Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument is in
good condition, but I have no way of knowing if it actually can detect gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could this
"particle" be a good source for gamma radiation?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.

In article , (Brad) wrote:
Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument is in
good condition, but I have no way of knowing if it actually can detect gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could this
"particle" be a good source for gamma radiation?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.


By the name it sounds like one of those yellow boxes for CD work. I bought two
and could never get them to work right. Well one had a busted meter movment.

I measure 2 MR right at the clock face of by old Baby Ben, thats with the alpha
shield removed. I measure a higher reading, forget exactly, of my Pentax 50 mm
lens on the backside, since it has a Uranium based oxide coating.
The radiation source on the side of the meter I'm using also has a similar reading
as the clock face. The clock face has a plastic cover and would be a higher reading
without it. There is more Gamma comming from my camera lens, cause shielding
has less effect as the clock face. I don't know what the reading might be inside a smoke
detector, but I could not measure it through the case probably indicating an alpha source.

greg

Brad wrote:

Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument is in
good condition, but I have no way of knowing if it actually can detect gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could this
"particle" be a good source for gamma radiation?

Thanks in advance, Brad

smokes are alpha, americium 241. I cant think of any convenient gamma
sources, other than a nuke reactor, if you ever go near one on your
travels.


NT

On Mon, 14 Aug 2006 17:51:27 GMT, (Brad) wrote:

Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument is in
good condition, but I have no way of knowing if it actually can detect gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could this
"particle" be a good source for gamma radiation?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.


Years ago Colmen Lantern mantels were radioactive

I have a water pitcher that is over 60 years old, orange glaze, that
reads 1000 counts per min. urainium oxide.

In article , wrote:
On Mon, 14 Aug 2006 17:51:27 GMT, (Brad) wrote:

Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument is in
good condition, but I have no way of knowing if it actually can detect gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could this
"particle" be a good source for gamma radiation?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.


Years ago Colmen Lantern mantels were radioactive

I have a water pitcher that is over 60 years old, orange glaze, that
reads 1000 counts per min. urainium oxide.

Uranium is the beast choice for gamma. I think with those yellow
meters, some kind of deflection should be seen if they go to .005 R.

On a side note, The house across the street was billed as the first family
fallout shelter home, with an integral underground shelter, and extra
strong house construction. They actually called it a bomb shelter.
Ever see that movie where the son came out after so many years Wasn't me.

http://zekfrivolous.com/misc/bomb.jpg

greg
..

"GregS" wrote in message
...
In article ,
wrote:
On Mon, 14 Aug 2006 17:51:27 GMT, (Brad) wrote:

Hi,

I bought a used "Radiological Meter" (gamma radiation detector)
recently. Note: I am an electronic service technician. The instrument
is in
good condition, but I have no way of knowing if it actually can detect
gamma
radiation without a source.

I know some smoke detectors use a radio active "particle". Could
this
"particle" be a good source for gamma radiation?

Thanks in advance, Brad

Yes, the tiny particle does emit radiation that a 700 Victoreen detector
will pick up. I can't remember the activity, but it does read something.
Does your counter not have a source on one side of the housing? Old coleman
lantern mantles have a pretty strong output. I have some uranium marbles
purchased for a few dollars on the bay, they are only mildly radioactive,
but do give an indication.
Hope this helps,
Tom