Analysis of design characteristics of the prototype ionization chamber and beam loss monitor for proton accelerator facilities in Korea

• Дата: 2004
• Автори: Jae Cheon Kim, Jong Kyung Kim, Yong Kyun Kim, Se Hwan Park
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2004
• Назва видання: Functional Materials
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/135259
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Analysis of design characteristics of the prototype ionization chamber and beam loss monitor for proton accelerator facilities in Korea / Jae Cheon Kim, Jong Kyung Kim, Yong Kyun Kim, Se Hwan Park // Functional Materials. — 2004. — Т. 11, № 1. — С. 175-182. — Бібліогр.: 5 назв. — англ.

To investigate the design characteristics of the newly designed and fabricated prototype ionization chamber, which was made by cooperation with KAERI (Korea Atomic Energy Research Institute), the absorbed dose of inner gas was calculated and measured. The variations of the electric current of the above chambers were investigated at incident energies between 40 keV and 1 MeV using Monte Carlo codes such as EGSnrc (DOSRZnrc) and MCNP4C. Some calculations and measurements were performed to investigate their current variations as the incident angle of gamma-rays was changed from 0 ° to 90° and as the length of collecting electrode was changed from 10 mm to 20 mm. Some calculations were carried out to improve the collection efficiency of the ionization chamber for the beam loss monitor through replacement of wall (collecting electrode) material and inner gas. The influence due to improvement features of EGSnrc and MCNP4C was investigated through calculations of the depth dose distributions for broad beams of monoenergetic electrons with energies of 25 keV to 4 MeV, incident normally on water.