Welcome, Guest. Please login or register.
Amiga Kit Amiga Store Hollywood MAL AMIStore App Store A600 Memory

AuthorTopic: A dastardly X-ray puzzle....  (Read 1208 times)

0 Members and 1 Guest are viewing this topic.

Offline metalman

Re: A dastardly X-ray puzzle....
« Reply #15 on: August 12, 2005, 02:56:28 AM »
In geological analysis the object is to:

 measure the natural gamma radiation  
 bombard the formation with neutrons and measure % neutorns bounced back
bombard the formation with neutrons and measure the resulting gamma ray decay time
bombard the formation with neutrons and measure the resulting energy levels of the gamma ray of decay

The density source is lead shield (200 mCi Cesium 137}

The Chemical neutron sources (5.0 Curie, Am241Be) are in paraffin shields

The electrical neutron generators don't require shields (for transport!)
Neutron flux, 1E8 n/sec when on!
Lan astaslem
The Peacemaker
 

Offline X-ray

Re: A dastardly X-ray puzzle....
« Reply #16 on: August 12, 2005, 07:45:09 AM »
That's dangerous stuff there! The radiotherapy department has some Cobalt 60 units and a linear accelerator, but these are fixed units built into lead 'bunkers'. The mobile stuff is scary. A mate of mine was doing industrial radiography and he had to carry a mobile unit through some pipes at a refinery, to X-ray the welds for defects. He stopped doing that job when he learned that a colleague had found a defective unit had 'lost its source'  :-o

Nah, I'll stick to the more friendly radiation, thank you.
 

Offline bloodline

  • Master Sock Abuser
  • Hero Member
  • *****
  • Join Date: Mar 2002
  • Posts: 12113
  • Total likes: 0
    • http://www.troubled-mind.com
Re: A dastardly X-ray puzzle....
« Reply #17 on: August 12, 2005, 10:11:38 AM »
Quote

X-ray wrote:

Nah, I'll stick to the more friendly radiation, thank you.


Have you hugged your friendly radiation today?

Offline metalman

Re: A dastardly X-ray puzzle....
« Reply #18 on: August 15, 2005, 01:24:47 AM »
Quote

X-ray wrote:
That's dangerous stuff there! The radiotherapy department has some Cobalt 60 units and a linear accelerator, but these are fixed units built into lead 'bunkers'. The mobile stuff is scary. A mate of mine was doing industrial radiography and he had to carry a mobile unit through some pipes at a refinery, to X-ray the welds for defects. He stopped doing that job when he learned that a colleague had found a defective unit had 'lost its source'  :-o

Nah, I'll stick to the more friendly radiation, thank you.


welding and pipe inspectors typically use 8 milliCurie Cesium 137 and 40 milliCurie Am241Be source

For geological density logging, the source is a 1.4 to 2 Curie Cesium 137 or Cobalt 60 source

Time, distance, shielding!
Lan astaslem
The Peacemaker
 

Offline x56h34

Re: A dastardly X-ray puzzle....
« Reply #19 on: August 15, 2005, 09:46:59 PM »
Another idea! Swallow 50 pennies and one 10 cent piece. Who ever finds the 10 cent piece is the winner. :-)

Or better yet, swallow 50 pennies made in something like 1980 and one made in 2000, if you want it to be more difficult. ;-)
 

Offline X-ray

Re: A dastardly X-ray puzzle....
« Reply #20 on: August 15, 2005, 09:56:33 PM »
50 pennies  :-o
You and PMC trying to kill me or what?  :inquisitive:

Mind you, we have had our share of X-raying people who have ingested or otherwise 'concealed' items. Each radiographer has a mental list of their Top Five. Here's mine (all genuine):

1) Young man swallowed 27 scalpel blades.
2) Old fellow swallowed a large serving spoon
3) An enterprising guy managed to feed the curly cord between a telephone handset and the telephone base, into his bladder.
4) Young woman 'hid' a light bulb
5) Fellow 'hid' a fluorescent tube

As tempting as the pennies sound, I ain't going into anybody's Top Five  ;-)
 

Offline odin

  • Colonization had Galleons
  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 6796
  • Total likes: 0
Re: A dastardly X-ray puzzle....
« Reply #21 on: August 16, 2005, 12:21:16 PM »
How the hell does one end up stuffing wires into one's bladder :-o.

Imagine the light bulb shattering :nervous:.