Hello We used 201 Thallium in our nuclear medicine department to study the perfusion of the heart.The energy emission of radioactive thallium is about 80 eV. Now we have a technetium based radiopharmacon which gives a better image quality.( 140eV) The amounts of thallium we used was about a few nanograms. Therefore you can inject it in a patient beacuse in this concentration it is not toxic.The amount I used for this experiment is 1% of the amount we inject into a patient. Peter
----- Original Message ----- From: "Jones Beene" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, December 02, 2004 3:51 PM Subject: Re: comments on the Cirillo paper > ----- Original Message ----- > From: "P.J van Noorden" > > > It was very interesting to see that during evaporation a > significant amount > > (25%) of the radioactive Thallium could be found in the > second vessel, > > where you only would expect destillated water. So I > suspect that during > > violent boiling of the electrolyte a significant amount of > small dropplets > > liquid water ( with radioactive Tl ) was transported > through the condensor > > into the second vessel. This could lead to a significant > overestimation of > > the produced heat by about 25 % > > Well, first a caveat - it should be mentioned for the > benefit of any younger readers contemplating CF experiments, > that it takes a knowledgeable researcher to experiment with > thallium (a.k.a. rat poison), which some chemists believe to > be among the most toxic in the periodic table... and that is > the less-radioactive variety. Thallium does occurs in the > environment naturally in trace amounts; and is responsible > for many more deaths than is commonly known because the > human body absorbs thallium very effectively, especially > through the skin, lungs and the digestive tract. Just > touching it can be dangerous. > > .... but as to the unusual "transport mechanism" (if it did > indeed cross a metal boundary) this anomaly seems to be > similar to what has been witnessed over the years with > Bismuth, which is a similar heavy metal in many ways and > which was the subject of messages last month (below)... it > would be enlightening to understand the dynamics of this > transport mechanism, and whether or not it is somehow > related to gravity, but there appears to be little reliable > information available. > > Nick Reiter wrote: > > > It [bismuth] also was or is one of > > the most promising stars in the odd half integer spin > > nucleon kinemassic gravity claims of Wallace, > > RC Macaulay wrote: > > > Once knew a man that spent his days during WW2 on > > the Manhattan project that remained puzzled by bismuth. > Such an > > oddity that he considered the element unexplainable. > > (which may have been mentioned in the Rhodes book on the > Manhattan project), I remember hearing about some definite > "peculiarities" concerning bismuth during the LMBR and MSR > (liquid metal and salt cooled reactors) days at Oak Ridge in > the > 60s... the problem was "containment" of the molten bismuth. > It seem that you can have a bismuth alloy or eutectic in a > *sealed* > circuit - completely encased in SS tubing... but > miraculously > it will somehow "seep" through metal and appear in the > adjoining circuit - > > Jones > > > > >
