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to freiburg as a 27-year-old after a serious illness i thought about what i wanted ... doselife i considered qualifying meter and founder of ptw as a university lecturer ... have it that i met dr hammer dr pychlau s supervisor annotation of the translator ... in the street he invited me to have a look at what he ... had been doing in the meantime and told me about his having set up a ... on an electrostatic relay it was out of sheer friendship back then that i went on a ... series of trips either to set up dosemeters or to instruct their ... in the operation dr hammer himself had serious financial difficulties to contend with ... and couldn t take many trips owing to his ...

responsibility means in 1922 twenty-seven years after röntgen discovered x-rays ... university founded ptw to produce and market his development of an x-ray ... component for measuring very small electrical charges in 1927 dr herbert ... pychlau took over the company and developed it during four decades into ... for medical radiology during the second half of the 20th century the business ... good reputation as a pioneer with both scientists and users technical improvements from ... electrometer tubes and transistors to microprocessor control ... and computer communication modernized the ... growing spectrum of products increasing exports finally ... to a further milestone in the company s history the foundation of ptw-new york ...

­ quality counts ptw has always been a synonym for quality equipment from the company ... s initial years such as the second generation dosemeters simplex and ... duplex are still in use motivated and responsible staff the basis for ... counts to our customers utmost satisfaction and in the service of medical ... itself to the design development and production of high quality devices and ... systems to do justice to these high ... expectations ptw introduced a system of quality assurance at an early stage ... requirements according to din iso 9001 and en 46001 additionally our quality ... management is constantly scrutinized updated and adjusted to fulfill ...

phantom 41023 for horizontal beams small size water phantom for absolute ... dosimetry in photon and electron beams with horizontal beam ... incidence features suitable for calibration of ionization chambers ... in highenergy photon and electron beams suitable for monitor calibration in water makes ... to irradiate up to three chambers simultaneously makes it possible to vary the measuring ... chambers alternatively tl detectors and feso4 ampoules can simultaneously be ... of the walls has the thickness of 3 mm and the size of 150 mm x 150 mm holding ... devices on the top and on the bottom of the phantom make it ... for easy carrying three adjustable supports for leveling etched cross hairs for ...

dosimetry equipment water phantom 41001 stationary for vertical beams water phantom small ... size water phantom for absolute dosimetry in ... photon and electron beams with vertical beam ... incidence features suitable for calibration of ionization chambers ... in high-energy photon and electron beams suitable for monitor ... beam incidence directly into the water surface measurements are done with a ... put into position through a hole in one side wall by using an appropriate waterproof ... acrylic adapter to seal the hole the adapter is supplied with ... a cavity on the opposite wall which serves as support the adapter is fixed ... the water level by means of a vertical scale on the phantom wall the external ...

therapy absolute dosimetry equipment hv-supply unitest electric test device separate ... device to supply adjustable high voltage to ionization ... internal hv-error detection the hv-supply is an external high voltage supply it ... work with an internal high voltage supply delivering a maximum chamber voltage of ... is needed an external high voltage source must be used the chamber voltage of the ... hv-supply can be adjusted precisely by a rotating ... must have an input for an external hv-source unidoswebline and tandem accept the ... connection of a hv-supply the hv-supply is equipped with a bnc connector for ... functioning of unidos unidos e multidos and tandem dosemeters features helps to ...

radiation therapy patient and brachytherapy dosimetry equipment ... absolute dosimetry in-vivo measurements and quality control in radiation therapy ... class hv +400 v only m connecting system available twelve channel in-vivo ... measurements connection box required six channel in-vivo dosemeter for diode ... measurements in rectum and bladder connection box required linac ... constancy check device for homogeneity and symmetry tests check probe required 48 ... for field analysis la48 linear array and extender me48 required complies with ... safety standard iec 60601-2-9 as a dosemeter for ... patient contact measures dose and dose rate or charge and current ... simultaneously multidos can be used with ionization ...

radiation therapy patient and brachytherapy dosimetry equipment dcms ... diode ceiling mount system diode mate mobile unit ceiling mounted ... support to accommodate in-vivo diode detectors ... units features accommodates up to 12 semiconductor detectors provides up to 3.2 m ... detector to be placed at the patient s skin for in-vivo dosimetry extension cable ... length the dcms diode ceiling mount system facilitates the handling of measuring ... probes to be located at the patient s skin for patient dose determination during ... beam treatment for cancer therapy the system is designed for robust daily use and ... in-vivo probes for high-energy photon and electron dose measurement see page 34 ...

