Chamber Definition and 243 Threads

A diving chamber is a vessel for human occupation, which may have an entrance that can be sealed to hold an internal pressure significantly higher than ambient pressure, a pressurised gas system to control the internal pressure, and a supply of breathing gas for the occupants.
There are two main functions for diving chambers:

as a simple form of submersible vessel to transport divers underwater and to provide a temporary base and retrieval system in the depths;
as a land, ship or offshore platform-based hyperbaric chamber or system, to artificially reproduce the hyperbaric conditions under the sea. Internal pressures above normal atmospheric pressure are provided for diving-related applications such as saturation diving and diver decompression, and non-diving medical applications such as hyperbaric medicine.

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  1. M

    Why dont neutral particles in a bubble chamber leave tracks?

    Even if they have kinetic energy, neutral particles don't leave tracks behind. Why is that so? Also, can someone please explain how a cloud chamber works? Thanks!
  2. N

    Vacuum Chamber Suction Pressure: -100 Kpa or 0 Kpa?

    This is NOT a "problem", it's a rather a question. Let's say I've got a vacuum chamber, and I suck the air out of it using a vacuum pump that is capable of doing -200 Kpa. Let's also say that there is a valve on this chamber. After a full vacuum has reached, I open this valve WHILE the pump is...
  3. M

    Creating a Mini Self-Sustaining Star: The Superstrong Chamber Experiment

    If someone had a superstrong chamber that could withstand anything (hypothetically) if they constantlty fed the correct materials at the correct state into the chamber could they create a mini self sustaining star?
  4. D

    Why particles in a bubble chamber seam to disappear?

    are antimatter particles the explanation for why particles in a bubble chamber seam to disappear? I've read some on antimatter and supposedly some of it's been contained, how do they know what they have is antimatter? so many things theyre all confusing
  5. D

    Pressure vessel test chamber problem

    I have to design a chamber where a range of small pressure vessels can be safely pressure tested. They range up to around 10 litres in capacity and are tested at 45 barg. The vessel is a thick wall tube with two domed end caps welded construction. I would like some guidance on how to calculate...
  6. D

    How Does an Electron Move in a Magnetic Field Within a Cloud Chamber?

    An electron enters a cloud chamber which has a magnetic field B but the path of the electron is not perpendicular to the magnetic field. I understand that the electron path will describe a spiral. Does the v in the equation F = q(v x B) refer to the component of the electron's velocity which is...
  7. C

    Ionisation chamber - doubt about current nature and residue

    Homework Statement This is from Advanced Physics by Adams and Allday, section 8, practice exam questions, question 25. An α-source with an activity of 150 kBq is placed in a metal can. A 100 V d.c. source and a 109 Ώ resistor are connected in series to the can and the source. This...
  8. S

    Calculating Force on Chamber in Water Flow

    Homework Statement A chamber has water entering horizontally with a velcoity of 80m/s with an inlet of an area of 0.1m^ and leaving through an opening of area 0.15m^2. The exiting flow makes an angle of 30 degrees with respect to the entering flow. What force is needed to hold the chamber in...
  9. S

    Electron double slit experiment in bubble chamber

    We will not get an interference right? Why? Because the electron interacts with the system? Or the "measurement" forces the wave function to collapse? What if we put a black cloth on the chamber and only see the photographic film? What if we place the chamber before the slits. What if we bring...
  10. S

    View Windows on a Combustion Chamber

    Does anyone have view windows which they installed on their combustion chamber? My team and I are going to install quartz windows on 304 stainless steel, and so far the coefficients of thermal expansion look really different. We are also debating on the shape of the windows. Any hints would...
  11. K

    How Can I Build a High-Pressure Chamber for Chemical Reactions at Home?

    Hello! I was wondering how I could make a pressure chamber to aid some chemical reactions? The higher the pressure I'd be able to put into the better, although I am not really concerned as I don't particually have anything in mind. I'd probably like to be able to heat it up a bit - if the...
  12. F

    Rocket Engine Combustion Chamber Equations

    Good evening all, I was wondering if anyone would be able to point me in the right direction to equations in regards to designing a proper combustion chamber for a rocket engine, as well as for the throat/De Laval nozzle as well. I've looked around and I can't seem to find anything that...
  13. C

    Creating a heated Vacuum chamber.

