Technical note: A passive method for absolute dose evaluation of photoneutrons in radiotherapy

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Rajesh K.R.; GANAPATHI RAMAN R.; MUSTHAFA M.M.; Midhun C.V.; JOSEPH N.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: International Journal of Radiation Research Year:2020 | Volume:18 | Issue:1 Page(s): 173-178

Download Full-Text

View:

141

Download:

257

Cites:

Information Journal Paper

Title

Technical note: A passive method for absolute dose evaluation of photoneutrons in radiotherapy

Author(s)

Keywords

Medical linear accelerator

CR 39

photoneutron tracks

cancer treatment

Geant4

Abstract

Background: Photoneutrons are produced during the radiotherapy treatment, when high energy X rays interacts with structures of the head of the linear accelerator (linac). The present day TPS are not taking into account the photo-neutron dose and the biological effects associated with it. The late induction of cancer and recurrence of the disease in old cancer patients are being frequently reported. Materials and Methods: Patients undergoing radiotherapy treatment with 15 MV X rays from a Siemens Primus Plus linear accelerator was considered for the study. In the present work, photoneutron spectrum from the linac head is measured using CR 39 SSNTD and the corresponding dose is calculated using Geant4. The composite photoneutron spectrum from the linac head and the corresponding dose was calculated using the kerma evaluation method in a human equivalent tissue phantom. The repeated calculation outcomes and the covariance error analysis in the nuclear data give consistency and an accuracy of 2 % in the results. Results: The result shows that significant amount of photoneutron dose was deposited during radiotherapy treatment when high energy X rays are used. The photoneutron production from the patient itself is yet another major issue which will cause out off field dose. Conclusion: This work gives importance in considering the photoneutron dose during radiotherapy planning and protection. This extra dose might be a factor that contributes to the induction of cancer and also to the recurrence of cancer to previously cured patients.

Cites

No record.

References

No record.

Cite

APA: Copy

Rajesh, K.R., GANAPATHI RAMAN, R., MUSTHAFA, M.M., Midhun, C.V., & JOSEPH, N.. (2020). Technical note: A passive method for absolute dose evaluation of photoneutrons in radiotherapy. INTERNATIONAL JOURNAL OF RADIATION RESEARCH, 18(1), 173-178. SID. https://sid.ir/paper/759843/en

Vancouver: Copy

Rajesh K.R., GANAPATHI RAMAN R., MUSTHAFA M.M., Midhun C.V., JOSEPH N.. Technical note: A passive method for absolute dose evaluation of photoneutrons in radiotherapy. INTERNATIONAL JOURNAL OF RADIATION RESEARCH[Internet]. 2020;18(1):173-178. Available from: https://sid.ir/paper/759843/en

IEEE: Copy

K.R. Rajesh, R. GANAPATHI RAMAN, M.M. MUSTHAFA, C.V. Midhun, and N. JOSEPH, “Technical note: A passive method for absolute dose evaluation of photoneutrons in radiotherapy,” INTERNATIONAL JOURNAL OF RADIATION RESEARCH, vol. 18, no. 1, pp. 173–178, 2020, [Online]. Available: https://sid.ir/paper/759843/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops