A Review of Ionization Chambers Developed for Use at the Brazilian IPEN Calibration Laboratory
L Pereira Neves, AP Perini, LVE Caldas - Brazilian Journal of Physics, 2024 - Springer
Over the past 35 years, the Calibration Laboratory of IPEN (LCI) has seen significant
advancements in the development of ionization chambers. This paper highlights the key …
advancements in the development of ionization chambers. This paper highlights the key …
Characterization of an extrapolation chamber for low-energy X-rays: Experimental and Monte Carlo preliminary results
The extrapolation chamber is a parallel-plate ionization chamber that allows variation of its
air-cavity volume. In this work, an experimental study and MCNP-4C Monte Carlo code …
air-cavity volume. In this work, an experimental study and MCNP-4C Monte Carlo code …
Extrapolation chamber response in low-energy x radiation standard beams
SK Dias, LVE Caldas - Journal of Applied Physics, 2001 - pubs.aip.org
Measurements of absorbed dose rates in air and tissue produced by low-energy x radiation
are often difficult to obtain with accuracy. The recommended instruments for these …
are often difficult to obtain with accuracy. The recommended instruments for these …
Characteristics of an extrapolation chamber for β-ray protection level measurements
SK Dias, LVE Caldas - Journal of applied physics, 1999 - pubs.aip.org
An absolute determination of the absorbed dose rates to tissue from a Sr 90 Sr+ 90 Y β-ray
secondary standard source was attempted using an extrapolation chamber developed at the …
secondary standard source was attempted using an extrapolation chamber developed at the …
Performance of a prototype of an extrapolation minichamber in various radiation beams
ML Oliveira, LVE Caldas - Applied radiation and isotopes, 2007 - Elsevier
An extrapolation minichamber was developed for measuring doses from weakly penetrating
types of radiation. The chamber was tested at the radiotherapeutic dose level in a beam from …
types of radiation. The chamber was tested at the radiotherapeutic dose level in a beam from …
Development of a motorized system for the characterization of the RQR reference x-ray beams at the KFSHRC's SSDL using an extrapolation chamber
An extrapolation chamber of type Böhm 23392, used for the dosimetry of RQR beam
qualities at the Secondary Standard Dosimetry Laboratory of King Faisal Specialist Hospital …
qualities at the Secondary Standard Dosimetry Laboratory of King Faisal Specialist Hospital …
Preliminary studies of a new monitor ionization chamber
MT Yoshizumi, V Vivolo, LVE Caldas - Applied Radiation and Isotopes, 2010 - Elsevier
A new monitor ionization chamber was developed at Instituto de Pesquisas Energéticas e
Nucleares (IPEN) in order to monitor X-ray beams. The main difference of this monitor …
Nucleares (IPEN) in order to monitor X-ray beams. The main difference of this monitor …
Application of extrapolation chambers in low-energy X-rays as reference systems
EAB da Silva, LVE Caldas - Applied Radiation and Isotopes, 2012 - Elsevier
Extrapolation chambers are instruments designed to measure doses of low-energy
radiations, mainly beta radiation. In this work, a commercial extrapolation chamber and a …
radiations, mainly beta radiation. In this work, a commercial extrapolation chamber and a …
Comparison of calibration results for an extrapolation chamber obtained with different 90Sr+ 90Y secondary standard sources
PL Antonio, VS Carvalho, LVE Caldas - Applied Radiation and Isotopes, 2012 - Elsevier
Two secondary standard systems of beta radiation were used to calibrate a PTW
extrapolation chamber Model 23391. Three 90Sr+ 90Y sources of different activities were …
extrapolation chamber Model 23391. Three 90Sr+ 90Y sources of different activities were …
A prototype of an extrapolation chamber for beta radiation beams of 90Sr+90Y
SM Vahabi, M Shamsaie Zafarghandi… - … of Radioanalytical and …, 2014 - Springer
Extrapolation chamber is the only primary standard dosimeter for beta radiation. With the
aim to test new configurations and materials using easily-available and low-cost materials …
aim to test new configurations and materials using easily-available and low-cost materials …