Medical Test Radiation Dosages

Medical Tests

The Following is a listing of typical dose levels, per the American Nuclear Society:

Arm or leg X-ray:1 mrem

Dental X-ray: 1 mrem

Chest X-ray:10 mrem

Nuclear Medicine (thyroid scan): 14 mrem

Neck/Skull X-ray: 20 mrem

Pelvis/Hip X-ray:65 mrem

Head CT (computed tomography) Scan:200 mrem

Upper GI X-ray: 245 mrem

Barium Enema:405 mrem

EM3830 Low Frequency Readings on a Workplace Microwave

Using a Gigahertz Solutions ME3830B M/E Analyser, I take some EMF readings on an officeplace microwave oven. The Gigahertz Solutions ME3830B M/E Analyser is both an electromagnetic field meter and electric field meter. The range for this instrument is 5 Hertz to 100 Kilohertz.

Radiation Readings At Coldwater Crossing

NE corner of the Wal-mart stoare parking lot at Coldwater Crossing, 5525 Coldwater Rd.The google map coordinates for this reading - 41.129171, -85.137011.

Now that I have established that the device is stable, have dune multiple tests of up to 180 readings at several locations, it is save to assume that no more than ten or so readings are required at any one spot. (See this link – Click here.) This is a great bonus in that I no longer need to remain in a spot for thirty minutes to ah hour or drive away and return later in order to be certain of accurate readings.

Like the rest of my Reading in Fort Wayne there is nothing particularly interesting at this spot except for that it remains in the lower end of the scale.


January 14, 2013 - 19reads, minimum 0.05, Max 0.10, average 0.07

-----------------------------------------------------------
Product model: Radex RD1212
Serial number: 11130101000951
File name:     H:\Gieger Counter readings\Coldwater Crossing\Coldwater Crossing walmart Jan 14, 2014.txt
Period      From                     μSv/h
-----------------------------------------------------------
1m          01/10/2014 17:26:13      0.09
1m          01/10/2014 17:08:13      0.05
1m          01/10/2014 17:09:13      0.09
1m          01/10/2014 17:10:13      0.07
1m          01/10/2014 17:11:13      0.09
1m          01/10/2014 17:12:13      0.08
1m          01/10/2014 17:13:13      0.08
1m          01/10/2014 17:14:13      0.07
1m          01/10/2014 17:15:13      0.07
1m          01/10/2014 17:16:13      0.07
1m          01/10/2014 17:17:13      0.07
1m          01/10/2014 17:18:13      0.07
1m          01/10/2014 17:19:13      0.06
1m          01/10/2014 17:20:13      0.10
1m          01/10/2014 17:21:13      0.08
1m          01/10/2014 17:22:13      0.06
1m          01/10/2014 17:23:13      0.08
1m          01/10/2014 17:24:13      0.07
1m          01/10/2014 17:25:13      0.07

My Review of the Radex RD1212 Radiation Dector

The Radex RD1212 is a nice unit with an SBM-20 tube. It is affordable and allows you to transfer your data collections to a PC and save it to a .txt or .csv file. The menu is easy to figure out with only a little effort and the company's support is surprisingly very good. If you do your research and due diligence, you will find that the Radex RD1212 falls with the same accuracy range as many of the more expensive models and is in fact sometimes 5% more accurate than some of the more expensive models.

WHY I CHOSE THIS MODEL:
The Radex RD1212 had good Amazon reviews and apparently 2 were engineers. I checked to see if they reviewed other products and determined they were "real" persons not merely plants entered by the manufacturer.

You don't have to take batteries out first when connecting to a PC, as was necessary on a competitor's model.

The unit gives you the ability to take and record multiple readings then transfer the data to a PC.

I was able to download and see the RadexRead software (available at quatrarad dot com) without making a purchase. I could see what other users were doing all over the world.

The Radex RD1212 units are made in Russia not China or Korea. They are not among the lower quality units that have recently flooded the market.

The price seemed like a good value. The Radex 1212 unit has the same accuracy as units priced well over three times as much.

Pre-support questions were well answered. The support person was well informed and honest and more than answered any questions.

Quatra has a pretty good manufacturer's website. There is lots of good information about the product there.

The price seemed like a good value.

The Amazon guarantee is one of the best on the web.

AFTER PURCHASE:
Support continued to very good and helpful.

The battery life in the unit is surprisingly long!

The manual is a good quick start guide, but I think they should have a more detailed one on the website - but this is a very minor issue. The site provides a good video on how to upload information into a global app used by other Radex users and the email support is excellent.

The unit works in below freezing weather. No damage to screen or unit when left over night in 5 degree weather.

The unit will let you record you readings in the following intervals -1 min, 5 min, 10 min, 30 min. 1, hour, 2 hours, 4 hours, 6 hours, 12 hours, and 24 hours. You can take up to 180 readings and transfer the data to a PC.

When using the RadexRead app you can plot the readings on the map so the network of other users can see them and/or save the readings to a text or csv file on your PC - great feature.

The background lite is handy in dark areas or outside at night and turns off rather quickly to save battery loss. It also turns back on at the tap of a button.

OTHER CONSIDERATIONS:
If you are purchasing a radiation detector, do not confuse this with High frequency EMF meter or even a Low frequency meter. This device is not intended for getting reads on microwaves, cell phones, etc. You will not get any readings on those. With that said the unit functions as it is intended to do.

You must also realize that the radiation levels are constantly fluctuating. These fluctuations and even spikes can be caused by the natural minerals in the area, building materials, and even cosmic activity such as solar flares or moun showers which will give a sudden short spike that is significantly larger than ordinary fluctuations.

I have compared my readings with that of other Radex RD1212 users and readings taken worldwide from off the RadexRead app and from safecast.org as well. It is in line with what is to be expected.

I tested my unit thoroughly taking multiple readings 3 different locations taking as many as 180 reads in some tests. Each location had its own range and one location (location #3) showed what could be considered noticeably wider fluctuations and spikes. However, I could not reproduce those spikes or as wide a range in the other areas. Nor could I reproduce the smaller levels or ranges of locations 1 & 2 at location 3. This shows the device is consistent and only spikes for a good reason, known or unknown. After testing and taking over 2000 total readings from 3 different locations, I have concluded the device is stable. I emailed my readings to a much more advanced user who owns about 5 different radiation detection devices and he agreed with my conclusion.

I would not be concerned about dropping it on the carpet or grass, but it looks like it may be damaged or crack if it fell on cement, a hard wood floor, or asphalt. If someone shows me a video showing otherwise I will change this line. This too is a minor issue, as one should not be dropping scientific instruments in the first place.

If you use it in high humidity like at a beach, in snowy weather or during a mist, you would be wise to put it in a zip lock baggie to protect it from moisture. I would suggest this with almost any unit you purchase. I have used the unit in snow and mist with no issues by using a zip lock baggie. Use a zip lock baggie not a folding baggie.

The unit also has as small flash light, which at first I though was silly, but when I dropped my keys one night in a dark parking area, I actually used that feature.

Once again you can easily pay $800 and much more for a unit that is no more accurate than this one.

To see my post and pictures of the day it arrived - click here .