Re-estimation of absolute gamma ray intensities of ⁵⁶Mn using k₀-standardization

Re-estimation of absolute gamma ray intensities of 56 Mn using k 0 -standardization 1 first-author 1 1 1 Physics Research Division, Pakistan Institute of Nuclear Science &Technology, P.O. Nilore, Islamabad, Pakistan Physics Research Division, Pakistan Institute of Nuclear Science &Technology, P.O. Nilore, Islamabad, Pakistan The thermal neutron capture gamma ray facility at Pakistan Research Reactor (PARR-1) is being used for the re-estimation of various properties like capture cross-sections, resonance integral, absolute gamma intensities, etc. of different isotopes. The data for gamma ray transitions from the capture of thermal neutrons by 55 Mn are not in good agreement specifically below 2 MeV. So there is a need to re-estimate its intensities with better accuracy. Analytical grade MnCl 2 powder and high purity Mn metal pieces were used in this study. Standard 152 Eu and 60 Co radioactive sources as well as thermal neutron capture γ-rays in chlorine were chosen for efficiency calibration. The k 0 standardization technique was applied for these measurements to eliminate systematic errors in efficiencies. Chlorine also acted as a comparator in k 0 - factor calculations. The results have been tabulated for the main gamma rays from 56 Mn in the low as well as in the medium energy regions. The absolute intensities are in good agreement with most of the reported values. Absolute intensities Prompt gamma rays k 0 -standardization Manganese-56 References Friendlander G , Kennedy J W , Macios E S , et al . Nucl. Radiochem , 3 rd Edition, John Wiley & Sons, Inc., USA , 1981 Nucl. Radiochem Zaidi J H , Arif M , Fatima I , et al . J Radioanal Nucl Chem , 1999 , 241 : 123 J Radioanal Nucl Chem Rajput M U , Ahmad M , Ahmad W . J Radioanal Nucl Chem , 2000 , 243 : 719 J Radioanal Nucl Chem Dokhale P A , Csikia J , Olak L . Appl Radiat Isot , 2001 , 54 : 967 Appl Radiat Isot Ahmad W , Ahmad M , Rajput M U . J Neutron Res , 2003 , 11 : 145 J Neutron Res Simonits A , De Corte F , Hoste J . J Radioanal Chem , 1975 , 24 : 31 J Radioanal Chem Acharya R N , Sudarshan K , Nair A G , et al . J Radioanal Nucl Chem , 2001 , 250 : 303 J Radioanal Nucl Chem Molnar G L , Belgya T , Dabolczi L , et al . J Radioanal Nucl Chem , 1997 , 215 : 111 J Radioanal Nucl Chem Molnar G L , Revay Zs , Paul R L , et al . J Radioanal Nucl Chem , 1998 , 234 : 21 J Radioanal Nucl Chem De Corte F , Simonits A , De Wispelaere A , et al . J Radioanal Nucl Chem , 1987 , 113 : 145 J Radioanal Nucl Chem Matsue H , Yenozowa C . J Radioanal Nucl Chem , 2001 , 249 : 11 J Radioanal Nucl Chem Knoll G F . Radiation Detection and Measurements , John Wiley & Sons. Inc. USA , 1979 : 131 Radiation Detection and Measurements Kawade K , Ezuka M , Yamomats H , et al . Nucl Instr Meth , 1981 , 190 : 101 Nucl Instr Meth IAEA-TECDOC-619, X-ray and γ-ray standard for detector calibration, IAEA-1991 Sudarshan K , Nair A G , Acharya R N , et al . Nucl Instr Meth , 2001 , A457 : 180 Nucl Instr Meth Reedy R S , Frankle S C . At Data Nucl Data Tables , 2002 , 80 ( 1 ): At Data Nucl Data Tables Ahamd M , Rajput M U , Ahmad W . The Nucleus , 1999 , 36 : 23 The Nucleus Satti M S . Prompt gamma-ray neutron activation analysis (PGNAA) of steel, M. Sc. Thesis , Univ. of Punjab , Lahore, PK , 2002 Prompt gamma-ray neutron activation analysis (PGNAA) of steel, M. Sc. Thesis Jamil K , Ali S , Ahmad M , et al . The Nucleus , 1999 , 36 : 31 The Nucleus Sajjad M . Neutron flux estimation at thermal neutron capture gamma ray facility of Pakistan Research Reactor (PARR-I), M. Sc. Thesis , Univ. of Punjab , Lahore, PK , 2002 Neutron flux estimation at thermal neutron capture gamma ray facility of Pakistan Research Reactor (PARR-I), M. Sc. Thesis Rajput M U , Ahmad M , Ahmad W . J Radioanal Nucl Chem , 2002 , 251 : 457 J Radioanal Nucl Chem Tahir M . Calibration of high purity germanium detector, M. Sc. Thesis , Univ. of Punjab , Lahore, PK , 2002 Calibration of high purity germanium detector, M. Sc. Thesis Paul R L , Lindstrom R M , Heald A . J Radioanal Nucl Chem , 1997 , 215 : 63 J Radioanal Nucl Chem Matsue H , Yonezawa C . J Radioanal Nucl Chem , 2000 , 245 : 189 J Radioanal Nucl Chem Mughabghab S F , Divadeeram M , Holden N E . Neurton Cross-sections , 1981 , 1-A : Neurton Cross-sections Vocke R D . Pure Appl Chem , 1999 , 71 : 1593 Pure Appl Chem Rosman K J R , Taylor P D P . Pure Appl Chem , 1998 , 70 : 217 Pure Appl Chem LANL Report LA-UR-01-4984 ( 2001 ) LANL Report LA-UR-01-4984 Lone M A , Leavitt R A , Harrison D A . At Data Nucl Data Tables , 1981 , 26 : 511 At Data Nucl Data Tables Van Asseche P H M , Baader H A , Koch H R , et al . Nucl Phys , 1971 , A160 : 367 Nucl Phys O571.42+1,O657.4 2005-03-25 2005-12-01 2021-01-19 2005 Nuclear Science and Techniques 06 16