Segrè Chart

[Mark Leach]

Hi All,

I have just come across the original Segrè Chart (1948), and I have stitched together a high resolution image.

https://digital.library.unt.edu/ark:/67531/metadc100789/m1/1/

If you want to explore the high res image or download it to your computer, click the link below and then click on the image:

https://www.meta-synthesis.com/webbook/35_pt/Segre_origional_large.png

Mark Leach

meta-synthesis

[Mario Rodriguez]

Hi Mark,

In case you’re interested, here’s what I know about how the Segrè chart has evolved.

Nuclear chemists began using the Nuclear Wallet Cards, where isotopes are organized by atomic number (Z) and, within each Z, by mass number (A). Each new edition incorporated newly discovered isotopes (essentially the nuclear-chemistry counterpart to adding new elements to the periodic table/spiral):

5th edition (1995): https://www.nndc.bnl.gov/walletcards/doc/wallet-cards-1995-07.pdf

6th edition (2000): https://www.nndc.bnl.gov/walletcards/doc/wallet-cards-2000-01.pdf

7th edition (2005): https://www.nndc.bnl.gov/walletcards/doc/wallet-cards-2005-04.pdf

8th edition (2011): https://www.nndc.bnl.gov/walletcards/doc/wallet-cards-large-2011-10.pdf

9th edition (2023, current): https://www.nndc.bnl.gov/walletcards/doc/wallet-cards-2023-10.pdf

Building on these and other datasets, the Segrè chart was updated in NuDat 2 (after the 7th edition) and in NuDat 3 (after the current 9th edition). I’ve attached both versions (you have to zoom in order to read each cell).

Best,

Mario Rodríguez Peña

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