I would love to know what this datasheet says because I’d like to use this part in a project.
Details such as “the part will self ignite if you hook it up thusly” would be particularly helpful.
Can anyone read Russian (Cyrillic)?
Update:
Thanks to everyone who stepped up to translate the datasheet! You guys are awesome!
Here is a photo of the tube that I am pretty sure goes with the datasheet above. It’s a CI-3BG Glass Geiger Müller Tube from Electronics Goldmine.
Electronics Goldmine’s description mentions that this tube is intended to detect gamma rays. Based on the translations, this is true, but the tube appears to be sensitive to beta radiation as well. This is one of the things I was hoping to learn from the datasheet, in addition to the driver requirements and any hints about it’s original application.
The unique part about this tube (to me) is that the envelope is made of glass, and the “active area” (or whatever it is called) is fairly small – this is perhaps consistent with the intended application in very high radiation environments. If anyone knows anything else about these tubes and their differences compared to more “traditional” metal-can Geiger tubes, please leave a comment!
No idea what I am talking about? Wikipedia to the rescue!
Yes, I haven’t seen any tubes like this before, but that certainly sounds accurate.
A GM tube can basically in theory always detect any alpha, beta or gamma radiation, X-rays, or other charged particle radiation.
The radiation particle just needs to be able to penetrate the outside of the tube. For a photon, a gamma ray, that’s not gonna be a problem. However, for a beta particle (an electron) it might be a problem; a metal tube might create considerable attenuation, especially for low energy betas.
Therefore, the glass-walled tube is probably better at detecting betas, especially if they have relatively low energies. (The energy varies depending on what the source of the radiation is).
The most sensitive tubes usually have a (gas-tight) window of thin mica which provides an airtight seal but provides minimal attenuation of the radiation – even allowing alphas to penetrate the tube.
The “friskers” used by the US Navy also have a glass tube. These are used to scan an individual coming out of a radiation area to check for contamination.
In a previous life I worked for one of the shipyards doing various testing. One of the projects our group supported was testing inside the reactor compartment on submarines, with sensors located in many out of the way locations. When we were setting up for one of these tests, I inadvertently grabbed hold of a hot pipe and burned my hand. Feeling like I might pass out, exiting the reactor compartment seemed like a prudent idea. In this reactor compartment, there were no known areas of loose surface contamination, so no special clothing was required.
I immediately started running the frisker over my body when I exited the reactor compartment. BEEEEEEEEPPPPP. Damn, every time I ran it over my shoe, it started to howl, indicating contamination. Well, I had been in some seldom-visited areas, so it wasn’t inconceivable that I had found a contaminated area. I remember thinking “crap -they’ll take my shoe.” Still feeling like I was going to pass out, I continued frisking. CRAP…now the thing is going off when I go over my shirt!
This has become a big deal. The contamination alarm was sounded throughout the boat. Hatches slam. The chief engineer and captain appear, wanting to know exactly where I had been. And I still feel like I’m going to pass out.
Cutting a long story short, I eventually noticed that the frisker was going off only when pointed a certain direction, and it would go off when turned that direction no matter what was nearby! A second frisker was located and all the “contaminated” areas checked. Not a peep.
It turned out that the glass-tube sensor had a crack in it, and any time it was in a certain orientation, the alarm would sound! A lesson learned the hard way.
Jon
Jon,
I bet your heartrate went up a bit when the beeping wouldn’t stop!
Cool story, thanks for sharing!
The part of the story I didn’t mention was that there was a new guy in the reactor compartment helping me with the instrumentation. I left him there to carry on in my absence. The next thing he knew the contamination alarm was sounded and he could hear hatches slamming. HIS heart rate definitely took a jump.
Any contamination would have been like dirt or other loose material. If there had been contamination, the first step is to remove clothing. Forget what you’re seen in Silkwood and other movies with the big scrub brushes. If there is contamination on the skin, it’s wiped off with alcohol on a rag. The last thing you’d do is use a scrub brush which could break the skin and drive it internally.
Fortunately, I’m happy to say this is the closest I ever experienced a contamination incident. US Naval reactor compartments are very clean spaces.
Luke – Am I correct in my assumption that the active area of the detector is the part in the center, which looks like a coil of wire on the outside (the cathode) and a thin wire through the center (the anode)?
I updated the post with a pic and link to the tube.
So, what’s special about the construction of this particular GM tube?
Now… why would there be an available surplus of high-rate Russian G-M tubes from 1985?
Wow, thanks guys!!! Surely given the three excellent translations (and a couple good runner ups) so far, I will be able to piece together an accurate English version of this datasheet! Thanks to Tim, Anton, magnum16, user, and Brent. Brent, I think yours is the most clearly written of them all, congratulations. 🙂
Part of the reason I am interested in a translation of this datasheet is because the particular tube I am looking at has a unique construction. I will have to upload a picture of it. Given the 900 R/h maximum, I think I now understand that this tube is for use in very high radiation areas, which might explain the unique design.
Again, thanks to everyone who replied. You guys are awesome.
I can probably get my wife to translate it if you’re still stuck..
Mail Me or tweet me @CustardCat
B
Here’s my translation:
The beta-gamma radiation meter.
Can measure radiation up to 300 roentgens/hour, in both impulse and current
modes. It meets category 2.1 of the GOST 15150-69 datasheet for climate
resistance. Made in November 1985.
Schematic.
A – anode
K – cathode
Primary electric and radiation parameters.
Minimum activation voltage – 290 volts.
