Gamma Calculator Pro

4.4
105 reviews
5K+
Downloads
Content rating
Everyone
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About this app

Save time with this exposure calculator for Iridium-192, Selinium-75 and Cobalt-60 sources.

==> Pro version includes Barricade calculation for 2mR and 100Mr distance.

No more need to calculate the formula or use of the "old-school plastic calculator"

Simply fill in the thickness, activity(in Curies) and source-film-distance and you get the correct exposure time.

R factor for different densities and film types.
Updated on
Mar 4, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.4
103 reviews
The Steve
August 10, 2021
The app is incredibly useful. But is there any way you could add in Copper, Cast Iron, Concrete and Stainless Steel for different material types? In my neck of the woods, we deal with each of these different material types as well as the ones you have already. If you could get that going, this app would be my go-to. Hands down
2 people found this review helpful
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Brandon Roesler
January 30, 2022
I'd like to start off by saying I still use and prefer my slide rule,,, but,,, I must admit, this is a great alternative. Accurate, User Friendly Interface, Customizable Settings based on individual preferences.. Well Done all around Guys. Thanks
1 person found this review helpful
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Klwinkel.com
February 9, 2022
Thank you! Yes agreed, it's important to know how to use the slide rule and not blindly using this app.
Ryan Thorne
September 8, 2023
Great for internal shots, definetly has its application in the field for some quick easy shot times. A little iffy on contact shots but that can be cross referenced with your own charts on shot times
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What's new

New materials added:

Aluminum
Titanium
Copper
Zinc
Brass
Inconel X
Zirconium
Uranium