The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A demonstrator of the portable position sensitive neutron detecting device for neutron imaging in a mixed radiation field is presented. A detector of the device is based on multilayer perpendicularly crossed strip sensors interlaced with neutron converter. A 6LiF converter producing energetic alpha particles and tritons is used. The converter permits precise determination of a position of the neutron...
Our work demonstrates the potential of gated graphene field effect transistors (GFETs) fabricated on a variety of undoped semiconductor substrates such as SiC, CdTe, and GaAs to sense ionizing radiation with promise of high sensitivity, low noise, low power, and room temperature operation. We exploit distinct material properties of different substrates to address different application regimes. Radiation...
We present the results of our recent efforts to develop novel ionizing radiation sensors based on the nanomaterial graphene. Graphene used in the field effect transistor architecture could be employed to detect the radiation-induced charge carriers produced in undoped semiconductor absorber substrates, even without the need for charge collection. The detection principle is based on the high sensitivity...
Proton therapy offers the advantages of a superior target dose conformality and lower integral dose over the conventional photon therapy. However, range uncertainties associated with dose calculation approximations, tumor motion, setup variations, etc., present a major concern in proton therapy. In order to address this issue, we are developing a 2 mm resolution scintillating fiber detector with fibers...
Graphene field effect transistors (GFETs) fabricated on undoped semiconductor substrates have shown promise for sensing ionizing radiation with a potential of high sensitivity, low noise, low power, and room temperature operation. Radiation detection with GFET is based on the high sensitivity of graphene resistivity on local electric field perturbations caused by ionized charges generated in an electrically...
The CMS pixel detector is located at the core of the CMS all-silicon tracker and consists of three barrel layers (BPIX) and two end-cap disks (FPIX) on each side of the interaction region. About 1000 detector modules were built and tested at Purdue University from June 2006 to March 2008, and delivered to Fermilab for the construction of FPIX disks. This paper describes the assembly and qualification...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.