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'''A Positron Production Efficiency Measurement using the IAC’S High Repetition Rate LINAC ...uction as well as the experimental setup, procedure, and measured positron production efficiency.

Niowave Positron Project Progress for January 2016 ...ency as a 1.0 Tesla field and a 34.8mm diameter beam pipe. Otherwise, the positron transport efficiency can increase by a factor of two when using a 34.8 mm d

=Title: Linac Based Positron Production= ...foil pair produces electron and positrons. In this paper, we describe the production, transportation and detection of positrons when electron beam energy is 15

...s (all). LED is in updating mode. Pair spectrometer Det @ 15 mV threshold. Production run. Positron rate by visual scaler = 120 e+/min

on thermal positron uses. A paragraph reviewing other positron sources and positron production with CEBAF and an estimate of the beam properties.

Niowave Positron Project Progress for October 2015 ...e surface of the PbBi target with a mean momentum of 2.3 MeV. The positron production efficiency predictions from MCNPX and GEANT4 are within uncertainties.

...ield will be varied next to determine the optimal values for the preffered positron emmittance. More common beam transport packages may be employed once the e

=Positron Production= ...ibrate beam instrumentation devices which will be used to measure positron production efficiencies. These instruments measure the beam current and the profile o

Development of a Positron source using a PbBi converter and a Solenoid ...id with a diameter to allow a 9.74 (3.94) cm diameter pipe would collect a positron per thousand incident electrons on a 2mm thick LBE target with 0.25 mm thic

Actinium production using the IAC Linacs DOE grants (f) Isotope Development and Production for Research and Applications on pg 37

Niowave Positron Project Progress for February 2016 ...234.6 keV electron and a 894.2 keV positron at time t=3.336 ns. Only the positron has enough energy to exit the stainless steel window.

quad settings after T1 (Target 1, positron production target). quad settings after T1 (Target 1, positron production target).

quad settings after T1 (Target 1, positron production target). quad settings after T1 (Target 1, positron production target).

Liquid Lead Bismuth Target for Positron Production ...riments [5, 6] and to do chemistry with antimatter [7]. Finally, efficient positron traps also require an intense source of positrons [8, 9].

Niowave Positron Project Progress for April 2016 Below is the photon energy distribution (from Brem & pair production) using a 2mm Pb target for two different incident electron energies; 6 and

...of target thickness and the use of a solenoidal magnetic field on positron production efficiency as well as the amount of energy that will be deposited by scatte .... The target thickness was changed to determine the optimal thickness for positron emmission from the downstream surface of the LBE target. The simulation wa

#Isotope production #defect detection (Positron annihilation,

Niowave Positron Project Progress for November 2015 ...ositron project, after determining the PbBi thickness for maximum positron production, was to estimate the heat that would be deposited from the primary electron

Positron Collection rates with '''60 cm''' long Solenoid ...eV electron || Same Event but this time the solenoid is 0.3 Tesla and the positron hits the beam pipe, annihilates and makes two 511 keV photons

...lection system and associated beam line components to measure the positron production efficiency using the HRRL. ...lection system and associated beam line components to measure the positron production efficiency using the HRRL.

Niowave Positron Project Progress for September 2015 ...simulation using MCNPX and ISU used GEANT4. A comparison of the positron production efficiency predictions made by MCNPX and G4beamline (GEANT4) is shown in th

| IAC apparatus for positron production experiment || Counts observed when the dipole is tuned to direct positrons ==NaI rate Ratio of positron to electron beam==

...234.6 keV electron and a 894.2 keV positron at time t=3.336 ns. Only the positron has enough energy to exit the stainless steel window. ...Positron location after leaving LBE target (t,x,y,z,Px,Py,Pz),Location of positron as it exits a SS window (t,x,y,z,Px,Py,Pz). Units are ns, mm, MeV/c.

! HRRL positron beamline, version 3 TITLE,"HRRL POSITRON BEAMLINE (HPBv3 2009.05.27)";

...234.6 keV electron and a 894.2 keV positron at time t=3.336 ns. Only the positron has enough energy to exit the stainless steel window.

* [[The Cebaf High Intensity Positron Source]] * [[IAC positron beamline]]

40 MeV electrons are hitting the positron production Tungsten target | 6503 || 3 min 46 s ( pulses) || Dipoles in positron mode. Al Brick in along 8 inch length

(b)~to build a positron source for the IAC which could serve as a (Q0); positron production target (PT); 45-degree dipoles (D1 and

|Targ1 || positron production target || 1.175 m ||

Project Title: The Development of a Positron Source for JLab at the IAC ...he low positron efficiency observed can be greatly improved by placing the production target within a magnetic collection field instead of outside.

