Re: Alpha and Beta particle Spec
Geo, I¡¯m looking for the numbers ¨C what was the flow rate and how long was it running when you took that picture? Until you get another filter I would not load that one up as it¡¯ll take over 8
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Dude
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#151
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Re: Alpha and Beta particle Spec
Yes it has to run for a good long time to get your stable reading, when first started pumping it reads very low, orders of magnitude.NICK- ask this question of your contact - what OTHER isotopes can
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Geo Dowell
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#150
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Re: Alpha and Beta particle Spec
Geo, Yes 1.8 pCi/l you just have to multiply the screen reading by 1000 to get Liters. How long was that run when you took the picture, 53 min or so? and what was the flow rate 0.87 l/m? That low
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Dude
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#149
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Pictures of inside the IMPEX ALPHA head.
4 screws and the "nose cone" top part of the sensor housing separates. It has the sensor in it, hardwired with 6 wire umbilical cord. Sensor faces down towards the filter, and the lever mechanism that
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Geo Dowell
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#148
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Re: Alpha and Beta particle Spec
nick A mini split ductless heat pump is great. i have a 18,000Btu unit on the west side of my house.i chose a reliable jp brand: Daikin. just in case you werent familiar, there are units that support
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peter
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#147
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Re: Alpha and Beta particle Spec
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Geo Dowell
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#146
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Re: Alpha and Beta particle Spec
doesn't that work out to 1.8pCi/L?1.8 pCi/LThat's about right for here, I think. Normal background Gamma is low here in particular because behind the house is no ground, just air.Geo
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Geo Dowell
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#145
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Re: Alpha and Beta particle Spec
I live on solid (fractured) limestone here in TX Hill country. Well, we do have 2-4 inches of soil, mostly. In my shed, even with the sources I've mentioned being stored in there, I expect low Radon
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Nick Andrews
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#144
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Re: Alpha and Beta particle Spec
Geo, You may have to recalibrate the touch screen . Mine was very hard to get the monitor tab to come up. There is a procedure in the manual that will allow you to fix the touch screen positions. I
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Dude
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#143
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Re: Alpha and Beta particle Spec
It took more time to figure out you can't punch those buttons easily with FF (Fat Fingers) Tried some tools and found something that worked AOK. Following your instructions was easy (sort of, regular
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Geo Dowell
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#142
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Re: Vacuum pump for sampling
You hear that sound? That's God laughing while we make plans... Okay, just got back from watching Top Gun: Maverick. As a child of the Cold War, it was awesome. Sorry, but seeing an F-14 fly still
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Nick Andrews
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#141
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Re: Alpha and Beta particle Spec
Sweet. Let me know about the contact I sent you. I did tell him we have people with decades of experience playing with these units. I might've mentioned some facilities but no names.
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Nick Andrews
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#140
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Re: Vacuum pump for sampling
I¡¯ve become adept at climbing over things for long distances. It¡¯s getting it back that¡¯s the hard part. Dud Sent: Sunday, May 29, 2022 2:00 PM To: [email protected] Subject: Re:
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Dude
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#139
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Re: Vacuum pump for sampling
What normally goes in those glass bottles Nick?Geo
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Geo Dowell
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#138
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Re: Vacuum pump for sampling
"doh!"That's what I say 20 times a day, Today it was looking when the shed project needed a piece of sheet metal sheared, and I could see the shear in the garage, but would have had to move the
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Geo Dowell
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#137
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Re: Alpha and Beta particle Spec
Thanks Dudley, that's a tremendous boost. I'll give that a try tomorrow, and maybe try making a paper card filter holder clone to get up to near 2" filter in there. That should help the air pumps from
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Geo Dowell
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#136
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Re: Vacuum pump for sampling
Good points, and I was wondering about that because I don't want to be breathing oil mist either. Will check for oil on output but for sure install a catch filter if there isn't one in the bottle on
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Nick Andrews
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#135
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Re: Vacuum pump for sampling
I have multiple suitable transformers, somewhere. Not set up yet here though. And yes, a number of flow gauges, somewhere...doh! wrote:
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Nick Andrews
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#134
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Re: Alpha and Beta particle Spec
Who's Al? wrote:
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Nick Andrews
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#133
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Re: Alpha and Beta particle Spec
Nick / Geo Record your original settings before changing things. Then open the Monitor tab then Instrument options. Check only Bypass Filter Log on and calibrate in cpm In the displayed column I¡¯ve
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Dude
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#132
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