Sudhir Kumar

发表

Characterizing the influence of detector density on dosimeter response in non-equilibrium small photon fields

John D Fenwick, Alison J D Scott, A. Nahum, 2012, Physics in medicine and biology.

Matrix corrections for quantitative determination of trace elements in biological samples using energy-dispersive X-ray fluorescence spectrometry

M. L. Garg, P. Mangal, P. N. Trehan, 1989 .

Evaluation of scatter contribution and distance error by iterative methods for strength determination of HDR 192Ir brachytherapy source.

Y. S. Mayya, Sudhir Kumar, S. Sharma, 2010, Medical dosimetry : official journal of the American Association of Medical Dosimetrists.

Establishment of air kerma reference standard for low dose rate Cs‐137 brachytherapy sources

Sudhir Kumar, S. Sharma, P. Srinivasan, 2011, Journal of applied clinical medical physics.

A simplified analytical approach to estimate the parameters required for strength determination of HDR 192Ir brachytherapy sources using a Farmer-type ionization chamber.

Y. S. Mayya, S. Sharma, Sudhir Kumar, 2012, Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine.

Breakdown of Bragg–Gray behaviour for low-density detectors under electronic disequilibrium conditions in small megavoltage photon fields

A. Nahum, J. Fenwick, D. Deshpande, 2015, Physics in medicine and biology.

Density compensated diodes for small field dosimetry: comprehensive testing and implications for design

C. Rowbottom, G. Georgiou, M. Hill, 2020, Physics in medicine and biology.

Dosimetric response of variable-size cavities in photon-irradiated media and the behaviour of the Spencer–Attix cavity integral with increasing Δ

A. Nahum, D. Deshpande, Sudhir Kumar, 2016, Physics in medicine and biology.

Secondary bremsstrahlung and the energy-conservation aspects of kerma in photon-irradiated media

A. Nahum, Sudhir Kumar, 2016, Physics in medicine and biology.

Elemental analysis of environmental samples using energy dispersive X-ray fluorescence technique

P. Mangal, P. N. Trehan, N. Singh, 1989 .

Study of uranium contamination of ground water in Punjab state in India using X-ray fluorescence technique

J. S. Shahi, N. Singh, Aditya Bhalla, 2012, Journal of Radioanalytical and Nuclear Chemistry.

Dosimetric comparison of linear accelerator-based stereotactic radiosurgery systems

S. Sharma, B. Bhatt, Sudhir Kumar, 2007, Journal of medical physics.

L x-ray fluorescence cross section and relative intensity measurements for Hf, Re, Ir, Pt and Pb in the energy range 15-60 keV

P. Mangal, P. N. Trehan, N. Singh, 1989 .

Measurement of L X-ray fluorescence cross sections and relative intensities for elements 56⩽Z⩽66 in the energy range 11-41 keV

P. Mangal, P. N. Trehan, Sukhjinderjit Singh, 1987 .

Measurement of K X‐ray fluorescence cross‐sections for some elements with 23 ≤ Z ≤ 55 in the energy range 8–60 kev

P. Mangal, P. N. Trehan, N. Singh, 1987 .

Measurement of photon-induced L X-ray fluorescence cross sections and relative intensities for Tm, Lu, Th and U in the energy range 15-60 keV

P. Mangal, P. N. Trehan, Sukhjinderjit Singh, 1987 .

Measurement of photo-induced L X-ray fluorescence cross sections for Ta, W, Au, Tl and Bi in the 15-60 keV energy range

P. Mangal, P. N. Trehan, Sudhir Kumar, 1985 .

Energy dependence of photon‐induced Kα and Kβ x‐ray fluorescence cross‐sections for some elements with 20 ≤ Z ≤ 56

P. Mangal, P. N. Trehan, Sudhir Kumar, 1985 .

Estimation of distance error by fuzzy set theory required for strength determination of HDR 192Ir brachytherapy sources

S. Sharma, Sudhir Kumar, D. Sharma, 2014, Journal of medical physics.

Using cavity theory to describe the dependence on detector density of dosimeter response in non-equilibrium small fields

John D Fenwick, Alison J D Scott, A. Nahum, 2013, Physics in medicine and biology.

Corrigendum: Monte-Carlo-derived insights into dose-kerma-collision kerma inter-relationships for 50 keV–25 MeV photon beams in water, aluminium and copper (2015 Phys. Med. Biol. 60 501–19)

A. Nahum, D. Deshpande, Sudhir Kumar, 2015 .

Monte-Carlo-derived insights into dose–kerma–collision kerma inter-relationships for 50 keV–25 MeV photon beams in water, aluminum and copper

A. Nahum, D. Deshpande, Sudhir Kumar, 2015, Physics in medicine and biology.

The elimination of an artifact in the FLURZnrc-derived electron-fluence spectrum close to the Spencer-Attix-Nahum cut-off Δ

A. Nahum, Sudhir Kumar, B. K. Sapra, 2023, Physics in Medicine and Biology.

Monte-Carlo-computed dose, kerma and fluence distributions in heterogeneous slab geometries irradiated by small megavoltage photon fields

I. Chetty, A. Nahum, Sudhir Kumar, 2020, Physics in medicine and biology.

Origins of the changing detector response in small megavoltage photon radiation fields

C. Rowbottom, A. Nahum, G. Georgiou, 2018, Physics in medicine and biology.

Using cavity theory to describe the dependence on detector density of dosimeter response in non-equilibrium small fields

A. Nahum, J. Fenwick, Sudhir Kumar, 2013, Physics in medicine and biology.