Maximum activation voltage – 330 volts.
Minimum effective length of counting plate unit – 80 volts.
Maximum incidence angle of counting plate unit – 0.25 degrees/volt.
Maximum incidence angle of volt-amp unit – 1.5 degrees/volt.
Minimum counting rate in impulses/second x (roentgens/hour)^-1 – 1.3×10^-5
(188)
– 2×10^-5
(282)
Allowed usage parameters.
Minimum voltage on anode in impulse mode – 380 volts.
Maximum voltage on anode in impulse mode – 460 volts.
Minimum voltage on anode in current mode – 382 volts.
Maximum voltage on anode in current mode – 398 volts.
Minimum operating current – 15 microamps.
Maximum operating current – 20 microamps.
Maximum 1-minute average of incoming radiation – 900 roentgens/hour.
Operational warnings.
1. All operational parameters must be within the indicated minimum and maximum
values during use of this device. Failure to meet this requirement may
result in the loss of all measurement ability.
2. It is important to:
– keep dirt away from the meter, especially so as to maintain its
electrical isolation properties.
– keep the meter safe from impacts and other mechanical damage.
– observe correct node polarity during installation.
Specification ODO 339 387 TU.
Beta-gamma radiation counter is intended for registration of gamma radiation with exposition dose up to 21,5*10(-6) A/kg (300 R/h) in both pulse and current modes.
A-anode
K-Cathode
Basic electrical and radio technical parameters
Voltage of beginning of the counting not less than 290 not more than 330
Length of the plateau of the counting characteristic 80
Inclination of the plateau of the counting characteristic %/V, not more than 0,25
Inclination of the volt-amper characteristic, %/V, not more than 1,5
Sensitivity by the speed of counting, pulse/s*(A/kg)(-1) pulse/s*(R/h)(-1), not less than 1,3*10(-5) for I88, 2*10(-5) for 282 (it seems to be depending of the device attestation class)
Allowed working modes
Parameter – Normal value
Anode voltage in the pulse mode, not less than 280 not more than 460
Anode voltage in the current mode, not less than 382 not more than 398
Maximum working current, not less than 15 not more than 20
Maximum allowed radiation power of the exposition dose of gamma radiation, A/kg (R/h), (in one minute time), not more than 6,4-10(-5) (900)
Usage directions
1. When using the counter, values defining usage mode should not exceed directed values. Avoiding this requirement may cause the breakage of the counter.
2. For continuous and robust work of the counter it is needed:
– Do not allow ingress of a dirt which may worsen the resistive properties of the device;
– Keep the device from kicks and mechanical breakage;
– When turning on keep polarity correct.
lol, late)
Left page:
Beta-gamma counter designed for registration for registration gamma-radiation with power up to 21.5*10^-6 Ampere/kilogram (300 rad/hour) in impulse and in current mode.
/some not useful info/
Diagram. A – anode, K – cathode.
Characteristic:
Voltage starting count, V – not less 290, not more 330.
Length of plateau of a counter tube, V, not less – 80.
Slope of plateau of a counter tube, %V, not more – 0.25.
Sensitivity of counting rate, impulse/second * (Ampere/kilogram)^-1 impulse/second * (rad/hour)^-1 – not less 1.3 * 10^-5 (188), not more (?) 2 * 10^-5 (282)
This is my try(not mother language but close):
(page 1)
Counter beta-gamma radiation TSIZBG designed for gamma-radiation detection wit power of exposition dose to 21.5 * 10-6 A/kg (300 R/h), in impulse ot current mode.
Counter supplied climatically UHL category 2.1 according to GOST 15150-69. Production Date NOV.1985
The type of connection of electrodes :
A-anode
K-cathode
Basic Electric and radio options
Voltage beginning accounting, V, not less than 290V, not more than 330V
The length of the counting plateau characteristics, V, not less than 80V
The slope of the counting plateau characteristics,%/Volt, not more than 0.25 %/V
The slope of current-voltage characteristics, %/V, not more than 1.5 %/V
The sensitivity of the counting rate, impulses/s (A/kg)^-1 is not less than 1.3 * 10 ^ -5 (188) impulses/s (R/h)^-1 not less than 2.10^-5 (282)
(page 2)
Allowed exploatation modes:
The voltage on the anode in a pulsed mode, in not less than 380V, not more than 460V
The voltage on the anode current mode, no less than 382V, not more than 398V
Most current, uA, not less than 15uA, not more than 20uA
Maximum permissible power exploatation dose gamma-radiation, A/kg (R/h), (for 1 min.), Not more than 6.4 – 10^-5 (900)
Exploatation instructions:
1. When using the counter the values that determine the mode exploatation, should not exceed the specified maximum allowable value. Failure to comply may result in loss of efficiency meter.
2. For a long and stable operation of the counter should:
Do not expose the counter of any kind of pollution that might affect its insulating properties;
Protect the counter from shock and mechanical damage;
observe polarity before switching on the counter.
Specifications ODL 339 387 TU
Best I get is below. Try using online OCR services then google translate or similar. Thats how I got that far…
OKP 63 645І 1436
Counter СИ.5БІ ‘
Label
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for gamma. radiation power ekspoei
tsiovnoi doses up to 21 5 10-¤ A / kg (300 R / h), as in
shpulsnoi and in * price redshah
Counter supply in mschaticheskoi ИСПЫІНЄНІІІ!
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released
Hema connect the electrodes with the findings
The cathode
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max
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harakteristdki, in not less
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rektervstkya; / B, Th more
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