[Isotope-prod] Cu-67 pricing

[Hari Areti]

Dear Pavel, 
Good points. Let is take a few minutes tomorrow and go over your ideas. 
We will have a short meeting tomorrow. It would be good to document 
our discussion. Thanks. 
-H 


From: "Pavel Degtiarenko" <pavel at jlab.org> 
To: "isotope-prod" <isotope-prod at jlab.org> 
Sent: Monday, February 27, 2017 10:17:47 AM 
Subject: Re: [Isotope-prod] Cu-67 pricing 

Dear All, 

I just wanted to mention that not all options of working with natural Ga are investigated and rejected. The final choice should be the result of the overall cost optimization, and weighting of all pluses and minuses - essentially that should be decided when the R&D is done, or during the R&D. 

Clearly natural Ga has the advantage of the price and the optimal size of the target as the result. On the other hand, Ga-71 is a clear winner for radiological purity and the "undesirables" production. There is however a gray area that's not investigated yet. Using natural Ga, and going up in energy from 18.5 MeV, we should find the beam energy at which the radiological purity is still "good enough", say, less than 1% of Cu-64 (by the way, is 10% of Cu-64 "good enough"?). At 18.5 MeV it's exact zero, and it's probably not necessary. 

The same type of the energy optimization question #2: at 18.5 MeV the production of the major undesirable isotope of Ga-67 is zero. At what energy its production becomes unacceptably high. What would be the unacceptably high level of Ga-67 production. I would argue that having that level at 2-5 times that of Cu-67 wouldn't be too bad and won't change the handling and separation procedures dramatically. But may be if it's even a factor of 100, that wouldn't be that bad either? Such limit should be investigated. 

When we find and verify these energies during the R&D stage, we should make the choice. May be we could run larger volume optimized natural Ga target at one of these optimal energies, and concentrate the design efforts on having a higher beam power, and thus keep the same production rates of Cu-67 with acceptable purity, using natural Ga. 

Best regards, 
Pavel 

On 2/27/2017 9:19 AM, Hari Areti wrote: 



99;8% isotopically pure GA-71 is $3.26/mg. 
-H 


From: "George Kharashvili" <georgek at jlab.org> 
To: "isotope-prod" <isotope-prod at jlab.org> 
Sent: Friday, February 24, 2017 1:37:14 PM 
Subject: [Isotope-prod] Cu-67 pricing 

Dear all, 

I requested a Cu-67 quote from Oak Ridge after our meeting yesterday. I was told that is is not currently available and may become available in a few months time, which is when they would give us an official quote. But they kindIy provided an estimate (not a quote) of $526.00 per mCi of Cu-67 with a $4,435.00 dispensing/Packaging/Shipment charger per order. 
Below are some details about what they offer for Cu-67. I would like to point out the radiopurity info: 60% activity being Cu-64! I believe this is where our method can be superior: using 40-50 MeV beam on Ga-71 target, we can end up with virtually no Cu-64 in our final product. 


-- 
George Kharashvili 
Jefferson Lab Radiation Control 
757-269-6435 

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