High Voltage Delivery and Distribution for the NEXT-100 Time Projection Chamber
Abstract
A critical element in the realization of large liquid and gas time projection chambers (TPCs) is the delivery and distribution of high voltages into and around the detector. Such experiments require of order tens of kilovolts to enable electron drift over meter-scale distances. This paper describes the design and operation of the cathode feedthrough and high voltage distribution through the field cage of the NEXT-100 experiment, an underground TPC that will search for neutrinoless double beta decay . The feedthrough has been demonstrated to hold pressures up to 20~bar and sustain voltages as high as -65~kV, and the TPC is operating stably at its design high voltages. The system has been realized within the constraints of a stringent radiopurity budget and is now being used to execute a suite of sensitive double beta decay analyses.
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Cite
@article{arxiv.2505.01002,
title = {High Voltage Delivery and Distribution for the NEXT-100 Time Projection Chamber},
author = {NEXT Collaboration and C. Adams and H. Almazán and V. Álvarez and K. Bailey and R. Guenette and B. J. P. Jones and S. Johnston and K. Mistry and F. Monrabal and D. R. Nygren and B. Palmeiro and L. Rogers and J. Waldschmidt and B. Aparicio and A. I. Aranburu and L. Arazi and I. J. Arnquist and F. Auria-Luna and S. Ayet and C. D. R. Azevedo and F. Ballester and M. del Barrio-Torregrosa and A. Bayo and J. M. Benlloch-Rodríguez and F. I. G. M. Borges and A. Brodolin and S. Cárcel and A. Castillo and L. Cid and C. A. N. Conde and T. Contreras and F. P. Cossío and R. Coupe and E. Dey and G. Díaz and C. Echevarria and M. Elorza and J. Escada and R. Esteve and R. Felkai and L. M. P. Fernandes and P. Ferrario and A. L. Ferreira and F. W. Foss and Z. Freixa and J. García-Barrena and J. J. Gómez-Cadenas and J. W. R. Grocott and R. Guenette and J. Hauptman and C. A. O. Henriques and J. A. Hernando Morata and P. Herrero-Gómez and V. Herrero and C. Hervés Carrete and Y. Ifergan and F. Kellerer and L. Larizgoitia and A. Larumbe and P. Lebrun and F. Lopez and N. López-March and R. Madigan and R. D. P. Mano and A. P. Marques and J. Martín-Albo and G. Martínez-Lema and M. Martínez-Vara and R. L. Miller and J. Molina-Canteras and F. Monrabal and C. M. B. Monteiro and F. J. Mora and P. Novella and A. Nuñez and E. Oblak and J. Palacio and B. Palmeiro and A. Para and A. Pazos and J. Pelegrin and M. Pérez Maneiro and M. Querol and J. Renner and I. Rivilla and C. Rogero and B. Romeo and C. Romo-Luque and V. San Nacienciano and F. P. Santos and J. M. F. dos Santos and M. Seemann and I. Shomroni and P. A. O. C. Silva and A. Simón and S. R. Soleti and M. Sorel and J. Soto-Oton and J. M. R. Teixeira and S. Teruel-Pardo and J. F. Toledo and C. Tonnelé and S. Torelli and J. Torrent and A. Trettin and A. Usón and P. R. G. Valle and J. F. C. A. Veloso and J. Waiton and A. Yubero-Navarro},
journal= {arXiv preprint arXiv:2505.01002},
year = {2025}
}