Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations
The induced radioactivity concentrations of 41Ar, 13N, and 15O in air in 30 MeV proton accelerator vaults has been estimated using Fluka Monte Carlo simulations and National Council on Radiation Protection (NCRP) 144 based analytical methods. The results obtained by these methods are compared and di...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2017-01-01
|
| Series: | Radiation Protection and Environment |
| Subjects: | |
| Online Access: | http://www.rpe.org.in/article.asp?issn=0972-0464;year=2017;volume=40;issue=2;spage=84;epage=89;aulast=Keshavkumar |
| _version_ | 1811231715292610560 |
|---|---|
| author | Biju Keshavkumar S Anand Kapil Deo Singh Tapas Bandyopadhyay |
| author_facet | Biju Keshavkumar S Anand Kapil Deo Singh Tapas Bandyopadhyay |
| author_sort | Biju Keshavkumar |
| collection | DOAJ |
| description | The induced radioactivity concentrations of 41Ar, 13N, and 15O in air in 30 MeV proton accelerator vaults has been estimated using Fluka Monte Carlo simulations and National Council on Radiation Protection (NCRP) 144 based analytical methods. The results obtained by these methods are compared and discussed. It is found that analytical calculations using NCRP 144 guidelines underestimate the 41Ar concentrations about three times while 15O concentrations are overestimated about ten times when compared to Monte Carlo estimates. However, the 13N concentrations estimated by both the methods are found to be in good agreement. It is seen that the analytical calculations ignore the significantly large contribution of 41Ar formation by the neutrons above thermal energy. The overestimation of 15O is caused by the large cross-section value assigned in the analytical calculations. |
| first_indexed | 2024-04-12T10:49:40Z |
| format | Article |
| id | doaj.art-1131631edd194d15a29cfd1b09da61f2 |
| institution | Directory Open Access Journal |
| issn | 0972-0464 |
| language | English |
| last_indexed | 2024-04-12T10:49:40Z |
| publishDate | 2017-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Radiation Protection and Environment |
| spelling | doaj.art-1131631edd194d15a29cfd1b09da61f22022-12-22T03:36:16ZengWolters Kluwer Medknow PublicationsRadiation Protection and Environment0972-04642017-01-01402848910.4103/rpe.RPE_10_17Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculationsBiju KeshavkumarS AnandKapil Deo SinghTapas BandyopadhyayThe induced radioactivity concentrations of 41Ar, 13N, and 15O in air in 30 MeV proton accelerator vaults has been estimated using Fluka Monte Carlo simulations and National Council on Radiation Protection (NCRP) 144 based analytical methods. The results obtained by these methods are compared and discussed. It is found that analytical calculations using NCRP 144 guidelines underestimate the 41Ar concentrations about three times while 15O concentrations are overestimated about ten times when compared to Monte Carlo estimates. However, the 13N concentrations estimated by both the methods are found to be in good agreement. It is seen that the analytical calculations ignore the significantly large contribution of 41Ar formation by the neutrons above thermal energy. The overestimation of 15O is caused by the large cross-section value assigned in the analytical calculations.http://www.rpe.org.in/article.asp?issn=0972-0464;year=2017;volume=40;issue=2;spage=84;epage=89;aulast=Keshavkumar41ArFlukainduced air activityMonte Carlo |
| spellingShingle | Biju Keshavkumar S Anand Kapil Deo Singh Tapas Bandyopadhyay Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations Radiation Protection and Environment 41Ar Fluka induced air activity Monte Carlo |
| title | Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations |
| title_full | Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations |
| title_fullStr | Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations |
| title_full_unstemmed | Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations |
| title_short | Estimation of induced air activity in 30 MeV proton accelerator: Comparative study of Monte Carlo simulations and analytical calculations |
| title_sort | estimation of induced air activity in 30 mev proton accelerator comparative study of monte carlo simulations and analytical calculations |
| topic | 41Ar Fluka induced air activity Monte Carlo |
| url | http://www.rpe.org.in/article.asp?issn=0972-0464;year=2017;volume=40;issue=2;spage=84;epage=89;aulast=Keshavkumar |
| work_keys_str_mv | AT bijukeshavkumar estimationofinducedairactivityin30mevprotonacceleratorcomparativestudyofmontecarlosimulationsandanalyticalcalculations AT sanand estimationofinducedairactivityin30mevprotonacceleratorcomparativestudyofmontecarlosimulationsandanalyticalcalculations AT kapildeosingh estimationofinducedairactivityin30mevprotonacceleratorcomparativestudyofmontecarlosimulationsandanalyticalcalculations AT tapasbandyopadhyay estimationofinducedairactivityin30mevprotonacceleratorcomparativestudyofmontecarlosimulationsandanalyticalcalculations |