From 30944057a54090761ff6388df177ff5b86ba99d6 Mon Sep 17 00:00:00 2001 From: Diogo Almeida Date: Thu, 10 Jul 2025 11:55:16 +0100 Subject: [PATCH] add Ir_193 entry to AtmBlens Only current entry for Ir is natural abundance. Isotopically enriched samples with 193-Ir have been used for neutron scattering experiments to make use of lower absorption cross section with respect to natural abundance (e.g. https://doi.org/10.1039/D1TC02070F, https://doi.org/10.1039/D4CC06174H) Adding Ir_193 with scattering length and absorption cross section as determined by Hannon, Gibbs and Takagi (https://doi.org/10.1107/S1600576718006064). --- GSASII/atmdata.py | 1 + 1 file changed, 1 insertion(+) diff --git a/GSASII/atmdata.py b/GSASII/atmdata.py index 553c47f4b..4a1126b19 100644 --- a/GSASII/atmdata.py +++ b/GSASII/atmdata.py @@ -1379,6 +1379,7 @@ 'Re_': {'Mass':186.207,'SL':[ .92, 0],'SA': 89.7}, 'Os_': {'Mass': 190.2,'SL':[ 1.07, 0],'SA': 16.0}, 'Ir_': {'Mass': 192.22,'SL':[ 1.06, 0],'SA': 425.}, + 'Ir_193':{'Mass':192.963,'SL':[ 0.971, 0],'SA': 111.}, #Hannon, Gibbs, Takagi (2018) 10.1107/S1600576718006064 'Pt_': {'Mass': 195.09,'SL':[ .96, 0],'SA': 10.3}, 'Au_': {'Mass':196.967,'SL':[ .790, 0],'SA': 98.65}, 'Au_197':{'Mass':196.967,'SL':[ .790, 0],'SA': 98.65},