Attenuation and Backscatter from a Lead Shield Used in HDR 192 Ir Brachytherapy

Brachytherapy ◽  
2017 ◽  
Vol 16 (3) ◽  
pp. S102-S103
Author(s):  
Bo Liu ◽  
Mandar S. Bhagwat ◽  
Scott A. Friesen ◽  
Desmond A. O’Farrell ◽  
Ivan M. Buzurovic ◽  
...  
Keyword(s):  
Lead Shield

scholarly journals University of Kiel Radiocarbon Measurements II

Radiocarbon ◽  
1967 ◽  
Vol 9 ◽  
pp. 257-260
Author(s):  
H. Willkomm ◽  
H. Erlenkeuser
Keyword(s):  
Proportional Counter ◽  
Atmospheric Pressure ◽  
Statistical Error ◽  
Quartz Tube ◽  
Sensitive Volume ◽  
Concrete Wall ◽  
Lead Shield ◽  
Double Ring

Most of the measurements reported here have been obtained with the 4.5-L CO2 counter previously described (Kiel I; Erlenkeuser, 1965). A few samples have been dated with a 3-L proportional counter. The copper counter is surrounded by 28 GM counters in the form of a double ring. The total assembly is shielded by 10 cm of old lead. Neither an inner lead shield between counter and anticoincidence ring nor screening of sensitive volume by a quartz tube-as in the 4.5-L counter-has been used. Background of the small counter is 17.20 cpm or The 0.95 x NBS value is 9.5 cpm at 400 torr. Within statistical error background does not depend on atmospheric pressure. The 3-L counter is placed under a concrete wall, 2.5 m in length and 9.4 m in height.

A PHANTOM STUDY SHOWING THE IMPORTANCE OF BREAST SHIELDING DURING HEAD CT

2020 ◽  
Vol 188 (4) ◽  
pp. 464-469 ◽  
Author(s):  
Nika Zalokar ◽  
Nejc Mekiš
Keyword(s):  
Computed Tomography ◽  
Dose Reduction ◽  
Phantom Study ◽  
Anthropomorphic Phantom ◽  
Head Ct ◽  
Lead Shield ◽  
Phantom Measurements ◽  
Lead Shielding ◽  
Head Computed Tomography

Abstract This study aimed to investigate the dose to the breasts during head computed tomography (CT) if lead shielding is used. The study was performed in two major hospitals using helical and axial protocols on an anthropomorphic phantom. Measurements were performed with and without the use of a lead shield of 0.5 mm equivalent density. The results showed a significant decrease in dose with the lead shielding in both hospitals. During the helical protocol, the use of shielding significantly reduced the dose by 96% in Hospital A and 82% in Hospital B. The dose reduction during axial protocol was also significant: 95% in Hospital A and 86% in Hospital B with lead shielding. Considering the significant dose reduction of 82% up to 96% during this study, we highly recommend the shielding of breasts regardless of the protocol used during head CT examinations.

The effectiveness of a free-standing lead-shield in reducing spine surgeon radiation exposure during intraoperative 3-dimensional imaging

2020 ◽  
Vol 20 (10) ◽  
pp. 1685-1691
Author(s):  
Guy Guenthner ◽  
Alexander Eddy ◽  
Jonathan Sembrano ◽  
David W. Polly ◽  
Christopher T. Martin
Keyword(s):  
Radiation Exposure ◽  
Free Standing ◽  
3 Dimensional ◽  
Lead Shield ◽  
Spine Surgeon

Use of a lead shield for laparoscopic detection of the sentinel lymph nodes in gastric cancer

2004 ◽  
Vol 16 (3) ◽  
pp. 195-198 ◽  
Author(s):  
Kazuhiro Yasuda ◽  
Koichi Ishikawa ◽  
Kazuya Sonoda ◽  
Masafumi Inomata ◽  
Norio Shiraishi ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Lymph Nodes ◽  
Sentinel Lymph Nodes ◽  
Lead Shield

Efficiency of the cervical lead shield during intraoral radiography

1986 ◽  
Vol 62 (6) ◽  
pp. 732-736 ◽  
Author(s):  
Israel Kaffe ◽  
Mark M. Littner ◽  
Tuvia Shlezinger ◽  
Pnina Segal
Keyword(s):  
Intraoral Radiography ◽  
Lead Shield

Thermoforming Plastic in Lead Shield Construction

1989 ◽  
Vol 14 (3) ◽  
pp. 219-221
Author(s):  
M.E. Abrahams ◽  
C.H. Chow ◽  
M.D. Loyd
Keyword(s):  
Lead Shield

Can We Reduce the Radiation Exposure During ERCP Procedure By Using a Novel Protective Lead Shield?

2008 ◽  
Vol 67 (5) ◽  
pp. AB234
Author(s):  
Toshio Kurihara ◽  
Takao Itoi ◽  
Atsushi Sofuni ◽  
Fumihide Itokawa ◽  
Shujiro Tsuji ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Lead Shield
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