Re: shielding methodologies

[Ted de Castro <tdc@xrayted.com>]

I use a spreadsheet method I developed that is consistant with the NCRP
49 tables.  

It works with ONE sheet per barrier ( a barrier changes when things like
orientation, occupancy factor, distance or some such change).  For any
given barrier it handles combinations of kVp, mA, Cine/Fluoro,
Direct/indirect, Rad/Fluoro.

It was presented in a poster at the San Jose meeting.

Spreadsheet and paper are available.

The paper fully explains the rational of the calculations.

I have used it for more than 20 years and find it quite handy.

Chris Alston wrote:
> 
> >Reply-To: Ken Harper <krharper@ANMC.ORG>
> >Organization: ACES-ANMC/ANTHC
> >
> >Time for a poll...which methodology (NCRP 49 v. Simpkin/Dixon) would you
> >use when determining shielding requirements for a new R/F room?   Whys
> >would also be welcome.
> >
> >Ken
> >
> >--
> >Kenneth R. Harper, DABR
> >Alaska Clinical Engineering Services
> >Alaska Native Medical Center
> >4931 Old Seward, Suite 107
> >Anchorage, AK 99503
> >907.729.2590 (v)
> >907.729.2569 (f)
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