Recent content by Jr_Particle_Hunters

  1. Jr_Particle_Hunters

    Water splitting catalyst help please

    Hi Borek. When we run the water splitting process, it involves using four 9V batteries in a series to power electrolysis via two nickel electrodes suspended in the phosphate buffer solution. Our multimeter shows a stable 2.20V running through that 'circuit' to power the water splitting. Next...
  2. Jr_Particle_Hunters

    Water splitting catalyst help please

    Hi there. We are working on a school science project to compare how different catalysts in water splitting affect the energy/voltage needed to carry out the process. One of our catalysts will be Co-Pi, which is created by adding Cobalt-nitrate to a .1M phosphate buffer solution during...
  3. Jr_Particle_Hunters

    B U-238 decay chain question

    Thank you for replying so quickly! Based on what you wrote, so if we bought our needle from a company that used pure Pb-210 to coat the needle head, and we began our experiments about two weeks after receiving it, then we are likely seeing beta tracks from both the Pb-210 decay and Bi-210 decay...
  4. Jr_Particle_Hunters

    B U-238 decay chain question

    Hi. We are using a Pb-210 needle source for our cloud chamber science project. Are we correct that the tracks we are seeing inside the chamber radiating off the needle are: 1) Beta tracks from Pb-210 decaying into Bi-210 (in the .063 MeV range) 2) Beta tracks from Bi-210 decaying into Po-210...
  5. Jr_Particle_Hunters

    B Muon shielding possibilities

    We only know the rate of muons, but don't know the rate of how often muons create high energy electrons near sea level.
  6. Jr_Particle_Hunters

    B Muon shielding possibilities

    What about trying to shield against electrons passing through the chamber (electrons that are created by muons decaying and interacting just outside the chamber)?
  7. Jr_Particle_Hunters

    B Muon shielding possibilities

    We are doing a science project to test different kinds of shielding against cosmic and background radiation in a cloud chamber. Could you please help us with some suggestions?
  8. Jr_Particle_Hunters

    B Muon shielding possibilities

    Hi! If water and hydrocarbon rich materials are good at absorbing cosmic radiation, would they also work for shielding muons at sea-level? What about gamma rays and electrons created by muon decay at sea-level...what would be good shields against those? Thanks!
  9. Jr_Particle_Hunters

    B Beta particle penetration in our cloud chamber?

    Thank you again for the reply! Strangely, today I was told by someone in the radiation supplies industry (emitters, etc) that a majority of tracks in a cloud chamber are the result of cosmic radiation decaying and knocking atoms loose from atoms in the chamber's vapor. So much for a consensus:)
  10. Jr_Particle_Hunters

    B Beta particle penetration in our cloud chamber?

    (Dad writing for boys now...thanks for helping out:) The main source of our confusion comes from still not being certain about the actual source of the ionizing radiation causing the tracks...Is the main source simply Cosmic background radiation whizzing straight through our chamber, and...
  11. Jr_Particle_Hunters

    B Beta particle penetration in our cloud chamber?

    mfb, So you think that even the high-energy beta particles in the chamber are starting and ending inside the chamber only, and are being created by ionizing radiation already present in the air trapped inside the chamber?
  12. Jr_Particle_Hunters

    B Beta particle penetration in our cloud chamber?

    Hello. We are elementary school kids who built a cloud chamber for our science project to test out the effectiveness of different shields against background radiation. We are not sure about something involving beta-particles. Can you help us please? We know low-energy beta particles cannot...
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