SU-E-T-270: Optimized Shielding Calculations for Medical Linear Accelerators (LINACs)

2012 ◽  
Vol 39 (6Part14) ◽  
pp. 3765-3765 ◽  
Author(s):  
W Muhammad ◽  
S Lee ◽  
A Hussain
Keyword(s):  
Linear Accelerators ◽  
Medical Linear Accelerators

scholarly journals Synchrotron X-ray induced acoustic imaging

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Seongwook Choi ◽  
Eun-Yeong Park ◽  
Sinyoung Park ◽  
Jong Hyun Kim ◽  
Chulhong Kim
Keyword(s):  
Acoustic Imaging ◽  
Signal Frequency ◽  
X Rays ◽  
Repetition Period ◽  
Linear Accelerators ◽  
X Ray ◽  
X Ray Computed ◽  
Medical Linear Accelerators ◽  
Ionizing Radiation Exposure ◽  
X Ray Absorption

AbstractX-ray induced acoustic imaging (XAI) is an emerging biomedical imaging technique that can visualize X-ray absorption contrast at ultrasound resolution with less ionizing radiation exposure than conventional X-ray computed tomography. So far, medical linear accelerators or industrial portable X-ray tubes have been explored as X-ray excitation sources for XAI. Here, we demonstrate the first feasible synchrotron XAI (sXAI). The synchrotron generates X-rays, with a dominant energy of 4 to 30 keV, a pulse-width of 30 ps, a pulse-repetition period of 2 ns, and a bunch-repetition period of 940 ns. The X-ray induced acoustic (XA) signals are processed in the Fourier domain by matching the signal frequency with the bunch-repetition frequency. We successfully obtained two-dimensional XA images of various lead targets. This novel sXAI tool could complement conventional synchrotron applications.

Some folded issues related to over-shielded and unplanned rooms for medical linear accelerators - A case study

2015 ◽  
Vol 67 (3) ◽  
pp. 599-607
Author(s):  
Wazir Muhammad ◽  
Asad Ullah ◽  
Amjad Hussain ◽  
Nawab Ali ◽  
Khan Alam ◽  
...  
Keyword(s):  
Linear Accelerators ◽  
Medical Linear Accelerators

A Model for Pre-emptive Maintenance of Medical Linear Accelerators: Predictive Maintenance

2014 ◽  
Vol 90 (1) ◽  
pp. S738
Author(s):  
C.M. Able ◽  
A.H. Baydush ◽  
C. Nguyen ◽  
J. Gersh ◽  
A. Ndlovu ◽  
...  
Keyword(s):  
Predictive Maintenance ◽  
Linear Accelerators ◽  
Medical Linear Accelerators

X-ray sources of medical linear accelerators: Focal and extra-focal radiation

1993 ◽  
Vol 20 (5) ◽  
pp. 1417-1427 ◽  
Author(s):  
D. A. Jaffray ◽  
J. J. Battista ◽  
A. Fenster ◽  
P. Munro
Keyword(s):  
Linear Accelerators ◽  
X Ray ◽  
Medical Linear Accelerators

Measurements in high-intensity beams from medical linear accelerators

1987 ◽  
Vol 14 (6) ◽  
pp. 1067-1070 ◽  
Author(s):  
P. F. O'Brien ◽  
R. B. Barnett ◽  
H. B. Michaels ◽  
R. A. Siwek
Keyword(s):  
High Intensity ◽  
Linear Accelerators ◽  
Medical Linear Accelerators

Characteristics of induced activity from medical linear accelerators

2005 ◽  
Vol 32 (9) ◽  
pp. 2899-2910 ◽  
Author(s):  
Yi Zhen Wang ◽  
Michael D. C. Evans ◽  
Ervin B. Podgorsak
Keyword(s):  
Linear Accelerators ◽  
Medical Linear Accelerators

The effect of field modifier blocks on the fast photoneutron dose equivalent from two high-energy medical linear accelerators

2007 ◽  
Vol 128 (3) ◽  
pp. 359-362 ◽  
Author(s):  
S. M. Hashemi ◽  
B. Hashemi-Malayeri ◽  
G. Raisali ◽  
P. Shokrani ◽  
A. A. Sharafi ◽  
...  
Keyword(s):  
High Energy ◽  
Dose Equivalent ◽  
Linear Accelerators ◽  
Medical Linear Accelerators
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