Basic aspects of the mass absorption coefficient of beta-particles

Absorption of beta particles in different materials: an undergraduate experiment

“…This is expected, since electrons in the MeV range behave as minimum ionizing particles (MIP), and their specific energy loss dE/dξ is roughly the same for different materials when expressed in MeV g −1 cm 2 . Concerning the dependence of the mass absorption coefficients upon the atomic and mass number of the material, a Z 3/4 /A dependence has been discussed in [4], which predicts comparable values for Al and brass. In [3], the values of the mass absorption coefficients, measured over the entire range of atomic numbers with several beta sources (different end-point energies E), were parametrized as μ/ρ = A E −B , where the parameter B is practically constant and the parameter A increases about 20% between these two materials.…”

“…In the case of continuous spectra, as is the case for electrons from a radioactive beta source, a semiempirical relation between the mass absorption coefficient and the maximum electron energy was derived by Ram et al [3], following a set of measurements performed with electrons from several radioactive sources traversing different materials. A theoretical discussion of the mass absorption coefficients has been given in [4], with a comparison to available compilations and proposed parametrizations of data.…”

Farkli Ti̇pte Üreti̇len Harçlarin Yari-Değer Kalinliklarinin Teori̇k Olarak İncelenmesi̇

“…Gama ışınının soğurucu malzemeyi geçebilmesi gelen gama ışınının enerjisine bağlıdır. Hem gamma ışınları hem de diğer radyasyonlar için literatürde kütle soğurma katsayısı ile enerji arasındaki ilişkiyi [30][31][32][33][34] ve enerji ile soğurucu kalınlığı arasındaki ilişkiyi [35] incelemek için çeşitli çalışmalar bulunmakta ve bu çalışmalarda çeşitli düzeltme parametreleri kullanılmaktadır. Elde edilen bu yeni (13) denklemi ile herhangi bir düzeltme parametresine ihtiyaç duymadan deneysel ve teorik sonuçlar arasındaki uyumsuzluk giderilmeye çalışılmıştır.…”

The configurational backscattering of beta-particles

“…From experiments it follows that for beta particles the screening function can be expressed by only one screening parameter. 8 The term a I h/2 r~ p denotes the smallest angle of deflection given by: 6,9…”