Recent content by aznsaiyan1029

Hi, I have a dumb question about the filled gas inside a Geiger Muller meter. I know it is considered as a gas detector. It requires a filled and quench gas for the probe. My question is: where does the gas get injected into for like a pancake probe. (Let's use Ludlum Model: 44-9 as example)...

What kind of materials are suggested to shield an alpha particle, beta particle, and neutron particle? Or is it energy depended? Will particles just get bounced off / deflected sometimes if a wrong material is used.

Hi, I am wonder if anyone can explain to me in details about the definition and tasks of a radiation safety specialist. Assuming the work site is a hospital, what are the major task and duties for a radiation safety specialist. Is there any good resources I can look into? Thanks.

Hey, i never got your pm. Did you see my pm message though?

I used Cgywin to type in the command. You should be able to run the examples with it after you extract everything correctly. I used one of the graphic program, hepRApp to generate the visual of the examples. When it comes to learning new program, I notice most of the time we are on our own...

Hi, I am new on using the program Geant4. I got it installed into my window xp computer from the instruction from http://geant4.slac.stanford.edu/installation/ I am currently looking for some tutorials on how to use the program. I found some helps from http://geant4.in2p3.fr/2007/prog/prog.htm...

alpha particle usually can be stopped with a thin layer of paper from what i learn in class. Your teacher should have explained the possible radiation safety before you proceed right?

I think I get most of it, but according to Astronuc "Neutrons can certainly be captured by the nuclei of shield material, and that material will become radioactive.". May you give me an example of a shield material that can absorb a neutron? (what magnitude of energy or flux?) Thanks,

In neutron activations, target materials are being beamed by high energy flux, thus making the target materials excited and undergo radioactive decay. Neutron analysis then can be performed after the materials are "cool" enough by placing inside the hood with enough shielding. My question is...

there are troubles to maintain a stable plasma environment with a desirable economic cost. It is more like you lose more energy in making fusion.

I have two nuclear engineer related questions, please bear with me. 1. Why is hydraulic material (like water) is good to shield against neutrons? Why not high Z material like lead? 2. In cross section vs. energy of the nuclei, the curve of the graph undergoes 1/E relationship until it hits...