Detectors of Radioactive Emissions(Radioactivity-Nuclear)

RADIOACTIVITY-NUCLEAR

Cloud Chambers

Cloud Chamber is used to detect the tracks of the radiations. The tracks produced are in white colour. A cloud chamber is basically a plastic box which consists of two compartments. Dry ice is first put in the lower compartment to cool the lower region of the upper compartment.

Then the felt ring around the rim of the chamber is soaked with alcohol. When the alcohol vapour diffuses to the lower region of the upper compartment, it is cooled and ready to condense.

A layer of supersaturated vapour is formed at the lower region. A radioactive source is often placed in this region. When a radiation is emitted, it ionises the air molecules along its path, which provides a chance for the alcohol vapour to condense readily on the ions and forms white tracks in the chamber.

Each track shown in the chamber corresponds to the path of a radiation and the shape of the tracks characterises different types of radiations.

RADIOACTIVITY-NUCLEAR (Detectors of Radioactive Emissions)

Low point, again

Question: How can this committee encourage more strongly positive collaboration and engagement between the ministry and the children's representative?

Answer, from Lesley du Toit, deputy minister, Children and Families.
I can only reiterate that it has been our intention from the day that the representative arrived here, and it will continue to be our intention, and it is certainly built into our practice. We have built in systems, processes and various other mechanisms. I will ask Mark Sieben to talk to some of this, but it is our fundamental commitment to work together with anybody else who is committed to the children and families of this province. I will not accept that we will not do that.
What I was saying earlier on does not take away from the fact�. In fact, I was trying to emphasize that our job as two professional organizations committed to children across this province is to put our heads down � and sometimes, hopefully, together � and focus on the children of this province and figure out ways in which we can do that together.
I'm committed to doing that. My team is committed to doing that. We could spend probably the next hour or two explaining every possible process and mechanism that we've put into place to make sure that we honour that, including an interface unit which you, I think, have a report on in the package. It is fundamentally there to do nothing else but make sure that the representative gets what she needs to be successful in doing her job.
I want to make sure that everybody understands that that is our commitment, and I would like to ask Mark if he can add to that.