radiation therapy patient and brachytherapy dosimetry equipment ... vivosoft in-vivo software multisoft afterloading software ... software for patient dosimetry during radiation ... external beams from linear accelerators and telecobalt units features controls the ... during external beam treatment and records the measuring data operates up ... to 12 semiconductor probes connected to a multi channel ... the microsoft windows based vivosoft software program enables the user to control the ... channel dosemeters vivodos vivodos e and multidos for dosimetry during external ... beam treatment and to store patient data together with associated ...

radiation therapy patient and brachytherapy dosimetry equipment ... probes afterloading calibration phantom semiconductor detectors for in-vivo dosimetry during ... treatment features measure rectum and bladder dose during intracavitary ... brachytherapy a five-fold rectum probe and two types of single bladder probes help ... against radiation overdose comply with safety standard iec 60601-2-9 for ... brachytherapy the five-fold semiconductor probe is positioned in the patient s ... rectum and a single detector probe is placed in the bladder ... radiation load to the most radiation sensitive organs automatically the five-fold ... probe has five individual detectors spaced 15 mm apart from each other to increase ...

radiation therapy patient and brachytherapy dosimetry equipment well- ... type chamber for al source calibration unidos® in-vivo dosemeter ... ionization chamber for afterloading source strength measurements features vented ... sensitive volume of 200 cm3 makes it possible to ... measure the source strength of afterloading sources according to ... aapm tg-56 accommodates suitable applicator adapters for commercial ... afterloading brachytherapy systems according to aapm tg-56 the well-type ... chamber is required for the source strength measurement of radioactive afterloading ... sources the recommended calibration factor is ... the air kerma strength cgy m2 h-1 the ptw calibration ... factors for apparent activity gbq or ci and exposure strength r m2 h-1 suitable ...

analysis dose distribution measurements and analyses of radiotherapy beams are ... must rely on the measuring equipment and handling should be easy and time-saving ... our widespread and proven tba therapy beam analyzers ... with common electronic devices and software and a variety of waterproof radiation ... enable the user to measure easily and accurately pulsed photon electron and ... in microprocessor technology and provide the user with the greatest ... in radiation therapy easier faster and more accurate than ever before no ... tba therapy beam analyzers are ideally suited to perform all of the measurement tasks ...

phantom tank mp3-m phantom tank large size motorized 3d water phantom for ... moving range includes a precision 3d stainless steel moving mechanism includes three ... stepper motors for a detector positioning speed ... of 50 mm/s and a positioning accuracy of ± 0.1 mm ... stable 20 mm thick acrylic walls and etched lines for precise tank alignment ... the large mp3 water tank is suitable for very large field measurements beam ... moving range is 600 mm x 500 mm and the vertical range is 407.5 mm the 20 ... mm thick acrylic walls and bottom do not bulge during prolonged ... period of use and feature etched lines for precise tank ... alignment precision stepper motors are mounted close above the tank ...

features high precision 3d water tank size moving range and motor positions ... optimized for tomotherapy® hi·art® systems 3d stainless steel moving mechanism ... with high speed stepper motors the mp3-t water tank is ... bulge during prolonged period of use and feature etched lines for precise tank ... alignment precision stepper motors are mounted on a position for ... they provide for high detector moving speed of 50 mm/s and high positioning ... ± 0.1 mm in contrast to analog drives stepper motor drives do not require regular ... to operate the tank mephysto mc2 software and tba electronics are required ... tomotherapy and hi·art are registred trademarks of ...

mp3-xs phantom tank mp2 phantom tank small size motorized 3d water phantom for ... therapy beams features high precision small volume 3d water tank especially ... designed for stereotactic or iort dose distribution measurements ... 3d stainless steel moving mechanism with high speed ... stepper motors the mp3-xs water tank is a small ... dose distribution measurements of small radiation fields as used for example in ... stereotaxy or intra-operation radiation therapy ... moving range is 200 mm x 200 mm and the vertical range is 300 mm the ... phantom has three adjustable supports for leveling etched crosshairs for ... alignment and a collision protected drain tap for ...

