Document Type : Research Paper

Authors

• M Jafarizadeh
• S.M Hosseini Pooya
• B Firoozi
• A Kamali Shoroodani
• Kh Mohammadi

Abstract

In this investigation, the standard type tests performed on the LiF:Mg,Ti chip samples which have been produced in Iran. The dosimetry tests are consisting of sensitivity, homogeneity, linearity, reproducibility, minimum measurable dose (MMD), self and residual doses. The obtained results show that some of the tests such as sensitivity, minimum measureable dose, self and residual doses fulfill the criteria given by IEC 61066 and ASTM E668 standards; however, the remaining tests show some discrepancies in comparison with the standards. Also the sensitivity was measured to be 0.92 of that of commercially available TLD-100 (Harshaw) sample. So, the produced LiF:Mg,Ti dosimeter can be used in a routine personal/environmental and medical dosimetry with considering its precision.

Highlights

References:

 

1. 1.    M. Hosseini Pooya, M. Jafarizadeh, “Effect of reader and oven annealing on the glow curve structure and fading of LiF:Mg,Cu,P TL dosimeter,” Journal of Radiological Protection, 24, 173-178 (2004).

 

1. 2.    ر. صراف‌مأموری، ن. ریاحی‌نوری، خ. محمدی، ”ساخت قرص‌های پرتوسنج لیتیوم فلوراید با استفاده از روش تکنولوژی پودر،“ هفتمین کنگره سالانه انجمن مهندسین متالوژی ایران، دانشگاه صنعتی شریف، دانشکده مهندسی و علم مواد (مهر 1384).                                       

 

1. 3.    P. Katani, Kh. Mohammadi, Sh. Amiri, “Production of TLD-100 chips and characterization of its dosimetrical properties,” سومین کنفرانس بین‌المللی تأثیر پرتوهای یون‌ساز با دز کم و خیلی کم بر روی سلامت انسان، دانشگاه شهید بهشتی (مهر و آبان 1382).  
2. 4.    “IEC 61066: Thermoluminescence dosimetry systems for personal and environmental monitoring,” Second edition (2006-06).

 

1. 5.    ASTM E668, Standard practice for application of thermoluminescence dosimetry (TLD) systems for determining absorbed dose in radiation hardness testing of electronic devices (2000).

 

1. 6.    M. Oberhofer and A. Scharmann, “Applied thermoluminescence dosimetry,” Adam Hilger Ltd, Bristol (1979).

 

Keywords

• Dosimetry
• Lithium Florid
• Thermoluminescence
• IEC 61066 Standard
• Type Tests