نتایج جستجو برای: active personal dosimeter

تعداد نتایج: 585856  

1998
Dave Smith Ian Searle

The Damage Dosimeter has been designed to fill a void in commercially available data recorders. The United States Air Force often has the need to measure structural strains and temperatures on in-service aircraft in order to diagnose difficult-to-analyze structural conditions, such as high cycle fatigue. To perform these functions a rugged, small, and lightweight data acquisition unit called th...

Journal: :Medical physics 2012
M Carroll G Ibbott R Grant J Adamovics M Gillin

PURPOSE To evaluate the effects of overlapping dose volumes for varying field arrangements in two formulations of PRESAGE®: one intended for, and irradiated with, proton beams and the other photon beams. METHODS For each treatment modality (photon, proton), three overlapping field setups were performed. These included a stationary dosimeter irradiated over six fractions, a dosimeter shifted l...

Journal: :The Science of the total environment 2001
S B Solomon

A two-screen sampler (an effective dosimeter), with a collection efficiency matched to the particle size response of the radon progeny dose conversion factors (DCF), obtained from the ICRP respiratory tract model as implemented in the computer code RADEP, has been developed to assess the inhalation dose from exposure to radon progeny. In order to evaluate the performance of this sampler, the se...

Journal: :AMRL-TR. Aerospace Medical Research Laboratories 1969
R F Rakowski

A personal colorimetric dosimeter for nitrogen dioxide has been developed. Detector strips are prepared by dipping Eastman Chromagram Sheet, Type K301R2, in a solution of diphenylamine and oxalic acid in methanol. When dry, the strips can be used to estimate the concentration-time product to which an individual has been exposed. The strips are sensitive to heat and light. Nitrogen dioxide devel...

Journal: :Journal of Physics: Conference Series 2022

Abstract In vivo dosimetry for patient radioprotection is a real challenge concerning new radiotherapy treatments. this study we aim to develop dosimeter based on tissue equivalent material, flexible and adaptable the morphology in order perform complex irradiation beams. Here, report evaluation standard beams of highly composed silicone elastomer containing leucomalachite green as radiochromic...

2000
I R Devine J Farrell

INTRODUCTION As part of an initiative to improve control of doses, the recording of personal doses, and the accuracy of dose statistics, BNFL started a three year scheme in April 1996 to install the Siemens Electronic Personal Dosimetry (EPD) system into nine of its Magnox Reactor sites. Concurrent with the installation of the EPD systems, an ultimately successful application has been made to t...

Journal: :Pertemuan dan Presentasi Ilmiah Standardisasi 2021

2013
Schouten

A practical exercise for developing a simple cost-effective solar ultraviolet radiation dosimeter is presented for use by middle school science students. Specifically, this exercise investigates a series of experiments utilising the historical blue print reaction, combining ammonium iron citrate and potassium hexacyanoferrate to develop an ultraviolet sensitive solution. The activity is intende...

Journal: :Radiation Physics and Chemistry 2021

Gamma-irradiation processes are very important tools for minimizing microbial load in dry food, inhibiting the proliferation of T-lymphocytes blood, and sterilization medical devices. To this end, a composite film dosimeter made radiation-sensitive monomer, 1,10-bis(diphenylamino)-4,6-decadiyne (DPD), embedded poly(vinyl alcohol) was prepared using an automatic applicator system. This polymeric...

2014
Yusuke Koba Kiyomitsu Shinsho Satoshi Tamatsu Shigekazu Fukuda Genichiro Wakabayashi

In order to measure a three-dimensional dose distribution in X-ray radiotherapy, we developed TL slab dosimeter with new TL phosphor Li3B7O12(Cu), which has Zeff = 7.42 and a density of 1.01 g/cm 3 and synthetic resin as binder [1].We can measure a three-dimensional dose distribution easily and reliably using this detector. This detector showed a promising tool for QA/QC in advanced X-ray radio...

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