Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atm

Gonzalez-Diaz, Diego; Alvarez, V.; Borges, F.; Camargo, M.; Carcel, S.; Cebrian, S.; Cervera, A.; Conde, C.; Dafni, T.; Diaz, J.; Esteve, R.; Fernandes, L.; Ferrari, P.; Ferreira, A.; Freitas, E.; Gehmani, V.; Goldschmidt, A.; Gomez-Cadenas, J.; Gutierrez, R.; Hauptman, J.; Hernando Morata, J.; Herrera, D.; Irastorza, I.; Labarga, L.; Laing, A.; Liubarsky, I.; Lopez-March, N.; Lorca, D.; Losada, M.; Luzon, G.; Mari, A.; Martin-Albo, J.; Martinez-Lema, G.; Martinez, A.; Miller, T.; Monrabal, F.; Monserrate, M.; Monteiro, C.; Mora, F.; Moutinho, L.; Munoz Vidal, J.; Nebot-Guinot, M.; Nygren, D.; Oliveira, C.; Perez, J.; Perez Aparicio, J.; Querol, M.; Renner, J.; Ripoll, L.; Rodriguez, J.; Santos, F.; dos Santos, J.; Serra, L.; Shuman, D.; Simon, A.; Sofka, C.; Sorel, M.; Toledo, J.; Torrent, J.; Tsamalaidze, Z.; Veloso, J.; Villar, J.; Webb, R.; White, J.; Yahlali, N.; Azevedo, C.; Aznarab, F.; Calvet, D.; Castel, J.; Ferrer-Ribas, E.; Garcia, J.; Giomataris, I.; Gomez, H.; Iguaz, F.; Lagraba, A.; Le Coguie, A.; Mols, J.; Sahin, ÖZKAN; Rodriguez, A.; Ruiz-Choliz, E.; Segui, L.; Tomas, A.; Veenhof, R.

doi:10.1016/j.nima.2015.08.033

Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atm

Gonzalez-Diaz D., Alvarez V., Borges F. I. G., Camargo M., Carcel S., Cebrian S., ...Daha Fazla

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, cilt.804, ss.8-24, 2015 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 804
Basım Tarihi: 2015
Doi Numarası: 10.1016/j.nima.2015.08.033
Dergi Adı: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.8-24
Anahtar Kelimeler: Double-beta decay, Gamma and electron detection, Microbulk micromegas, Time projection chamber, High pressure Xenon-Trimehylamine, Penning-Fluorescent mixtures, TRIMETHYLAMINE, FLUCTUATIONS
Bursa Uludağ Üniversitesi Adresli: Evet

Özet

We report the performance of a 10 atm Xenon/trimethylamine time projection chamber (TPC) for the detection of X-rays (30 keV) and gamma-rays (0.511-1.275 MeV) in conjunction with the accurate tracking of the associated electrons. When operated at such a high pressure and in similar to 1%-admixtures, trimethylamine (TMA) endows Xenon with an extremely low electron diffusion (1.3 +/- 0.13 mm-sigma (longitudinal), 0.95 +/- 0.20 mm-sigma (transverse) along 1 m drift) besides forming a convenient Penning-Fluorescent' mixture. The TPC, that houses 1.1 kg of gas in its fiducial volume, operated continuously for 100 live-days in charge amplification mode. The readout was performed through the recently introduced microbulk Micromegas technology and the AFTER chip, providing a 3D voxelization of 8 mm x 8 mm x 1.2 mm for approximately 10 cm/MeV-long electron tracks. Resolution in energy (epsilon) at full width half maximum (R) inside the fiducial volume ranged from R = 14.6% (30 keV) to R = 4.6% (1.275 MeV).