Evaluation of useful neutron flux for accelerator boron neutron capture therapy using the 7Li(p,n) reaction.

abstract：:Transmission data for a fibre cement wallboard (villaboard) are determined for use in diagnostic shielding designs. Villaboard is found to be more attenuating than plasterboard e.g. 9 mm of villaboard is equivalent to 16 mm of plasterboard. ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Thiele DL,Godwin GA,Coakley KS

更新日期：1998-09-01 00:00:00

abstract：:The purpose of this study is to develop a novel breast abnormality detection system by utilizing the potential of infrared breast thermography (IBT) in early breast abnormality detection. Since the temperature distributions are different in normal and abnormal thermograms and hot thermal patches are visible in abnorma...

journal_title：Australasian physical & engineering sciences in medicine

authors： Gogoi UR,Bhowmik MK,Bhattacharjee D,Ghosh AK

更新日期：2018-12-01 00:00:00

abstract：:Radiofrequency-electromagnetic field (RF-EMF) exposure of human populations is increasing due to the widespread use of mobile phones and other telecommunication and broadcasting technologies. There are ongoing concerns about potential short- and long-term public health consequences from RF-EMF exposures. To elucidate ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Bhatt CR,Redmayne M,Abramson MJ,Benke G

更新日期：2016-03-01 00:00:00

abstract：:The purpose of this paper is to describe an outline of a proton therapy system in Nagoya Proton Therapy Center (NPTC). The NPTC has a synchrotron with a linac injector and three treatment rooms: two rooms are equipped with a gantry and the other one is equipped with a fixed horizontal beamline. One gantry treatment ro...

journal_title：Australasian physical & engineering sciences in medicine

authors： Toshito T,Omachi C,Kibe Y,Sugai H,Hayashi K,Shibata H,Yasui K,Tanaka K,Yamamoto T,Yoshida A,Nikawa E,Asai K,Shimomura A,Okumura I,Suzuki T,Kinou H,Isoyama S,Ogino H,Iwata H,Shibamoto Y,Mizoe J

更新日期：2016-09-01 00:00:00

abstract：:Numerical simulation is performed to demonstrate that hemodynamic factors are significant determinants for the development of a vascular pathology. Experimental measurements by particle image velocimetry are carried out to validate the credibility of the computational approach. We present a study for determining compl...

journal_title：Australasian physical & engineering sciences in medicine

authors： Cheung SC,Wong KK,Yeoh GH,Yang W,Tu J,Beare R,Phan T

更新日期：2010-12-01 00:00:00

abstract：:In 2001 the ACPSEM published a position paper on quality assurance in screen film mammography which was subsequently adopted as a basis for the quality assurance programs of both the Royal Australian and New Zealand College of Radiologists (RANZCR) and of BreastScreen Australia. Since then the clinical implementation ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Heggie JCP,Barnes P,Cartwright L,Diffey J,Tse J,Herley J,McLean ID,Thomson FJ,Grewal RK,Collins LT

更新日期：2017-09-01 00:00:00

abstract：:From the time when Roentgen and other physicists made the discoveries which led to the development of radiology, radiotherapy and nuclear medicine, medical physicists have played a pivotal role in the development of new technologies that have revolutionized the way medicine is practiced today. Medical physicists have ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Ng KH

更新日期：2008-06-01 00:00:00

abstract：:The Resonant Recognition Model (rrm) uses digital signal processing methods to investigate protein structure-function; and links the biological function of protein families to unique characteristic frequencies. The rrm originally used a single set of variables: the electron ion interaction potential (EIIP). Here the r...

journal_title：Australasian physical & engineering sciences in medicine

authors： Birch S,West R,Cosic I

更新日期：1995-12-01 00:00:00

abstract：:A general purpose, multi-channel digital data acquisition and analysis system (Amlab, Associative Measurements, Sydney) configured to collect and process physiological signals including electroencephalograph and blood pressure is described. Its advantages over analog and single-purpose instrumentation are discussed as...

journal_title：Australasian physical & engineering sciences in medicine

authors： Hall GL,Colditz PB

更新日期：1995-09-01 00:00:00

abstract：:Surface, build-up and depth dose characteristics of a monoenergetic electron point source simulated by Monte Carlo code MCNP4c for varying field size and SSD are extensively studied in this paper. MCNP4c (Monte Carlo N-Particle Transport Code System) has been extensively used in clinical dose simulation for its versat...

