ICISE School for Medical Physics 2022, ICISE, Quy Nhon, Vietnam

Session

Student presentations - Session 4

8 Sept 2022, 11:00

52. Investigation of neutron dose rate from 15 MV photon beam in Clinac iX medical accelerator at Kien Giang Oncology hospital

Vũ Ngọc Tú .

08/09/2022, 11:00

The photon beams in Radiotherapy are shaped by some components of the LINAC head such as collimators, flattering filter, MLCs, etc., which are made of heavy metals. Because the threshold for photon-neutron reaction of heavy materials is about 7 MeV, photon beams with energies of 10, 15, and 18 MV in clinical applications are capable of generating unwanted neutrons. These unwanted neutrons need...

53. Determination the neutron flux on Varian CX linear accelerator at 108 Military Cental Hospital by experimental method

Lê Mạnh Đức .

08/09/2022, 11:15

Nowaday, radiotherapy accelerators is used to treating patients with electron and photon beams. However, photon beam energy is greater than 8 MV, secondary neutron beam will be created by photo-nuclear reaction (γ, n). The effects of secondary neutron beam on patients during radiation therapy have not been fully evaluated. In the world, previous studies were conducted by author (Hong Suk Kim,...

54. DAILY DOSE TEST RESULT EVALUATION OF THE PRECISE ELEKTA ACCELERATORS AT HO CHI MINH CITY ONCOLOGY HOSPITAL

Nguyễn Khắc Sơn .

08/09/2022, 11:30

Target: Evaluation of daily dose test results of the Precise Elekta accelerators, there
by make conclusions about the dose stability of Precise Elekta accelerators.
Subjects, methods: Perform dose measurement on Precise Elekta accelerators
using Daily QA3 device based TRS-398[1], TG-142[2] reports and reference guide
of Sun Nuclear Corporation.
Results: In this study, results of daily...

49. Measurements of Percentage Depth Dose and Beam profile for 6 MV and 15 MV in water phantom at General Ninh Binh hospital

Trịnh Thúy Nguyện .

08/09/2022, 11:45

Radiotherapy is the branch of clinical medicine concerned with the application of ionizing radiation in the treatment of disease. The process of commissioning a linac for clincl use includes measurements of dosimetric parameters that are necessary to validate the treament planning systems used to select optimal radiation modality and treatment technique for individual patients. In the present...

55. A simple tool to show depth dose distributions in goods treated by 10 MeV electron beam

Nguyễn Ngọc Quốc Trình .

08/09/2022, 12:00

When we use the 10 MeV electron beam to irradiate goods (eg: frozen fish, seafood, pet food, fruit…), absorbed dose and Dose Uniformity Ratio (DUR) are two important aspects that must be considered. The energy depth distribution of the electron beam when going through the matter is quite varied, so the absorbed dose is varied too. We have to create a tool that demonstrates the absorbed dose...