Mass attenuation coefficients, effective atomic numbers and effective electron densities for some polymers

被引：78

作者：

Kucuk, Nil ^{[1
]}

Cakir, Merve ^{[1
]}

Isitman, Nihat Ali ^{[2
]}

机构：

[1] Uludag Univ, Fac Arts & Sci, Dept Phys, TR-16059 Bursa, Turkey

[2] Middle E Tech Univ, Dept Met & Mat Engn, TR-06531 Ankara, Turkey

来源：

RADIATION PROTECTION DOSIMETRY | 2013年 / 153卷 / 01期

关键词：

GAMMA-RAY ATTENUATION; PHOTON ENERGY-ABSORPTION; FATTY-ACIDS; TRANSMISSION EXPERIMENTS; AMINO-ACIDS; W/CU ALLOY; REGION; SUPERCONDUCTOR; GLASSES; SEMICONDUCTORS;

D O I：

10.1093/rpd/ncs091

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, the total mass attenuation coefficients ((m)) for some homo- and hetero-chain polymers, namely polyamide-6 (PA-6), poly-methyl methacrylate (PMMA), low-density polyethylene (LDPE), polypropylene (PP) and polystyrene (PS) were measured at 59.5, 511, 661.6, 1173.2, 1274.5 and 1332.5 keV photon energies. The samples were separately irradiated with Am-241, Na-22, Cs-137 and Co-60 (638 kBq) radioactive gamma sources. The measurements were made by performing transmission experiments with a 2 ' 2 ' NaI(Tl) scintillation detector having an energy resolution of 7 at 662 keV gamma ray from the decay of Cs-137. The effective atomic numbers (Z(eff)) and the effective electron densities (N-eff) were determined experimentally and theoretically using the obtained (m) values for the investigated samples. Furthermore, Z(eff) and N-eff of each polymer were computed for total photon interaction cross-sections using theoretical data over a wide energy region from 1 keV to 10 MeV. The experimental values of the selected polymers were found to be in good agreement with the theoretical values.

引用

页码：127 / 134

页数：8

共 43 条

[1] Effective atomic and electron numbers of some steels at different energies [J].

Akkurt, Iskender .

ANNALS OF NUCLEAR ENERGY, 2009, 36 (11-12) :1702-1705

[2] Determination of the effective atomic numbers and electron densities for YBaCuO superconductor in the range 59.5-136 keV [J].

Baltas, H. ;

Cevik, U. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2008, 266 (07) :1127-1131

[3] Measurement of mass attenuation coefficients and effective atomic numbers for MgB2 superconductor using X-ray energies [J].

Baltas, H. ;

Celik, S. ;

Cevik, U. ;

Yanmaz, E. .

RADIATION MEASUREMENTS, 2007, 42 (01) :55-60

[4] Mass attenuation coefficients of YBaCuO and BiPbSrCaCuO superconductors at 511, 661 and 1274keV energies [J].

Baltas, H ;

Cevik, U ;

Tirasoglu, E ;

Ertugral, B ;

Apaydin, G ;

Kobya, AI .

RADIATION MEASUREMENTS, 2005, 39 (01) :33-37

[5]

BHANDAL GS, 1992, APPL RADIAT ISOTOPES, V43, P1185

[6] INFLUENCE OF THE CHEMICAL-COMPOSITION ON GAMMA-RAY ATTENUATION BY FATTY-ACIDS [J].

BHANDAL, GS ;

SINGH, K .

APPLIED RADIATION AND ISOTOPES, 1992, 43 (04) :517-526

[7] STUDY OF THE MASS ATTENUATION COEFFICIENTS AND EFFECTIVE ATOMIC NUMBERS IN SOME MULTIELEMENT MATERIALS [J].

BHANDAL, GS ;

SINGH, K .

APPLIED RADIATION AND ISOTOPES, 1993, 44 (06) :929-939

[8] Effective atomic numbers and electron densities of CuGaSe2 semiconductor in the energy range 6-511 keV [J].

Celik, A. ;

Cevik, U. ;

Bacaksiz, E. ;

Celik, N. .

X-RAY SPECTROMETRY, 2008, 37 (05) :490-494

[9] Effective atomic numbers and electron densities for CdSe and CdTe semiconductors [J].

Cevik, U. ;

Bacaksiz, E. ;

Damla, N. ;

Celik, A. .

RADIATION MEASUREMENTS, 2008, 43 (08) :1437-1442

[10] Measurement of the mass attenuation coefficients and electron densities for BiPbSrCaCuO superconductor at different energies [J].

Cevik, U. ;

Baltas, H. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 256 (02) :619-625

← 1 2 3 4 5 →