Recent content by garyd

Sorry i was referring to my lecture notes, n makes a lot more sense, thanks

Yes it should be ##\sigma_{n-1}/\sqrt N## But what value is N

Homework Statement Hi, I am doing some basic X-ray analysis and trying to quantify the measurement uncertainty associated with my determined value for the K-α line of copper. I have obtained the x-ray spectrum from a copper target using a detector and multichannel analyzer (No. of pulses/pulse...

I have verified the results for five different samples and the numbers look good, So am I correct in thinking that at this energy my detector can not distinguish two peaks that are separated by 490 eV

Still working on this and now I'm wondering if my detector energy resolution is the fraction of full width half max of the centroid value? I should also state that I have obtained a counts Vs. energy spectrum of the characteristic x-rays from a copper sample. I have identified the K-α line and...

Homework Statement Hi all, I have been given the task of quantifying the energy resolution of a p-i-n semi-conductor x-ray detector and present it as a value in electron volts Homework Equations %Resolution=E FWHM / Ei Where E FWHM is the full width half maximum of a peak and Ei is the...

Homework Statement The Clapeyron cycle efficiency is similar to the Carnot cycle except that two adiabatic paths are replaced with isobaric processes a) based on the above information, draw a Clapeyron cycle. b)Derive the efficiency of the reversible Clapeyron cycle Homework...

Confidence, I am learning to trust the equations. Another part of the question is; by what factor has the pressure increased? Can I use P V^Ƴ=constant, with p1=1, multiplied by ratio of V1/V2, both to the power of Ƴ? ans=2.95

Homework Statement Hi can someone please have a look at this question and let me know if I am on the right track, thanks. A diesel engine requires no spark plug; instead the air in the cylinder is compresses so highly the fuel ignites spontaneously on injection to the cylinder. Q. If the air...

Hi all I was wondering if someone could have a look at my answer attempts. I am having great trouble with Q.3 so any help would be greatly appreciated. Figures are attached Homework Statement Q1. Sketch expected image profile for rectangular protrusion from an otherwise locally flat...

Thanks very much.

Homework Statement I am confused about what the difference between specific heat and heat capacity is. I have a block of metal (Aluminium) which I had to record dimensions and calculate the heat capacity of the block. I am just wondering am I doing the correct calculation? Homework...

Yes I have been looking at the circuits on the datasheet of the AD595 and I think I can handle them ok.

Sorry