Re: effective dose info needed

[photcoef <photcoef@tiac.net>]

One PC-program that calculates organ doses is PHOTCOEF. Look it up at

http://www.photcoef.com

This is a semiempirical program, runs much faster than Monte Carlo programs,
but has comparable accuracy.

It accepts X-ray spectra as input and calcualtes doses at any depth
(including skin dose). You have to model your own "exposed object". Nuclear
data (cross sections, densities) of organic compounds, including human
tissues, are provided by PHOTCOEF.

L.M. Kehler
AIC SOFTWARE, Inc.
P.O. Box 544
Grafton, MA 01519
USA
Tel: 508-839-6779
Fax: 508-839-4853

At 11:50 AM 10/29/97 -0600, you wrote:
>Organ doses due to X-ray examinations were calculated by 
>Jones and Wall and published by National Radiological Protection Board 
>(Jones D.G., Wall B.F. Organ doses from medical X-ray examinations 
>calculated using Monte Carlo techniques. NRPB, Chilton, 1985). The 
>results are for adults only. Look at the NRPB server  -
>http://www.nrpb.org.uk
>
>Numerous Monte Carlo calculations were carried out in 80-ths in Russia.
>We used math phantoms  of 0, 1, 5, 10, 15 years old and adults and 
>calculated the organ doses  in active bone marrow, lungs, breast, 
>thyroid, testes, ovaries, stomach, liver and pancreas - and effective 
>dose equivalent. Some measurements were performed in Alderson Rando
> and bone-paraffin phantoms with TLD. All results were published in two 
>handbooks (R.V.Stavitsky et. al. Doses for children due to X-ray 
>examinations. Kabur Publisher, 1993, Moscow, 164pp and 
>R.V.Stavitsky et. al. Radiation protection in medical roentgenology. 
>Kabur Publisher, 1994, Moscow, 272pp). Its contain detail organ 
>dose tables, unfortunately, in Russian.
>
>A few years ago I integrated these results in a computer program (X-Dose)
> to find, normalize, save and print organ doses. It contains the organ
>doses
> for about 600 combinations "procedure - projection - area - high voltage".
> You can download a preliminary MS DOS version of the program from 
>my WWW home page (http://www.orc.ru/~vnvasil). Now more flexible
> Windows version is available. Again, this program is in Russian, because 
>no interest outside former USSR was found.
>
>And the last, a part of dose data was incorporated in hardware. 
>One Russian small company produces the INDOR-S device. It can be 
>connected to X-ray machine, reads anode current and time, calculates 
>the effective dose equivalent (not organ doses) on the base of data in 
>the ROM and shows the result in digital panel.
>
>If you need detail, please, contact me.
>
>Vladimir Vasiliev
>Dosimetry Research Lab, MRID&S, Moscow, Russia
>vnvasil@orc.ru
>
>
>