TY  - CONF
AU  - Shao, J.H.
AU  - Baryshev, S.V.
AU  - Chen, G.
AU  - Conde, M.E.
AU  - Kovi, K.
AU  - Liu, W.
AU  - Power, J.G.
AU  - Schneider, M.S.
AU  - Spentzouris, L.K.
AU  - Wisniewski, E.E.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Systematic Benchmarking of a Planar (N)UNCD Field Emission Cathode
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Planar nitrogen-incorporated ultrananocrystalline diamond, (N)UNCD, is a unique and attractive field emission source because of the capability to generate high charge beam, the simplicity of production without shaped emitters, and the ease of handling with moderate vacuum requirement. In the presented study using an L-band normal conducting single-cell rf gun, a (N)UNCD cathode has been conditioned to 42 MV/m with a well-controlled manner and reached a maximum charge of 15 nC and an average emission current of 6~mA during a 2.5 us emission period. The systematic study of emission properties during the rf conditioning process illustrates the tunability of (N)UNCD in a wide range of surface gradients. This research demonstrates the versatility of (N)UNCD cathode which could enable multiple designs of field emission rf injector for industrial and scientific applications.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2083
EP  - 2086
KW  - cathode
KW  - gun
KW  - experiment
KW  - electron
KW  - ECR
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUPTS070
UR  - http://jacow.org/ipac2019/papers/tupts070.pdf
ER  - 

TY  - CONF
AU  - Abrams, R.J.
AU  - Cummings, M.A.
AU  - Johnson, R.P.
AU  - Kaplan, D.M.
AU  - Roberts, T.J.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Radiation Hard Sensor for Reactor Applications
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A novel method of measuring temperature of the coolant inside a reactor core is presented. The method, which is both standoff and non-invasive, is based on the interaction between an ultrasonic pulse and a delayed light pulse in the coolant. In the interaction, the light pulse, which is scattered backward by Brillouin scattering, is frequency-shifted. The frequency shift is dependent on the temperature and other parameters of the coolant. The light pulses and the ultrasound pulses are generated and detected outside of the core.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3545
EP  - 3547
KW  - laser
KW  - GUI
KW  - radiation
KW  - timing
KW  - detector
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPMP044
UR  - http://jacow.org/ipac2019/papers/thpmp044.pdf
ER  -