We presume that the reader understands conventional radiography in which photographic methods capture radiographic images. Typically, a patient is positioned between an x-ray source and a film/screen cassette. The cassette contains an intensifying screen which, when exposed to radiation, emits light which exposes a photographic emulsion. The photographic film can be developed to provide an imag...

New digital detectors were developed for medical applications, which have the potential to substitute the X-ray film. Digital Detector Arrays (DDA: Flat Panel Detectors, Line Detectors) and Imaging Plates (Computed Radiography, CR) allow a fast acquisition of radiographic images with higher dynamic than film. Especially DDA’s allow a radiographic inspection with considerable higher image qualit...

This note investigates the dose response of layered HS Gafchromic film compared to Kodak EDR-2 radiographic film. Using five layers of HS type Gafchromic film a dose response greater than EDR-2 film is achieved at the peak wavelength (0.55 OD/Gy versus 0.3 OD/Gy for EDR-2 film). Even over a broader waveband of 30 nm, which is similar to that found in ultra bright LED scanners, the response was ...

This short note investigates the energy response characteristics of a relatively new high sensitivity radiochromic film (XR type T) and compares it to other radiochromic and radiographic films and thermoluminescent dosimeters. Results show that the energy response of the new XR type T film is relatively large over the range of therapeutic energies from 50 kVp superficial x-ray treatment to 18 M...

Abstract Health facilities in Romania generate hundreds of thousands tons medical waste (hazardous and non-hazardous) annually. It is therefore necessary to apply a rigorous management this waste, compliance with applicable regulations, especially the case high potential for harmfulness. In context global PANDEMIC COVID 19, amount radiographic films generated has increased, using classic varian...

TG-69 is a task group report of the AAPM on the use of radiographic film for dosimetry. Radiographic films have been used for radiation dosimetry since the discovery of x-rays and have become an integral part of dose verification for both routine quality assurance and for complex treatments such as soft wedges (dynamic and virtual), intensity modulated radiation therapy (IMRT), image guided rad...

BACKGROUND: The purpose of this study was to evaluate the sensitometric characteristics of Ultraspeed, Ektaspeed Plus and Insight dental radiographic films using manual and automatic processing systems. METHODS: In this experimental invitro study, an aluminum step-wedge was used to construct characteristic curves for D-, E- and F-speed radiographic films (Kodak Eastman, Rochester, USA). All fil...

OBJECTIVE To gather information about the radiographic facilities and techniques used by Lithuanian general dentists. MATERIALS AND METHODS Questionnaires were sent to all 2879 Lithuanian dental practitioners registered on the Lithuanian Dental Chamber licence registry data list. The questionnaire was made with multiple-choice answers. Respondents were invited to choose the only one category ...