Compensation for beam intensity fluctuation in determination of P ion , the ion-recombination correction factor for ionization chambers, by the two-voltage technique

1989 ◽  
Vol 16 (3) ◽  
pp. 346-351 ◽  
Author(s):  
Yoshinori Hayakawa ◽  
Cinthia P. Loch ◽  
JunIchiro Tada ◽  
Tetsuo Inada
Keyword(s):  
Correction Factor ◽  
Intensity Fluctuation ◽  
Beam Intensity ◽  
Ionization Chambers ◽  
Ion Recombination

Determination of the ion recombination correction factor for intraoperative electron beams

2016 ◽  
Vol 26 (1) ◽  
pp. 35-44 ◽  
Author(s):  
Majid Ghorbanpour Besheli ◽  
Ioannis Simiantonakis ◽  
Klemens Zink ◽  
Wilfried Budach
Keyword(s):  
Correction Factor ◽  
Electron Beams ◽  
Ion Recombination

Experimental determination of the recombination correction factor kS for SNC 125c, SNC 350p and SNC 600c ionization chambers in pulsed photon beams

2020 ◽  
Vol 30 (4) ◽  
pp. 300-304
Author(s):  
Ann-Britt Schönfeld ◽  
Andreas A. Schönfeld ◽  
Hui Khee Looe ◽  
Björn Poppe ◽  
Rudy Leon de Wilde
Keyword(s):  
Experimental Determination ◽  
Correction Factor ◽  
Photon Beams ◽  
Ionization Chambers

scholarly journals EP-1718 Determination of ion recombination correction factor by empirical and numerical methods

2019 ◽  
Vol 133 ◽  
pp. S925-S926
Author(s):  
C. Anson Marcos ◽  
P. Castro Tejero ◽  
D. Hernández González ◽  
M. Roch González ◽  
P. García Castañón ◽  
...  
Keyword(s):  
Numerical Methods ◽  
Correction Factor ◽  
Ion Recombination

scholarly journals A PRELIMINARY STUDY OF RADIATION QUALITY CORRECTION FACTOR (KQ) DETERMINATION FOR WELL-TYPE IONIZATION CHAMBER

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Assef Firnando F ◽  
Okky Agassy Firmansyah ◽  
Cahya Wulandari ◽  
R. Pramuji Ramadhani S
Keyword(s):  
Correction Factor ◽  
Ionization Chamber ◽  
Planning System ◽  
Treatment Planning System ◽  
Radiation Quality ◽  
Ionization Chambers ◽  
Air Kerma ◽  
A Value ◽  
Brachytherapy Source

This paper deals with the determination of the radiation quality correction factor (kQ) well-type ionization chamber for the measurement of Co-60 brachytherapy. The measurement of the brachytherapy source has been done in the hospital brachytherapy facilities. The measurement of air Kerma has been done using three different ionization chambers 0.6 cm3, 30 cm3, 80 cm3, which have calibration factor traceability for Co-60 and one well-type ionization chamber which calibrated for Ir-192. The determination of the radiation quality correction factor (kQ) was determined based on the results of the air Kerma ratio between measurements using ionization chambers, which have traceability to Co-60 and Ir-192 sources. The results of the measurement of the reference air Kerma rate (RAKR) obtained from the three chambers were 21.36, 19.87, 19.34 mGy.m2.h-1, while the results of measurements with ionization chambers get a value of 19.01 mGy.m2.h-1. The kQCal results from 0.6 cm3 ionization chamber get a value of 1.07. The kQCal value was compared with the value of Andreas Schuller’s et al. kQreff of 1.05 and get a deviation of 2.2%. Implementation of the booth kQ value on the results of the RAKR from the HDR1000Plus well-type ionization chamber in the measurement of brachytherapy in two different facilities gets maximal deviation 1.7% with dose value from Treatment Planning System (TPS). The deviation was in the acceptable range of ±5%. Based on this, the use of radiation quality correction factor (kQ) value can be implemented as one method if it does not have the traceability factor calibration of the Co-60 brachytherapy source.

scholarly journals Experimental determination of stereotactic cone size and detector specific output correction factor

2017 ◽  
Vol 90 (1077) ◽  
Author(s):  
Dayananda Shamurailatpam Sharma ◽  
Rahul Kumar Chaudhary ◽  
Sunil Dutt Sharma ◽  
Shaju Pilakkal ◽  
Sachin K Rasal ◽  
...  
Keyword(s):  
Experimental Determination ◽  
Correction Factor ◽  
Specific Output
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