therapy beam analysis equipment mp1 mp1-s mp1-m phantom tanks plexitom® 2d ... water phantoms for absolute dosimetry and measurement of depth dose curves ... 1d water tanks for absolute dosimetry and depth dose measurement of high energy ... photon and electron beams comply with the ... protocols aapm tg-51 iaea trs-398 and din 6800-2 easy setup with alignment ... and fill lines and adjustable supports for leveling the mp1 mp1-s and mp1-m ... water tanks are small 1d phantoms for depth dose measurement ... to determine beam qualities and measure absolute doses according to ... dosimetry protocols the tank sizes meet the aapm tg51 iaea trs 398 and din ...

for absolute dosimetry with tansoft software and for relative dosimetry with tba ... systems features dual channel therapy dosemeter ... absolute dose measurement with tansoft software fast scanning measurements in motorized ... constant 10 ms variable bias voltage supply accepts ion chambers and solid state ... to be connected high resolution for small size ion chambers the tandem ... absolute therapy dosemeter the tansoft software provides calibration and correction ... factors for various detectors and displays the measurement results the ... polarity the tandem is very fast and makes it possible to set minimum ...

linear array with 47 ion chambers and multidos/me48 dosemeter for fast ... profile measurements features suitable for imrt and dynamic field measurements ... -filled ion chamber technology includes small volume ion chambers with high spatial ... the data of a complete profile within 1 s the la48 linear chamber array is ... specially designed for fast accurate and reliable dynamic field dosimetry ... measurements of virtual wedges and multileaf collimators it incorporates ... ion chamber array the combination of speed accuracy and spatial resolution down to ... 1 mm featured by the la48 is simply not possible with other systems the ... array has a measuring length of 37 cm and contains 47 fluid filled 8 mm3 ion ...

equipment epid qc phantom epidsoft software test object for quality control of ... in high-energy photon beams features suitable for conventional epids and flat panel ... checks linearity isotropy noise low and high contrast resolution with test ... elements in focal spot geometry high contrast resolution in ... horizontal vertical and diagonal direction measurement of all ... parameters with a single beam in one image electronic portal ... radiation therapy to verify the patient s position in the radiation beam during ... are intended to detect physiological structures of the patient and to refer to them to ... the photon beam s coordinate system regular quality checks of the epids are ...

ntor 84 83 c2 diame ntor e2 cx 84 diado s dia dos e 85 dental dosim etry 93 ct ... dos imetry 94 unido se 95 diavo lt 95 diagno stic me 102 1 ... phanto ers m 98 profi test ph antom 98 s filter s ets 98 conny ii 97 x-che ck ... dsa 104 norm i mam 109 screen -film c ontact 110 test to centric ols ... cross 113 sensix 113 densix senso 116 densix densix auto s 116 11 ensode ... iec 61676 please note 2003-09 80 iec-sta ndards in med ical ra diology medical ... 1988-12 general requirements for safety 1994-07 3 collateral standard general ... as used in radiotherapy evaluation and routing testing in medical imaging ... constancy tests radiographic cassettes and film changers film-screen contact and ...

in diagnostic radiology features single channel patient dosemeter complies with ... international standard iec 60580 particularly suitable for ... retrofitting existing equipment and for use with small x-ray equipment ... ris or pacs diamentor e2 is an economic and easy-to-handle device for measuring the ... area product dap during radiography and fluoroscopy according to international ... a ris or pacs compact dosemeter for dap and dap rate measurement in patient ... features all-in-one chamber and electronics housing complies with iec ... the electronic parts into the flat size b chamber the whole diamentor cx is ... made suitable for firm mounting on the collimator of ...

dosimetry equipment diamentor® built-in solutions diamentor® chambers compact dose area ... product systems for patient dosimetry in diagnostic ... features different built-in diamentor systems and dosemeters are available ... multifunctional and dual channel devices for single plane ... and biplane x-ray units systems with an internal rs232 interface for ... test function for fast calibration and constancy checks various built-in ... diamentor systems have been developed in cooperation with ... x-ray installations worldwide built-in solutions with one or two measuring channels all- ... in-one chambers and electronic systems with or without an internal rs232 ...