journal_title：Australasian physical & engineering sciences in medicine

authors： Lin H,Wu DS,Wu AD

更新日期：2004-12-01 00:00:00

abstract：:The Australasian College of Physical Scientists and Engineers in Medicine (ACPSEM) Radiation Oncology Specialty Group (ROSG) formed a series of working groups in 2011 to develop position papers for guidance of radiation oncology medical physics practice within the Australasian setting. These position papers are intend...

journal_title：Australasian physical & engineering sciences in medicine

authors： Shakeshaft J,Perez M,Tremethick L,Ceylan A,Bailey M

更新日期：2014-03-01 00:00:00

abstract：:A solid water breast phantom with a lung equivalent material was constructed to investigate interface effects of 6 MV tangential photon fields. The phantom was built so that Thermo-luminescence Dosimeters (TLD) could be used for comparison to a pencil beam and Equivalent Tissue-Air-Ratio (ETAR) algorithms. The investi...

journal_title：Australasian physical & engineering sciences in medicine

authors： Hill B,Brown R

更新日期：1998-03-01 00:00:00

abstract：:Wavelet theory is emerging as one of the prevalent tool in signal and image processing applications. However, the most suitable mother wavelet for these applications is still a relative question mark amongst researchers. Selection of best mother wavelet through parameterization leads to better findings for the analysi...

journal_title：Australasian physical & engineering sciences in medicine

authors： Saraswathy J,Hariharan M,Nadarajaw T,Khairunizam W,Yaacob S

更新日期：2014-06-01 00:00:00

abstract：:A continuous positive airway pressure (CPAP) device is considered one of the most effective treatments for obstructive sleep apnea (OSA). However, many patients receiving this treatment complain of mask discomfort and other issues. Therefore, this study aimed to develop a customized nasal mask cushion to reduce the di...

journal_title：Australasian physical & engineering sciences in medicine

authors： Hsu DY,Cheng YL,Bien MY,Lee HC

更新日期：2015-12-01 00:00:00

abstract：:A set of computer programs to simulate diagnostic x-ray spectra has been developed according to the method of Birch and Marshall, with good agreement to published HPA data. These programs have been extended to simulate spectra generated with capacitor discharge x-ray units. The application of these programs has proved...

journal_title：Australasian physical & engineering sciences in medicine

authors： McLean D

更新日期：1989-09-01 00:00:00

abstract：:Laparoscopic ultrasound (LUS) has been widely utilized as a surgical aide in general, urological, and gynecological applications. Our study summarizes the clinical applications of laparoscopic ultrasonography in laparoscopic gynecologic surgery. Retrospective analyses were performed on 42 women subjects using laparosc...

journal_title：Australasian physical & engineering sciences in medicine

authors： Gong XH,Lu J,Liu J,Deng YY,Liu WZ,Huang X,Pirbhulal S,Yu ZY,Wu WQ

更新日期：2015-12-01 00:00:00

abstract：:In this paper, the peristaltic flow of rheologically complex physiological fluids when modelled by a non-Newtonian Casson fluid in a two-dimensional channel is considered. Of interest is the difference between peristaltic transport of Newtonian and non-Newtonian fluids. A perturbation series method of solution of the ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Mernone AV,Mazumdar JN

更新日期：2000-09-01 00:00:00

abstract：:At present, the Australasian College of Physical Scientists and Engineers in Medicine does not support the practice of self-referred whole-body CT screening of asymptomatic patients because: The procedure involves a non-trivial radiation dose, which assumes even greater significance in the context of an ongoing screen...

journal_title：Australasian physical & engineering sciences in medicine

authors： Le Heron JC,Coakley KS

更新日期：2004-03-01 00:00:00

abstract：:Rotary blood pumps have the potential to become a viable long-term treatment option for the heart failure patients to bridge to transplantation or destination therapy. However, these devices operate at a constant speed which may lead to long term complications or they may operate in an undesired support mode such as e...

journal_title：Australasian physical & engineering sciences in medicine

authors： Bozkurt S

更新日期：2016-03-01 00:00:00

abstract：:Given that there is increasing recognition of the effect that sub-millimetre changes in collimator position can have on radiotherapy beam dosimetry, this study aimed to evaluate the potential variability in small field collimation that may exist between otherwise matched linacs. Field sizes and field output factors we...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kairn T,Asena A,Charles PH,Hill B,Langton CM,Middlebrook ND,Moylan R,Trapp JV