    Not sure whether this would be better in materials or mechanical. I'm building a vacuum chamber which is going to house silica gel, I've got a prototype made out of PVC, but I'm afraid of running it up to 180-200 deg F to regenerate the silica. For the large scale I'm going to need to build a...
  14. H

    Exploring High-Energy Cosmic Rays: The Potential of an Orbiting Cloud Chamber

    I've read that cosmic rays are far higher energy than those generated in manmade particle accelerators. Would it be worthwhile to build an orbiting cloud chamber to collect cosmic rays before they impact the Earth's atmosphere? Or would the collision rate be too low to provide statistically...
  15. H

    What is the Difference Between a Microwave Cavity and Chamber?

    hi , I am confused with these two terms microwave cavity and microwave chamber . Some say that the microwave chamber inside which food gets cooked acts like a resonant cavity ( which I believe is not true ) because resonance must best be avoided inside the chamber .Resonance I think...
  16. B

    Can Methylated Spirits and Liquid Nitrogen Work for a Cloud Chamber?

    Hi, I'm attempting to make a condensation cloud chamber to display alpha and beta particle tracks to a class of school kids as part of my placement. I get how it all works but I'm having real trouble with two things... 1) Finding a source of high purity alcohol. 2) Getting hold of...
  17. magi

    Wood fire in compressed air chamber?

    Hi. What happends when i put fire to wood that I have in a chamber with a pressure of about 15 kg/cm2 = 14.710 Bar = 213,3 Psi. Will it burn as usuall or much faster? Will I get a very high pressure? How High pressure can I get? Magi
  18. A

    Pressure inside a chamber with a piston

    :mad:Homework Statement A vertical cylinder of cross-sectional area .07 m^2 is fitted with a tight-fitting, frictionless piston of mass 30 kg. The acceleration of gravity is 9.8 m/s^s. If there are 1 mol of an ideal gas in the cylinder at 395 K, find the pressure inside the cylinder. (Assume...
  19. B

    Compressed Chamber: Perfect Vacuum, Pull Apart?

    Just thinking here. What would happen if you had two pieces of something that connect perfectly and form a chamber of air inside. Then you took all the air out to make a perfect vacuum. Now if you were to pull the sides would it break apart. I don't understand how there would be a perfect...
  20. Simfish

    Dennett and his Echo Chamber Hypothesis

    Sweet Dreams pg. 168-170 "Episodic memory is not for free. One idea is that it is the very echoic power that makes episodic memory possible. Animals remember thanks to multiple repetitions of stimuli in the world. We remember, it seems, one-shot, but really, it isn't just one-shot. What we...
  21. W

    What could be causing my cloud chamber experiment to fail?

    I'm conducting a cloud chamber experiment using: Jar (black lid) Felt(black) Methylated Spirits (96% ethanol) Water Cobalt 60 Dry Ice Concentration about 50-50 with the spirits and water then soaked the felt. Using a projector which produces heat to main a temperature gradient. So far...
  22. A

    In what ways can a cloud chamber be built without relying on dry ice?

    I want to build a cloud chamber. I have tried one approach for which I found directions online. Unfortunately it didn't work out for me. In short, I used an empty pickle jar with felt glued into the bottom of the jar. I poured in 91% Isopropyl alcohol to saturate the felt. I screwed the...
  23. E

    Exploring Wavefunctions in Cloud Chamber Experiments

    On a recent thread about cloud chambers, a question popped into my head. My knowledge of cloud chambers is that one can see the "path" of certain elementary particles as they pass through the chamber. If, say, we had an electron passing through the chamber, do we have to assume that the...
  24. D

    Particles Making Path in Smoke Chamber

    I was talking to a friend the other day and they were telling me about some smoke chamber device. Apparently a 10 gallon chamber can be filled with smoke and some kind of "ray" would pass through the chamber and carve out a path in the smoke. Does anyone know anything about this? Do you...
  25. W

    Streamer Chamber Particle Detector Info

    hi there, can someone tell me where can i get a good information for a Streamer Chamber particle detector, i'd tried googling and still can't find a good one for my assignment. thanks in advance :smile:
  26. A

    120 GPa Just what kind of a chamber can take that pressure?

    Ok, according to Wikipedia, Tetraoxygen forms at 20 GPa and turns into a metallic form at 96 GPa. Elsewhere on the web I read that (someone) has tested this solid oxygen at up to 120 GPa which is over 17 million PSI! So what kind of container would you need to hold that together? How thick...
  27. B

    What is the placement of the spark plug in an L head combustion chamber?

    hey guys , i am studying about the old combustion chambers. i came across the L head combustion chamber and am confused about the exact position of the spark plug.so please help me out of this.
  28. K

