Phonetic transliteration:
潘 ('pān') +
宁 ('níng') for 'Pen-ning.' In Chinese physics literature you'll see
潘宁阱 (Pānníng jǐng, 'Penning trap'), named after Dutch physicist Frans Michel Penning.
潘 is also a common Chinese surname (e.g. director Pan Hong), so
潘宁 reads naturally as a Chinese personal name too.