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The measurement of absorbed dose and dose-equivalent levels for in vivo neutron activation analysis
| Content Provider | Scilit |
|---|---|
| Author | Makrigiorgos, G. Waker, A. J. |
| Copyright Year | 1985 |
| Description | Journal: Physics in Medicine & Biology A dual-chamber dosimetric method together with microdosimetric measurements have been employed to characterise the mixed neutron- gamma radiation field of a d-T neutron activation facility. Central axis and patient axis air kerma levels are reported together with patient midline dose levels determined from phantom measurements. The gamma -ray fraction of the total absorbed dose determined by the dual-chamber and microdosimetric method were found to be in agreement, within the estimated uncertainty limits. The free-air measurements indicate a uniform kerma profile across the patient couch with midpoint kerma rate of about 0.2 mGy $min^{-1}$ and a gamma -ray fraction of 14%. Phantom measurements yielded a patient midline total absorbed dose rate of about half this value and a gamma -ray fraction of 27%. A mean neutron quality factor of 9.3 derived from microdosimetric measurements was assigned to the neutron absorbed dose. |
| Related Links | http://iopscience.iop.org/article/10.1088/0031-9155/30/9/003/pdf |
| Ending Page | 919 |
| Page Count | 11 |
| Starting Page | 909 |
| ISSN | 00319155 |
| e-ISSN | 13616560 |
| DOI | 10.1088/0031-9155/30/9/003 |
| Journal | Physics in Medicine & Biology |
| Issue Number | 9 |
| Volume Number | 30 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1985-09-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Physics in Medicine & Biology Nuclear Energy and Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Radiology, Nuclear Medicine and Imaging Radiological and Ultrasound Technology |