    Evacuatred chamber pressure question

    I've been working on this question for quite a while and I've tried several methods with no success. I am no where near confident in my method and I was wondering if someone could point me in the right direction. The question is: A 16.5 cm diameter circular cover is placed over a 8.0 cm...
  29. G

    Wilson Cloud Chamber: Radiation Detection & Build Tips

    Hello everyone, in the 1910's Wilson build the very first cloud chamber based on watervapour and adiabatic decompression. With this device you can see radiation from radioactive materials and cosmic rays. For a description see...
  30. S

    Watch a Wilson Cloud Chamber Video for Homework

    Does anybody know where I would be able to view a video of a wilson cloud chamber being used? I need to view one for homework. cheers
  31. R

    Centrifugal force for supporting vacuum chamber walls?

    My aerospace application requires a very lightweight vacuum chamber. Could you rotate a cylindrical chamber about its vertical axis to provide outward pressure to support the pressure of the air? How fast would it have to rotate to provide an outward pressure of 15 lbs./sq. in.? The initial...
  32. J

    Bubble chamber experiment help

    For this experiment, you don't have to go into the lab. I thought it would be a breeze but I was wrong. The problem I'm having is collecting the data. The figures given are to be used to find the data but I don't know what I'm looking at and how to find the tan planes. Is there someway to...
  33. C

    How can I easily build a cloud chamber for a physics project?

    So I need to build a cloud chamber for a physics project and I have no idea where to start. I need it to be simple but not too simple so that it actually looked like I put some effort into it. Any help would be greatly greatly appreciated. I am very very desperate.
  34. F

    Measuring Temperature in a Pressure Chamber: Tips and Techniques

    I've encountered a problem designing an experiment. How is it that the temperature of a closed pressurized container/ pressure chamber can be measured using a thermocouple. Also, in the experiment, the temperature of the air in the chamber has to be varied. How can that be carried out? Where...
  35. G

    Why don't neutral particles leave tracks in the bubble chamber?

    Why don't neutral particles leave tracks in the bubble chamber? How is the bubble formed, is it condensation around ionised hydrogen, or around the particles?
  36. J

    Estimating Collision Time: A Helium-Filled Chamber at 4x10-11Pa

    i don't know how to do this...nothing comes to mind. any help will be appreciated! A pressure as low as 4×10-11Pa has been obtained. Suppose a chamber contains helium at this pressure and at temperature 380K. Estimate the collision time (tau) for helium in the chamber. Take the diameter of...
  37. M

    Comparing Reverberation Chamber Standards: SAE J1113/27, GM 9120P, etc.

    Hi, does anyone know anything about reverberation chambers? specifically does anyone know about the industry standards, a camparason between SAE J1113/27 GM 9120P GM 3100GS GM 9114P or any other standards which allow for a 2 -> 3Ghz operation would be helpful, thanks
  38. A

    Heating a Small Quantity: Ideas & Solutions

    I need to melt a small quantity (probably less than a cubic centimeter) of a substance at around 200°C in the most uniform way possible and I'd like to have your ideas about how to heat it. Using easily accessible stuff would be better. I've thought of controlling a soldering iron with a...
  39. O

    Simulating Hydrogen diffusion out of a chamber (in air)

    Hello, I've a fysical problem. A small container (about 10x10x15cm) has a source which releases hydrogen at a small rate. The container has an small oppening 30mm^2. The question is how fast does the hydrogen diffuse to the outside of the container. I've made simmulation (see...
  40. F

    Time projection chamber and energy

    Hi all ! I'm currently studying time projection chambers and I am wondering how the energy of the incident particle (the one that ionizes the gas in the drift chamber) is calculated from the measured signals. Does anyone have some hints for me ? Thanks a lot for your answers. Best regards
  41. R

    Bubble Chamber Photos: Find High Quality Images

    Does anyone know where to find some high quality bubble chamber photos? Any information would be appreciated.
  42. T

    End Capital Punishment: A Government Has No Right to Execute Citizens

    And we call ourselves "civilized". I say get rid of all of them. A Government has no business executing its' Citizens, for any reason.
  43. A

    Build Your Own Cloud Chamber for Particle Detection

    [?] I'm thinking of building a simple cloud chamber in order to detect small particles such as muons, neutrinos, and the like. I have read some handbooks but I would be grateful if someone could lend me a hand by providing some instructions. I only have three months to prepare this so I need the...
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