 1Mishchuk Ya. R., 1Zheltovsky N. V.
  1. Institute of Molecular Biology and Genetics, Academy of Sciences of the Ukrainian SSR
    Kiev, USSR

Abstract

The design of magnetostatical defocusing tips, worked out by the authors, is described. The tips are used for increasing threshold sensitivity of photoelectron multiplier having semitransparent face photocathode due to a decrease in the working diameter of photo-cathode. The data on tests of the device with photoelectron multiplier PEM-130 are represented.
Full text: (PDF, in Russian)

References

[1] Vetokhin SS, Gulakov IR, Pertsev AN, Reznikov IV. One-electron photodetectors. Moscow, Atomizdat, 1979; 192 p.
[2] Subbota-Mel'nik PA, Skirda AS. Optics and spectroscopy: application of electronics in optical devices. Kyiv, Izd-vo Kyiv univ. 1982; 44 p.
[3] A. p. 723391 USSR. Device to increase of the threshold sensitivity of the photomultiplier. DN Govorun, II Kondilenko, PA Korotkov. Otkrytiya. Izobreteniya. 1980; N 11.
[4] Govorun DN, Korotkov PA. Raising the threshold sensitivity of photomultipliers external magnetic field. AS UkrSSR. Inst. molecular. biology and genetics. Kyiv, 1986; 35 p. Dep. in UkrNIINTI 26.05.1986, N 1120-Uk86.
[5] Quater GS, Konshin VM, Lindberg EG, et al. Food photomultiplier operating in the photon counter mode. Pribory i tekhnika eksperimenta. 1970; (3) :212-3.
[6] Govorun DN, Kondratyuk IV, Mishchuk ZR, Zeltovskyi NV. Hardware complex for the study of Raman spectra of biopolymers: Proc. of reports 4th All-Union coordination meet. on the spectroscopy of polymers. Minsk, 1989; 32.