Energy dependence of effective atomic numbers for photon energy absorption and photon interaction: Studies of some biological molecules in the energy range 1 keV-20 MeV

Medical Physics

Volumn 35, Issue 1, 2008, Pages 388-402

  Manohara, S R ^a   Hanagodimath, S M ^a   Gerward, L ^b  

^a GULBARGA UNIVERSITY   (India)

^b TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

Author keywords

Absorbed dose; Carbohydrates; Effective atomic numbers; Fatty acids; Mass attenuation coefficient; Mass energy absorption coefficient; Nucleotide bases; Radiation therapy

Indexed keywords

CARBOHYDRATES; ENERGY ABSORPTION; FATTY ACIDS; LINOLEIC ACID; MOLECULES; NUCLEOTIDES; PALMITIC ACID; PHOTONS; RADIATION; RADIOTHERAPY;

ABSORBED DOSE; EFFECTIVE ATOMIC NUMBER; MASS ATTENUATION COEFFICIENTS; MASS ENERGY ABSORPTION; NUCLEOTIDE BASIS;

ATOMS;

CARBOHYDRATE; FATTY ACID;

ARTICLE; CALCULATION; ENERGY; ENERGY ABSORPTION; KINETICS; METHODOLOGY; MOLECULAR INTERACTION; MOLECULE; PHOTON; PRIORITY JOURNAL;

EID: 37549043190     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2815936     Document Type: Article

References (29)

