TF NEUP 2011 - Revision history

Foretony: /* Benefits of Collaboration */

2011-10-27T20:55:44Z

Benefits of Collaboration

Foretony: /* Budget */

2011-10-27T20:11:22Z

Budget

Foretony: /* Budget */

2011-10-27T17:53:46Z

Budget

Foretony: /* Timeline */

2011-10-27T17:53:22Z

Timeline

Foretony: /* Logical pathway to work accomplishments */

2011-10-27T17:52:05Z

Logical pathway to work accomplishments

Foretony: /* Logical pathway to work accomplishments */

2011-10-27T17:50:34Z

Logical pathway to work accomplishments

Foretony: /* Logical pathway to work accomplishments */

2011-10-27T17:45:29Z

Logical pathway to work accomplishments

Foretony: /* Logical pathway to work accomplishments */

2011-10-27T17:44:46Z

Logical pathway to work accomplishments

Foretony: /* Logical pathway to work accomplishments */

2011-10-27T17:42:01Z

Logical pathway to work accomplishments

Foretony: /* Logical pathway to work accomplishments */

2011-10-27T17:38:08Z

Logical pathway to work accomplishments

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-Some additional accelerator facilities at Idaho State University include another 25 MeV S-band linac, a 12 MeV a Pelletron, a 9.5 MeV, 10kA pulsed-power machine, and a 16 MeV High Repetition Rate Linac. If funded, the technical experience involved in constructing and maintaining such accelerator systems will be brought to bear on this project.
-Both PNNL and IAC/ISU personnel will be involved in all aspects of this project. PNNL personnel have particular expertise and experience in photon tagger development, and will therefore take the lead role on this side of the project. Similarly, IAC personnel will take the lead role on the accelerator development side. The two collaborating institutions will take equally active roles in the supervision and mentoring of graduate students, as well as the development and execution of the physics program that this facility will enable. This will entail frequent visits to each others’ facilities for technical exchanges, joint seminars, and coordinated efforts in the recruiting of students.
+The Idaho State University Department of Physics Strategic Plan identifies the use of experimental nuclear physics techniques as its focus area to addressing problems in both fundamental and applied science. The major efforts of the department include fundamental nuclear and particle physics, nuclear reactor fuel cycle physics, nuclear non-proliferation and homeland security, accelerator applications, radiation effects in materials and devices, and biology. One of the key ingredients to the department's success has been the completion of the Idaho Accelerator Center (IAC) on April 30, 1999. A substantial amount of lab space (4000 sq.~ft.) within the department has become available due to a combination of the IAC and a remodeling of the physics building. The Physics department has recently added a 400 sq.~ft., class 10,000 clean room that is current;y being used to build large drift chambers that are about 6 feet high and contain more than 4500 wires.
-The Idaho State University Department of Physics Strategic Plan identifies the use of experimental nuclear physics techniques as its focus area to addressing problems in both fundamental and applied science. The major efforts of the department include fundamental nuclear and particle physics, nuclear reactor fuel cycle physics, nuclear non-proliferation and homeland security, accelerator applications, radiation effects in materials and devices, and biology. One of the key ingredients to the department's success has been the completion of the Idaho Accelerator Center (IAC) on April 30, 1999. A substantial amount of lab space (4000 sq.~ft.) within the department has become available due to a combination of the IAC and a remodeling of the physics building. A 400 sq.~ft., class 10,000 clean room has been constructed at ISU to build the Region I drift chambers for Hall~B's 12 GeV detector upgrade.
+The Idaho Accelerator Center (IAC) is located less than a mile away from campus and can provide a computer controlled a machining facility for detector construction, an electronics shop for installation of instrumentation, and beamtime for detector performance studies. The IAC houses ten operating accelerators as well as a machine and electronics shop with a permanent staff of 8 Ph.D.s and 6 engineers. Among its many accelerator systems, the Center houses a 16 MeV Linac capable of delivering 20~ns to 2~$\mu$s electron pulses with an instantaneous current of 80 mA up to an energy of 25 MeV at pulse rates up to 1~kHz.  Some additional accelerator facilities at Idaho State University include another 25 MeV S-band linac, a 12 MeV a Pelletron, a 9.5 MeV, and 10kA pulsed-power machine.  A full description of the facility is available at the web site (www.iac.isu.edu).
 =Neutron fluxes in reactors=

