Re: specific activity

Dear Alberto,

Your explanation is what I suspected but wanted to make sure.

You are right that I need to document the number for WHAT(6) for interpreting the results.
That is the reason, I wrote the normalization as (volume * density/1000) - which is what I will enter for WHAT(6) -
instead of just a number for mass. I will add a comment as well.

Thank you for the explanation.
Mina

On 13-01-12 06:28 AM, Alberto Fasso' wrote:
> Hi Mina,
>
> WHAT(6) is just a number by which the final score is divided.
> It can be the volume of the region, or its mass, or whatever you like.
> What is important, is that you know what you put there, and interpret the
> results accordingly. I have used it sometimes to do the normalization
> to the actual source intensity. These are all things that you can do
> also by letting WHAT(6)=1 and doing the normalization by hand.
>
> Alberto
>
>
> On Fri, 11 Jan 2013, Mina Nozar wrote:
>
>> Hello everyone,
>>
>>
>> In the Resnuclei card, WHAT(6) represents volume of the region. So if I enter the volume of the region of interest, I
>> would get Activity/volume or Bq/cm^3. This is if I use DCYSCORE and DCYTIMES.
>>
>> Suppose I would like to have specific activity, i.e. Activity/mass or (Bq/kg).
>> I could leave WHAT(6) blank and do the normalization by mass during a post processing stage.
>> But I think I can do it here by entering (volume * density/1000) - with volume and density units in the cgs system - for
>> WHAT(6) instead of volume to get specific activity.
>> Am I right? If so, this could simplify things a bit.
>>
>>
>> Thanks and best wishes,
>> Mina
Received on Thu Jan 17 2013 - 09:28:06 CET