Recent content by raj26

Hi Bob I have ordered my setup and the gamma ray densitometer for my experiments, and i am eagerly waiting for it to come. In the meanwhile i am thinking of using a computer data acquisition for my gamma ray gauge. What all specifics i need to give it to my supplier. Basically i want the...

I need not worry too much about the suppliers, as my boss will take care of it. I just need to give him the specs . Since my wheel tube is rotating, i can't mount the assembly on the tube. So does your recommended layout still work?

Since my wheel tube is rotating, i can't clamp anything to it. So does your recommended layout still work?

Hi Bob I forgot to tell you that i have to place the density gauge parallel to the pipe(not above the pipe). This is because my slurry is inside a horizontal rotating wheel tube. Then, can i use the same layout or does it change the specs? I live in Canada. Just to be clear to myself, are you...

Hi Bob Regarding your previous calculation, i just had a few questions: a) You showed the sample calculation with 1mCi source strength, but you recommend me 20 μCi for my application? Can i use 1mCi ?. Is this due to exposure concern? b) What beam thickness i am employing? Can i employ...

Hi Bob Thanks a lot for the info. I really appreciate your effort in giving a very detailed explanation every time. I can't be grateful enough.

Hi Bob I am using a 100mm diameter tube .Does this change the source strength and other specifics. What aperture thickness do you recommend. Can you please specify the source strength required for my system in KeV Regarding data acquisition, i just need a digital reading of the local...

Hi Bob I am ordering a gamma densitometer soon. Can you please tell me what all details should i give to the suppliers(one for the source, one for the detector) to get the right specification for my measurements. Thanks Rajesh

One last Q: I verified your answer for the case of solid torus on the net and found that horizontal axis MOI and the diameter axis MOI are the same. Can i assume the same for a hollow torus. (Again i have MOI for it for two axes and i need for the horizontal one!)

Thanks for your answers...Actually i needed MOI for a hollow torus ...I got the two MOI expressions. O

But is the formula you have told applies for rotation around a horizontal axis? The figure shown in wiki is for vertical configuration.

I would like to know the formula for Moment of inertia for horizontal rotation of circular tube(i.e wheel) of mass 65kg, wheel dia=2m, tube dia=0.1m.

Thanks for the numbers. You seem to be an expert in this field. Btw, I read on the internet that only non-ionising rays are heat generating. Since gamma ray is ionising, it shouldn't heat up the test sample. How true is this argument. Thanks Rajesh

Dry coke particles of size 200-600 micrometers will be used to make the slurry. Slurry conc will be varied by manual loading. The density range of slurry will be 800-1400kg/m3 I will use Cs-137. NAI count rate calibration is done both with water and pure MTBE, as both of their slurries are...

First of all, thanks for the response. I am planning to test coke+MTBE slurry in 52.5mm ID plexiglass tube(thickness of 1mm). I will vary the the concentration from 15-35%. The tube is cylindrcial. The literature is loaded with references of using gamma ray for density measuremnts in...