New member: Archaeological geophysicist

All new members, your first post should be an introduction here;
Forum rules
Welcome, these forums are for professional and amateur scientists to discuss matters relating to radiation detection, and to facilitate friendly and honest collaboration. It is a requirement for all members to register using their real names and location. If your name has not already been used, feel free to use it as a login handle, otherwise add your name and location to the bottom of your posts as a default signature. Thanks for cooperating.

If you have a rad related business and want to post information about your products you may do so in the trading post, providing you first introduce your business formally in the introductions forum and add your business details in the signature sections so it is clear to everyone that your post has a commercial purpose.
Post Reply
Posts: 4
Joined: 12 Feb 2017, 07:02

New member: Archaeological geophysicist

Post by hurston » 12 Feb 2017, 07:32

Hi All,

I've just bought a NaI scintillator to evalute for use in archaeological geophysics. The idea is that certain geologies such as clay will have a naturally occuring isotope of potassium, so if there is a variation in the underlying structure of the ground due to archaeology, there may be differences in the readings. I'm not sure I'll get enough contrast, but I'm going to give it a go. There are two hurdles for me to get over. The first is building a suitable carrying rig which keeps the detector close to the ground, but the data recorder within thumb's reach, with shielding of course. The second is to write a suitable data recorder, which is going to be the most difficult. I need to record gridded data, so the data recorder will beep on a regular basis while recording a line of data, so the operator keeps in time with a marked string on the ground, and the data recorder will record the number of readings in that time period as a count of readings for that distance. While I'll have no trouble writing an android app to do the user interface part, I'm much less sure of how to properly interpret the audio data. Can anyone recommend a suitable book on the subject?

David Staveley, UK

User avatar
Steven Sesselmann
Posts: 704
Joined: 27 Apr 2015, 11:40
Location: Sydney

Re: New member: Archaeological geophysicist

Post by Steven Sesselmann » 12 Feb 2017, 19:21

David, hi and welcome to the forum.

My recommendation would be to use Geigerbot it will do almost everything you want it to, except beep every 5 minutes, but it doesn't need to because it will record the count rate directly thereby making it less critical when the detector is moved.

Sure if you are an android user you might be a bit scared of iPhones, but this app will run fine with an old iPhone 4 which you can almost pick up for free.

On completion of your gridded walk you simply press a button which emails the count rate data file with GPS positions.

To take full advantage of using a NaI(Tl) scintillator you can discriminate either side of the K40 peak, thereby ignoring all other counts.

I will send you a link to a book on Gamma Spectrometry

Best of luck..

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest