Mc-9 ?-selective Geiger Counter Tube For Prof. Radiation Detectors (rare)

US $44.00

  • Saint-Petersburg, Russian Federation
  • Jan 30th
Lot of 1 ps. new, never used Counter tube MC-9 with manual (see picture).   It`s device from old laboratory stock, new. Professional series of GM-counter tubes with large voltage of power and high efficiency of detection. Description:  MC-9 Geiger counter tube with copper cathode used in professional ?-selective radiation detectors for high-accuracy measures. `Also used in demonstration devices (measuring the age of minerals by the activity of the isotope potassium-40).       Analogues:  MC-4; MC-6; MC-7     Tech. spec.:     ·         Radiation determine:   (?) gamma soft/hard ·         Voltage of start of counting: 720 - 780V ; ·         Operating voltage (recommended): 870 - 930V; ·         Length of flat part of counting curve (plateau):  250 V ·         Slope of the counting curve:   < 0.1 %/V; ·         Sens. background:   < 280 counts/min; ·         Maximum counting range: 5*10E4 counts/min ·         Load resistance: 8 - 15  MOhm ·         Counter resistance: 4 - 8  MOhm ·         Allowable stray input capacitance: < 25 pF ·         Working temperature range: -40…+50 C ·         Anode material: Platinum (Pt) ·         Cathode material: Copper (Cu) ·         Weight: ~20g. ·         Dimensions: counter length 360mm, diameter 31mm      All counter tubes tested before shipping. Worldwide shipping via Airmail with tracking. Carefully package.  Have any questions please contact me. See my other nuclear lab lots ;)
Condition New other (see details) :
A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections.
Seller Notes New old stock. Never used. Tested.

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