更新日期：2015-06-01 00:00:00

abstract：:The risk of inducing contralateral breast (CLB) cancer in patients undergoing tangential field irradiation for the treatment of breast cancer is a serious concern in radiation oncology. A bilateral breast phantom made of wax attached onto the Alderson Rando phantom was used for studying the CLB dose for techniques usi...

journal_title：Australasian physical & engineering sciences in medicine

authors： Prabhakar R,Haresh KP,Julka PK,Ganesh T,Rath GK,Joshi RC,Sasindran M,Naik KK,Sridhar PS

更新日期：2007-03-01 00:00:00

abstract：:Sometimes infusion pumps are used to deliver whole blood to patients. However, in doing so there is a potential for damage to red cells from mechanical stresses in the pump, resulting in haemolysis. In order to investigate the degree of haemolysis caused by different pumps and therefore their suitability for whole blo...

journal_title：Australasian physical & engineering sciences in medicine

authors： Denison M,U P,Bell R,Schuldreich R,Chaudhri MA

更新日期：1991-03-01 00:00:00

abstract：:It has long been recognized that the assessment of Automatic Exposure Control (AEC) function is an important criterion in the assessment of any general radiographic x-ray installation. Of the tests commonly performed on an AEC, only Beam Quality Dependence relates intimately with the optical density produced on the re...

journal_title：Australasian physical & engineering sciences in medicine

authors： Wilkinson LE,Heggie JC

更新日期：1997-09-01 00:00:00

abstract：:A simple and rapid technique to measure the proton beam energy in the external beam line of a medical cyclotron has been examined. A stack of 0.1 mm thick high purity copper (Cu) foils was bombarded and the relative activity of 65Zn produced in each foil was compared to a computational model that predicted activity, b...

journal_title：Australasian physical & engineering sciences in medicine

authors： Burrage JW,Asad AH,Fox RA,Price RI,Campbell AM,Siddiqui S

更新日期：2009-06-01 00:00:00

abstract：:Thermoluminescence dosimetry (TLD) is a versatile tool for the assessment of dose from ionising radiation. The wide variety of TLD materials and their different physical forms allow the determination of different radiation qualities at dose levels from microGy to kGy. Major advantages of TL dosimeters are their small ...

journal_title：Australasian physical & engineering sciences in medicine

authors： Kron T

更新日期：1994-12-01 00:00:00

abstract：:Mitral stenosis (MS) and mitral insufficiency (MI) have different pre-operative hemodynamic characteristics. However, it is unclear if there are differences in long-term echocardiographic characteristics of MS and MI patients after mechanical mitral valve replacement. This study is to compare long-term echocardiograph...

journal_title：Australasian physical & engineering sciences in medicine

authors： Zhu X,Li Q,Tang H,Xiao X

更新日期：2017-03-01 00:00:00

abstract：:A variable magnetic deflector which attaches onto the treatment head of a linear accelerator has reduced skin dose by as much as 65% for 6MV x-rays. The magnetic deflector is constructed from Neodymium Iron Boron (NdFeB) rare earth magnets. It weighs approximately 15 kg and is designed to easily fit onto the accessory...

journal_title：Australasian physical & engineering sciences in medicine

authors： Butson MJ,Yu P,Kan M,Carolan M,Young E,Mathur JN,Metcalfe PE

更新日期：1997-06-01 00:00:00

abstract：:The knowledge of radiation dose at all points of interest within a patient's body is essential for the evaluation of treatment plans and for the judicious selection of the best one from among a set of competing plans. This paper discusses the physical and geometric aspects of radiation dose distribution calculations n...

journal_title：Australasian physical & engineering sciences in medicine

authors： Mohan R

更新日期：1989-12-01 00:00:00

abstract：:A new PTW advanced Markus ionization chamber has been implemented in IMRT fields, to measure surface dose at ICRU and ICRP reference depth of 0.07 mm [ICRU Report 39, Determination of dose equivalents resulting from external radiation sources, 1985; ICRP Publication 60, 1990 recommendations of the International Commis...

journal_title：Australasian physical & engineering sciences in medicine

authors： Chen FQ,Gupta R,Metcalfe P

更新日期：2010-03-01 00:00:00

abstract：:The performance of an image registration (IR) software was evaluated for automatically detecting known errors simulated through the movement of ExactCouch using an onboard imager. Twenty-seven set-up errors (11 translations, 10 rotations, 6 translation and rotation) were simulated by introducing offset up to ± 15 mm i...

journal_title：Australasian physical & engineering sciences in medicine

authors： Sharma SD,Dongre P,Mhatre V,Heigrujam M

更新日期：2012-09-01 00:00:00