alexa
Reach Us +44-1235425476
Investigation and Performance Tests of a Designed and Constructed Cylindrical Ionization Chamber(0.6cc)in Iran | OMICS International | Abstract
ISSN: 2155-9619

Journal of Nuclear Medicine & Radiation Therapy
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

Investigation and Performance Tests of a Designed and Constructed Cylindrical Ionization Chamber(0.6cc)in Iran

Mahdi Seifi Moradi1* and Mostafa Ghafoori2

1Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

2Standards Dosimetry Lab, Agricultural, Medical and Industrial Research School, Nuclear Science and Technology Research Institute, Karaj, Iran

Corresponding Author:
Mahdi Seifi Moradi
Department of Medical Radiation Engineering
Science and Research Branch
Islamic Azad University
Tehran, Iran
E-mail: [email protected]

Received Date: January 30, 2012; Accepted Date: February 20, 2012; Published Date: February 24, 2012

Citation: Moradi MS, Ghafoori M (2012) Investigation and Performance Tests of a Designed and Constructed Cylindrical Ionization Chamber (0.6cc) in Iran. J Nucl Med Radiat Ther S3:003. doi:10.4172/nuclear-medicine.S3-003

Copyright: © 2012 Moradi MS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

There are a number of codes, reports and protocols by national and international organizations, including IAEA, which provide physicists with a systematic approach to dosimetry of photon beams. Most of these dosimetry recommendations have explicitly recognized the advantages of using cylindrical ionization chambers for dosimetry of therapeutic beams, especially for photon beams with energies from kilo voltage (kV) to megavoltage (MV) x-ray. A commercial cylindrical ionization chamber (W-30001) was used as the reference chamber for compare measurements. The homemade 0.6cc ionization chamber (CC1) have been designed, fabricated, tested and calibrated. Measurements were made using a Farmer type 2670 electrometer together with these chambers. Leakage current, short-term stability, cable effect, repeatability and angular dependence of the CC1 and W-30001 were all tested and found to be in consistence with the international standard IEC 60731. Ion collection efficiency and polarity effect were determined during calibration of the chambers in Co-60. According to the preliminary test results the CC1 homemade chamber is found to be in consistence with the international standard IEC 60731. An advantage of CC1 chamber is a very low leakage current i.e. its specific insulation design and material.

Recommended Conferences

Clinical Oncology & Radiation Therapy

Singapore, Singapore
Share This Page
Top