1. J. H. Hubbell, " Photon mass attenuation and energy absorption coefficients from 1 keV to 20 MeV., " Int. J. Appl. Radiat. Isot. 0020-708X 10.1016/0020-708X(82)90248-4 33, 1269-1290 (1982).
2. J. H. Hubbell and S. M. Seltzer, "Tables of x-ray mass attenuation coefficients and mass energy absorption coefficients 1 keV to 20 MeV for elements Z=1 to 92 and 48 additional substances of dosimetric interest, NISTIR-5632," 1995.
3. G. J. Hine, " The effective atomic numbers of materials for various γ -ray interactions., " Phys. Rev. 85, 725 (1952). 0031-899X
4. D. F. Jackson and D. J. Hawkes, " X-ray attenuation coefficients of elements and mixtures., " Phys. Rep. 0370-1573 10.1016/0370-1573(81)90014-4 70, 169-233 (1981).
5. S. R. Manohara and S. M. Hanagodimath, " Studies on effective atomic numbers and electron densities of essential amino acids in the energy range 1 keV-100 GeV., " Nucl. Instrum. Methods Phys. Res. B 258, 321-328 (2007). 0168-583X
6. Shivaramu and V. Ramprasath, " Effective atomic numbers for photon energy absorption and energy dependence of some thermoluminescent dosimetric compounds., " Nucl. Instrum. Methods Phys. Res. B 168, 294-304 (2000). 0168-583X
7. R. C. Murty, " Effective atomic numbers of heterogeneous materials., " Nature (London) 207, 398-399 (1965). 0028-0836
8. O. elli, S. Erzeneoǧlu, H. Karahan, and G. Çankaya, " Effective atomic numbers for CoCuNi alloys using transmission experiments., " J. Quant. Spectrosc. Radiat. Transf. 91, 485-491 (2005). 0022-4073
9. N. G. Nayak, M. G. Vijaya, and K. Siddappa, " Effective atomic numbers of some polymers and other materials for photoelectric process at 59.54 keV., " Radiat. Phys. Chem. 61, 559-561 (2001). 0969-806X
10. Shivaramu, R. Amutha, and V. Ramprasath, "Effective atomic numbers and mass attenuation coefficients of some thermoluminescent dosimetric compounds for total photon interaction., " Nucl. Sci. Eng. 132, 148-153 (1999). 0029-5639
11. U. Çevik, H. Balta, A. Çelik, and E. Bacaksiz, " Determination of attenuation coefficients, thicknesses and effective atomic numbers for CuInSe2 semiconductor., " Nucl. Instrum. Methods Phys. Res. B 247, 173-179 (2006). 0168-583X
12. H. Balta, Çelika, U. Cevik, and E. Yanmaz, " Measurement of mass attenuation coefficients and effective atomic numbers for MgB2 superconductor using x-ray energies., " Radiat. Meas. 42, 55-60 (2007). 1350-4487
13. B. V. T. Rao, M. L. N. Raju, K. L. Narasimham, K. Parthasaradhi, and B. M. Rao " Interaction of low energy photons with biological materials and effective atomic numbers., " Med. Phys. 0094-2405 10.1118/1.595658 12, 745-748 (1985).
14. G. S. Bhandal and K. Singh, " Effective atomic number studies in different biological samples for partial and total photon interactions in the energy range 10-3 to 105 MeV., " Int. J. Appl. Radiat. Isot. 44, 505-510 (1993). 0020-708X
15. T. K. Kumar and K. V. Reddy, " Effective atomic number for materials of dosimetric interest., " Radiat. Phys. Chem. 50, 545-553 (1997). 0969-806X
16. Shivaramu, R. Vijayakumar, and L. Rajasekaran, " Effective atomic numbers for photon energy absorption of some low- Z substances of dosimetric interest., " Radiat. Phys. Chem. 62, 371-377 (2001). 0969-806X
17. Shivaramu, " Effective atomic numbers for photon energy absorption and photon attenuation of tissues from human organs., " Med. Dosim. 27, 1-9 (2002). 0958-3947
18. S. R. Manohara and S. M. Hanagodimath, " Effective atomic numbers for photon energy absorption of essential amino acids in the energy range 1 keV to 20 MeV., " Nucl. Instrum. Methods Phys. Res. B 264, 9-14 (2007). 0168-583X
19. V. Manjunathaguru and T. K. Umesh, " Effective atomic numbers and electron densities of some biologically important compounds containing H, C, N, and O in the energy range 145-1330 keV., " J. Phys. B 39, 3969-3981 (2006). 0022-3700
20. G. S. Bhandal, I. Ahmed, and K. Singh, " Determination of effective atomic number and electron density of some fatty acids by gamma-ray attenuation., " Appl. Radiat. Isot. 43, 1185-1188 (1992). 0969-8043
21. G. K. Sandhu, K. Singh, B. S. Lark, and L. Gerward, " Molar extinction coefficients of some fatty acids., " Radiat. Phys. Chem. 65, 211-215 (2002). 0969-806X
22. S. Gowda, S. Krishnaveni, and R. Gowda, " Studies on effective atomic numbers and electron densities in amino acids and sugars in the energy range 30-1333 keV., " Nucl. Instrum. Methods Phys. Res. B 239, 361-369 (2005). 0168-583X
23. J. H. Hubbell, " Review of photon interaction cross section data in medical and biological context., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/44/1/001 44, R1-R22 (1999).
24. D. Voet and J. G. Voet, Biochemistry, 2nd ed. (Wiley, London, 1995).
25. http://www.umm.edu/altmed/ConsSupplements/Omega3FattyAcidscs.html; http://goodfats.pamrotella.com/.
26. L. Gerward, N. Guilbert, K. B. Jensen, and H. Levring, " X-ray absorption in matter. Reengineering XCOM., " Radiat. Phys. Chem. 60, 23-24 (2001). 0969-806X
27. L. Gerward, N. Guilbert, K. B. Jensen, and H. Levring, " WinXCom-A program for calculating x-ray attenuation coefficients., " Radiat. Phys. Chem. 71, 653-654 (2004). 0969-806X
28. M. Singh, " Behaviour of gamma ray interactions in composite materials., " Ph.D. thesis, Pbi. Univ. Patiala, India, 1992.
29. F. S. Zavel'skii, " Mass attenuation coefficients of gamma radiations in soils and errors in measurements made by the gamma method., " At. Energy 16, 319-322 (1964). 1063-4258