for radiography fluoroscopy and mammography features represents a ... valuable small size dosemeter for routine qc measures the ... entrance dose and dose rate in front of a phantom at 30 ... kv mammo and 70/100 kv conventional x-rays complies ... within the ranges of use displays dose and dose rate in gy and gy/s r and r/s ... optional and time in s the dose of x-ray beams is the most ... of x-ray equipment each constancy check should include a dose measurement the conny ii ... the rex phantom for qc of radiography and fluoroscopy devices and with the normi ... and x-check phantoms for qc conny ii is ...

accessories pediatric filters surgical gloves for radiation protection ... pediatric x-ray examinations features slide into the rails of the x-ray collimators ... are mandatory additional x-ray filters should be used to reduce patient exposure the ... collimator guide rails of radiographic and fluoroscopic x-ray installations they ... are transparent and do not interfere with standard routine ... rubber gloves to attenuate x-rays and consequently protect surgeon s hands ... during x-ray guided surgery features attenuate the radiation of low ... energy x-rays and gamma rays and protect surgeons hands against ... radiation exposure maintain sensitivity of touch minimize the risk of allergic ...

introduction radiation measurement and quality control in nuclear medicine ... since the discovery of x-rays in 1895 by rö ... ntgen and uranium radioactivity in 1896 by ... development nuclear medicine started in 1937 with the first clinical use of ... about virtually every major organ system within the body modern computer based ... techniques such as pet positron emission tomography and ... spect single photon emission computed tomography ... by documenting dynamic organ function and structure pet is rapidly becoming a ... demonstrate the chemistry of organs and other tissues such as tumors a ... 18f is injected into the patient s body and its emissions are measured by ...

for realistic quality control of pet scanners acc cec concerted action project ... features simulates realistic conditions by utilizing body- ... shaped acrylic vessels includes covers with ... various inserts inserts can be filled and emptied from outside complies with the ... that assessment of a clinical measuring system should always be made under the most ... possible to imitate the patient s influence as an absorbing and ... scattering medium one of the circular covers with ... the body phantom b with a water tight seal in all cases the possibility of filling ... and emptying the inserts and phantom from outside is one of the main ...

physics radiation monitoring equipment step survey meter dmc 2000 personal ... portable ion chamber dosemeter for dose and dose rate measurements of x and gamma ... radiation features serves for protection level dosimetry in a ... range of 6 kev to 7.5 mev of x-rays and gamma rays displays the reading on a ... backlit lcd shows very low energy and directional dependence provides wide ... protection levels dose 2 2000 µsv dose rate 2 µsv/h 2msv/h measures ... continuous and pulsed radiation the approved step ... survey meter is used for protection level ... in nuclear medicine laboratories and in the environment nuclear medicine ...

facilities radiation detectors and dosemeters are usually calibrated on a ... the bench is combined with a radiation source for defined irradiation of the ... are to be calibrated the calibration source is a 60co source or a 137cs source each ... energies by varying the high voltage and filter settings different x-ray beam ... is mounted in front of the x-ray tube a stable support is required to install the x- ... ray tube together with its heavy lead shielding into the right position for dose ... the beam this chamber is designed as a shadow-free transmission chamber and has to be ... calibrated traceable to a primary standard for calibration the detectors are fixed ...

radiological calibration equipment shielded x-ray tube support filter wheel for x- ... basic construction including lead shielding to accommodate an x-ray tube for ... independent of floor conditions on site includes 8 mm lead shielding for an x- ... ray tube shielding dimensions in accordance with tube ... calibration benches require a radiation source for radiological calibrations an x-ray ... used for this purpose the x-ray tube support is a good solution to ensure stable ... installation and proper shielding of the tube it consists of a steel ... table and lead shielding the table platform is 800 mm long and ... can be between 400 and 600 mm wide the platform height is 1000 ...

health physics radiological calibration services calibration service laboratory ... calibration service facilities ptw-freiburg operates an ... accredited secondary standard dosimetry laboratory for radiological ... is a member of the iaea international ssdl network and the german calibration ... service dkd the calibrations are directly ... traceable to the primary standards of bipm bureau international de poids ... german federal institute of physics and metrology nine calibration facilities ... qualities measuring quantities and dose rate ranges are available upgrade ... a most important part of ptw-freiburg since its first days the task to produce ...