Most recent work utilises the ICRP Adult male and female voxel phantoms, a wide range of scanners and operating characteristics, and the application of ICRP Report 103 weighting factors.

The work is documented in the following papers:

Shrimpton PC, Jansen JT, Harrison JD.
Updated estimates of typical effective doses for common CT examinations in the UK following the 2011 national review.
Br J Radiol. 2016;89(1057):20150346. doi: 10.1259/bjr.20150346. Epub 2015 Nov 6.

Jan TM Jansen and Paul C Shrimpton.
Development of Monte Carlo simulations to provide scanner-specific organ dose coefficients for contemporary CT.
Physics in Medicine and Biology, 2016 Jul 21;61(14):5356-77. doi: 10.1088/0031-9155/61/14/5356. Epub 2016 Jun 30.

Jan TM Jansen, Paul C Shrimpton, John Holroyd and Sue Edyvean.
Selection of bone dosimetry models for application in Monte Carlo simulations to provide CT scanner-specific organ dose coefficients.
Physics in Medicine and Biology, 2018 Jun 19;63(12):125015. doi: 10.1088/1361-6560/aac717.

Jan TM Jansen, Paul C Shrimpton and Sue Edyvean.
CT scanner-specific organ dose coefficients generated by Monte Carlo calculation for the ICRP adult male and female reference computational phantoms.
Physics in Medicine and Biology, 2022 Nov 16;67(22). doi: 10.1088/1361-6560/ac9e3d.

Jan TM Jansen, Paul C Shrimpton, and Sue Edyvean.
Development of a generalized method to allow the estimation of doses to the ICRP reference adults from CT, on the basis of normalized organ and CTDI dose data determined by Monte Carlo calculation for a range of contemporary scanners.
Physics in Medicine and Biology, 68 (2023) 035022. doi;10.1088/1361-6560/acb2a8.