Recent content by Jhon81

Hi Gleem could you give me an example? Thanks

Thanks all. I am not sure if the major elements I wrote are for that specific accelerator design in the question or is it a general protection program elements! Any thoughts?

Hi everyone, I have this question attached from the ABHP exam in part B you are asked to list and justify 4 major elements for accelerator radiation protection program for this specific facility, I have written some answers which are : 1) ALARA which includes : time distance shielding source...

what do you mean to get my x-axis unit right? In this picture, you can see that the points are very spread ( the spectra is not smooth) but in the second one, it is smoother.

The x-axis unite is nm. I tried to compare the 4th irradiated with the background background spectra 4th irradiated spectra subtraction of the above spectrums Is it good that the spectra are in the minus y-axis or not, but I noticed that the points are not very spread which makes the...

I added them to see the shape of the spectrum. This is the spectra of the background and the first irradiated sample, respectively: As for the unit, I am not sure as it was my first time using that spectrometer, I am going to check and let you know. If you mean the concentration of irradiated...

Thanks, mfb and mjc123 for your comments. I subtracted the background from the signal but after plotting it seems that the points have spread! why is that? then I tried to add them and the shape of the plot was looking more nicer, could someone explain what happened to me?

Hi everyone, I have an absorption spectrum that I obtained from a sample after radiation and I need to use the background sample as a reference, how can I do that using excel? what I did is subtract the radiated from the background spectrum then plot it, is that right? Thanks.

Hi Dale, I was thinking of calibrating the scale every time I use it to minimize the error. I have a 100 gm weight to calibrate the scale so after calibration I weight it and gave me ( 100.320gm, 100.460gm, 100.630gm), can this be a systematic error and can i correct it?

Hi Scott, I am going to weight a very small amount of powder ( 0.7 gm ), so I do not think that using a container will help for this small amounts.

Hi everyone, I have a scale that should weight as low as 1mg, if there was a systematic error how could I identify it and include it in my calculations?