...ce. The transverse beam emittance of the HRRL was measured to optimize the production of positrons using an intense electron beam on a Tungsten converter. In th ...Hz. The transverse beam emittance of the HRRL was measured to optimize the production of positrons using an intense electron beam on a Tungsten converter. In th

\title{PROPOSAL FOR POSITRON PRODUCTION EFFICIENCY STUDY USING HIGH REPETITION RATE LINAC AT IAC} ...ection system and associated beam line components and measure the positron production efficiency using the HRRL.}

#Measure background rates for positron production 6.)Set the last dipole to deliver the max positron yield when the last two quads are off.

Below are three possible configurations for a positron beam line at the IAC. They are listed in order of increasing complexity an = Positron beamline =

/* Initialize the electron and positron particle structs based on the /* Calculate positron energy and particle rest energy*/

...ized a beam line to improve that experiment and will quantify the positron production efficiency. I am constructing an achromatic electron beam line to test positron production using the High Rep Rate Linac (HRRL) at Idaho State University's (ISU) Ida

Positron Runs with DAQ ...50 to raise trigger threshold. '''Insert 4" thick Aluminum''' in front of positron stop. SHould see rate die if we have positrons but gammas will come throug

struct particle *p, /* particle struct for positron */ * momentum for the positron */

...antimony after 36 hours was demonstrated indicating the potential for mass production of Sb-119 for radiotherapy. ...mount of Sb-119 that is separated. Irradiate another sample to improve Sb production based on the separation results of the first sample (may need to adjust irr

= A Positron Source for JLAB= | 3 || 1/10|| 1/10|| Completed Positron beamline design

== Positron Beam == ...ns, and the main challenge is increasing the intensity (or current) of the positron beam.

...ortional to the energy of the electron and the energy of the positron. The positron can also annihilate within the detector, which can create 511 keV peaks.

/cache/mss/clas/eg1b/production/pass1/v1/4p2gev/misc/dst/dst28509_00.B00 scp tforest@ftp.jlab.org:/cache/mss/clas/eg1b/production/pass1/v1/4p2gev/misc/dst/dst28181_03.B00 ~/data/

...inuing at ISU as an SBIR initiative and can be used to develop a polarized positron source that will facilitate charge symmetry measurements at Jefferson Lab. | Sadiq || Ph.D Physics|| Positron source for JLab

We are constructing a achromatic positron source in the Beam Lab of Department of Physics at Idaho State University. ...at the center of the accelerator cell, as shown in figure below. To adapt positron project, it was relocated to new position, as shown in same figure.

accountability. The method for the production of {\bf Proposed production of linearly polarized photons }\\

= Resume positron production using 10 MeV eletrons= Dipole magnets and quad magnets are set to 2 MeV positron mode.

> Option PRODUCTIONCUT: Production cut for root, in mm | positron-Nuclear

The above equations represent the physics of incoherent bremsstrahlung production. :<math>T_C</math> = incident particle K.E. cutof = secondary particle production threshold

omy. One local company, Positron Systems, has already spun off from work done by the production of isotopes for medical applications in a local hospital.

...esearch record in areas ranging from the radiochemistry of medical isotope production to nuclear physics applications addressing homeland security issues in coop ...w linac in a heavily shielded room with a high current for medical isotope production. We propose adding to this facility a target system optimized to produces

...interactions such as the photoelectric effect, compton scattering and pair production to describe multiple interactions of particles with matter using the montec ...red before the physics of the problem changes (ie: nuclear excitation, jet production, ...). The de Borglie wavelength of the atom is used to estimate a value f

Preface: International Workshop on Positron Physics at Jefferson Lab (JPos17) ...S Collaboration), "Target and Double Spin Asymmetries of Deeply Virtual π0 Production with a Longitudinally Polarized Proton Target at CLAS", Phys. Lett. B 768,

...photon and the target nucleon, and the mechanism of associated strangeness production in electromagnetic reactions. Dr.~Dan Dale is a spokesperson of the PrimEx ...m a precision measurement of the neutral pion lifetime using the Primakoff production mechanism. The PI of this proposal, Dr.~Dustin McNulty, has recently joined

\hspace{0.5in}The production rate ($\frac{dN}{dt}$) is given by \cite{Reference1} ...ce in half lives (57.28 minutes for Se-81 and 120 days for Se-75), the net production rate will be higher for Se-75 than Se-81 if they are irradiated at the same

omy. One local company, Positron Systems, has already spun off from work done by the production of isotopes for medical applications in a local hospital.