Photoactivation ratios for specification of high-energy x-ray quality: part II, 4-15-MV x rays.

Medical physics (1977-01-01)
R J Schulz, R Nath
PMID840187
RESUMO

A sensitive and relatively simple method for obtaining an index of the spectral quality of x rays in the 4-15-MV range is presented. The method is based upon the simultaneous production of 115mIn by inelastic scattering of x rays by an indium foil and the production of 116mIn by neutron capture, where the neutrons are obtained from the photodisintegration of deuterium. Since the cross sections for the production of 115mIn and 116mIn have markedly different energy response functions, the ratio of radioactivities is very sensitive to the incident x-ray spectrum. Using a detector consisting of an indium foil sandwiched between two plastic bottles of D2O, photoactivation ratios (PAR) have been measured for 4-, 6-, and 10-MV x rays. It is shown that the PAR method offers a sensitive and practical means for quality control of x-ray spectra and comparison of high-energy accelerators.

MATERIAIS
Número do produto
Marca
Descrição do produto

Indium, foil, not light tested, 50x50mm, thickness 0.0025mm, temporary acrylic support, 99.8%
Indium, foil, 100x100mm, thickness 0.25mm, as rolled, 99.999%
Indium, foil, 50x50mm, thickness 0.5mm, as rolled, 99.999%
Indium, foil, 6mm disks, thickness 0.1mm, as rolled, 100%
Indium, foil, 6mm disks, thickness 0.20mm, as rolled, 100%
Indium, foil, 6mm disks, thickness 0.25mm, as rolled, 100%
Indium, foil, 6mm disks, thickness 0.5mm, as rolled, 100%
Indium, foil, 6mm disks, thickness 0.75mm, as rolled, 100%
Indium, foil, 6mm disks, thickness 1.0mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.0125mm, temporary acrylic support, 99.8%
Indium, foil, 8mm disks, thickness 0.015mm, 99.8%
Indium, foil, 8mm disks, thickness 0.01mm, 99.8%
Indium, foil, 8mm disks, thickness 0.025mm, 99.8%
Indium, foil, 8mm disks, thickness 0.02mm, 99.8%
Indium, foil, 8mm disks, thickness 0.03mm, 99.8%
Indium, foil, 8mm disks, thickness 0.04mm, 99.8%
Indium, foil, 8mm disks, thickness 0.05mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.075mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.125mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.1mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.20mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.25mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.5mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 0.75mm, as rolled, 100%
Indium, foil, 8mm disks, thickness 1.0mm, as rolled, 100%
Indium, foil, light tested, 100x100mm, thickness 0.075mm, as rolled, 100%
Indium, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 100%
Indium, foil, light tested, 25x25mm, thickness 0.075mm, as rolled, 100%
Indium, foil, light tested, 50x50mm, thickness 0.05mm, as rolled, 100%
Indium, foil, not light tested, 100x100mm, thickness 0.006mm, temporary acrylic support, 99.8%

Redes sociais

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

Merck

Pesquisa. Desenvolvimento. Produção.

Somos um fornecedor global líder para o setor de ciências biológicas, com soluções e serviços para pesquisa, desenvolvimento e produção de biotecnologia, além de produção e desenvolvimento de terapias farmacológicas com medicamentos.

© 2021 Merck KGaA, Darmstadt, Alemanha e/ou suas filiais. Todos os direitos reservados.

A reprodução não autorizada de quaisquer materiais deste site é estritamente proibida.