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 We request total of $290,000 for a period of three years to defray the costs of this Program Supporting development of an improved fission chamber.
 The main expense will be for a graduate student ($50k) and some faculty mentor time ($20k) per  year.  Equipment construction and beam time expenses are also requested in the amount of $30k per year.
 =Neutron fluxes in reactors=

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 =Budget=
 We request total of $290,000 for a period of three years to defray the costs of this Program Supporting development of an improved fission chamber.
-The main expense will be for a graduate student ($50k) and some faculty mentor time ($20k) per  year.  equipment construction and beam time expenses are also requested in the amount of $30k per year.
+The main expense will be for a graduate student ($50k) and some faculty mentor time ($20k) per  year.  Equipment construction and beam time expenses are also requested in the amount of $30k per year.
 =Neutron fluxes in reactors=

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 =Timeline=
-This project spans a three year period.  year one will be devoted to machining the components of a fission chamber equipped with gas electron multipliers.   Assembly of the detector with a fission target will be completed in year 2.  In the final year, the device will be tested using neutrons generated by the bremstrahlung photons from electrons accelerated by a 16 MeV Linac that impinge on a target of Deuterated water.
+This project spans a three year period.  Year one will be devoted to machining the components of a fission chamber equipped with gas electron multipliers.   Assembly of the detector with a fission target will be completed in year 2.  In the final year, the device will be tested using neutrons generated by the bremstrahlung photons from electrons accelerated by a 16 MeV Linac that impinge on a target of deuterated water (HDO).
 =Budget=

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 focus on the construction of a fission chamber with gas electron multiplication pre-amplifiers.  The PI of this proposal has produced several ionization chambers equipped with gas electron multipliers that are constructed from copper clad kapton foils.  A comparison of the output signal from an ionization chamber with the gas electron multiplier pre-amplifier is shown in the figure below along with a typical signal from a drift chamber (geiger muller tube) detector.  The duration of the output pulse is at least a factor of two longer for an ionization chamber which does not use gas electron multiplication.   The output pulse of the gas electron multiplier equipped chamber is also more gaussian like.  THis performance occurs because the ionization region within the detector can be reduced in size using the preamplifiers.  The ionized particle in the chamber have a shorter drift distance and result in a faster output signal response.  The objective in this proposal will be to add a fissionable material to an ionization chamber making it neutron sensitive.
-The next logical step will be to test the proposed instrument response to neutrons.  The figure below illustrates a neutral particle time of flight measurement using the High Rep Rate Linac facility that is managed by the Idaho Accelerator Center and located at Idaho State University's physics department.  A Tungsten radiation was used in conjuction with a 15 MeV electron beam to  create a photon source from Bremstrahlung radiation.  The emmitted photons entered the experimental cell which held either a water or deuterated water (HDO)  target.  A NaI detector was positioned 2 meters away from the target and at the azimuthal angle of 90 degrees to detect neutral particles.  The hatched peaks in the histrogram represent the NaI detector measurement when using a water target.  The un-hatched histogram shows a clear neutron event enhancement when using the HDO target.  We observed an integrated neutron rate of 50 Hz in the 2 cm x 2 cm NaI detector.
+The next logical step will be to test the proposed instrument response to neutrons.  The figure below illustrates a neutral particle time of flight measurement using the High Rep Rate Linac facility that is managed by the Idaho Accelerator Center and located at Idaho State University's physics department.  A Tungsten radiation was used in conjuction with a 15 MeV electron beam to  create a photon source from Bremstrahlung radiation.  The emmitted photons entered the experimental cell which held either a water or deuterated water (HDO)  target.  A NaI detector was positioned 2 meters away from the target and at the azimuthal angle of 90 degrees to detect neutral particles.  The hatched peaks in the histrogram represent the NaI detector measurement when using a water target.  The un-hatched histogram shows a clear neutron event enhancement when using the HDO target.  We observed an integrated neutron rate of 50 Hz in the 2 cm x 2 cm NaI detector.  We propose using this device to test the temporal performance of a gas electron multiplier equipped fission chamber.
 =Deliverables and outcomes=